--- a/cbctools/change_OP_to_cbc.pl	Tue Oct 09 19:44:37 2018 +0900
+++ b/cbctools/change_OP_to_cbc.pl	Tue Oct 16 17:41:23 2018 +0900
@@ -60,7 +60,7 @@
         # $iの部分の関数定義を次ループでするために一行戻して再ループ
 
         if ($cbc_lines[$i] =~ /^\s+OP\((.*)\):/){
-            push @rewritec,"    goto $1(i);\n";
+            push @rewritec,"    goto cbc_$1(i);\n";
             #push @rewritec,"$indent   goto $1(i);\n";
             insert_right_blanket();
             $i--;

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/core/cbc-interp.cbc	Tue Oct 16 17:41:23 2018 +0900
@@ -0,0 +1,6506 @@
+#include "moar.h"
+#include <math.h>
+#include "platform/time.h"
+#include "platform/sys.h"
+#include "strings/unicode_ops.h"
+#include "oplables-cbc-codes.h"
+
+/* Macros for getting things from the bytecode stream. */
+#if MVM_GC_DEBUG == 2
+MVM_STATIC_INLINE MVMuint16 check_reg(MVMThreadContext *tc, MVMRegister *reg_base, MVMuint16 idx) {
+    MVMFrame *f = tc->cur_frame;
+    MVMuint16 kind = f->spesh_cand && f->spesh_cand->local_types
+        ? f->spesh_cand->local_types[idx]
+        : f->static_info->body.local_types[idx];
+    if (kind == MVM_reg_obj || kind == MVM_reg_str)
+        MVM_ASSERT_NOT_FROMSPACE(tc, reg_base[idx].o);
+    return idx;
+}
+/* The bytecode stream is OPs (16 bit numbers) followed by the (16 bit numbers) of the registers
+ * the OP needs (return register + argument registers. The pc will point to the first place after
+ * the current op, i.e. the first 16 bit register number. We add the requested number to that and
+ * use the result as index into the reg_base array which stores the frame's locals. */
+#define GET_REG(pc, idx)    reg_base[check_reg(tc, reg_base, *((MVMuint16 *)(pc + idx)))]
+#else
+#define GET_REG(pc, idx)    reg_base[*((MVMuint16 *)(pc + idx))]
+#endif
+#if MVM_GC_DEBUG == 2
+MVM_STATIC_INLINE MVMuint16 check_lex(MVMThreadContext *tc, MVMFrame *f, MVMuint16 idx) {
+    MVMuint16 kind = f->spesh_cand && f->spesh_cand->lexical_types
+        ? f->spesh_cand->lexical_types[idx]
+        : f->static_info->body.lexical_types[idx];
+    if (kind == MVM_reg_obj || kind == MVM_reg_str)
+        MVM_ASSERT_NOT_FROMSPACE(tc, f->env[idx].o);
+    return idx;
+}
+#define GET_LEX(pc, idx, f) f->env[check_lex(tc, f, *((MVMuint16 *)(pc + idx)))]
+#else
+#define GET_LEX(pc, idx, f) f->env[*((MVMuint16 *)(pc + idx))]
+#endif
+#define GET_I16(pc, idx)    *((MVMint16 *)(pc + idx))
+#define GET_UI16(pc, idx)   *((MVMuint16 *)(pc + idx))
+#define GET_I32(pc, idx)    *((MVMint32 *)(pc + idx))
+#define GET_UI32(pc, idx)   *((MVMuint32 *)(pc + idx))
+#define GET_N32(pc, idx)    *((MVMnum32 *)(pc + idx))
+
+#define NEXT_OP(i) (i->op = *(MVMuint16 *)(i->cur_op), i->cur_op += 2, i->op)
+
+#if MVM_CGOTO
+#define DISPATCH(op)
+#define OP(name) OP_ ## name
+#define NEXT(i) CODES[NEXT_OP] (i)
+#else
+#define DISPATCH(op) switch (op)
+#define OP(name) case MVM_OP_ ## name
+#define NEXT runloop
+#endif
+
+static int tracing_enabled = 0;
+typedef struct interp {
+    MVMuint16 op;
+    /* Points to the place in the bytecode right after the current opcode. */
+    /* See the NEXT_OP macro for making sense of this */
+    MVMuint8 *cur_op;
+
+    /* The current frame's bytecode start. */
+    MVMuint8 *bytecode_start;
+
+    /* Points to the base of the current register set for the frame we
+     * are presently in. */
+    MVMRegister *reg_base;
+
+    /* Points to the current compilation unit. */
+    MVMCompUnit *cu;
+
+    /* The current call site we're constructing. */
+    MVMCallsite *cur_callsite;
+
+    MVMThreadContext *tc;
+} INTER,*INTERP;
+
+__code cbc_no_op(INTERP i){
+    goto NEXT(i);
+}
+__code cbc_const_i8(INTERP i){
+    goto cbc_const_i16(i);
+}
+__code cbc_const_i16(INTERP i){
+    goto cbc_const_i32(i);
+}
+__code cbc_const_i32(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "const_iX NYI");
+}
+__code cbc_const_i64(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_BC_get_I64(i->cur_op, 2);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_const_n32(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "const_n32 NYI");
+}
+__code cbc_const_n64(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = MVM_BC_get_N64(i->cur_op, 2);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_const_s(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2));
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_set(INTERP i){
+    GET_REG(i->cur_op, 0) = GET_REG(i->cur_op, 2);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_extend_u8(INTERP i){
+    GET_REG(i->cur_op, 0).u64 = (MVMuint64)GET_REG(i->cur_op, 2).u8;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_extend_u16(INTERP i){
+    GET_REG(i->cur_op, 0).u64 = (MVMuint64)GET_REG(i->cur_op, 2).u16;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_extend_u32(INTERP i){
+    GET_REG(i->cur_op, 0).u64 = (MVMuint64)GET_REG(i->cur_op, 2).u32;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_extend_i8(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = (MVMint64)GET_REG(i->cur_op, 2).i8;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_extend_i16(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = (MVMint64)GET_REG(i->cur_op, 2).i16;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_extend_i32(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = (MVMint64)GET_REG(i->cur_op, 2).i32;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_trunc_u8(INTERP i){
+    GET_REG(i->cur_op, 0).u8 = (MVMuint8)GET_REG(i->cur_op, 2).u64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_trunc_u16(INTERP i){
+    GET_REG(i->cur_op, 0).u16 = (MVMuint16)GET_REG(i->cur_op, 2).u64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_trunc_u32(INTERP i){
+    GET_REG(i->cur_op, 0).u32 = (MVMuint32)GET_REG(i->cur_op, 2).u64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_trunc_i8(INTERP i){
+    GET_REG(i->cur_op, 0).i8 = (MVMint8)GET_REG(i->cur_op, 2).i64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_trunc_i16(INTERP i){
+    GET_REG(i->cur_op, 0).i16 = (MVMint16)GET_REG(i->cur_op, 2).i64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_trunc_i32(INTERP i){
+    GET_REG(i->cur_op, 0).i32 = (MVMint32)GET_REG(i->cur_op, 2).i64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_extend_n32(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = (MVMnum64)GET_REG(i->cur_op, 2).n32;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_trunc_n32(INTERP i){
+    GET_REG(i->cur_op, 0).n32 = (MVMnum32)GET_REG(i->cur_op, 2).n64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_goto(INTERP i){
+    i->cur_op = bytecode_start + GET_UI32(i->cur_op, 0);
+    GC_SYNC_POINT(i->tc);
+    goto NEXT(i);
+}
+__code cbc_if_i(INTERP i){
+    if (GET_REG(i->cur_op, 0).i64)
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 2);
+    else
+        i->cur_op += 6;
+    GC_SYNC_POINT(i->tc);
+    goto NEXT(i);
+}
+__code cbc_unless_i(INTERP i){
+    if (GET_REG(i->cur_op, 0).i64)
+        i->cur_op += 6;
+    else
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 2);
+    GC_SYNC_POINT(i->tc);
+    goto NEXT(i);
+}
+__code cbc_if_n(INTERP i){
+    if (GET_REG(i->cur_op, 0).n64 != 0.0)
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 2);
+    else
+        i->cur_op += 6;
+    GC_SYNC_POINT(i->tc);
+    goto NEXT(i);
+}
+__code cbc_unless_n(INTERP i){
+    if (GET_REG(i->cur_op, 0).n64 != 0.0)
+        i->cur_op += 6;
+    else
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 2);
+    GC_SYNC_POINT(i->tc);
+    goto NEXT(i);
+}
+__code cbc_if_s(INTERP i){
+    MVMString *str = GET_REG(i->cur_op, 0).s;
+    if (!str || MVM_string_graphs(i->tc, str) == 0)
+        i->cur_op += 6;
+    else
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 2);
+    GC_SYNC_POINT(i->tc);
+    goto NEXT(i);
+            }
+__code cbc_unless_s(INTERP i){
+    MVMString *str = GET_REG(i->cur_op, 0).s;
+    if (!str || MVM_string_graphs(i->tc, str) == 0)
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 2);
+    else
+        i->cur_op += 6;
+    GC_SYNC_POINT(i->tc);
+    goto NEXT(i);
+            }
+__code cbc_if_s0(INTERP i){
+    MVMString *str = GET_REG(i->cur_op, 0).s;
+    if (!MVM_coerce_istrue_s(i->tc, str))
+        i->cur_op += 6;
+    else
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 2);
+    GC_SYNC_POINT(i->tc);
+    goto NEXT(i);
+            }
+__code cbc_unless_s0(INTERP i){
+    MVMString *str = GET_REG(i->cur_op, 0).s;
+    if (!MVM_coerce_istrue_s(i->tc, str))
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 2);
+    else
+        i->cur_op += 6;
+    GC_SYNC_POINT(i->tc);
+    goto NEXT(i);
+            }
+__code cbc_if_o(INTERP i){
+    GC_SYNC_POINT(i->tc);
+    MVM_coerce_istrue(i->tc, GET_REG(i->cur_op, 0).o, NULL,
+        bytecode_start + GET_UI32(i->cur_op, 2),
+        i->cur_op + 6,
+        0);
+    goto NEXT(i);
+}
+__code cbc_unless_o(INTERP i){
+    GC_SYNC_POINT(i->tc);
+    MVM_coerce_istrue(i->tc, GET_REG(i->cur_op, 0).o, NULL,
+        bytecode_start + GET_UI32(i->cur_op, 2),
+        i->cur_op + 6,
+        1);
+    goto NEXT(i);
+}
+__code cbc_jumplist(INTERP i){
+    MVMint64 num_labels = MVM_BC_get_I64(i->cur_op, 0);
+    MVMint64 input = GET_REG(i->cur_op, 8).i64;
+    i->cur_op += 10;
+    /* the goto ops are guaranteed valid/existent by validation.c */
+    if (input < 0 || input >= num_labels) { /* implicitly covers num_labels == 0 */
+        /* skip the entire goto list block */
+        i->cur_op += (6 /* size of each goto op */) * num_labels;
+    }
+    else { /* delve directly into the selected goto op */
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op,
+            input * (6 /* size of each goto op */)
+            + (2 /* size of the goto instruction itself */));
+    }
+    GC_SYNC_POINT(i->tc);
+    goto NEXT(i);
+            }
+__code cbc_getlex(INTERP i){
+    MVMFrame *f = i->tc->cur_frame;
+    MVMuint16 idx = GET_UI16(i->cur_op, 2);
+    MVMuint16 outers = GET_UI16(i->cur_op, 4);
+    MVMuint16 *lexical_types;
+    while (outers) {
+        if (!f->outer)
+            MVM_exception_throw_adhoc(i->tc, "getlex: outer index out of range");
+        f = f->outer;
+        outers--;
+    }
+    lexical_types = f->spesh_cand && f->spesh_cand->lexical_types
+        ? f->spesh_cand->lexical_types
+        : f->static_info->body.lexical_types;
+    if (lexical_types[idx] == MVM_reg_obj) {
+        MVMRegister found = GET_LEX(i->cur_op, 2, f);
+        MVMObject *value = found.o == NULL
+            ? MVM_frame_vivify_lexical(i->tc, f, idx)
+            : found.o;
+        GET_REG(i->cur_op, 0).o = value;
+        if (MVM_spesh_log_is_logging(i->tc))
+            MVM_spesh_log_type(i->tc, value);
+    }
+    else {
+        GET_REG(i->cur_op, 0) = GET_LEX(i->cur_op, 2, f);
+    }
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_bindlex(INTERP i){
+    MVMFrame *f = i->tc->cur_frame;
+    MVMuint16 outers = GET_UI16(i->cur_op, 2);
+    MVMuint16 kind = f->spesh_cand && f->spesh_cand->local_types
+        ? f->spesh_cand->local_types[GET_UI16(i->cur_op, 4)]
+        : f->static_info->body.local_types[GET_UI16(i->cur_op, 4)];
+    while (outers) {
+        if (!f->outer)
+            MVM_exception_throw_adhoc(i->tc, "bindlex: outer index out of range");
+        f = f->outer;
+        outers--;
+    }
+    if (kind == MVM_reg_obj || kind == MVM_reg_str) {
+#if MVM_GC_DEGUG
+        MVM_ASSERT_NOT_FROMSPACE(i->tc, GET_REG(i->cur_op, 4).o);
+#endif
+        MVM_ASSIGN_REF(i->tc, &(f->header), GET_LEX(i->cur_op, 0, f).o,
+            GET_REG(i->cur_op, 4).o);
+    }
+    else {
+        GET_LEX(i->cur_op, 0, f) = GET_REG(i->cur_op, 4);
+    }
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_getlex_ni(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_frame_find_lexical_by_name(i->tc,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_reg_int64)->i64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_getlex_nn(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = MVM_frame_find_lexical_by_name(i->tc,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_reg_num64)->n64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_getlex_ns(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_frame_find_lexical_by_name(i->tc,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_reg_str)->s;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_getlex_no(INTERP i){
+    MVMRegister *found = MVM_frame_find_lexical_by_name(i->tc,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_reg_obj);
+    if (found) {
+        GET_REG(i->cur_op, 0).o = found->o;
+        if (MVM_spesh_log_is_logging(i->tc))
+            MVM_spesh_log_type(i->tc, found->o);
+    }
+    else {
+        GET_REG(i->cur_op, 0).o = i->tc->instance->VMNull;
+    }
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_bindlex_ni(INTERP i){
+    MVM_frame_bind_lexical_by_name(i->tc,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 0)),
+        MVM_reg_int64, &(GET_REG(i->cur_op, 4)));
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_bindlex_nn(INTERP i){
+    MVM_frame_bind_lexical_by_name(i->tc,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 0)),
+        MVM_reg_num64, &(GET_REG(i->cur_op, 4)));
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_bindlex_ns(INTERP i){
+    MVM_frame_bind_lexical_by_name(i->tc,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 0)),
+        MVM_reg_str, &(GET_REG(i->cur_op, 4)));
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_bindlex_no(INTERP i){
+    MVM_frame_bind_lexical_by_name(i->tc,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 0)),
+        MVM_reg_obj, &(GET_REG(i->cur_op, 4)));
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_getlex_ng(INTERP i){
+    goto cbc_bindlex_ng(i);
+}
+__code cbc_bindlex_ng(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "get/bindlex_ng NYI");
+}
+__code cbc_getdynlex(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_frame_getdynlex(i->tc, GET_REG(i->cur_op, 2).s,
+            i->tc->cur_frame->caller);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_binddynlex(INTERP i){
+    MVM_frame_binddynlex(i->tc, GET_REG(i->cur_op, 0).s, GET_REG(i->cur_op, 2).o,
+            i->tc->cur_frame->caller);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_setlexvalue(INTERP i){
+    MVMObject *code = GET_REG(i->cur_op, 0).o;
+    MVMString *name = MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2));
+    MVMObject *val  = GET_REG(i->cur_op, 6).o;
+    MVMint16   flag = GET_I16(i->cur_op, 8);
+    if (flag < 0 || flag > 2)
+        MVM_exception_throw_adhoc(i->tc, "setlexvalue provided with invalid flag");
+    if (IS_CONCRETE(code) && REPR(code)->ID == MVM_REPR_ID_MVMCode) {
+        MVMStaticFrame *sf = ((MVMCode *)code)->body.sf;
+        MVMuint8 found = 0;
+        if (!sf->body.fully_deserialized)
+            MVM_bytecode_finish_frame(i->tc, sf->body.cu, sf, 0);
+        if (sf->body.lexical_names) {
+            MVMLexicalRegistry *entry;
+            MVM_HASH_GET(i->tc, sf->body.lexical_names, name, entry);
+            if (entry && sf->body.lexical_types[entry->value] == MVM_reg_obj) {
+                MVM_ASSIGN_REF(i->tc, &(sf->common.header), sf->body.static_env[entry->value].o, val);
+                sf->body.static_env_flags[entry->value] = (MVMuint8)flag;
+                found = 1;
+            }
+        }
+        if (!found)
+            MVM_exception_throw_adhoc(i->tc, "setstaticlex given invalid lexical name");
+    }
+    else {
+        MVM_exception_throw_adhoc(i->tc, "setstaticlex needs a code ref");
+    }
+    i->cur_op += 10;
+    goto NEXT(i);
+            }
+__code cbc_lexprimspec(INTERP i){
+    MVMObject *ctx  = GET_REG(i->cur_op, 2).o;
+    MVMString *name = GET_REG(i->cur_op, 4).s;
+    if (REPR(ctx)->ID != MVM_REPR_ID_MVMContext || !IS_CONCRETE(ctx))
+        MVM_exception_throw_adhoc(i->tc, "lexprimspec needs a context");
+    GET_REG(i->cur_op, 0).i64 = MVM_frame_lexical_primspec(i->tc,
+        ((MVMContext *)ctx)->body.context, name);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_return_i(INTERP i){
+    if (MVM_spesh_log_is_logging(i->tc))
+        MVM_spesh_log_return_type(i->tc, NULL);
+    MVM_args_set_result_int(i->tc, GET_REG(i->cur_op, 0).i64,
+        MVM_RETURN_CALLER_FRAME);
+    if (MVM_frame_try_return(i->tc) == 0)
+        goto return_label;
+    goto NEXT(i);
+}
+__code cbc_return_n(INTERP i){
+    if (MVM_spesh_log_is_logging(i->tc))
+        MVM_spesh_log_return_type(i->tc, NULL);
+    MVM_args_set_result_num(i->tc, GET_REG(i->cur_op, 0).n64,
+        MVM_RETURN_CALLER_FRAME);
+    if (MVM_frame_try_return(i->tc) == 0)
+        goto return_label;
+    goto NEXT(i);
+}
+__code cbc_return_s(INTERP i){
+    if (MVM_spesh_log_is_logging(i->tc))
+        MVM_spesh_log_return_type(i->tc, NULL);
+    MVM_args_set_result_str(i->tc, GET_REG(i->cur_op, 0).s,
+        MVM_RETURN_CALLER_FRAME);
+    if (MVM_frame_try_return(i->tc) == 0)
+        goto return_label;
+    goto NEXT(i);
+}
+__code cbc_return_o(INTERP i){
+    MVMObject *value = GET_REG(i->cur_op, 0).o;
+    if (MVM_spesh_log_is_logging(i->tc)) {
+        MVMROOT(i->tc, value, {
+            MVM_spesh_log_return_type(i->tc, value);
+        });
+    }
+    MVM_args_set_result_obj(i->tc, value, MVM_RETURN_CALLER_FRAME);
+    if (MVM_frame_try_return(i->tc) == 0)
+        goto return_label;
+    goto NEXT(i);
+            }
+__code cbc_return(INTERP i){
+    if (MVM_spesh_log_is_logging(i->tc))
+        MVM_spesh_log_return_type(i->tc, NULL);
+    MVM_args_assert_void_return_ok(i->tc, MVM_RETURN_CALLER_FRAME);
+    if (MVM_frame_try_return(i->tc) == 0)
+        goto return_label;
+    goto NEXT(i);
+}
+__code cbc_eq_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_REG(i->cur_op, 2).i64 == GET_REG(i->cur_op, 4).i64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_ne_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_REG(i->cur_op, 2).i64 != GET_REG(i->cur_op, 4).i64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_lt_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_REG(i->cur_op, 2).i64 <  GET_REG(i->cur_op, 4).i64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_le_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_REG(i->cur_op, 2).i64 <= GET_REG(i->cur_op, 4).i64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_gt_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_REG(i->cur_op, 2).i64 >  GET_REG(i->cur_op, 4).i64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_ge_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_REG(i->cur_op, 2).i64 >= GET_REG(i->cur_op, 4).i64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_cmp_i(INTERP i){
+    MVMint64 a = GET_REG(i->cur_op, 2).i64, b = GET_REG(i->cur_op, 4).i64;
+    GET_REG(i->cur_op, 0).i64 = (a > b) - (a < b);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_add_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_REG(i->cur_op, 2).i64 + GET_REG(i->cur_op, 4).i64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_sub_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_REG(i->cur_op, 2).i64 - GET_REG(i->cur_op, 4).i64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_mul_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_REG(i->cur_op, 2).i64 * GET_REG(i->cur_op, 4).i64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_div_i(INTERP i){
+    MVMint64 num   = GET_REG(i->cur_op, 2).i64;
+    MVMint64 denom = GET_REG(i->cur_op, 4).i64;
+    /* if we have a negative result, make sure we floor rather
+     * than rounding towards zero. */
+    if (denom == 0)
+        MVM_exception_throw_adhoc(i->tc, "Division by zero");
+    if ((num < 0) ^ (denom < 0)) {
+        if ((num % denom) != 0) {
+            GET_REG(i->cur_op, 0).i64 = num / denom - 1;
+        } else {
+            GET_REG(i->cur_op, 0).i64 = num / denom;
+        }
+    } else {
+        GET_REG(i->cur_op, 0).i64 = num / denom;
+    }
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_div_u(INTERP i){
+    GET_REG(i->cur_op, 0).u64 = GET_REG(i->cur_op, 2).u64 / GET_REG(i->cur_op, 4).u64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_mod_i(INTERP i){
+    MVMint64 numer = GET_REG(i->cur_op, 2).i64;
+    MVMint64 denom = GET_REG(i->cur_op, 4).i64;
+    if (denom == 0)
+        MVM_exception_throw_adhoc(i->tc, "Modulation by zero");
+    GET_REG(i->cur_op, 0).i64 = numer % denom;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_mod_u(INTERP i){
+    GET_REG(i->cur_op, 0).u64 = GET_REG(i->cur_op, 2).u64 % GET_REG(i->cur_op, 4).u64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_neg_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = -GET_REG(i->cur_op, 2).i64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_abs_i(INTERP i){
+    MVMint64 v = GET_REG(i->cur_op, 2).i64, mask = v >> 63;
+    GET_REG(i->cur_op, 0).i64 = (v + mask) ^ mask;
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_inc_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64++;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_inc_u(INTERP i){
+    GET_REG(i->cur_op, 0).u64++;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_dec_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64--;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_dec_u(INTERP i){
+    GET_REG(i->cur_op, 0).u64--;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_band_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_REG(i->cur_op, 2).i64 & GET_REG(i->cur_op, 4).i64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_bor_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_REG(i->cur_op, 2).i64 | GET_REG(i->cur_op, 4).i64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_bxor_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_REG(i->cur_op, 2).i64 ^ GET_REG(i->cur_op, 4).i64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_bnot_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = ~GET_REG(i->cur_op, 2).i64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_blshift_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_REG(i->cur_op, 2).i64 << GET_REG(i->cur_op, 4).i64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_brshift_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_REG(i->cur_op, 2).i64 >> GET_REG(i->cur_op, 4).i64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_pow_i(INTERP i){
+        MVMint64 base = GET_REG(i->cur_op, 2).i64;
+        MVMint64 exp = GET_REG(i->cur_op, 4).i64;
+        MVMint64 result = 1;
+        /* "Exponentiation by squaring" */
+        if (exp < 0) {
+            result = 0; /* because 1/base**-exp is between 0 and 1 */
+        }
+        else {
+            while (exp) {
+                if (exp & 1)
+        result *= base;
+                exp >>= 1;
+                base *= base;
+            }
+        }
+        GET_REG(i->cur_op, 0).i64 = result;
+    }
+    i->cur_op += 6;
+    goto NEXT(i);
+__code cbc_not_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_REG(i->cur_op, 2).i64 ? 0 : 1;
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_gcd_i(INTERP i){
+    MVMint64 a = labs(GET_REG(i->cur_op, 2).i64), b = labs(GET_REG(i->cur_op, 4).i64), c;
+    while ( b != 0 ) {
+        c = a % b; a = b; b = c;
+    }
+    GET_REG(i->cur_op, 0).i64 = a;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_lcm_i(INTERP i){
+    MVMint64 a = GET_REG(i->cur_op, 2).i64, b = GET_REG(i->cur_op, 4).i64, c, a_ = a, b_ = b;
+    while ( b != 0 ) {
+        c = a % b; a = b; b = c;
+    }
+    c = a;
+    GET_REG(i->cur_op, 0).i64 = a_ / c * b_;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_eq_n(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_REG(i->cur_op, 2).n64 == GET_REG(i->cur_op, 4).n64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_ne_n(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_REG(i->cur_op, 2).n64 != GET_REG(i->cur_op, 4).n64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_lt_n(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_REG(i->cur_op, 2).n64 <  GET_REG(i->cur_op, 4).n64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_le_n(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_REG(i->cur_op, 2).n64 <= GET_REG(i->cur_op, 4).n64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_gt_n(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_REG(i->cur_op, 2).n64 >  GET_REG(i->cur_op, 4).n64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_ge_n(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_REG(i->cur_op, 2).n64 >= GET_REG(i->cur_op, 4).n64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_cmp_n(INTERP i){
+    MVMnum64 a = GET_REG(i->cur_op, 2).n64, b = GET_REG(i->cur_op, 4).n64;
+    GET_REG(i->cur_op, 0).i64 = (a > b) - (a < b);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_add_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = GET_REG(i->cur_op, 2).n64 + GET_REG(i->cur_op, 4).n64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_sub_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = GET_REG(i->cur_op, 2).n64 - GET_REG(i->cur_op, 4).n64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_mul_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = GET_REG(i->cur_op, 2).n64 * GET_REG(i->cur_op, 4).n64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_div_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = GET_REG(i->cur_op, 2).n64 / GET_REG(i->cur_op, 4).n64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_mod_n(INTERP i){
+    MVMnum64 a = GET_REG(i->cur_op, 2).n64;
+    MVMnum64 b = GET_REG(i->cur_op, 4).n64;
+    GET_REG(i->cur_op, 0).n64 = b == 0 ? a : a - b * floor(a / b);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_neg_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = -GET_REG(i->cur_op, 2).n64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_abs_n(INTERP i){
+    {
+        MVMnum64 num = GET_REG(i->cur_op, 2).n64;
+        /* The 1.0/num logic checks for a negative zero */
+        if (num < 0 || (num == 0 && 1.0/num < 0) ) num = num * -1;
+        GET_REG(i->cur_op, 0).n64 = num;
+        i->cur_op += 4;
+    }
+    goto NEXT(i);
+}
+__code cbc_pow_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = pow(GET_REG(i->cur_op, 2).n64, GET_REG(i->cur_op, 4).n64);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_ceil_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = ceil(GET_REG(i->cur_op, 2).n64);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_floor_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = floor(GET_REG(i->cur_op, 2).n64);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_sin_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = sin(GET_REG(i->cur_op, 2).n64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_asin_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = asin(GET_REG(i->cur_op, 2).n64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_cos_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = cos(GET_REG(i->cur_op, 2).n64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_acos_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = acos(GET_REG(i->cur_op, 2).n64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_tan_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = tan(GET_REG(i->cur_op, 2).n64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_atan_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = atan(GET_REG(i->cur_op, 2).n64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_atan2_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = atan2(GET_REG(i->cur_op, 2).n64,
+        GET_REG(i->cur_op, 4).n64);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_sec_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = 1.0 / cos(GET_REG(i->cur_op, 2).n64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_asec_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = acos(1.0 / GET_REG(i->cur_op, 2).n64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_sinh_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = sinh(GET_REG(i->cur_op, 2).n64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_cosh_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = cosh(GET_REG(i->cur_op, 2).n64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_tanh_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = tanh(GET_REG(i->cur_op, 2).n64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_sech_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = 1.0 / cosh(GET_REG(i->cur_op, 2).n64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_sqrt_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = sqrt(GET_REG(i->cur_op, 2).n64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_log_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = log(GET_REG(i->cur_op, 2).n64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_exp_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = exp(GET_REG(i->cur_op, 2).n64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_coerce_in(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = (MVMnum64)GET_REG(i->cur_op, 2).i64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_coerce_ni(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = (MVMint64)GET_REG(i->cur_op, 2).n64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_coerce_is(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_coerce_i_s(i->tc, GET_REG(i->cur_op, 2).i64);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_coerce_ns(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_coerce_n_s(i->tc, GET_REG(i->cur_op, 2).n64);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_coerce_si(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_coerce_s_i(i->tc, GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_coerce_sn(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = MVM_coerce_s_n(i->tc, GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_smrt_numify(INTERP i){
+    /* Increment PC before calling coercer, as it may make
+     * a method call to get the result. */
+    MVMObject   *obj = GET_REG(i->cur_op, 2).o;
+    MVMRegister *res = &GET_REG(i->cur_op, 0);
+    i->cur_op += 4;
+    MVM_coerce_smart_numify(i->tc, obj, res);
+    goto NEXT(i);
+            }
+__code cbc_smrt_strify(INTERP i){
+    /* Increment PC before calling coercer, as it may make
+     * a method call to get the result. */
+    MVMObject   *obj = GET_REG(i->cur_op, 2).o;
+    MVMRegister *res = &GET_REG(i->cur_op, 0);
+    i->cur_op += 4;
+    MVM_coerce_smart_stringify(i->tc, obj, res);
+    goto NEXT(i);
+            }
+__code cbc_prepargs(INTERP i){
+    /* Store callsite in the frame so that the GC knows how to mark
+     * any arguments. Note that since none of the arg-setting ops can
+     * trigger GC, there's no way the setup can be interrupted, so we
+     * don't need to clear the args buffer before we start. */
+    i->cur_callsite = cu->body.callsites[GET_UI16(i->cur_op, 0)];
+    i->tc->cur_frame->cur_args_callsite = i->cur_callsite;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_arg_i(INTERP i){
+    i->tc->cur_frame->args[GET_UI16(i->cur_op, 0)].i64 = GET_REG(i->cur_op, 2).i64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_arg_n(INTERP i){
+    i->tc->cur_frame->args[GET_UI16(i->cur_op, 0)].n64 = GET_REG(i->cur_op, 2).n64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_arg_s(INTERP i){
+    i->tc->cur_frame->args[GET_UI16(i->cur_op, 0)].s = GET_REG(i->cur_op, 2).s;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_arg_o(INTERP i){
+    i->tc->cur_frame->args[GET_UI16(i->cur_op, 0)].o = GET_REG(i->cur_op, 2).o;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_argconst_i(INTERP i){
+    i->tc->cur_frame->args[GET_UI16(i->cur_op, 0)].i64 = MVM_BC_get_I64(i->cur_op, 2);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_argconst_n(INTERP i){
+    i->tc->cur_frame->args[GET_UI16(i->cur_op, 0)].n64 = MVM_BC_get_N64(i->cur_op, 2);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_argconst_s(INTERP i){
+    i->tc->cur_frame->args[GET_UI16(i->cur_op, 0)].s =
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2));
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_invoke_v(INTERP i){
+    {
+        MVMObject   *code = GET_REG(i->cur_op, 0).o;
+        MVMRegister *args = i->tc->cur_frame->args;
+        MVMuint16 was_multi = 0;
+        /* was_multi argument is MVMuint16* */
+        code = MVM_frame_find_invokee_multi_ok(i->tc, code, &i->cur_callsite, args,
+            &was_multi);
+        if (MVM_spesh_log_is_logging(i->tc)) {
+            MVMROOT(i->tc, code, {
+                /* was_multi is MVMint16 */
+                MVM_spesh_log_invoke_target(i->tc, code, was_multi);
+            });
+        }
+        i->tc->cur_frame->return_value = NULL;
+        i->tc->cur_frame->return_type = MVM_RETURN_VOID;
+        i->cur_op += 2;
+        i->tc->cur_frame->return_address = i->cur_op;
+        STABLE(code)->invoke(i->tc, code, i->cur_callsite, args);
+    }
+    goto NEXT(i);
+}
+__code cbc_invoke_i(INTERP i){
+    {
+        MVMObject   *code = GET_REG(i->cur_op, 2).o;
+        MVMRegister *args = i->tc->cur_frame->args;
+        MVMuint16 was_multi = 0;
+        code = MVM_frame_find_invokee_multi_ok(i->tc, code, &i->cur_callsite, args,
+            &was_multi);
+        if (MVM_spesh_log_is_logging(i->tc)) {
+            MVMROOT(i->tc, code, {
+                MVM_spesh_log_invoke_target(i->tc, code, was_multi);
+            });
+        }
+        i->tc->cur_frame->return_value = &GET_REG(i->cur_op, 0);
+        i->tc->cur_frame->return_type = MVM_RETURN_INT;
+        i->cur_op += 4;
+        i->tc->cur_frame->return_address = i->cur_op;
+        STABLE(code)->invoke(i->tc, code, i->cur_callsite, args);
+    }
+    goto NEXT(i);
+}
+__code cbc_invoke_n(INTERP i){
+    {
+        MVMObject   *code = GET_REG(i->cur_op, 2).o;
+        MVMRegister *args = i->tc->cur_frame->args;
+        MVMuint16 was_multi = 0;
+        code = MVM_frame_find_invokee_multi_ok(i->tc, code, &i->cur_callsite, args,
+            &was_multi);
+        if (MVM_spesh_log_is_logging(i->tc)) {
+            MVMROOT(i->tc, code, {
+                MVM_spesh_log_invoke_target(i->tc, code, was_multi);
+            });
+        }
+        i->tc->cur_frame->return_value = &GET_REG(i->cur_op, 0);
+        i->tc->cur_frame->return_type = MVM_RETURN_NUM;
+        i->cur_op += 4;
+        i->tc->cur_frame->return_address = i->cur_op;
+        STABLE(code)->invoke(i->tc, code, i->cur_callsite, args);
+    }
+    goto NEXT(i);
+}
+__code cbc_invoke_s(INTERP i){
+    {
+        MVMObject   *code = GET_REG(i->cur_op, 2).o;
+        MVMRegister *args = i->tc->cur_frame->args;
+        MVMuint16 was_multi = 0;
+        code = MVM_frame_find_invokee_multi_ok(i->tc, code, &i->cur_callsite, args,
+            &was_multi);
+        if (MVM_spesh_log_is_logging(i->tc)) {
+            MVMROOT(i->tc, code, {
+                MVM_spesh_log_invoke_target(i->tc, code, was_multi);
+            });
+        }
+        i->tc->cur_frame->return_value = &GET_REG(i->cur_op, 0);
+        i->tc->cur_frame->return_type = MVM_RETURN_STR;
+        i->cur_op += 4;
+        i->tc->cur_frame->return_address = i->cur_op;
+        STABLE(code)->invoke(i->tc, code, i->cur_callsite, args);
+    }
+    goto NEXT(i);
+}
+__code cbc_invoke_o(INTERP i){
+    {
+        MVMObject   *code = GET_REG(i->cur_op, 2).o;
+        MVMRegister *args = i->tc->cur_frame->args;
+        MVMuint16 was_multi = 0;
+        code = MVM_frame_find_invokee_multi_ok(i->tc, code, &i->cur_callsite, args,
+            &was_multi);
+        if (MVM_spesh_log_is_logging(i->tc)) {
+            MVMROOT(i->tc, code, {
+                MVM_spesh_log_invoke_target(i->tc, code, was_multi);
+            });
+        }
+        i->tc->cur_frame->return_value = &GET_REG(i->cur_op, 0);
+        i->tc->cur_frame->return_type = MVM_RETURN_OBJ;
+        i->cur_op += 4;
+        i->tc->cur_frame->return_address = i->cur_op;
+        STABLE(code)->invoke(i->tc, code, i->cur_callsite, args);
+    }
+    goto NEXT(i);
+}
+__code cbc_checkarity(INTERP i){
+    MVM_args_checkarity(i->tc, &i->tc->cur_frame->params, GET_UI16(i->cur_op, 0), GET_UI16(i->cur_op, 2));
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_param_rp_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_args_get_required_pos_int(i->tc, &i->tc->cur_frame->params,
+        GET_UI16(i->cur_op, 2));
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_param_rp_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = MVM_args_get_pos_num(i->tc, &i->tc->cur_frame->params,
+        GET_UI16(i->cur_op, 2), MVM_ARG_REQUIRED).arg.n64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_param_rp_s(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_args_get_required_pos_str(i->tc, &i->tc->cur_frame->params,
+        GET_UI16(i->cur_op, 2));
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_param_rp_o(INTERP i){
+    MVMuint16 arg_idx = GET_UI16(i->cur_op, 2);
+    MVMObject *param = MVM_args_get_required_pos_obj(i->tc, &i->tc->cur_frame->params, arg_idx);
+    GET_REG(i->cur_op, 0).o = param;
+    if (MVM_spesh_log_is_logging(i->tc))
+        MVM_spesh_log_parameter(i->tc, arg_idx, param);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_param_op_i(INTERP i){
+            {
+    MVMArgInfo param = MVM_args_get_optional_pos_int(i->tc, &i->tc->cur_frame->params,
+        GET_UI16(i->cur_op, 2));
+    if (param.exists) {
+        GET_REG(i->cur_op, 0).i64 = param.arg.i64;
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 4);
+    }
+    else {
+        i->cur_op += 8;
+    }
+    goto NEXT(i);
+            }
+}
+__code cbc_param_op_n(INTERP i){
+            {
+    MVMArgInfo param = MVM_args_get_pos_num(i->tc, &i->tc->cur_frame->params,
+}
+        GET_UI16(i->cur_op, 2), MVM_ARG_OPTIONAL);
+    if (param.exists) {
+        GET_REG(i->cur_op, 0).n64 = param.arg.n64;
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 4);
+    }
+    else {
+        i->cur_op += 8;
+    }
+    goto NEXT(i);
+            }
+__code cbc_param_op_s(INTERP i){
+            {
+    MVMArgInfo param = MVM_args_get_optional_pos_str(i->tc, &i->tc->cur_frame->params,
+        GET_UI16(i->cur_op, 2));
+    if (param.exists) {
+        GET_REG(i->cur_op, 0).s = param.arg.s;
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 4);
+    }
+    else {
+        i->cur_op += 8;
+    }
+    goto NEXT(i);
+            }
+}
+__code cbc_param_op_o(INTERP i){
+            {
+    MVMuint16 arg_idx = GET_UI16(i->cur_op, 2);
+    MVMArgInfo param = MVM_args_get_optional_pos_obj(i->tc, &i->tc->cur_frame->params, arg_idx);
+    if (param.exists) {
+        GET_REG(i->cur_op, 0).o = param.arg.o;
+        if (MVM_spesh_log_is_logging(i->tc))
+            MVM_spesh_log_parameter(i->tc, arg_idx, param.arg.o);
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 4);
+    }
+    else {
+        i->cur_op += 8;
+    }
+    goto NEXT(i);
+            }
+}
+__code cbc_param_rn_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_args_get_named_int(i->tc, &i->tc->cur_frame->params,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_ARG_REQUIRED).arg.i64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_param_rn_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = MVM_args_get_named_num(i->tc, &i->tc->cur_frame->params,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_ARG_REQUIRED).arg.n64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_param_rn_s(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_args_get_named_str(i->tc, &i->tc->cur_frame->params,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_ARG_REQUIRED).arg.s;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_param_rn_o(INTERP i){
+    MVMArgInfo param = MVM_args_get_named_obj(i->tc, &i->tc->cur_frame->params,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_ARG_REQUIRED);
+    GET_REG(i->cur_op, 0).o = param.arg.o;
+    if (MVM_spesh_log_is_logging(i->tc))
+        MVM_spesh_log_parameter(i->tc, param.arg_idx, param.arg.o);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_param_on_i(INTERP i){
+            {
+    MVMArgInfo param = MVM_args_get_named_int(i->tc, &i->tc->cur_frame->params,
+}
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_ARG_OPTIONAL);
+    if (param.exists) {
+        GET_REG(i->cur_op, 0).i64 = param.arg.i64;
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 6);
+    }
+    else {
+        i->cur_op += 10;
+    }
+    goto NEXT(i);
+            }
+__code cbc_param_on_n(INTERP i){
+            {
+    MVMArgInfo param = MVM_args_get_named_num(i->tc, &i->tc->cur_frame->params,
+}
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_ARG_OPTIONAL);
+    if (param.exists) {
+        GET_REG(i->cur_op, 0).n64 = param.arg.n64;
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 6);
+    }
+    else {
+        i->cur_op += 10;
+    }
+    goto NEXT(i);
+            }
+__code cbc_param_on_s(INTERP i){
+            {
+    MVMArgInfo param = MVM_args_get_named_str(i->tc, &i->tc->cur_frame->params,
+}
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_ARG_OPTIONAL);
+    if (param.exists) {
+        GET_REG(i->cur_op, 0).s = param.arg.s;
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 6);
+    }
+    else {
+        i->cur_op += 10;
+    }
+    goto NEXT(i);
+            }
+__code cbc_param_on_o(INTERP i){
+            {
+    MVMArgInfo param = MVM_args_get_named_obj(i->tc, &i->tc->cur_frame->params,
+}
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_ARG_OPTIONAL);
+    if (param.exists) {
+        GET_REG(i->cur_op, 0).o = param.arg.o;
+        if (MVM_spesh_log_is_logging(i->tc))
+            MVM_spesh_log_parameter(i->tc, param.arg_idx, param.arg.o);
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 6);
+    }
+    else {
+        i->cur_op += 10;
+    }
+    goto NEXT(i);
+            }
+__code cbc_param_sp(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_args_slurpy_positional(i->tc, &i->tc->cur_frame->params, GET_UI16(i->cur_op, 2));
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_param_sn(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_args_slurpy_named(i->tc, &i->tc->cur_frame->params);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_getcode(INTERP i){
+    GET_REG(i->cur_op, 0).o = cu->body.coderefs[GET_UI16(i->cur_op, 2)];
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_caller(INTERP i){
+    MVMFrame *caller = i->tc->cur_frame;
+    MVMint64 depth = GET_REG(i->cur_op, 2).i64;
+
+    while (caller && depth-- > 0) /* keep the > 0. */
+        caller = caller->caller;
+
+    GET_REG(i->cur_op, 0).o = caller ? caller->code_ref : i->tc->instance->VMNull;
+
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_capturelex(INTERP i){
+    MVM_frame_capturelex(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_takeclosure(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_frame_takeclosure(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_exception(INTERP i){
+    GET_REG(i->cur_op, 0).o = i->tc->active_handlers
+        ? i->tc->active_handlers->ex_obj
+        : i->tc->instance->VMNull;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_bindexmessage(INTERP i){
+    MVMObject *ex = GET_REG(i->cur_op, 0).o;
+    if (IS_CONCRETE(ex) && REPR(ex)->ID == MVM_REPR_ID_MVMException) {
+        MVM_ASSIGN_REF(i->tc, &(ex->header), ((MVMException *)ex)->body.message,
+            GET_REG(i->cur_op, 2).s);
+    }
+    else {
+        MVM_exception_throw_adhoc(i->tc, "bindexmessage needs a VMException, got %s (%s)", REPR(ex)->name, MVM_6model_get_debug_name(i->tc, ex));
+    }
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_bindexpayload(INTERP i){
+    MVMObject *ex = GET_REG(i->cur_op, 0).o;
+    MVM_bind_exception_payload(i->tc, ex, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_bindexcategory(INTERP i){
+    MVMObject *ex = GET_REG(i->cur_op, 0).o;
+    MVM_bind_exception_category(i->tc, ex, GET_REG(i->cur_op, 2).i64);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_getexmessage(INTERP i){
+    MVMObject *ex = GET_REG(i->cur_op, 2).o;
+    if (IS_CONCRETE(ex) && REPR(ex)->ID == MVM_REPR_ID_MVMException)
+        GET_REG(i->cur_op, 0).s = ((MVMException *)ex)->body.message;
+    else
+        MVM_exception_throw_adhoc(i->tc, "getexmessage needs a VMException, got %s (%s)", REPR(ex)->name, MVM_6model_get_debug_name(i->tc, ex));
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_getexpayload(INTERP i){
+    MVMObject *ex = GET_REG(i->cur_op, 2).o;
+    GET_REG(i->cur_op, 0).o = MVM_get_exception_payload(i->tc, ex);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_getexcategory(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_get_exception_category(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_throwdyn(INTERP i){
+    MVMRegister *rr     = &GET_REG(i->cur_op, 0);
+    MVMObject   *ex_obj = GET_REG(i->cur_op, 2).o;
+    i->cur_op += 4;
+    MVM_exception_throwobj(i->tc, MVM_EX_THROW_DYN, ex_obj, rr);
+    goto NEXT(i);
+            }
+__code cbc_throwlex(INTERP i){
+    MVMRegister *rr     = &GET_REG(i->cur_op, 0);
+    MVMObject   *ex_obj = GET_REG(i->cur_op, 2).o;
+    i->cur_op += 4;
+    MVM_exception_throwobj(i->tc, MVM_EX_THROW_LEX, ex_obj, rr);
+    goto NEXT(i);
+            }
+__code cbc_throwlexotic(INTERP i){
+    MVMRegister *rr     = &GET_REG(i->cur_op, 0);
+    MVMObject   *ex_obj = GET_REG(i->cur_op, 2).o;
+    i->cur_op += 4;
+    MVM_exception_throwobj(i->tc, MVM_EX_THROW_LEXOTIC, ex_obj, rr);
+    goto NEXT(i);
+            }
+__code cbc_throwcatdyn(INTERP i){
+    MVMRegister *rr  = &GET_REG(i->cur_op, 0);
+    MVMuint32    cat = (MVMuint32)MVM_BC_get_I64(i->cur_op, 2);
+    i->cur_op += 4;
+    MVM_exception_throwcat(i->tc, MVM_EX_THROW_DYN, cat, rr);
+    goto NEXT(i);
+            }
+__code cbc_throwcatlex(INTERP i){
+    MVMRegister *rr  = &GET_REG(i->cur_op, 0);
+    MVMuint32    cat = (MVMuint32)MVM_BC_get_I64(i->cur_op, 2);
+    i->cur_op += 4;
+    MVM_exception_throwcat(i->tc, MVM_EX_THROW_LEX, cat, rr);
+    goto NEXT(i);
+            }
+__code cbc_throwcatlexotic(INTERP i){
+    MVMRegister *rr  = &GET_REG(i->cur_op, 0);
+    MVMuint32    cat = (MVMuint32)MVM_BC_get_I64(i->cur_op, 2);
+    i->cur_op += 4;
+    MVM_exception_throwcat(i->tc, MVM_EX_THROW_LEXOTIC, cat, rr);
+    goto NEXT(i);
+            }
+__code cbc_die(INTERP i){
+    MVMRegister  *rr = &GET_REG(i->cur_op, 0);
+    MVMString   *str =  GET_REG(i->cur_op, 2).s;
+    i->cur_op += 4;
+    MVM_exception_die(i->tc, str, rr);
+    goto NEXT(i);
+            }
+__code cbc_rethrow(INTERP i){
+    MVM_exception_throwobj(i->tc, MVM_EX_THROW_DYN, GET_REG(i->cur_op, 0).o, NULL);
+    goto NEXT(i);
+            }
+__code cbc_resume(INTERP i){
+    /* Expect that resume will set the PC, so don't update i->cur_op
+     * here. */
+    MVM_exception_resume(i->tc, GET_REG(i->cur_op, 0).o);
+    goto NEXT(i);
+}
+__code cbc_takehandlerresult(INTERP i){
+    GET_REG(i->cur_op, 0).o = i->tc->last_handler_result
+        ? i->tc->last_handler_result
+        : i->tc->instance->VMNull;
+    i->tc->last_handler_result = NULL;
+    i->cur_op += 2;
+    goto NEXT(i);
+            }
+__code cbc_backtracestrings(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_exception_backtrace_strings(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_usecapture(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_args_use_capture(i->tc, i->tc->cur_frame);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_savecapture(INTERP i){
+    /* Create a new call capture object. */
+    GET_REG(i->cur_op, 0).o = MVM_args_save_capture(i->tc, i->tc->cur_frame);
+    i->cur_op += 2;
+    goto NEXT(i);
+            }
+__code cbc_captureposelems(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    if (IS_CONCRETE(obj) && REPR(obj)->ID == MVM_REPR_ID_MVMCallCapture) {
+        MVMCallCapture *cc = (MVMCallCapture *)obj;
+        GET_REG(i->cur_op, 0).i64 = cc->body.apc->num_pos;
+    }
+    else {
+        MVM_exception_throw_adhoc(i->tc, "captureposelems needs a MVMCallCapture");
+    }
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_captureposarg(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    if (IS_CONCRETE(obj) && REPR(obj)->ID == MVM_REPR_ID_MVMCallCapture) {
+        MVMCallCapture *cc = (MVMCallCapture *)obj;
+        GET_REG(i->cur_op, 0).o = MVM_args_get_required_pos_obj(i->tc, cc->body.apc,
+            (MVMuint32)GET_REG(i->cur_op, 4).i64);
+    }
+    else {
+        MVM_exception_throw_adhoc(i->tc, "captureposarg needs a MVMCallCapture");
+    }
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_captureposarg_i(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    if (IS_CONCRETE(obj) && REPR(obj)->ID == MVM_REPR_ID_MVMCallCapture) {
+        MVMCallCapture *cc = (MVMCallCapture *)obj;
+        GET_REG(i->cur_op, 0).i64 = MVM_args_get_required_pos_int(i->tc, cc->body.apc,
+            (MVMuint32)GET_REG(i->cur_op, 4).i64);
+    }
+    else {
+        MVM_exception_throw_adhoc(i->tc, "captureposarg_i needs a MVMCallCapture");
+    }
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_captureposarg_n(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    if (IS_CONCRETE(obj) && REPR(obj)->ID == MVM_REPR_ID_MVMCallCapture) {
+        MVMCallCapture *cc = (MVMCallCapture *)obj;
+        GET_REG(i->cur_op, 0).n64 = MVM_args_get_pos_num(i->tc, cc->body.apc,
+            (MVMuint32)GET_REG(i->cur_op, 4).i64, MVM_ARG_REQUIRED).arg.n64;
+    }
+    else {
+        MVM_exception_throw_adhoc(i->tc, "captureposarg_n needs a MVMCallCapture");
+    }
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_captureposarg_s(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    if (IS_CONCRETE(obj) && REPR(obj)->ID == MVM_REPR_ID_MVMCallCapture) {
+        MVMCallCapture *cc = (MVMCallCapture *)obj;
+        GET_REG(i->cur_op, 0).s = MVM_args_get_required_pos_str(i->tc, cc->body.apc,
+            (MVMuint32)GET_REG(i->cur_op, 4).i64);
+    }
+    else {
+        MVM_exception_throw_adhoc(i->tc, "captureposarg_s needs a MVMCallCapture");
+    }
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_captureposprimspec(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    MVMint64   i   = GET_REG(i->cur_op, 4).i64;
+    if (IS_CONCRETE(obj) && REPR(obj)->ID == MVM_REPR_ID_MVMCallCapture) {
+        MVMCallCapture *cc = (MVMCallCapture *)obj;
+        if (i >= 0 && i < cc->body.apc->num_pos) {
+            MVMCallsiteEntry *arg_flags = cc->body.apc->arg_flags
+                ? cc->body.apc->arg_flags
+                : cc->body.apc->callsite->arg_flags;
+            swii->tch (arg_flags[i] & MVM_CALLSITE_ARG_MASK) {
+                case MVM_CALLSITE_ARG_INT:
+        GET_REG(i->cur_op, 0).i64 = MVM_STORAGE_SPEC_BP_INT;
+        break;
+                case MVM_CALLSITE_ARG_NUM:
+        GET_REG(i->cur_op, 0).i64 = MVM_STORAGE_SPEC_BP_NUM;
+        break;
+                case MVM_CALLSITE_ARG_STR:
+        GET_REG(i->cur_op, 0).i64 = MVM_STORAGE_SPEC_BP_STR;
+        break;
+                default:
+        GET_REG(i->cur_op, 0).i64 = MVM_STORAGE_SPEC_BP_NONE;
+        break;
+            }
+        }
+        else {
+            MVM_exception_throw_adhoc(i->tc,
+                "Bad argument index given to captureposprimspec");
+        }
+    }
+    else {
+        MVM_exception_throw_adhoc(i->tc, "captureposprimspec needs a MVMCallCapture");
+    }
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_captureexistsnamed(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    if (IS_CONCRETE(obj) && REPR(obj)->ID == MVM_REPR_ID_MVMCallCapture) {
+        MVMCallCapture *cc = (MVMCallCapture *)obj;
+        GET_REG(i->cur_op, 0).i64 = MVM_args_has_named(i->tc, cc->body.apc,
+            GET_REG(i->cur_op, 4).s);
+    }
+    else {
+        MVM_exception_throw_adhoc(i->tc, "captureexistsnamed needs a MVMCallCapture");
+    }
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_capturehasnameds(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    if (IS_CONCRETE(obj) && REPR(obj)->ID == MVM_REPR_ID_MVMCallCapture) {
+        /* If positionals count doesn't mai->tch arg count, we must
+         * have some named args. */
+        MVMCallCapture *cc = (MVMCallCapture *)obj;
+        GET_REG(i->cur_op, 0).i64 = cc->body.apc->arg_count != cc->body.apc->num_pos;
+    }
+    else {
+        MVM_exception_throw_adhoc(i->tc, "capturehasnameds needs a MVMCallCapture");
+    }
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_invokewithcapture(INTERP i){
+    MVMObject *cobj = GET_REG(i->cur_op, 4).o;
+    if (IS_CONCRETE(cobj) && REPR(cobj)->ID == MVM_REPR_ID_MVMCallCapture) {
+        MVMObject *code = GET_REG(i->cur_op, 2).o;
+        MVMCallCapture *cc = (MVMCallCapture *)cobj;
+        MVMFrameExtra *e = MVM_frame_extra(i->tc, i->tc->cur_frame);
+        code = MVM_frame_find_invokee(i->tc, code, NULL);
+        i->tc->cur_frame->return_value = &GET_REG(i->cur_op, 0);
+        i->tc->cur_frame->return_type = MVM_RETURN_OBJ;
+        i->cur_op += 6;
+        i->tc->cur_frame->return_address = i->cur_op;
+        MVMROOT(i->tc, cobj, {
+            STABLE(code)->invoke(i->tc, code, cc->body.apc->callsite,
+                cc->body.apc->args);
+        });
+        if (MVM_FRAME_IS_ON_CALLSTACK(i->tc, i->tc->cur_frame)) {
+            e->invoked_call_capture = cobj;
+        }
+        else {
+            MVM_ASSIGN_REF(i->tc, &(i->tc->cur_frame->header),
+                e->invoked_call_capture, cobj);
+        }
+        goto NEXT(i);
+    }
+    else {
+        MVM_exception_throw_adhoc(i->tc, "invokewithcapture needs a MVMCallCapture");
+    }
+            }
+__code cbc_multicacheadd(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_multi_cache_add(i->tc, GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).o, GET_REG(i->cur_op, 6).o);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_multicachefind(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_multi_cache_find(i->tc, GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_null_s(INTERP i){
+    GET_REG(i->cur_op, 0).s = NULL;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_isnull_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_REG(i->cur_op, 2).s ? 0 : 1;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_eq_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_equal(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).s);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_ne_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = (MVMint64)(MVM_string_equal(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).s)? 0 : 1);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_gt_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_compare(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).s) == 1;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_ge_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_compare(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).s) >= 0;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_lt_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_compare(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).s) == -1;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_le_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_compare(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).s) <= 0;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_cmp_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_compare(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).s);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_unicmp_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_unicode_string_compare(i->tc,
+        GET_REG(i->cur_op,  2).s,   GET_REG(i->cur_op, 4).s,
+        GET_REG(i->cur_op,  6).i64, GET_REG(i->cur_op, 8).i64,
+        GET_REG(i->cur_op, 10).i64);
+    i->cur_op += 12;
+    goto NEXT(i);
+}
+__code cbc_eqat_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_equal_at(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).s,
+        GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_eqatic_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_equal_at_ignore_case(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).s,
+        GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_eqaticim_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_equal_at_ignore_case_ignore_mark(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).s,
+        GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_haveat_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_have_at(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).i64,
+        GET_REG(i->cur_op, 6).i64, GET_REG(i->cur_op, 8).s,
+        GET_REG(i->cur_op, 10).i64);
+    i->cur_op += 12;
+    goto NEXT(i);
+}
+__code cbc_concat_s(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_string_concatenate(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).s);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_repeat_s(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_string_repeat(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_substr_s(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_string_substring(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).i64,
+        GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_index_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_index(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).s, GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_indexic_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_index_ignore_case(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).s, GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_indexicim_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_index_ignore_case_ignore_mark(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).s, GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_graphs_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_graphs(i->tc, GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_codes_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_codes(i->tc, GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_getcp_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_get_grapheme_at(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_indexcp_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_index_of_grapheme(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_uc(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_string_uc(i->tc,
+        GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_lc(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_string_lc(i->tc,
+        GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_tc(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_string_i->tc(i->tc,
+        GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_split(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_string_split(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).s);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_join(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_string_join(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_getcpbyname(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_unicode_lookup_by_name(i->tc,
+        GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_getstrfromname(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_unicode_string_from_name(i->tc,
+        GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_indexat(INTERP i){
+    /* branches on *failure* to mai->tch in the constant string, to save an instruction in regexes */
+    if (MVM_string_char_at_in_string(i->tc, GET_REG(i->cur_op, 0).s,
+            GET_REG(i->cur_op, 2).i64,
+            MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 4))) >= 0)
+        i->cur_op += 12;
+    else
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 8);
+    GC_SYNC_POINT(i->tc);
+    goto NEXT(i);
+}
+__code cbc_indexnat(INTERP i){
+    /* branches on *failure* to mai->tch in the constant string, to save an instruction in regexes */
+    if (MVM_string_char_at_in_string(i->tc, GET_REG(i->cur_op, 0).s,
+            GET_REG(i->cur_op, 2).i64,
+            MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 4))) == -1)
+        i->cur_op += 12;
+    else
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 8);
+    GC_SYNC_POINT(i->tc);
+    goto NEXT(i);
+}
+__code cbc_unipropcode(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = (MVMint64)MVM_unicode_name_to_property_code(i->tc,
+        GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_unipvalcode(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = (MVMint64)MVM_unicode_name_to_property_value_code(i->tc,
+        GET_REG(i->cur_op, 2).i64, GET_REG(i->cur_op, 4).s);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_hasuniprop(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_offset_has_unicode_property_value(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).i64, GET_REG(i->cur_op, 6).i64,
+        GET_REG(i->cur_op, 8).i64);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_hasunipropc(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_offset_has_unicode_property_value(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).i64, (MVMint64)GET_UI16(i->cur_op, 6),
+        (MVMint64)GET_UI16(i->cur_op, 8));
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_chars(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_graphs(i->tc, GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_chr(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_string_chr(i->tc, (MVMCodepoint)GET_REG(i->cur_op, 2).i64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_ordfirst(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_ord_at(i->tc, GET_REG(i->cur_op, 2).s, 0);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_ordat(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_ord_at(i->tc, GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_rindexfrom(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_index_from_end(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).s, GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_escape(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_string_escape(i->tc,
+        GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_flip(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_string_flip(i->tc,
+        GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_setbuffersize_fh(INTERP i){
+    MVM_io_set_buffer_size(i->tc, GET_REG(i->cur_op, 0).o, GET_REG(i->cur_op, 2).i64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_iscclass(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_is_cclass(i->tc,
+        GET_REG(i->cur_op, 2).i64, GET_REG(i->cur_op, 4).s,
+        GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_findcclass(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_find_cclass(i->tc,
+        GET_REG(i->cur_op, 2).i64, GET_REG(i->cur_op, 4).s,
+        GET_REG(i->cur_op, 6).i64, GET_REG(i->cur_op, 8).i64);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_findnotcclass(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_find_not_cclass(i->tc,
+        GET_REG(i->cur_op, 2).i64, GET_REG(i->cur_op, 4).s,
+        GET_REG(i->cur_op, 6).i64, GET_REG(i->cur_op, 8).i64);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_nfafromstatelist(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nfa_from_statelist(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_nfarunproto(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nfa_run_proto(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).s,
+        GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_nfarunalt(INTERP i){
+    MVM_nfa_run_alt(i->tc, GET_REG(i->cur_op, 0).o,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).i64,
+        GET_REG(i->cur_op, 6).o, GET_REG(i->cur_op, 8).o,
+        GET_REG(i->cur_op, 10).o);
+    i->cur_op += 12;
+    goto NEXT(i);
+}
+__code cbc_radix(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_radix(i->tc,
+        GET_REG(i->cur_op, 2).i64, GET_REG(i->cur_op, 4).s,
+        GET_REG(i->cur_op, 6).i64, GET_REG(i->cur_op, 8).i64);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_encode(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_string_encode_to_buf(i->tc, GET_REG(i->cur_op, 2).s,
+        GET_REG(i->cur_op, 4).s, GET_REG(i->cur_op, 6).o, NULL);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_decode(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_string_decode_from_buf(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).s);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_istrue_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_coerce_istrue_s(i->tc, GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_isfalse_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_coerce_istrue_s(i->tc, GET_REG(i->cur_op, 2).s) ? 0 : 1;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_null(INTERP i){
+    GET_REG(i->cur_op, 0).o = i->tc->instance->VMNull;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_isnull(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    GET_REG(i->cur_op, 0).i64 = MVM_is_null(i->tc, obj);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_ifnonnull(INTERP i){
+    if (MVM_is_null(i->tc, GET_REG(i->cur_op, 0).o))
+        i->cur_op += 6;
+    else
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 2);
+    GC_SYNC_POINT(i->tc);
+    goto NEXT(i);
+}
+__code cbc_findmeth(INTERP i){
+    /* Increment PC first, as we may make a method call. */
+    MVMRegister *res  = &GET_REG(i->cur_op, 0);
+    MVMObject   *obj  = GET_REG(i->cur_op, 2).o;
+    MVMString   *name = MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 4));
+    i->cur_op += 8;
+    MVM_6model_find_method(i->tc, obj, name, res, 1);
+    goto NEXT(i);
+            }
+__code cbc_findmeth_s(INTERP i){
+    /* Increment PC first, as we may make a method call. */
+    MVMRegister *res  = &GET_REG(i->cur_op, 0);
+    MVMObject   *obj  = GET_REG(i->cur_op, 2).o;
+    MVMString   *name = GET_REG(i->cur_op, 4).s;
+    i->cur_op += 6;
+    MVM_6model_find_method(i->tc, obj, name, res, 1);
+    goto NEXT(i);
+            }
+__code cbc_can(INTERP i){
+    /* Increment PC first, as we may make a method call. */
+    MVMRegister *res  = &GET_REG(i->cur_op, 0);
+    MVMObject   *obj  = GET_REG(i->cur_op, 2).o;
+    MVMString   *name = MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 4));
+    i->cur_op += 8;
+    MVM_6model_can_method(i->tc, obj, name, res);
+    goto NEXT(i);
+            }
+__code cbc_can_s(INTERP i){
+    /* Increment PC first, as we may make a method call. */
+    MVMRegister *res  = &GET_REG(i->cur_op, 0);
+    MVMObject   *obj  = GET_REG(i->cur_op, 2).o;
+    MVMString   *name = GET_REG(i->cur_op, 4).s;
+    i->cur_op += 6;
+    MVM_6model_can_method(i->tc, obj, name, res);
+    goto NEXT(i);
+            }
+__code cbc_create(INTERP i){
+    /* Ordering here matters. We write the object into the
+     * register before calling initialize. This is because
+     * if initialize allocates, obj may have moved after
+     * we called it. Note that type is never used after
+     * the initial allocate call also. This saves us having
+     * to put things on the temporary stack. The GC will
+     * know to update it in the register if it moved. */
+    MVMObject *type = GET_REG(i->cur_op, 2).o;
+    MVMObject *obj  = REPR(type)->allocate(i->tc, STABLE(type));
+    GET_REG(i->cur_op, 0).o = obj;
+    if (REPR(obj)->initialize)
+        REPR(obj)->initialize(i->tc, STABLE(obj), obj, OBJECT_BODY(obj));
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_clone(INTERP i){
+    MVMObject *value = GET_REG(i->cur_op, 2).o;
+    if (IS_CONCRETE(value)) {
+        MVMROOT(i->tc, value, {
+            MVMObject *cloned = REPR(value)->allocate(i->tc, STABLE(value));
+            /* Ordering here matters. We write the object into the
+            * register before calling copy_to. This is because
+            * if copy_to allocates, obj may have moved after
+            * we called it. This saves us having to put things on
+            * the temporary stack. The GC will know to update it
+            * in the register if it moved. */
+            GET_REG(i->cur_op, 0).o = cloned;
+            REPR(value)->copy_to(i->tc, STABLE(value), OBJECT_BODY(value), cloned, OBJECT_BODY(cloned));
+        });
+    }
+    else {
+        GET_REG(i->cur_op, 0).o = value;
+    }
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_isconcrete(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    GET_REG(i->cur_op, 0).i64 = obj && IS_CONCRETE(obj) ? 1 : 0;
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_rebless(INTERP i){
+    if (!REPR(GET_REG(i->cur_op, 2).o)->change_type) {
+        MVM_exception_throw_adhoc(i->tc, "This REPR cannot change type");
+    }
+    REPR(GET_REG(i->cur_op, 2).o)->change_type(i->tc, GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o);
+    GET_REG(i->cur_op, 0).o = GET_REG(i->cur_op, 2).o;
+    MVM_SC_WB_OBJ(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 6;
+    MVM_spesh_deopt_all(i->tc);
+    goto NEXT(i);
+}
+__code cbc_istype(INTERP i){
+    /* Increment PC first, as we may make a method call. */
+    MVMRegister *res  = &GET_REG(i->cur_op, 0);
+    MVMObject   *obj  = GET_REG(i->cur_op, 2).o;
+    MVMObject   *type = GET_REG(i->cur_op, 4).o;
+    i->cur_op += 6;
+    MVM_6model_istype(i->tc, obj, type, res);
+    goto NEXT(i);
+            }
+__code cbc_objprimspec(INTERP i){
+    MVMObject *type = GET_REG(i->cur_op, 2).o;
+    if (type) {
+        const MVMStorageSpec *ss = REPR(type)->get_storage_spec(i->tc, STABLE(type));
+        GET_REG(i->cur_op, 0).i64 = ss->boxed_primitive;
+    }
+    else {
+        GET_REG(i->cur_op, 0).i64 = 0;
+    }
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_gethow(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_6model_get_how(i->tc,
+        STABLE(GET_REG(i->cur_op, 2).o));
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_getwhat(INTERP i){
+    GET_REG(i->cur_op, 0).o = STABLE(GET_REG(i->cur_op, 2).o)->WHAT;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_getwho(INTERP i){
+    MVMObject *who = STABLE(GET_REG(i->cur_op, 2).o)->WHO;
+    GET_REG(i->cur_op, 0).o = who ? who : i->tc->instance->VMNull;
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_setwho(INTERP i){
+    MVMSTable *st = STABLE(GET_REG(i->cur_op, 2).o);
+    MVM_ASSIGN_REF(i->tc, &(st->header), st->WHO, GET_REG(i->cur_op, 4).o);
+    GET_REG(i->cur_op, 0).o = GET_REG(i->cur_op, 2).o;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_reprname(INTERP i){
+    const MVMREPROps *repr = REPR(GET_REG(i->cur_op, 2).o);
+    GET_REG(i->cur_op, 0).s = i->tc->instance->repr_list[repr->ID]->name;
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_getwhere(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = (MVMint64)GET_REG(i->cur_op, 2).o;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_eqaddr(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_REG(i->cur_op, 2).o == GET_REG(i->cur_op, 4).o ? 1 : 0;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_bindattr_i(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    if (!IS_CONCRETE(obj))
+        MVM_exception_throw_adhoc(i->tc, "Cannot bind attributes in a %s type object", MVM_6model_get_debug_name(i->tc, obj));
+    REPR(obj)->attr_funcs.bind_attribute(i->tc,
+        STABLE(obj), obj, OBJECT_BODY(obj),
+        GET_REG(i->cur_op, 2).o, MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 4)),
+        GET_I16(i->cur_op, 10), GET_REG(i->cur_op, 8), MVM_reg_int64);
+    MVM_SC_WB_OBJ(i->tc, obj);
+    i->cur_op += 12;
+    goto NEXT(i);
+            }
+__code cbc_bindattr_n(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    if (!IS_CONCRETE(obj))
+        MVM_exception_throw_adhoc(i->tc, "Cannot bind attributes in a %s type object", MVM_6model_get_debug_name(i->tc, obj));
+    REPR(obj)->attr_funcs.bind_attribute(i->tc,
+        STABLE(obj), obj, OBJECT_BODY(obj),
+        GET_REG(i->cur_op, 2).o, MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 4)),
+        GET_I16(i->cur_op, 10), GET_REG(i->cur_op, 8), MVM_reg_num64);
+    MVM_SC_WB_OBJ(i->tc, obj);
+    i->cur_op += 12;
+    goto NEXT(i);
+            }
+__code cbc_bindattr_s(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    if (!IS_CONCRETE(obj))
+        MVM_exception_throw_adhoc(i->tc, "Cannot bind attributes in a %s type object", MVM_6model_get_debug_name(i->tc, obj));
+    REPR(obj)->attr_funcs.bind_attribute(i->tc,
+        STABLE(obj), obj, OBJECT_BODY(obj),
+        GET_REG(i->cur_op, 2).o, MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 4)),
+        GET_I16(i->cur_op, 10), GET_REG(i->cur_op, 8), MVM_reg_str);
+    MVM_SC_WB_OBJ(i->tc, obj);
+    i->cur_op += 12;
+    goto NEXT(i);
+            }
+__code cbc_bindattr_o(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    if (!IS_CONCRETE(obj))
+        MVM_exception_throw_adhoc(i->tc, "Cannot bind attributes in a %s type object", MVM_6model_get_debug_name(i->tc, obj));
+    REPR(obj)->attr_funcs.bind_attribute(i->tc,
+        STABLE(obj), obj, OBJECT_BODY(obj),
+        GET_REG(i->cur_op, 2).o, MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 4)),
+        GET_I16(i->cur_op, 10), GET_REG(i->cur_op, 8), MVM_reg_obj);
+    MVM_SC_WB_OBJ(i->tc, obj);
+    i->cur_op += 12;
+    goto NEXT(i);
+            }
+__code cbc_bindattrs_i(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    if (!IS_CONCRETE(obj))
+        MVM_exception_throw_adhoc(i->tc, "Cannot bind attributes in a %s type object", MVM_6model_get_debug_name(i->tc, obj));
+    REPR(obj)->attr_funcs.bind_attribute(i->tc,
+        STABLE(obj), obj, OBJECT_BODY(obj),
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).s,
+        -1, GET_REG(i->cur_op, 6), MVM_reg_int64);
+    MVM_SC_WB_OBJ(i->tc, obj);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_bindattrs_n(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    if (!IS_CONCRETE(obj))
+        MVM_exception_throw_adhoc(i->tc, "Cannot bind attributes in a %s type object", MVM_6model_get_debug_name(i->tc, obj));
+    REPR(obj)->attr_funcs.bind_attribute(i->tc,
+        STABLE(obj), obj, OBJECT_BODY(obj),
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).s,
+        -1, GET_REG(i->cur_op, 6), MVM_reg_num64);
+    MVM_SC_WB_OBJ(i->tc, obj);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_bindattrs_s(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    if (!IS_CONCRETE(obj))
+        MVM_exception_throw_adhoc(i->tc, "Cannot bind attributes in a %s type object", MVM_6model_get_debug_name(i->tc, obj));
+    REPR(obj)->attr_funcs.bind_attribute(i->tc,
+        STABLE(obj), obj, OBJECT_BODY(obj),
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).s,
+        -1, GET_REG(i->cur_op, 6), MVM_reg_str);
+    MVM_SC_WB_OBJ(i->tc, obj);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_bindattrs_o(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    if (!IS_CONCRETE(obj))
+        MVM_exception_throw_adhoc(i->tc, "Cannot bind attributes in a %s type object", MVM_6model_get_debug_name(i->tc, obj));
+    REPR(obj)->attr_funcs.bind_attribute(i->tc,
+        STABLE(obj), obj, OBJECT_BODY(obj),
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).s,
+        -1, GET_REG(i->cur_op, 6), MVM_reg_obj);
+    MVM_SC_WB_OBJ(i->tc, obj);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_getattr_i(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    if (!IS_CONCRETE(obj))
+        MVM_exception_throw_adhoc(i->tc, "Cannot look up attributes in a %s type object", MVM_6model_get_debug_name(i->tc, obj));
+    REPR(obj)->attr_funcs.get_attribute(i->tc,
+        STABLE(obj), obj, OBJECT_BODY(obj),
+        GET_REG(i->cur_op, 4).o, MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 6)),
+        GET_I16(i->cur_op, 10), &GET_REG(i->cur_op, 0), MVM_reg_int64);
+    i->cur_op += 12;
+    goto NEXT(i);
+            }
+__code cbc_getattr_n(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    if (!IS_CONCRETE(obj))
+        MVM_exception_throw_adhoc(i->tc, "Cannot look up attributes in a %s type object", MVM_6model_get_debug_name(i->tc, obj));
+    REPR(obj)->attr_funcs.get_attribute(i->tc,
+        STABLE(obj), obj, OBJECT_BODY(obj),
+        GET_REG(i->cur_op, 4).o, MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 6)),
+        GET_I16(i->cur_op, 10), &GET_REG(i->cur_op, 0), MVM_reg_num64);
+    i->cur_op += 12;
+    goto NEXT(i);
+            }
+__code cbc_getattr_s(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    if (!IS_CONCRETE(obj))
+        MVM_exception_throw_adhoc(i->tc, "Cannot look up attributes in a %s type object", MVM_6model_get_debug_name(i->tc, obj));
+    REPR(obj)->attr_funcs.get_attribute(i->tc,
+        STABLE(obj), obj, OBJECT_BODY(obj),
+        GET_REG(i->cur_op, 4).o, MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 6)),
+        GET_I16(i->cur_op, 10), &GET_REG(i->cur_op, 0), MVM_reg_str);
+    i->cur_op += 12;
+    goto NEXT(i);
+            }
+__code cbc_getattr_o(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    if (!IS_CONCRETE(obj))
+        MVM_exception_throw_adhoc(i->tc, "Cannot look up attributes in a %s type object", MVM_6model_get_debug_name(i->tc, obj));
+    REPR(obj)->attr_funcs.get_attribute(i->tc,
+        STABLE(obj), obj, OBJECT_BODY(obj),
+        GET_REG(i->cur_op, 4).o, MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 6)),
+        GET_I16(i->cur_op, 10), &GET_REG(i->cur_op, 0), MVM_reg_obj);
+    if (MVM_spesh_log_is_logging(i->tc))
+        MVM_spesh_log_type(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 12;
+    goto NEXT(i);
+            }
+__code cbc_getattrs_i(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    if (!IS_CONCRETE(obj))
+        MVM_exception_throw_adhoc(i->tc, "Cannot look up attributes in a %s type object", MVM_6model_get_debug_name(i->tc, obj));
+    REPR(obj)->attr_funcs.get_attribute(i->tc,
+        STABLE(obj), obj, OBJECT_BODY(obj),
+        GET_REG(i->cur_op, 4).o, GET_REG(i->cur_op, 6).s,
+        -1, &GET_REG(i->cur_op, 0), MVM_reg_int64);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_getattrs_n(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    if (!IS_CONCRETE(obj))
+        MVM_exception_throw_adhoc(i->tc, "Cannot look up attributes in a %s type object", MVM_6model_get_debug_name(i->tc, obj));
+    REPR(obj)->attr_funcs.get_attribute(i->tc,
+        STABLE(obj), obj, OBJECT_BODY(obj),
+        GET_REG(i->cur_op, 4).o, GET_REG(i->cur_op, 6).s,
+        -1, &GET_REG(i->cur_op, 0), MVM_reg_num64);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_getattrs_s(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    if (!IS_CONCRETE(obj))
+        MVM_exception_throw_adhoc(i->tc, "Cannot look up attributes in a %s type object", MVM_6model_get_debug_name(i->tc, obj));
+    REPR(obj)->attr_funcs.get_attribute(i->tc,
+        STABLE(obj), obj, OBJECT_BODY(obj),
+        GET_REG(i->cur_op, 4).o, GET_REG(i->cur_op, 6).s,
+        -1, &GET_REG(i->cur_op, 0), MVM_reg_str);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_getattrs_o(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    if (!IS_CONCRETE(obj))
+        MVM_exception_throw_adhoc(i->tc, "Cannot look up attributes in a %s type object", MVM_6model_get_debug_name(i->tc, obj));
+    REPR(obj)->attr_funcs.get_attribute(i->tc,
+        STABLE(obj), obj, OBJECT_BODY(obj),
+        GET_REG(i->cur_op, 4).o, GET_REG(i->cur_op, 6).s,
+        -1, &GET_REG(i->cur_op, 0), MVM_reg_obj);
+    if (MVM_spesh_log_is_logging(i->tc))
+        MVM_spesh_log_type(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_attrinited(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    if (!IS_CONCRETE(obj))
+        MVM_exception_throw_adhoc(i->tc, "Cannot look up attributes in a %s type object", MVM_6model_get_debug_name(i->tc, obj));
+    GET_REG(i->cur_op, 0).i64 = REPR(obj)->attr_funcs.is_attribute_initialized(i->tc,
+        STABLE(obj), OBJECT_BODY(obj),
+        GET_REG(i->cur_op, 4).o, GET_REG(i->cur_op, 6).s, MVM_NO_HINT);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_box_i(INTERP i){
+    MVM_box_int(i->tc, GET_REG(i->cur_op, 2).i64, GET_REG(i->cur_op, 4).o,
+                &GET_REG(i->cur_op, 0));
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_box_n(INTERP i){
+    MVM_box_num(i->tc, GET_REG(i->cur_op, 2).n64, GET_REG(i->cur_op, 4).o,
+                &GET_REG(i->cur_op, 0));
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_box_s(INTERP i){
+     MVM_box_str(i->tc, GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).o, &GET_REG(i->cur_op, 0));
+     i->cur_op += 6;
+     goto NEXT(i);
+            }
+__code cbc_unbox_i(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    if (!IS_CONCRETE(obj))
+        MVM_exception_throw_adhoc(i->tc, "Cannot unbox a type object (%s) to an int.", MVM_6model_get_debug_name(i->tc, obj));
+    GET_REG(i->cur_op, 0).i64 = REPR(obj)->box_funcs.get_int(i->tc,
+        STABLE(obj), obj, OBJECT_BODY(obj));
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_unbox_n(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    if (!IS_CONCRETE(obj))
+        MVM_exception_throw_adhoc(i->tc, "Cannot unbox a type object (%s) to a num.", MVM_6model_get_debug_name(i->tc, obj));
+    GET_REG(i->cur_op, 0).n64 = REPR(obj)->box_funcs.get_num(i->tc,
+        STABLE(obj), obj, OBJECT_BODY(obj));
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_unbox_s(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    if (!IS_CONCRETE(obj))
+        MVM_exception_throw_adhoc(i->tc, "Cannot unbox a type object (%s) to a str.", MVM_6model_get_debug_name(i->tc, obj));
+    GET_REG(i->cur_op, 0).s = REPR(obj)->box_funcs.get_str(i->tc,
+        STABLE(obj), obj, OBJECT_BODY(obj));
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_atpos_i(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    REPR(obj)->pos_funcs.at_pos(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), GET_REG(i->cur_op, 4).i64,
+        &GET_REG(i->cur_op, 0), MVM_reg_int64);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_atpos_n(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    REPR(obj)->pos_funcs.at_pos(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), GET_REG(i->cur_op, 4).i64,
+        &GET_REG(i->cur_op, 0), MVM_reg_num64);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_atpos_s(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    REPR(obj)->pos_funcs.at_pos(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), GET_REG(i->cur_op, 4).i64,
+        &GET_REG(i->cur_op, 0), MVM_reg_str);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_atpos_o(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    if (IS_CONCRETE(obj))
+        REPR(obj)->pos_funcs.at_pos(i->tc, STABLE(obj), obj,
+            OBJECT_BODY(obj), GET_REG(i->cur_op, 4).i64,
+            &GET_REG(i->cur_op, 0), MVM_reg_obj);
+    else
+        GET_REG(i->cur_op, 0).o = i->tc->instance->VMNull;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_bindpos_i(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    REPR(obj)->pos_funcs.bind_pos(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), GET_REG(i->cur_op, 2).i64,
+        GET_REG(i->cur_op, 4), MVM_reg_int64);
+    MVM_SC_WB_OBJ(i->tc, obj);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_bindpos_n(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    REPR(obj)->pos_funcs.bind_pos(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), GET_REG(i->cur_op, 2).i64,
+        GET_REG(i->cur_op, 4), MVM_reg_num64);
+    MVM_SC_WB_OBJ(i->tc, obj);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_bindpos_s(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    REPR(obj)->pos_funcs.bind_pos(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), GET_REG(i->cur_op, 2).i64,
+        GET_REG(i->cur_op, 4), MVM_reg_str);
+    MVM_SC_WB_OBJ(i->tc, obj);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_bindpos_o(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    REPR(obj)->pos_funcs.bind_pos(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), GET_REG(i->cur_op, 2).i64,
+        GET_REG(i->cur_op, 4), MVM_reg_obj);
+    MVM_SC_WB_OBJ(i->tc, obj);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_push_i(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    REPR(obj)->pos_funcs.push(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), GET_REG(i->cur_op, 2), MVM_reg_int64);
+    MVM_SC_WB_OBJ(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_push_n(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    REPR(obj)->pos_funcs.push(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), GET_REG(i->cur_op, 2), MVM_reg_num64);
+    MVM_SC_WB_OBJ(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_push_s(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    REPR(obj)->pos_funcs.push(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), GET_REG(i->cur_op, 2), MVM_reg_str);
+    MVM_SC_WB_OBJ(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_push_o(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    REPR(obj)->pos_funcs.push(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), GET_REG(i->cur_op, 2), MVM_reg_obj);
+    MVM_SC_WB_OBJ(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_pop_i(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    REPR(obj)->pos_funcs.pop(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), &GET_REG(i->cur_op, 0), MVM_reg_int64);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_pop_n(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    REPR(obj)->pos_funcs.pop(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), &GET_REG(i->cur_op, 0), MVM_reg_num64);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_pop_s(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    REPR(obj)->pos_funcs.pop(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), &GET_REG(i->cur_op, 0), MVM_reg_str);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_pop_o(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    REPR(obj)->pos_funcs.pop(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), &GET_REG(i->cur_op, 0), MVM_reg_obj);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_shift_i(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    REPR(obj)->pos_funcs.shift(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), &GET_REG(i->cur_op, 0), MVM_reg_int64);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_shift_n(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    REPR(obj)->pos_funcs.shift(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), &GET_REG(i->cur_op, 0), MVM_reg_num64);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_shift_s(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    REPR(obj)->pos_funcs.shift(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), &GET_REG(i->cur_op, 0), MVM_reg_str);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_shift_o(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    REPR(obj)->pos_funcs.shift(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), &GET_REG(i->cur_op, 0), MVM_reg_obj);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_unshift_i(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    REPR(obj)->pos_funcs.unshift(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), GET_REG(i->cur_op, 2), MVM_reg_int64);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_unshift_n(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    REPR(obj)->pos_funcs.unshift(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), GET_REG(i->cur_op, 2), MVM_reg_num64);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_unshift_s(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    REPR(obj)->pos_funcs.unshift(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), GET_REG(i->cur_op, 2), MVM_reg_str);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_unshift_o(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    REPR(obj)->pos_funcs.unshift(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), GET_REG(i->cur_op, 2), MVM_reg_obj);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_splice(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    REPR(obj)->pos_funcs.splice(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).i64, GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_setelemspos(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    REPR(obj)->pos_funcs.set_elems(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), GET_REG(i->cur_op, 2).i64);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_existspos(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_repr_exists_pos(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_atkey_i(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    REPR(obj)->ass_funcs.at_key(i->tc, STABLE(obj), obj, OBJECT_BODY(obj),
+        (MVMObject *)GET_REG(i->cur_op, 4).s, &GET_REG(i->cur_op, 0), MVM_reg_int64);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_atkey_n(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    REPR(obj)->ass_funcs.at_key(i->tc, STABLE(obj), obj, OBJECT_BODY(obj),
+        (MVMObject *)GET_REG(i->cur_op, 4).s, &GET_REG(i->cur_op, 0), MVM_reg_num64);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_atkey_s(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    REPR(obj)->ass_funcs.at_key(i->tc, STABLE(obj), obj, OBJECT_BODY(obj),
+        (MVMObject *)GET_REG(i->cur_op, 4).s, &GET_REG(i->cur_op, 0), MVM_reg_str);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_atkey_o(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    if (IS_CONCRETE(obj))
+        REPR(obj)->ass_funcs.at_key(i->tc, STABLE(obj), obj, OBJECT_BODY(obj),
+            (MVMObject *)GET_REG(i->cur_op, 4).s, &GET_REG(i->cur_op, 0), MVM_reg_obj);
+    else
+        GET_REG(i->cur_op, 0).o = i->tc->instance->VMNull;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_bindkey_i(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    REPR(obj)->ass_funcs.bind_key(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), (MVMObject *)GET_REG(i->cur_op, 2).s,
+        GET_REG(i->cur_op, 4), MVM_reg_int64);
+    MVM_SC_WB_OBJ(i->tc, obj);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_bindkey_n(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    REPR(obj)->ass_funcs.bind_key(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), (MVMObject *)GET_REG(i->cur_op, 2).s,
+        GET_REG(i->cur_op, 4), MVM_reg_num64);
+    MVM_SC_WB_OBJ(i->tc, obj);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_bindkey_s(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    REPR(obj)->ass_funcs.bind_key(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), (MVMObject *)GET_REG(i->cur_op, 2).s,
+        GET_REG(i->cur_op, 4), MVM_reg_str);
+    MVM_SC_WB_OBJ(i->tc, obj);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_bindkey_o(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    REPR(obj)->ass_funcs.bind_key(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), (MVMObject *)GET_REG(i->cur_op, 2).s,
+        GET_REG(i->cur_op, 4), MVM_reg_obj);
+    MVM_SC_WB_OBJ(i->tc, obj);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_existskey(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    GET_REG(i->cur_op, 0).i64 = REPR(obj)->ass_funcs.exists_key(i->tc,
+        STABLE(obj), obj, OBJECT_BODY(obj),
+        (MVMObject *)GET_REG(i->cur_op, 4).s);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_deletekey(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    REPR(obj)->ass_funcs.delete_key(i->tc, STABLE(obj), obj,
+        OBJECT_BODY(obj), (MVMObject *)GET_REG(i->cur_op, 2).s);
+    MVM_SC_WB_OBJ(i->tc, obj);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_elems(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    GET_REG(i->cur_op, 0).i64 = (MVMint64)REPR(obj)->elems(i->tc, STABLE(obj), obj, OBJECT_BODY(obj));
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_knowhow(INTERP i){
+    GET_REG(i->cur_op, 0).o = i->tc->instance->KnowHOW;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_knowhowattr(INTERP i){
+    GET_REG(i->cur_op, 0).o = i->tc->instance->KnowHOWAttribute;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_newtype(INTERP i){
+    MVMObject *how = GET_REG(i->cur_op, 2).o;
+    MVMString *repr_name = GET_REG(i->cur_op, 4).s;
+    const MVMREPROps *repr = MVM_repr_get_by_name(i->tc, repr_name);
+    GET_REG(i->cur_op, 0).o = repr->type_object_for(i->tc, how);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_composetype(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    REPR(obj)->compose(i->tc, STABLE(obj), GET_REG(i->cur_op, 4).o);
+    GET_REG(i->cur_op, 0).o = GET_REG(i->cur_op, 2).o;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_setmethcache(INTERP i){
+    MVMObject *iter = MVM_iter(i->tc, GET_REG(i->cur_op, 2).o);
+    MVMObject *cache;
+    MVMSTable *stable;
+    MVMROOT(i->tc, iter, {
+        cache = MVM_repr_alloc_init(i->tc, i->tc->instance->boot_types.BOOTHash);
+    });
+
+    while (MVM_iter_istrue(i->tc, (MVMIter *)iter)) {
+        MVMRegister result;
+        REPR(iter)->pos_funcs.shift(i->tc, STABLE(iter), iter,
+            OBJECT_BODY(iter), &result, MVM_reg_obj);
+        MVM_repr_bind_key_o(i->tc, cache, MVM_iterkey_s(i->tc, (MVMIter *)iter),
+            MVM_iterval(i->tc, (MVMIter *)iter));
+    }
+
+    stable = STABLE(GET_REG(i->cur_op, 0).o);
+    MVM_ASSIGN_REF(i->tc, &(stable->header), stable->method_cache, cache);
+    stable->method_cache_sc = NULL;
+    MVM_SC_WB_ST(i->tc, stable);
+
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_setmethcacheauth(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    MVMint64 new_flags = STABLE(obj)->mode_flags & (~MVM_METHOD_CACHE_AUTHORITATIVE);
+    MVMint64 flag = GET_REG(i->cur_op, 2).i64;
+    if (flag != 0)
+        new_flags |= MVM_METHOD_CACHE_AUTHORITATIVE;
+    STABLE(obj)->mode_flags = new_flags;
+    MVM_SC_WB_ST(i->tc, STABLE(obj));
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_settypecache(INTERP i){
+    MVMObject *obj    = GET_REG(i->cur_op, 0).o;
+    MVMObject *types  = GET_REG(i->cur_op, 2).o;
+    MVMSTable *st     = STABLE(obj);
+    MVMint64 i, elems = REPR(types)->elems(i->tc, STABLE(types), types, OBJECT_BODY(types));
+    MVMObject **cache = MVM_malloc(sizeof(MVMObject *) * elems);
+    for (i = 0; i < elems; i++) {
+        MVM_ASSIGN_REF(i->tc, &(st->header), cache[i], MVM_repr_at_pos_o(i->tc, types, i));
+    }
+    /* technically this free isn't thread safe */
+    if (st->type_check_cache)
+        MVM_free(st->type_check_cache);
+    st->type_check_cache = cache;
+    st->type_check_cache_length = (MVMuint16)elems;
+    MVM_SC_WB_ST(i->tc, st);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_settypecheckmode(INTERP i){
+    MVMSTable *st = STABLE(GET_REG(i->cur_op, 0).o);
+    st->mode_flags = GET_REG(i->cur_op, 2).i64 |
+        (st->mode_flags & (~MVM_TYPE_CHECK_CACHE_FLAG_MASK));
+    MVM_SC_WB_ST(i->tc, st);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_setboolspec(INTERP i){
+    MVMSTable            *st = GET_REG(i->cur_op, 0).o->st;
+    MVMBoolificationSpec *bs = MVM_malloc(sizeof(MVMBoolificationSpec));
+    MVMBoolificationSpec *orig_bs = st->boolification_spec;
+    bs->mode = (MVMuint32)GET_REG(i->cur_op, 2).i64;
+    MVM_ASSIGN_REF(i->tc, &(st->header), bs->method, GET_REG(i->cur_op, 4).o);
+    st->boolification_spec = bs;
+    MVM_free(orig_bs);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_istrue(INTERP i){
+    /* Increment PC first then call coerce, since it may want to
+     * do an invocation. */
+    MVMObject   *obj = GET_REG(i->cur_op, 2).o;
+    MVMRegister *res = &GET_REG(i->cur_op, 0);
+    i->cur_op += 4;
+    MVM_coerce_istrue(i->tc, obj, res, NULL, NULL, 0);
+    goto NEXT(i);
+            }
+__code cbc_isfalse(INTERP i){
+    /* Increment PC first then call coerce, since it may want to
+     * do an invocation. */
+    MVMObject   *obj = GET_REG(i->cur_op, 2).o;
+    MVMRegister *res = &GET_REG(i->cur_op, 0);
+    i->cur_op += 4;
+    MVM_coerce_istrue(i->tc, obj, res, NULL, NULL, 1);
+    goto NEXT(i);
+            }
+__code cbc_bootint(INTERP i){
+    GET_REG(i->cur_op, 0).o = i->tc->instance->boot_types.BOOTInt;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_bootnum(INTERP i){
+    GET_REG(i->cur_op, 0).o = i->tc->instance->boot_types.BOOTNum;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_bootstr(INTERP i){
+    GET_REG(i->cur_op, 0).o = i->tc->instance->boot_types.BOOTStr;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_bootarray(INTERP i){
+    GET_REG(i->cur_op, 0).o = i->tc->instance->boot_types.BOOTArray;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_bootintarray(INTERP i){
+    GET_REG(i->cur_op, 0).o = i->tc->instance->boot_types.BOOTIntArray;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_bootnumarray(INTERP i){
+    GET_REG(i->cur_op, 0).o = i->tc->instance->boot_types.BOOTNumArray;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_bootstrarray(INTERP i){
+    GET_REG(i->cur_op, 0).o = i->tc->instance->boot_types.BOOTStrArray;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_boothash(INTERP i){
+    GET_REG(i->cur_op, 0).o = i->tc->instance->boot_types.BOOTHash;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_isint(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    GET_REG(i->cur_op, 0).i64 = obj && REPR(obj)->ID == MVM_REPR_ID_P6int ? 1 : 0;
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_isnum(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    GET_REG(i->cur_op, 0).i64 = obj && REPR(obj)->ID == MVM_REPR_ID_P6num ? 1 : 0;
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_isstr(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    GET_REG(i->cur_op, 0).i64 = obj && REPR(obj)->ID == MVM_REPR_ID_P6str ? 1 : 0;
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_islist(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    GET_REG(i->cur_op, 0).i64 = obj && REPR(obj)->ID == MVM_REPR_ID_VMArray ? 1 : 0;
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_ishash(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    GET_REG(i->cur_op, 0).i64 = obj && REPR(obj)->ID == MVM_REPR_ID_MVMHash ? 1 : 0;
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_sethllconfig(INTERP i){
+    MVM_hll_set_config(i->tc, GET_REG(i->cur_op, 0).s, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_hllboxtype_i(INTERP i){
+    GET_REG(i->cur_op, 0).o = cu->body.hll_config->int_box_type;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_hllboxtype_n(INTERP i){
+    GET_REG(i->cur_op, 0).o = cu->body.hll_config->num_box_type;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_hllboxtype_s(INTERP i){
+    GET_REG(i->cur_op, 0).o = cu->body.hll_config->str_box_type;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_hlllist(INTERP i){
+    GET_REG(i->cur_op, 0).o = cu->body.hll_config->slurpy_array_type;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_hllhash(INTERP i){
+    GET_REG(i->cur_op, 0).o = cu->body.hll_config->slurpy_hash_type;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_getcomp(INTERP i){
+    MVMObject *obj = i->tc->instance->compiler_registry;
+    uv_mutex_lock(&i->tc->instance->mutex_compiler_registry);
+    GET_REG(i->cur_op, 0).o = MVM_repr_at_key_o(i->tc, obj, GET_REG(i->cur_op, 2).s);
+    uv_mutex_unlock(&i->tc->instance->mutex_compiler_registry);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_bindcomp(INTERP i){
+    MVMObject *obj = i->tc->instance->compiler_registry;
+    uv_mutex_lock(&i->tc->instance->mutex_compiler_registry);
+    REPR(obj)->ass_funcs.bind_key(i->tc, STABLE(obj), obj, OBJECT_BODY(obj),
+        (MVMObject *)GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4), MVM_reg_obj);
+    uv_mutex_unlock(&i->tc->instance->mutex_compiler_registry);
+    GET_REG(i->cur_op, 0).o = GET_REG(i->cur_op, 4).o;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_getcurhllsym(INTERP i){
+    MVMString *hll_name = i->tc->cur_frame->static_info->body.cu->body.hll_name;
+    GET_REG(i->cur_op, 0).o = MVM_hll_sym_get(i->tc, hll_name, GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_bindcurhllsym(INTERP i){
+    MVMObject *syms = i->tc->instance->hll_syms, *hash;
+    MVMString *hll_name = i->tc->cur_frame->static_info->body.cu->body.hll_name;
+    uv_mutex_lock(&i->tc->instance->mutex_hll_syms);
+    hash = MVM_repr_at_key_o(i->tc, syms, hll_name);
+    if (MVM_is_null(i->tc, hash)) {
+        hash = MVM_repr_alloc_init(i->tc, i->tc->instance->boot_types.BOOTHash);
+        /* must re-get syms in case it moved */
+        syms = i->tc->instance->hll_syms;
+        hll_name = i->tc->cur_frame->static_info->body.cu->body.hll_name;
+        MVM_repr_bind_key_o(i->tc, syms, hll_name, hash);
+    }
+    MVM_repr_bind_key_o(i->tc, hash, GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).o);
+    GET_REG(i->cur_op, 0).o = GET_REG(i->cur_op, 4).o;
+    uv_mutex_unlock(&i->tc->instance->mutex_hll_syms);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_gethllsym(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_hll_sym_get(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).s);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_bindhllsym(INTERP i){
+    MVMObject *syms     = i->tc->instance->hll_syms;
+    MVMString *hll_name = GET_REG(i->cur_op, 0).s;
+    MVMObject *hash;
+    uv_mutex_lock(&i->tc->instance->mutex_hll_syms);
+    hash = MVM_repr_at_key_o(i->tc, syms, hll_name);
+    if (MVM_is_null(i->tc, hash)) {
+        hash = MVM_repr_alloc_init(i->tc, i->tc->instance->boot_types.BOOTHash);
+        /* must re-get syms and HLL name in case it moved */
+        syms = i->tc->instance->hll_syms;
+        hll_name = GET_REG(i->cur_op, 0).s;
+        MVM_repr_bind_key_o(i->tc, syms, hll_name, hash);
+    }
+    MVM_repr_bind_key_o(i->tc, hash, GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).o);
+    uv_mutex_unlock(&i->tc->instance->mutex_hll_syms);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_settypehll(INTERP i){
+    STABLE(GET_REG(i->cur_op, 0).o)->hll_owner = MVM_hll_get_config_for(i->tc,
+        GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_settypehllrole(INTERP i){
+    STABLE(GET_REG(i->cur_op, 0).o)->hll_role = GET_REG(i->cur_op, 2).i64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_hllize(INTERP i){
+    /* Increment PC before mapping, as it may invoke. */
+    MVMRegister *res_reg = &GET_REG(i->cur_op, 0);
+    MVMObject   *mapee   = GET_REG(i->cur_op, 2).o;
+    i->cur_op += 4;
+    MVM_hll_map(i->tc, mapee, MVM_hll_current(i->tc), res_reg);
+    goto NEXT(i);
+            }
+__code cbc_hllizefor(INTERP i){
+    /* Increment PC before mapping, as it may invoke. */
+    MVMRegister *res_reg = &GET_REG(i->cur_op, 0);
+    MVMObject   *mapee   = GET_REG(i->cur_op, 2).o;
+    MVMString   *hll     = GET_REG(i->cur_op, 4).s;
+    i->cur_op += 6;
+    MVM_hll_map(i->tc, mapee, MVM_hll_get_config_for(i->tc, hll), res_reg);
+    goto NEXT(i);
+            }
+__code cbc_usecompileehllconfig(INTERP i){
+    MVM_hll_enter_compilee_mode(i->tc);
+    goto NEXT(i);
+}
+__code cbc_usecompilerhllconfig(INTERP i){
+    MVM_hll_leave_compilee_mode(i->tc);
+    goto NEXT(i);
+}
+__code cbc_iter(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_iter(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_iterkey_s(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_iterkey_s(i->tc, (MVMIter *)GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_iterval(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_iterval(i->tc, (MVMIter *)GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_getcodename(INTERP i){
+    MVMObject *co = GET_REG(i->cur_op, 2).o;
+    if (REPR(co)->ID != MVM_REPR_ID_MVMCode || !IS_CONCRETE(co))
+        MVM_exception_throw_adhoc(i->tc, "gei->tcodename requires a concrete code object");
+    GET_REG(i->cur_op, 0).s = ((MVMCode *)co)->body.name;
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_iscoderef(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = !GET_REG(i->cur_op, 2).o ||
+        STABLE(GET_REG(i->cur_op, 2).o)->invoke == MVM_6model_invoke_default ? 0 : 1;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_getcodeobj(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    GET_REG(i->cur_op, 0).o = MVM_frame_get_code_object(i->tc, (MVMCode *)obj);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_setcodeobj(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    if (REPR(obj)->ID == MVM_REPR_ID_MVMCode) {
+        MVM_ASSIGN_REF(i->tc, &(obj->header), ((MVMCode *)obj)->body.code_object,
+            GET_REG(i->cur_op, 2).o);
+    }
+    else {
+        MVM_exception_throw_adhoc(i->tc, "sei->tcodeobj needs a code ref");
+    }
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_setcodename(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    if (REPR(obj)->ID == MVM_REPR_ID_MVMCode) {
+        MVM_ASSIGN_REF(i->tc, &(obj->header), ((MVMCode *)obj)->body.name,
+            GET_REG(i->cur_op, 2).s);
+    }
+    else {
+        MVM_exception_throw_adhoc(i->tc, "sei->tcodename needs a code ref");
+    }
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_forceouterctx(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o, *ctx = GET_REG(i->cur_op, 2).o;
+    MVMFrame *orig;
+    MVMFrame *context;
+    MVMStaticFrame *sf;
+    if (REPR(obj)->ID != MVM_REPR_ID_MVMCode || !IS_CONCRETE(obj)) {
+        MVM_exception_throw_adhoc(i->tc, "forceouterctx needs a code ref");
+    }
+    if (REPR(ctx)->ID != MVM_REPR_ID_MVMContext || !IS_CONCRETE(ctx)) {
+        MVM_exception_throw_adhoc(i->tc, "forceouterctx needs a context");
+    }
+
+    orig = ((MVMCode *)obj)->body.outer;
+    sf = ((MVMCode *)obj)->body.sf;
+    context = ((MVMContext *)ctx)->body.context;
+
+    MVM_ASSIGN_REF(i->tc, &(((MVMObject *)sf)->header), sf->body.outer, context->static_info);
+    if (orig != context)
+        MVM_ASSIGN_REF(i->tc, &(obj->header), ((MVMCode *)obj)->body.outer, context);
+
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_setinvokespec(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o, *ch = GET_REG(i->cur_op, 2).o,
+        *invocation_handler = GET_REG(i->cur_op, 6).o;
+    MVMString *name = GET_REG(i->cur_op, 4).s;
+    MVMInvocationSpec *is = MVM_calloc(1, sizeof(MVMInvocationSpec));
+    MVMSTable *st = STABLE(obj);
+    MVM_ASSIGN_REF(i->tc, &(st->header), is->class_handle, ch);
+    MVM_ASSIGN_REF(i->tc, &(st->header), is->attr_name, name);
+    if (ch && name)
+        is->hint = REPR(ch)->attr_funcs.hint_for(i->tc, STABLE(ch), ch, name);
+    MVM_ASSIGN_REF(i->tc, &(st->header), is->invocation_handler, invocation_handler);
+    /* XXX not thread safe, but this should occur on non-shared objects anyway... */
+    if (st->invocation_spec)
+        MVM_free(st->invocation_spec);
+    st->invocation_spec = is;
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_isinvokable(INTERP i){
+    MVMSTable *st = STABLE(GET_REG(i->cur_op, 2).o);
+    GET_REG(i->cur_op, 0).i64 = st->invoke == MVM_6model_invoke_default
+        ? (st->invocation_spec ? 1 : 0)
+        : 1;
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_freshcoderef(INTERP i){
+    MVMObject * const cr = GET_REG(i->cur_op, 2).o;
+    MVMCode *ncr;
+    if (REPR(cr)->ID != MVM_REPR_ID_MVMCode)
+        MVM_exception_throw_adhoc(i->tc, "freshcoderef requires a coderef");
+    ncr = (MVMCode *)(GET_REG(i->cur_op, 0).o = MVM_repr_clone(i->tc, cr));
+    MVMROOT(i->tc, ncr, {
+        MVMStaticFrame *nsf;
+        if (!ncr->body.sf->body.fully_deserialized)
+            MVM_bytecode_finish_frame(i->tc, ncr->body.sf->body.cu, ncr->body.sf, 0);
+        nsf = (MVMStaticFrame *)MVM_repr_clone(i->tc,
+            (MVMObject *)ncr->body.sf);
+        MVM_ASSIGN_REF(i->tc, &(ncr->common.header), ncr->body.sf, nsf);
+        MVM_ASSIGN_REF(i->tc, &(ncr->common.header), ncr->body.sf->body.static_code, ncr);
+    });
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_markcodestatic(INTERP i){
+    MVMObject * const cr = GET_REG(i->cur_op, 0).o;
+    if (REPR(cr)->ID != MVM_REPR_ID_MVMCode)
+        MVM_exception_throw_adhoc(i->tc, "markcodestatic requires a coderef");
+    ((MVMCode *)cr)->body.is_static = 1;
+    i->cur_op += 2;
+    goto NEXT(i);
+            }
+__code cbc_markcodestub(INTERP i){
+    MVMObject * const cr = GET_REG(i->cur_op, 0).o;
+    if (REPR(cr)->ID != MVM_REPR_ID_MVMCode)
+        MVM_exception_throw_adhoc(i->tc, "markcodestub requires a coderef");
+    ((MVMCode *)cr)->body.is_compiler_stub = 1;
+    i->cur_op += 2;
+    goto NEXT(i);
+            }
+__code cbc_getstaticcode(INTERP i){
+    MVMObject * const cr = GET_REG(i->cur_op, 2).o;
+    if (REPR(cr)->ID != MVM_REPR_ID_MVMCode)
+        MVM_exception_throw_adhoc(i->tc, "getstaticcode requires a static coderef");
+    GET_REG(i->cur_op, 0).o = (MVMObject *)((MVMCode *)cr)->body.sf->body.static_code;
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_getcodecuid(INTERP i){
+    MVMObject * const cr = GET_REG(i->cur_op, 2).o;
+    if (REPR(cr)->ID != MVM_REPR_ID_MVMCode || !IS_CONCRETE(cr))
+        MVM_exception_throw_adhoc(i->tc, "gei->tcodecuid requires a static coderef");
+    GET_REG(i->cur_op, 0).s = ((MVMCode *)cr)->body.sf->body.cuuid;
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_setdispatcher(INTERP i){
+    i->tc->cur_dispai->tcher = GET_REG(i->cur_op, 0).o;
+    i->tc->cur_dispai->tcher_for = NULL;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_takedispatcher(INTERP i){
+    MVMObject *disp = i->tc->cur_dispai->tcher;
+    MVMObject *disp_for = i->tc->cur_dispai->tcher_for;
+    MVMObject *cur_code = i->tc->cur_frame->code_ref;
+    if (disp && (!disp_for || disp_for == cur_code)) {
+        GET_REG(i->cur_op, 0).o = disp;
+        i->tc->cur_dispai->tcher = NULL;
+    }
+    else {
+        GET_REG(i->cur_op, 0).o = i->tc->instance->VMNull;
+    }
+    i->cur_op += 2;
+    goto NEXT(i);
+            }
+__code cbc_assign(INTERP i){
+    MVMObject *cont  = GET_REG(i->cur_op, 0).o;
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    const MVMContainerSpec *spec = STABLE(cont)->container_spec;
+    i->cur_op += 4;
+    if (spec) {
+        spec->store(i->tc, cont, obj);
+    } else {
+        MVM_exception_throw_adhoc(i->tc, "Cannot assign to an immutable value");
+    }
+    goto NEXT(i);
+            }
+__code cbc_assignunchecked(INTERP i){
+    MVMObject *cont  = GET_REG(i->cur_op, 0).o;
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    const MVMContainerSpec *spec = STABLE(cont)->container_spec;
+    i->cur_op += 4;
+    if (spec) {
+        spec->store_unchecked(i->tc, cont, obj);
+    } else {
+        MVM_exception_throw_adhoc(i->tc, "Cannot assign to an immutable value");
+    }
+    goto NEXT(i);
+            }
+__code cbc_iscont(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    GET_REG(i->cur_op, 0).i64 = MVM_is_null(i->tc, obj) || STABLE(obj)->container_spec == NULL ? 0 : 1;
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_decont(INTERP i){
+    MVMuint8 *prev_op = i->cur_op;
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    MVMRegister *r = &GET_REG(i->cur_op, 0);
+    i->cur_op += 4;
+    if (obj && IS_CONCRETE(obj) && STABLE(obj)->container_spec) {
+        STABLE(obj)->container_spec->fei->tch(i->tc, obj, r);
+        if (MVM_spesh_log_is_logging(i->tc))
+            MVM_spesh_log_decont(i->tc, prev_op, r->o);
+    }
+    else {
+        r->o = obj;
+    }
+    goto NEXT(i);
+            }
+__code cbc_setcontspec(INTERP i){
+    MVMSTable *st   = STABLE(GET_REG(i->cur_op, 0).o);
+    MVMString *name = GET_REG(i->cur_op, 2).s;
+    const MVMContainerConfigurer *cc = MVM_6model_get_container_config(i->tc, name);
+    if (cc == NULL) {
+        char *c_name = MVM_string_utf8_encode_C_string(i->tc, name);
+        char *waste[] = { c_name, NULL };
+        MVM_exception_throw_adhoc_free(i->tc, waste, "Cannot use unknown container spec %s",
+            c_name);
+    }
+    if (st->container_spec)
+        MVM_exception_throw_adhoc(i->tc,
+            "Cannot change a type's container specification");
+
+    cc->set_container_spec(i->tc, st);
+    cc->configure_container_spec(i->tc, st, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sha1(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_sha1(i->tc,
+        GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_createsc(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_sc_create(i->tc,
+        GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_scsetobj(INTERP i){
+    MVMObject *sc  = GET_REG(i->cur_op, 0).o;
+    MVMObject *obj = GET_REG(i->cur_op, 4).o;
+    if (REPR(sc)->ID != MVM_REPR_ID_SCRef)
+        MVM_exception_throw_adhoc(i->tc,
+            "Must provide an SCRef operand to scsetobj");
+    MVM_sc_set_object(i->tc, (MVMSerializationContext *)sc,
+        GET_REG(i->cur_op, 2).i64, obj);
+    if (MVM_sc_get_stable_sc(i->tc, STABLE(obj)) == NULL) {
+        /* Need to claim the SC also; typical case for new type objects. */
+        MVMSTable *st = STABLE(obj);
+        MVM_sc_set_stable_sc(i->tc, st, (MVMSerializationContext *)sc);
+        MVM_sc_push_stable(i->tc, (MVMSerializationContext *)sc, st);
+    }
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_scsetcode(INTERP i){
+    MVMObject *sc   = GET_REG(i->cur_op, 0).o;
+    MVMObject *code = GET_REG(i->cur_op, 4).o;
+    if (REPR(sc)->ID != MVM_REPR_ID_SCRef)
+        MVM_exception_throw_adhoc(i->tc,
+            "Must provide an SCRef operand to scsei->tcode");
+    MVM_sc_set_obj_sc(i->tc, code, (MVMSerializationContext *)sc);
+    MVM_sc_set_code(i->tc, (MVMSerializationContext *)sc,
+        GET_REG(i->cur_op, 2).i64, code);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_scgetobj(INTERP i){
+    MVMObject *sc = GET_REG(i->cur_op, 2).o;
+    if (REPR(sc)->ID != MVM_REPR_ID_SCRef)
+        MVM_exception_throw_adhoc(i->tc,
+            "Must provide an SCRef operand to scgetobj");
+    GET_REG(i->cur_op, 0).o = MVM_sc_get_object(i->tc,
+        (MVMSerializationContext *)sc, GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_scgethandle(INTERP i){
+    MVMObject *sc = GET_REG(i->cur_op, 2).o;
+    if (REPR(sc)->ID != MVM_REPR_ID_SCRef)
+        MVM_exception_throw_adhoc(i->tc,
+            "Must provide an SCRef operand to scgethandle");
+    GET_REG(i->cur_op, 0).s = MVM_sc_get_handle(i->tc,
+        (MVMSerializationContext *)sc);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_scgetobjidx(INTERP i){
+    MVMObject *sc = GET_REG(i->cur_op, 2).o;
+    if (REPR(sc)->ID != MVM_REPR_ID_SCRef)
+        MVM_exception_throw_adhoc(i->tc,
+            "Must provide an SCRef operand to scgetobjidx");
+    GET_REG(i->cur_op, 0).i64 = MVM_sc_find_object_idx(i->tc,
+        (MVMSerializationContext *)sc, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_scsetdesc(INTERP i){
+    MVMObject *sc   = GET_REG(i->cur_op, 0).o;
+    MVMString *desc = GET_REG(i->cur_op, 2).s;
+    if (REPR(sc)->ID != MVM_REPR_ID_SCRef)
+        MVM_exception_throw_adhoc(i->tc,
+            "Must provide an SCRef operand to scsetdesc");
+    MVM_sc_set_description(i->tc, (MVMSerializationContext *)sc, desc);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_scobjcount(INTERP i){
+    MVMObject *sc = GET_REG(i->cur_op, 2).o;
+    if (REPR(sc)->ID != MVM_REPR_ID_SCRef)
+        MVM_exception_throw_adhoc(i->tc,
+            "Must provide an SCRef operand to scobjcount");
+    GET_REG(i->cur_op, 0).i64 = MVM_sc_get_object_count(i->tc,
+        (MVMSerializationContext *)sc);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_setobjsc(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    MVMObject *sc  = GET_REG(i->cur_op, 2).o;
+    if (REPR(sc)->ID != MVM_REPR_ID_SCRef)
+        MVM_exception_throw_adhoc(i->tc,
+            "Must provide an SCRef operand to setobjsc");
+    MVM_sc_set_obj_sc(i->tc, obj, (MVMSerializationContext *)sc);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_getobjsc(INTERP i){
+    GET_REG(i->cur_op, 0).o = (MVMObject *)MVM_sc_get_obj_sc(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_serialize(INTERP i){
+    MVMObject *sc = GET_REG(i->cur_op, 2).o;
+    MVMObject *obj = GET_REG(i->cur_op, 4).o;
+    if (REPR(sc)->ID != MVM_REPR_ID_SCRef)
+        MVM_exception_throw_adhoc(i->tc,
+            "Must provide an SCRef operand to serialize");
+    GET_REG(i->cur_op, 0).s = MVM_serialization_serialize(i->tc, (MVMSerializationContext *)sc, obj);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_deserialize(INTERP i){
+    MVMString *blob = GET_REG(i->cur_op, 0).s;
+    MVMObject *sc   = GET_REG(i->cur_op, 2).o;
+    MVMObject *sh   = GET_REG(i->cur_op, 4).o;
+    MVMObject *cr   = GET_REG(i->cur_op, 6).o;
+    MVMObject *conf = GET_REG(i->cur_op, 8).o;
+    if (REPR(sc)->ID != MVM_REPR_ID_SCRef)
+        MVM_exception_throw_adhoc(i->tc,
+            "Must provide an SCRef operand to deserialize");
+    MVM_serialization_deserialize(i->tc, (MVMSerializationContext *)sc,
+        sh, cr, conf, blob);
+    i->cur_op += 10;
+    goto NEXT(i);
+            }
+__code cbc_wval(INTERP i){
+    MVMuint16 dep = GET_UI16(i->cur_op, 2);
+    MVMuint16 idx = GET_UI16(i->cur_op, 4);
+    GET_REG(i->cur_op, 0).o = MVM_sc_get_sc_object(i->tc, cu, dep, idx);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_wval_wide(INTERP i){
+    MVMuint16 dep = GET_UI16(i->cur_op, 2);
+    MVMuint64 idx = MVM_BC_get_I64(i->cur_op, 4);
+    GET_REG(i->cur_op, 0).o = MVM_sc_get_sc_object(i->tc, cu, dep, idx);
+    i->cur_op += 12;
+    goto NEXT(i);
+            }
+__code cbc_scwbdisable(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = ++i->tc->sc_wb_disable_depth;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_scwbenable(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = --i->tc->sc_wb_disable_depth;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_pushcompsc(INTERP i){
+    MVMObject * const sc  = GET_REG(i->cur_op, 0).o;
+    if (REPR(sc)->ID != MVM_REPR_ID_SCRef)
+        MVM_exception_throw_adhoc(i->tc, "Can only push an SCRef with pushcompsc");
+    if (MVM_is_null(i->tc, i->tc->compiling_scs)) {
+        MVMROOT(i->tc, sc, {
+            i->tc->compiling_scs = MVM_repr_alloc_init(i->tc, i->tc->instance->boot_types.BOOTArray);
+        });
+    }
+    MVM_repr_unshift_o(i->tc, i->tc->compiling_scs, sc);
+    i->cur_op += 2;
+    goto NEXT(i);
+            }
+__code cbc_popcompsc(INTERP i){
+    MVMObject * const scs = i->tc->compiling_scs;
+    if (MVM_is_null(i->tc, scs) || MVM_repr_elems(i->tc, scs) == 0)
+        MVM_exception_throw_adhoc(i->tc, "No current compiling SC");
+    GET_REG(i->cur_op, 0).o = MVM_repr_shift_o(i->tc, i->tc->compiling_scs);
+    i->cur_op += 2;
+    goto NEXT(i);
+            }
+__code cbc_scgetdesc(INTERP i){
+    MVMObject *sc = GET_REG(i->cur_op, 2).o;
+    if (REPR(sc)->ID != MVM_REPR_ID_SCRef)
+        MVM_exception_throw_adhoc(i->tc,
+            "Must provide an SCRef operand to scgetdesc");
+    GET_REG(i->cur_op, 0).s = MVM_sc_get_description(i->tc,
+        (MVMSerializationContext *)sc);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_loadbytecode(INTERP i){
+    /* This op will end up returning into the runloop to run
+     * deserialization and load code, so make sure we're done
+     * processing this op really. */
+    MVMString *filename = GET_REG(i->cur_op, 2).s;
+    GET_REG(i->cur_op, 0).s = filename;
+    i->cur_op += 4;
+
+    /* Set up return (really continuation after load) address
+     * and enter bytecode loading process. */
+    i->tc->cur_frame->return_address = i->cur_op;
+    MVM_load_bytecode(i->tc, filename);
+    goto NEXT(i);
+            }
+__code cbc_loadbytecodebuffer(INTERP i){
+    /* This op will end up returning into the runloop to run
+     * deserialization and load code, so make sure we're done
+     * processing this op really. */
+    MVMObject *buffer = GET_REG(i->cur_op, 0).o;
+    i->cur_op += 2;
+
+    /* Set up return (really continuation after load) address
+     * and enter bytecode loading process. */
+    i->tc->cur_frame->return_address = i->cur_op;
+    MVM_load_bytecode_buffer(i->tc, buffer);
+    goto NEXT(i);
+            }
+__code cbc_loadbytecodefh(INTERP i){
+    /* This op will end up returning into the runloop to run
+     * deserialization and load code, so make sure we're done
+     * processing this op really. */
+    MVMObject *file = GET_REG(i->cur_op, 0).o;
+    MVMString *filename = GET_REG(i->cur_op, 2).s;
+    i->cur_op += 4;
+
+    /* Set up return (really continuation after load) address
+     * and enter bytecode loading process. */
+    i->tc->cur_frame->return_address = i->cur_op;
+    MVM_load_bytecode_fh(i->tc, file, filename);
+    goto NEXT(i);
+            }
+__code cbc_masttofile(INTERP i){
+    MVM_mast_to_file(i->tc, GET_REG(i->cur_op, 0).o,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).s);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_masttocu(INTERP i){
+    /* This op will end up returning into the runloop to run
+     * deserialization and load code, so make sure we're done
+     * processing this op really. */
+    MVMObject *node = GET_REG(i->cur_op, 2).o;
+    MVMObject *types = GET_REG(i->cur_op, 4).o;
+    MVMRegister *result_reg = &GET_REG(i->cur_op, 0);
+    i->cur_op += 6;
+
+    /* Set up return (really continuation after load) address
+     * and enter bytecode loading process. */
+    i->tc->cur_frame->return_address = i->cur_op;
+    MVM_mast_to_cu(i->tc, node, types, result_reg);
+    goto NEXT(i);
+            }
+__code cbc_iscompunit(INTERP i){
+    MVMObject *maybe_cu = GET_REG(i->cur_op, 2).o;
+    GET_REG(i->cur_op, 0).i64 = REPR(maybe_cu)->ID == MVM_REPR_ID_MVMCompUnit;
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_compunitmainline(INTERP i){
+    MVMObject *maybe_cu = GET_REG(i->cur_op, 2).o;
+    if (REPR(maybe_cu)->ID == MVM_REPR_ID_MVMCompUnit) {
+        MVMCompUnit *cu = (MVMCompUnit *)maybe_cu;
+        GET_REG(i->cur_op, 0).o = cu->body.coderefs[0];
+    }
+    else {
+        MVM_exception_throw_adhoc(i->tc, "compunitmainline requires an MVMCompUnit");
+    }
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_compunitcodes(INTERP i){
+    MVMObject *     const result = MVM_repr_alloc_init(i->tc, MVM_hll_current(i->tc)->slurpy_array_type);
+    MVMCompUnit * const maybe_cu = (MVMCompUnit *)GET_REG(i->cur_op, 2).o;
+    if (REPR(maybe_cu)->ID == MVM_REPR_ID_MVMCompUnit) {
+        const MVMuint32 num_frames  = maybe_cu->body.num_frames;
+        MVMObject ** const coderefs = maybe_cu->body.coderefs;
+        MVMuint32 i;
+
+        for (i = 0; i < num_frames; i++) {
+            MVM_repr_push_o(i->tc, result, coderefs[i]);
+        }
+
+        GET_REG(i->cur_op, 0).o = result;
+    }
+    else {
+        MVM_exception_throw_adhoc(i->tc, "compunii->tcodes requires an MVMCompUnit");
+    }
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_ctx(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_frame_context_wrapper(i->tc, i->tc->cur_frame);
+    i->cur_op += 2;
+    goto NEXT(i);
+            }
+__code cbc_ctxouter(INTERP i){
+    MVMObject *this_ctx = GET_REG(i->cur_op, 2).o;
+    MVMFrame *frame;
+    if (!IS_CONCRETE(this_ctx) || REPR(this_ctx)->ID != MVM_REPR_ID_MVMContext) {
+        MVM_exception_throw_adhoc(i->tc, "ctxouter needs an MVMContext");
+    }
+    if ((frame = ((MVMContext *)this_ctx)->body.context->outer))
+        GET_REG(i->cur_op, 0).o = MVM_frame_context_wrapper(i->tc, frame);
+    else
+        GET_REG(i->cur_op, 0).o = i->tc->instance->VMNull;
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_ctxcaller(INTERP i){
+    MVMObject *this_ctx = GET_REG(i->cur_op, 2).o, *ctx = NULL;
+    MVMFrame *frame;
+    if (!IS_CONCRETE(this_ctx) || REPR(this_ctx)->ID != MVM_REPR_ID_MVMContext) {
+        MVM_exception_throw_adhoc(i->tc, "ctxcaller needs an MVMContext");
+    }
+    if ((frame = ((MVMContext *)this_ctx)->body.context->caller))
+        ctx = MVM_frame_context_wrapper(i->tc, frame);
+    GET_REG(i->cur_op, 0).o = ctx ? ctx : i->tc->instance->VMNull;
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_ctxlexpad(INTERP i){
+    MVMObject *this_ctx = GET_REG(i->cur_op, 2).o;
+    if (!IS_CONCRETE(this_ctx) || REPR(this_ctx)->ID != MVM_REPR_ID_MVMContext) {
+        MVM_exception_throw_adhoc(i->tc, "ctxlexpad needs an MVMContext");
+    }
+    GET_REG(i->cur_op, 0).o = this_ctx;
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_curcode(INTERP i){
+    GET_REG(i->cur_op, 0).o = i->tc->cur_frame->code_ref;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_callercode(INTERP i){
+    GET_REG(i->cur_op, 0).o = i->tc->cur_frame->caller
+        ? i->tc->cur_frame->caller->code_ref
+        : i->tc->instance->VMNull;
+    i->cur_op += 2;
+    goto NEXT(i);
+            }
+__code cbc_add_I(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_bigint_add(i->tc, GET_REG(i->cur_op, 6).o,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_sub_I(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_bigint_sub(i->tc, GET_REG(i->cur_op, 6).o,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_mul_I(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_bigint_mul(i->tc, GET_REG(i->cur_op, 6).o,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_div_I(INTERP i){
+    MVMObject *   const type = GET_REG(i->cur_op, 6).o;
+    GET_REG(i->cur_op, 0).o = MVM_bigint_div(i->tc, type, GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_mod_I(INTERP i){
+    MVMObject *   const type = GET_REG(i->cur_op, 6).o;
+    GET_REG(i->cur_op, 0).o = MVM_bigint_mod(i->tc, type, GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_neg_I(INTERP i){
+    MVMObject *   const type = GET_REG(i->cur_op, 4).o;
+    MVMObject * const result = MVM_repr_alloc_init(i->tc, type);
+    MVM_bigint_neg(i->tc, result, GET_REG(i->cur_op, 2).o);
+    GET_REG(i->cur_op, 0).o = result;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_abs_I(INTERP i){
+    MVMObject *   const type = GET_REG(i->cur_op, 4).o;
+    MVMObject * const result = MVM_repr_alloc_init(i->tc, type);
+    MVM_bigint_abs(i->tc, result, GET_REG(i->cur_op, 2).o);
+    GET_REG(i->cur_op, 0).o = result;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_cmp_I(INTERP i){
+    MVMObject *a = GET_REG(i->cur_op, 2).o, *b = GET_REG(i->cur_op, 4).o;
+    GET_REG(i->cur_op, 0).i64 = MVM_bigint_cmp(i->tc, a, b);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_eq_I(INTERP i){
+    MVMObject *a = GET_REG(i->cur_op, 2).o, *b = GET_REG(i->cur_op, 4).o;
+    GET_REG(i->cur_op, 0).i64 = MP_EQ == MVM_bigint_cmp(i->tc, a, b);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_ne_I(INTERP i){
+    MVMObject *a = GET_REG(i->cur_op, 2).o, *b = GET_REG(i->cur_op, 4).o;
+    GET_REG(i->cur_op, 0).i64 = MP_EQ != MVM_bigint_cmp(i->tc, a, b);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_lt_I(INTERP i){
+    MVMObject *a = GET_REG(i->cur_op, 2).o, *b = GET_REG(i->cur_op, 4).o;
+    GET_REG(i->cur_op, 0).i64 = MP_LT == MVM_bigint_cmp(i->tc, a, b);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_le_I(INTERP i){
+    MVMObject *a = GET_REG(i->cur_op, 2).o, *b = GET_REG(i->cur_op, 4).o;
+    GET_REG(i->cur_op, 0).i64 = MP_GT != MVM_bigint_cmp(i->tc, a, b);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_gt_I(INTERP i){
+    MVMObject *a = GET_REG(i->cur_op, 2).o, *b = GET_REG(i->cur_op, 4).o;
+    GET_REG(i->cur_op, 0).i64 = MP_GT == MVM_bigint_cmp(i->tc, a, b);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_ge_I(INTERP i){
+    MVMObject *a = GET_REG(i->cur_op, 2).o, *b = GET_REG(i->cur_op, 4).o;
+    GET_REG(i->cur_op, 0).i64 = MP_LT != MVM_bigint_cmp(i->tc, a, b);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_bor_I(INTERP i){
+    MVMObject *   const type = GET_REG(i->cur_op, 6).o;
+    GET_REG(i->cur_op, 0).o = MVM_bigint_or(i->tc, type, GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_bxor_I(INTERP i){
+    MVMObject *   const type = GET_REG(i->cur_op, 6).o;
+    GET_REG(i->cur_op, 0).o = MVM_bigint_xor(i->tc, type, GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_band_I(INTERP i){
+    MVMObject *   const type = GET_REG(i->cur_op, 6).o;
+    GET_REG(i->cur_op, 0).o = MVM_bigint_and(i->tc, type, GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_bnot_I(INTERP i){
+    MVMObject *   const type = GET_REG(i->cur_op, 4).o;
+    GET_REG(i->cur_op, 0).o = MVM_bigint_not(i->tc, type, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_blshift_I(INTERP i){
+    MVMObject *   const type = GET_REG(i->cur_op, 6).o;
+    GET_REG(i->cur_op, 0).o = MVM_bigint_shl(i->tc, type, GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_brshift_I(INTERP i){
+    MVMObject *   const type = GET_REG(i->cur_op, 6).o;
+    GET_REG(i->cur_op, 0).o = MVM_bigint_shr(i->tc, type, GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_pow_I(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_bigint_pow(i->tc, GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).o, GET_REG(i->cur_op, 6).o, GET_REG(i->cur_op, 8).o);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_gcd_I(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_bigint_gcd(i->tc, GET_REG(i->cur_op, 6).o, GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_lcm_I(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_bigint_lcm(i->tc, GET_REG(i->cur_op, 6).o,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_expmod_I(INTERP i){
+    MVMObject *   const type = GET_REG(i->cur_op, 8).o;
+    MVMObject * const result = MVM_repr_alloc_init(i->tc, type);
+    MVM_bigint_expmod(i->tc, result, GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o, GET_REG(i->cur_op, 6).o);
+    GET_REG(i->cur_op, 0).o = result;
+    i->cur_op += 10;
+    goto NEXT(i);
+            }
+__code cbc_isprime_I(INTERP i){
+    MVMObject *a = GET_REG(i->cur_op, 2).o;
+    MVMint64 b = GET_REG(i->cur_op, 4).i64;
+    GET_REG(i->cur_op, 0).i64 = MVM_bigint_is_prime(i->tc, a, b);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_rand_I(INTERP i){
+    MVMObject * const type = GET_REG(i->cur_op, 4).o;
+    GET_REG(i->cur_op, 0).o = MVM_bigint_rand(i->tc, type, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_coerce_In(INTERP i){
+    MVMObject *a = GET_REG(i->cur_op, 2).o;
+    GET_REG(i->cur_op, 0).n64 = MVM_bigint_to_num(i->tc, a);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_coerce_Is(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_bigint_to_str(i->tc, GET_REG(i->cur_op, 2).o, 10);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_coerce_nI(INTERP i){
+    MVMObject *   const type = GET_REG(i->cur_op, 4).o;
+    GET_REG(i->cur_op, 0).o = MVM_bigint_from_num(i->tc, type, GET_REG(i->cur_op, 2).n64);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_coerce_sI(INTERP i){
+    MVMString *s = GET_REG(i->cur_op, 2).s;
+    MVMObject *type = GET_REG(i->cur_op, 4).o;
+    char *buf = MVM_string_ascii_encode(i->tc, s, NULL, 0);
+    MVMObject *a = MVM_repr_alloc_init(i->tc, type);
+    MVM_bigint_from_str(i->tc, a, buf);
+    MVM_free(buf);
+    GET_REG(i->cur_op, 0).o = a;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_isbig_I(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_bigint_is_big(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_bool_I(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_bigint_bool(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_base_I(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_bigint_to_str(i->tc, GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_radix_I(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_bigint_radix(i->tc,
+        GET_REG(i->cur_op, 2).i64, GET_REG(i->cur_op, 4).s,
+        GET_REG(i->cur_op, 6).i64, GET_REG(i->cur_op, 8).i64, GET_REG(i->cur_op, 10).o);
+    i->cur_op += 12;
+    goto NEXT(i);
+}
+__code cbc_div_In(INTERP i){
+    MVMObject *a = GET_REG(i->cur_op, 2).o, *b = GET_REG(i->cur_op, 4).o;
+    GET_REG(i->cur_op, 0).n64 = MVM_bigint_div_num(i->tc, a, b);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_copy_f(INTERP i){
+    MVM_file_copy(i->tc, GET_REG(i->cur_op, 0).s, GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_append_f(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "append is not supported");
+    goto NEXT(i);
+}
+__code cbc_rename_f(INTERP i){
+    MVM_file_rename(i->tc, GET_REG(i->cur_op, 0).s, GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_delete_f(INTERP i){
+    MVM_file_delete(i->tc, GET_REG(i->cur_op, 0).s);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_chmod_f(INTERP i){
+    MVM_file_chmod(i->tc, GET_REG(i->cur_op, 0).s, GET_REG(i->cur_op, 2).i64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_exists_f(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_file_exists(i->tc, GET_REG(i->cur_op, 2).s, 0);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_mkdir(INTERP i){
+    MVM_dir_mkdir(i->tc, GET_REG(i->cur_op, 0).s, GET_REG(i->cur_op, 2).i64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_rmdir(INTERP i){
+    MVM_dir_rmdir(i->tc, GET_REG(i->cur_op, 0).s);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_open_dir(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_dir_open(i->tc, GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_read_dir(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_dir_read(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_close_dir(INTERP i){
+    MVM_dir_close(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_open_fh(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_file_open_fh(i->tc, GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).s);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_close_fh(INTERP i){
+    MVM_io_close(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_seek_fh(INTERP i){
+    MVM_io_seek(i->tc, GET_REG(i->cur_op, 0).o, GET_REG(i->cur_op, 2).i64,
+        GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_lock_fh(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_io_lock(i->tc, GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_unlock_fh(INTERP i){
+    MVM_io_unlock(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_sync_fh(INTERP i){
+    MVM_io_flush(i->tc, GET_REG(i->cur_op, 0).o, 1);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_trunc_fh(INTERP i){
+    MVM_io_truncate(i->tc, GET_REG(i->cur_op, 0).o, GET_REG(i->cur_op, 2).i64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_eof_fh(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_io_eof(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_getstdin(INTERP i){
+    if (MVM_is_null(i->tc, i->tc->instance->stdin_handle))
+        MVM_exception_throw_adhoc(i->tc, "STDIN filehandle was never initialized");
+    GET_REG(i->cur_op, 0).o = i->tc->instance->stdin_handle;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_getstdout(INTERP i){
+    if (MVM_is_null(i->tc, i->tc->instance->stdout_handle))
+        MVM_exception_throw_adhoc(i->tc, "STDOUT filehandle was never initialized");
+    GET_REG(i->cur_op, 0).o = i->tc->instance->stdout_handle;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_getstderr(INTERP i){
+    if (MVM_is_null(i->tc, i->tc->instance->stderr_handle))
+        MVM_exception_throw_adhoc(i->tc, "STDERR filehandle was never initialized");
+    GET_REG(i->cur_op, 0).o = i->tc->instance->stderr_handle;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_connect_sk(INTERP i){
+    MVM_io_connect(i->tc, GET_REG(i->cur_op, 0).o,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_socket(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_io_socket_create(i->tc, GET_REG(i->cur_op, 2).i64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_getport_sk(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_io_getport(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_bind_sk(INTERP i){
+    MVM_io_bind(i->tc, GET_REG(i->cur_op, 0).o,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).i64, (int)GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_accept_sk(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_io_accept(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_decodetocodes(INTERP i){
+    goto cbc_encodefromcodes(i);
+}
+__code cbc_encodefromcodes(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "NYI");
+}
+__code cbc_print(INTERP i){
+    MVM_string_print(i->tc, GET_REG(i->cur_op, 0).s);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_say(INTERP i){
+    MVM_string_say(i->tc, GET_REG(i->cur_op, 0).s);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_tell_fh(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_io_tell(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_stat(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_file_stat(i->tc, GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).i64, 0);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_tryfindmeth(INTERP i){
+    MVMRegister *res  = &GET_REG(i->cur_op, 0);
+    MVMObject   *obj  = GET_REG(i->cur_op, 2).o;
+    MVMString   *name = MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 4));
+    i->cur_op += 8;
+    MVM_6model_find_method(i->tc, obj, name, res, 0);
+    goto NEXT(i);
+            }
+__code cbc_tryfindmeth_s(INTERP i){
+    MVMRegister *res  = &GET_REG(i->cur_op, 0);
+    MVMObject   *obj  = GET_REG(i->cur_op, 2).o;
+    MVMString   *name = GET_REG(i->cur_op, 4).s;
+    i->cur_op += 6;
+    MVM_6model_find_method(i->tc, obj, name, res, 0);
+    goto NEXT(i);
+            }
+__code cbc_chdir(INTERP i){
+    MVM_dir_chdir(i->tc, GET_REG(i->cur_op, 0).s);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_srand(INTERP i){
+    MVM_proc_seed(i->tc, GET_REG(i->cur_op, 0).i64);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_rand_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_proc_rand_i(i->tc);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_rand_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = MVM_proc_rand_n(i->tc);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_time_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_proc_time_i(i->tc);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_sleep(INTERP i){
+    MVM_gc_mark_thread_blocked(i->tc);
+    MVM_platform_sleep(GET_REG(i->cur_op, 0).n64);
+    MVM_gc_mark_thread_unblocked(i->tc);
+    i->cur_op += 2;
+    goto NEXT(i);
+            }
+__code cbc_newthread(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_thread_new(i->tc, GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_threadjoin(INTERP i){
+    MVM_thread_join(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_time_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = MVM_proc_time_n(i->tc);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_exit(INTERP i){
+    MVMint64 exit_code = GET_REG(i->cur_op, 0).i64;
+    MVM_io_flush_standard_handles(i->tc);
+    exit(exit_code);
+            }
+__code cbc_cwd(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_dir_cwd(i->tc);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_clargs(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_proc_clargs(i->tc);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_getenvhash(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_proc_getenvhash(i->tc);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_loadlib(INTERP i){
+    MVMString *name = GET_REG(i->cur_op, 0).s;
+    MVMString *path = GET_REG(i->cur_op, 2).s;
+    MVM_dll_load(i->tc, name, path);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_freelib(INTERP i){
+    MVMString *name = GET_REG(i->cur_op, 0).s;
+    MVM_dll_free(i->tc, name);
+    i->cur_op += 2;
+    goto NEXT(i);
+            }
+__code cbc_findsym(INTERP i){
+    MVMString *lib = GET_REG(i->cur_op, 2).s;
+    MVMString *sym = GET_REG(i->cur_op, 4).s;
+    MVMObject *obj = MVM_dll_find_symbol(i->tc, lib, sym);
+    if (MVM_is_null(i->tc, obj))
+        MVM_exception_throw_adhoc(i->tc, "symbol not found in DLL");
+
+    GET_REG(i->cur_op, 0).o = obj;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_dropsym(INTERP i){
+    MVM_dll_drop_symbol(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 2;
+    goto NEXT(i);
+            }
+__code cbc_loadext(INTERP i){
+    MVMString *lib = GET_REG(i->cur_op, 0).s;
+    MVMString *ext = GET_REG(i->cur_op, 2).s;
+    MVM_ext_load(i->tc, lib, ext);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_backendconfig(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_backend_config(i->tc);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_getlexouter(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_frame_find_lexical_by_name_outer(i->tc,
+        GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_getlexrel(INTERP i){
+    MVMObject *ctx  = GET_REG(i->cur_op, 2).o;
+    MVMRegister *r;
+    if (REPR(ctx)->ID != MVM_REPR_ID_MVMContext || !IS_CONCRETE(ctx))
+        MVM_exception_throw_adhoc(i->tc, "getlexrel needs a context");
+    r = MVM_frame_find_lexical_by_name_rel(i->tc,
+        GET_REG(i->cur_op, 4).s, ((MVMContext *)ctx)->body.context);
+    GET_REG(i->cur_op, 0).o = r ? r->o : i->tc->instance->VMNull;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_getlexreldyn(INTERP i){
+    MVMObject *ctx  = GET_REG(i->cur_op, 2).o;
+    if (REPR(ctx)->ID != MVM_REPR_ID_MVMContext || !IS_CONCRETE(ctx))
+        MVM_exception_throw_adhoc(i->tc, "getlexreldyn needs a context");
+    GET_REG(i->cur_op, 0).o = MVM_frame_getdynlex(i->tc, GET_REG(i->cur_op, 4).s,
+            ((MVMContext *)ctx)->body.context);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_getlexrelcaller(INTERP i){
+    MVMObject   *ctx  = GET_REG(i->cur_op, 2).o;
+    MVMRegister *res;
+    if (REPR(ctx)->ID != MVM_REPR_ID_MVMContext || !IS_CONCRETE(ctx))
+        MVM_exception_throw_adhoc(i->tc, "getlexrelcaller needs a context");
+    res = MVM_frame_find_lexical_by_name_rel_caller(i->tc, GET_REG(i->cur_op, 4).s,
+        ((MVMContext *)ctx)->body.context);
+    GET_REG(i->cur_op, 0).o = res ? res->o : i->tc->instance->VMNull;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_getlexcaller(INTERP i){
+    MVMRegister *res = MVM_frame_find_lexical_by_name_rel_caller(i->tc,
+        GET_REG(i->cur_op, 2).s, i->tc->cur_frame->caller);
+    GET_REG(i->cur_op, 0).o = res ? res->o : i->tc->instance->VMNull;
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_bitand_s(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_string_bitand(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).s);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_bitor_s(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_string_bitor(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).s);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_bitxor_s(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_string_bitxor(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).s);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_isnanorinf(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_num_isnanorinf(i->tc, GET_REG(i->cur_op, 2).n64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_inf(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = MVM_num_posinf(i->tc);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_neginf(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = MVM_num_neginf(i->tc);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_nan(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = MVM_num_nan(i->tc);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_getpid(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_proc_getpid(i->tc);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_filereadable(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_file_isreadable(i->tc, GET_REG(i->cur_op, 2).s,0);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_filewritable(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_file_iswritable(i->tc, GET_REG(i->cur_op, 2).s,0);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_fileexecutable(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_file_isexecutable(i->tc, GET_REG(i->cur_op, 2).s,0);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_capturenamedshash(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    if (IS_CONCRETE(obj) && REPR(obj)->ID == MVM_REPR_ID_MVMCallCapture) {
+        MVMCallCapture *cc = (MVMCallCapture *)obj;
+        GET_REG(i->cur_op, 0).o = MVM_args_slurpy_named(i->tc, cc->body.apc);
+    }
+    else {
+        MVM_exception_throw_adhoc(i->tc, "capturehasnameds needs a MVMCallCapture");
+    }
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_read_fhb(INTERP i){
+    MVM_io_read_bytes(i->tc, GET_REG(i->cur_op, 0).o, GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_write_fhb(INTERP i){
+    MVM_io_write_bytes(i->tc, GET_REG(i->cur_op, 0).o, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_replace(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_string_replace(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).i64, GET_REG(i->cur_op, 6).i64, GET_REG(i->cur_op, 8).s);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_newexception(INTERP i){
+    GET_REG(i->cur_op, 0).o = (MVMObject *)MVM_repr_alloc_init(i->tc,
+        i->tc->instance->boot_types.BOOTException);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_permit(INTERP i){
+    MVM_io_eventloop_permit(i->tc, GET_REG(i->cur_op, 0).o, GET_REG(i->cur_op, 2).i64,
+           GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_backtrace(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_exception_backtrace(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_symlink(INTERP i){
+    MVM_file_symlink(i->tc, GET_REG(i->cur_op, 0).s, GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_link(INTERP i){
+    MVM_file_link(i->tc, GET_REG(i->cur_op, 0).s, GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_gethostname(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_io_get_hostname(i->tc);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_exreturnafterunwind(INTERP i){
+    MVMObject *ex = GET_REG(i->cur_op, 0).o;
+    MVM_exception_returnafterunwind(i->tc, ex);
+    i->cur_op += 2;
+    goto NEXT(i);
+            }
+__code cbc_continuationreset(INTERP i){
+    MVMRegister *res  = &GET_REG(i->cur_op, 0);
+    MVMObject   *tag  = GET_REG(i->cur_op, 2).o;
+    MVMObject   *code = GET_REG(i->cur_op, 4).o;
+    i->cur_op += 6;
+    MVM_continuation_reset(i->tc, tag, code, res);
+    goto NEXT(i);
+            }
+__code cbc_continuationcontrol(INTERP i){
+    MVMRegister *res     = &GET_REG(i->cur_op, 0);
+    MVMint64     protect = GET_REG(i->cur_op, 2).i64;
+    MVMObject   *tag     = GET_REG(i->cur_op, 4).o;
+    MVMObject   *code    = GET_REG(i->cur_op, 6).o;
+    i->cur_op += 8;
+    MVM_continuation_control(i->tc, protect, tag, code, res);
+    goto NEXT(i);
+            }
+__code cbc_continuationinvoke(INTERP i){
+    MVMRegister *res  = &GET_REG(i->cur_op, 0);
+    MVMObject   *cont = GET_REG(i->cur_op, 2).o;
+    MVMObject   *code = GET_REG(i->cur_op, 4).o;
+    i->cur_op += 6;
+    MVM_continuation_invoke(i->tc, (MVMContinuation *)cont, code, res);
+    goto NEXT(i);
+            }
+__code cbc_randscale_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = MVM_proc_rand_n(i->tc) * GET_REG(i->cur_op, 2).n64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_uniisblock(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = (MVMint64)MVM_unicode_is_in_block(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).i64, GET_REG(i->cur_op, 6).s);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_assertparamcheck(INTERP i){
+    MVMint64 ok = GET_REG(i->cur_op, 0).i64;
+    i->cur_op += 2;
+    if (!ok)
+        MVM_args_bind_failed(i->tc);
+    goto NEXT(i);
+            }
+__code cbc_hintfor(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    GET_REG(i->cur_op, 0).i64 = REPR(obj)->attr_funcs.hint_for(i->tc,
+        STABLE(obj), obj,
+        GET_REG(i->cur_op, 4).s);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_paramnamesused(INTERP i){
+    MVMArgProcContext *ctx = &i->tc->cur_frame->params;
+    if (ctx->callsite->num_pos != ctx->callsite->arg_count)
+        MVM_args_assert_nameds_used(i->tc, ctx);
+    goto NEXT(i);
+            }
+__code cbc_getuniname(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_unicode_get_name(i->tc, GET_REG(i->cur_op, 2).i64);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_getuniprop_int(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_unicode_codepoint_get_property_int(i->tc,
+        GET_REG(i->cur_op, 2).i64, GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_getuniprop_bool(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_unicode_codepoint_get_property_bool(i->tc,
+        GET_REG(i->cur_op, 2).i64, GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_getuniprop_str(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_unicode_codepoint_get_property_str(i->tc,
+        GET_REG(i->cur_op, 2).i64, GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_matchuniprop(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_unicode_codepoint_has_property_value(i->tc,
+        GET_REG(i->cur_op, 2).i64, GET_REG(i->cur_op, 4).i64,
+        GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_nativecallbuild(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_nativecall_build(i->tc, GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).s,
+        GET_REG(i->cur_op, 6).s, GET_REG(i->cur_op, 8).s,
+        GET_REG(i->cur_op, 10).o, GET_REG(i->cur_op, 12).o);
+    i->cur_op += 14;
+    goto NEXT(i);
+}
+__code cbc_nativecallinvoke(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nativecall_invoke(i->tc, GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).o, GET_REG(i->cur_op, 6).o);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_nativecallrefresh(INTERP i){
+    MVM_nativecall_refresh(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_threadrun(INTERP i){
+    MVM_thread_run(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_threadid(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_thread_id(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_threadyield(INTERP i){
+    MVM_thread_yield(i->tc);
+    goto NEXT(i);
+}
+__code cbc_currentthread(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_thread_current(i->tc);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_lock(INTERP i){
+    MVM_reentrantmutex_lock_checked(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_unlock(INTERP i){
+    MVM_reentrantmutex_unlock_checked(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_semacquire(INTERP i){
+    MVMObject *sem = GET_REG(i->cur_op, 0).o;
+    if (REPR(sem)->ID == MVM_REPR_ID_Semaphore && IS_CONCRETE(sem))
+        MVM_semaphore_acquire(i->tc, (MVMSemaphore *)sem);
+    else
+        MVM_exception_throw_adhoc(i->tc,
+            "semacquire requires a concrete object with REPR Semaphore");
+    i->cur_op += 2;
+    goto NEXT(i);
+            }
+__code cbc_semtryacquire(INTERP i){
+    MVMObject *sem = GET_REG(i->cur_op, 2).o;
+    if (REPR(sem)->ID == MVM_REPR_ID_Semaphore && IS_CONCRETE(sem))
+        GET_REG(i->cur_op, 0).i64 = MVM_semaphore_tryacquire(i->tc,
+            (MVMSemaphore *)sem);
+    else
+        MVM_exception_throw_adhoc(i->tc,
+            "semtryacquire requires a concrete object with REPR Semaphore");
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_semrelease(INTERP i){
+    MVMObject *sem = GET_REG(i->cur_op, 0).o;
+    if (REPR(sem)->ID == MVM_REPR_ID_Semaphore && IS_CONCRETE(sem))
+        MVM_semaphore_release(i->tc, (MVMSemaphore *)sem);
+    else
+        MVM_exception_throw_adhoc(i->tc,
+            "semrelease requires a concrete object with REPR Semaphore");
+    i->cur_op += 2;
+    goto NEXT(i);
+            }
+__code cbc_getlockcondvar(INTERP i){
+    MVMObject *lock = GET_REG(i->cur_op, 2).o;
+    if (REPR(lock)->ID == MVM_REPR_ID_ReentrantMutex && IS_CONCRETE(lock))
+        GET_REG(i->cur_op, 0).o = MVM_conditionvariable_from_lock(i->tc,
+            (MVMReentrantMutex *)lock, GET_REG(i->cur_op, 4).o);
+    else
+        MVM_exception_throw_adhoc(i->tc,
+            "getlockcondvar requires a concrete object with REPR ReentrantMutex");
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_condwait(INTERP i){
+    MVMObject *cv = GET_REG(i->cur_op, 0).o;
+    if (REPR(cv)->ID == MVM_REPR_ID_ConditionVariable && IS_CONCRETE(cv))
+        MVM_conditionvariable_wait(i->tc, (MVMConditionVariable *)cv);
+    else
+        MVM_exception_throw_adhoc(i->tc,
+            "condwait requires a concrete object with REPR ConditionVariable");
+    i->cur_op += 2;
+    goto NEXT(i);
+            }
+__code cbc_condsignalone(INTERP i){
+    MVMObject *cv = GET_REG(i->cur_op, 0).o;
+    if (REPR(cv)->ID == MVM_REPR_ID_ConditionVariable && IS_CONCRETE(cv))
+        MVM_conditionvariable_signal_one(i->tc, (MVMConditionVariable *)cv);
+    else
+        MVM_exception_throw_adhoc(i->tc,
+            "condsignalone requires a concrete object with REPR ConditionVariable");
+    i->cur_op += 2;
+    goto NEXT(i);
+            }
+__code cbc_condsignalall(INTERP i){
+    MVMObject *cv = GET_REG(i->cur_op, 0).o;
+    if (REPR(cv)->ID == MVM_REPR_ID_ConditionVariable && IS_CONCRETE(cv))
+        MVM_conditionvariable_signal_all(i->tc, (MVMConditionVariable *)cv);
+    else
+        MVM_exception_throw_adhoc(i->tc,
+            "condsignalall requires a concrete object with REPR ConditionVariable");
+    i->cur_op += 2;
+    goto NEXT(i);
+            }
+__code cbc_queuepoll(INTERP i){
+    MVMObject *queue = GET_REG(i->cur_op, 2).o;
+    if (REPR(queue)->ID == MVM_REPR_ID_ConcBlockingQueue && IS_CONCRETE(queue))
+        GET_REG(i->cur_op, 0).o = MVM_concblockingqueue_poll(i->tc,
+            (MVMConcBlockingQueue *)queue);
+    else
+        MVM_exception_throw_adhoc(i->tc,
+            "queuepoll requires a concrete object with REPR ConcBlockingQueue");
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_setmultispec(INTERP i){
+    MVMObject *obj        = GET_REG(i->cur_op, 0).o;
+    MVMObject *ch         = GET_REG(i->cur_op, 2).o;
+    MVMString *valid_attr = GET_REG(i->cur_op, 4).s;
+    MVMString *cache_attr = GET_REG(i->cur_op, 6).s;
+    MVMSTable *st         = STABLE(obj);
+    MVMInvocationSpec *is = st->invocation_spec;
+    if (!is)
+        MVM_exception_throw_adhoc(i->tc,
+            "Can only use setmultispec after setinvokespec");
+    MVM_ASSIGN_REF(i->tc, &(st->header), is->md_class_handle, ch);
+    MVM_ASSIGN_REF(i->tc, &(st->header), is->md_valid_attr_name, valid_attr);
+    MVM_ASSIGN_REF(i->tc, &(st->header), is->md_cache_attr_name, cache_attr);
+    is->md_valid_hint = REPR(ch)->attr_funcs.hint_for(i->tc, STABLE(ch), ch,
+        valid_attr);
+    is->md_cache_hint = REPR(ch)->attr_funcs.hint_for(i->tc, STABLE(ch), ch,
+        cache_attr);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_ctxouterskipthunks(INTERP i){
+    MVMObject *this_ctx = GET_REG(i->cur_op, 2).o;
+    MVMFrame *frame;
+    if (!IS_CONCRETE(this_ctx) || REPR(this_ctx)->ID != MVM_REPR_ID_MVMContext) {
+        MVM_exception_throw_adhoc(i->tc, "ctxouter needs an MVMContext");
+    }
+    frame = ((MVMContext *)this_ctx)->body.context->outer;
+    while (frame && frame->static_info->body.is_thunk)
+        frame = frame->caller;
+    if (frame)
+        GET_REG(i->cur_op, 0).o = MVM_frame_context_wrapper(i->tc, frame);
+    else
+        GET_REG(i->cur_op, 0).o = i->tc->instance->VMNull;
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_ctxcallerskipthunks(INTERP i){
+    MVMObject *this_ctx = GET_REG(i->cur_op, 2).o, *ctx = NULL;
+    MVMFrame *frame;
+    if (!IS_CONCRETE(this_ctx) || REPR(this_ctx)->ID != MVM_REPR_ID_MVMContext) {
+        MVM_exception_throw_adhoc(i->tc, "ctxcaller needs an MVMContext");
+    }
+    frame = ((MVMContext *)this_ctx)->body.context->caller;
+    while (frame && frame->static_info->body.is_thunk)
+        frame = frame->caller;
+    if (frame)
+        ctx = MVM_frame_context_wrapper(i->tc, frame);
+    GET_REG(i->cur_op, 0).o = ctx ? ctx : i->tc->instance->VMNull;
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_timer(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_io_timer_create(i->tc, GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).o, GET_REG(i->cur_op, 6).i64,
+        GET_REG(i->cur_op, 8).i64, GET_REG(i->cur_op, 10).o);
+    i->cur_op += 12;
+    goto NEXT(i);
+}
+__code cbc_cancel(INTERP i){
+    MVM_io_eventloop_cancel_work(i->tc, GET_REG(i->cur_op, 0).o, NULL, NULL);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_signal(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_io_signal_handle(i->tc, GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).o, GET_REG(i->cur_op, 6).i64, GET_REG(i->cur_op, 8).o);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_watchfile(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_io_file_wai->tch(i->tc, GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).o, GET_REG(i->cur_op, 6).s, GET_REG(i->cur_op, 8).o);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_asyncconnect(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_io_socket_connect_async(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o, GET_REG(i->cur_op, 6).s,
+        GET_REG(i->cur_op, 8).i64, GET_REG(i->cur_op, 10).o);
+    i->cur_op += 12;
+    goto NEXT(i);
+}
+__code cbc_asynclisten(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_io_socket_listen_async(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o, GET_REG(i->cur_op, 6).s,
+        GET_REG(i->cur_op, 8).i64, (int)GET_REG(i->cur_op, 10).i64, GET_REG(i->cur_op, 12).o);
+    i->cur_op += 14;
+    goto NEXT(i);
+}
+__code cbc_asyncwritebytes(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_io_write_bytes_async(i->tc, GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).o, GET_REG(i->cur_op, 6).o, GET_REG(i->cur_op, 8).o,
+        GET_REG(i->cur_op, 10).o);
+    i->cur_op += 12;
+    goto NEXT(i);
+}
+__code cbc_asyncreadbytes(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_io_read_bytes_async(i->tc, GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).o, GET_REG(i->cur_op, 6).o, GET_REG(i->cur_op, 8).o,
+        GET_REG(i->cur_op, 10).o);
+    i->cur_op += 12;
+    goto NEXT(i);
+}
+__code cbc_getlexstatic_o(INTERP i){
+    MVMRegister *found = MVM_frame_find_lexical_by_name(i->tc,
+        GET_REG(i->cur_op, 2).s, MVM_reg_obj);
+    if (found) {
+        GET_REG(i->cur_op, 0).o = found->o;
+        if (MVM_spesh_log_is_logging(i->tc))
+            MVM_spesh_log_static(i->tc, found->o);
+    }
+    else {
+        GET_REG(i->cur_op, 0).o = i->tc->instance->VMNull;
+    }
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_getlexperinvtype_o(INTERP i){
+    MVMRegister *found = MVM_frame_find_lexical_by_name(i->tc,
+        GET_REG(i->cur_op, 2).s, MVM_reg_obj);
+    if (found) {
+        GET_REG(i->cur_op, 0).o = found->o;
+        if (MVM_spesh_log_is_logging(i->tc))
+            MVM_spesh_log_type(i->tc, found->o);
+    }
+    else {
+        GET_REG(i->cur_op, 0).o = i->tc->instance->VMNull;
+    }
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_execname(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_executable_name(i->tc);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_const_i64_16(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_I16(i->cur_op, 2);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_const_i64_32(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = GET_I32(i->cur_op, 2);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_isnonnull(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    GET_REG(i->cur_op, 0).i64 = !MVM_is_null(i->tc, obj);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_param_rn2_i(INTERP i){
+    MVMArgInfo param = MVM_args_get_named_int(i->tc, &i->tc->cur_frame->params,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_ARG_OPTIONAL);
+    if (param.exists)
+        GET_REG(i->cur_op, 0).i64 = param.arg.i64;
+    else
+        GET_REG(i->cur_op, 0).i64 = MVM_args_get_named_int(i->tc, &i->tc->cur_frame->params,
+            MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 6)), MVM_ARG_REQUIRED).arg.i64;
+    i->cur_op += 10;
+    goto NEXT(i);
+            }
+__code cbc_param_rn2_n(INTERP i){
+    MVMArgInfo param = MVM_args_get_named_num(i->tc, &i->tc->cur_frame->params,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_ARG_OPTIONAL);
+    if (param.exists)
+        GET_REG(i->cur_op, 0).n64 = param.arg.n64;
+    else
+        GET_REG(i->cur_op, 0).n64 = MVM_args_get_named_num(i->tc, &i->tc->cur_frame->params,
+            MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 6)), MVM_ARG_REQUIRED).arg.n64;
+    i->cur_op += 10;
+    goto NEXT(i);
+            }
+__code cbc_param_rn2_s(INTERP i){
+    MVMArgInfo param = MVM_args_get_named_str(i->tc, &i->tc->cur_frame->params,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_ARG_OPTIONAL);
+    if (param.exists)
+        GET_REG(i->cur_op, 0).s = param.arg.s;
+    else
+        GET_REG(i->cur_op, 0).s = MVM_args_get_named_str(i->tc, &i->tc->cur_frame->params,
+            MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 6)), MVM_ARG_REQUIRED).arg.s;
+    i->cur_op += 10;
+    goto NEXT(i);
+            }
+__code cbc_param_rn2_o(INTERP i){
+    MVMArgInfo param = MVM_args_get_named_obj(i->tc, &i->tc->cur_frame->params,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_ARG_OPTIONAL);
+    if (!param.exists)
+        param = MVM_args_get_named_obj(i->tc, &i->tc->cur_frame->params,
+            MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 6)), MVM_ARG_REQUIRED);
+    GET_REG(i->cur_op, 0).o = param.arg.o;
+    if (MVM_spesh_log_is_logging(i->tc))
+        MVM_spesh_log_parameter(i->tc, param.arg_idx, param.arg.o);
+    i->cur_op += 10;
+    goto NEXT(i);
+            }
+__code cbc_param_on2_i(INTERP i){
+    MVMArgInfo param = MVM_args_get_named_int(i->tc, &i->tc->cur_frame->params,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_ARG_OPTIONAL);
+    if (!param.exists)
+        param = MVM_args_get_named_int(i->tc, &i->tc->cur_frame->params,
+            MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 6)), MVM_ARG_OPTIONAL);
+    if (param.exists) {
+        GET_REG(i->cur_op, 0).i64 = param.arg.i64;
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 10);
+    }
+    else {
+        i->cur_op += 14;
+    }
+    goto NEXT(i);
+            }
+__code cbc_param_on2_n(INTERP i){
+    MVMArgInfo param = MVM_args_get_named_num(i->tc, &i->tc->cur_frame->params,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_ARG_OPTIONAL);
+    if (!param.exists)
+        param = MVM_args_get_named_num(i->tc, &i->tc->cur_frame->params,
+            MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 6)), MVM_ARG_OPTIONAL);
+    if (param.exists) {
+        GET_REG(i->cur_op, 0).n64 = param.arg.n64;
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 10);
+    }
+    else {
+        i->cur_op += 14;
+    }
+    goto NEXT(i);
+            }
+__code cbc_param_on2_s(INTERP i){
+    MVMArgInfo param = MVM_args_get_named_str(i->tc, &i->tc->cur_frame->params,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_ARG_OPTIONAL);
+    if (!param.exists)
+        param = MVM_args_get_named_str(i->tc, &i->tc->cur_frame->params,
+            MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 6)), MVM_ARG_OPTIONAL);
+    if (param.exists) {
+        GET_REG(i->cur_op, 0).s = param.arg.s;
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 10);
+    }
+    else {
+        i->cur_op += 14;
+    }
+    goto NEXT(i);
+            }
+__code cbc_param_on2_o(INTERP i){
+    MVMArgInfo param = MVM_args_get_named_obj(i->tc, &i->tc->cur_frame->params,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_ARG_OPTIONAL);
+    if (!param.exists)
+        param = MVM_args_get_named_obj(i->tc, &i->tc->cur_frame->params,
+            MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 6)), MVM_ARG_OPTIONAL);
+    if (param.exists) {
+        GET_REG(i->cur_op, 0).o = param.arg.o;
+        if (MVM_spesh_log_is_logging(i->tc))
+            MVM_spesh_log_parameter(i->tc, param.arg_idx, param.arg.o);
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 10);
+    }
+    else {
+        i->cur_op += 14;
+    }
+    goto NEXT(i);
+            }
+__code cbc_osrpoint(INTERP i){
+    if (MVM_spesh_log_is_logging(i->tc))
+        MVM_spesh_log_osr(i->tc);
+    MVM_spesh_osr_poll_for_result(i->tc);
+    goto NEXT(i);
+}
+__code cbc_nativecallcast(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nativecall_cast(i->tc, GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).o, GET_REG(i->cur_op, 6).o);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_spawnprocasync(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_proc_spawn_async(i->tc, GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).o, GET_REG(i->cur_op, 6).s,
+        GET_REG(i->cur_op, 8).o, GET_REG(i->cur_op, 10).o);
+    i->cur_op += 12;
+    goto NEXT(i);
+}
+__code cbc_killprocasync(INTERP i){
+    MVM_proc_kill_async(i->tc, GET_REG(i->cur_op, 0).o, GET_REG(i->cur_op, 2).i64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_startprofile(INTERP i){
+    MVM_profile_start(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_endprofile(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_profile_end(i->tc);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_objectid(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = (MVMint64)MVM_gc_object_id(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_settypefinalize(INTERP i){
+    MVM_gc_finalize_set(i->tc, GET_REG(i->cur_op, 0).o, GET_REG(i->cur_op, 2).i64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_force_gc(INTERP i){
+    MVM_gc_enter_from_allocator(i->tc);
+    goto NEXT(i);
+}
+__code cbc_nativecallglobal(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nativecall_global(i->tc, GET_REG(i->cur_op, 2).s,
+        GET_REG(i->cur_op, 4).s, GET_REG(i->cur_op, 6).o, GET_REG(i->cur_op, 8).o);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_setparameterizer(INTERP i){
+    MVM_6model_parametric_setup(i->tc, GET_REG(i->cur_op, 0).o, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_parameterizetype(INTERP i){
+    MVMObject   *type   = GET_REG(i->cur_op, 2).o;
+    MVMObject   *params = GET_REG(i->cur_op, 4).o;
+    MVMRegister *result = &(GET_REG(i->cur_op, 0));
+    i->cur_op += 6;
+    MVM_6model_parametric_parameterize(i->tc, type, params, result);
+    goto NEXT(i);
+            }
+__code cbc_typeparameterized(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_6model_parametric_type_parameterized(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_typeparameters(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_6model_parametric_type_parameters(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_typeparameterat(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_6model_parametric_type_parameter_at(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_readlink(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_file_readlink(i->tc, GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_lstat(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_file_stat(i->tc, GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).i64, 1);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_iscont_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_6model_container_iscont_i(i->tc,
+        GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_iscont_n(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_6model_container_iscont_n(i->tc,
+        GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_iscont_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_6model_container_iscont_s(i->tc,
+        GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_assign_i(INTERP i){
+    MVMObject *cont  = GET_REG(i->cur_op, 0).o;
+    MVMint64   value = GET_REG(i->cur_op, 2).i64;
+    i->cur_op += 4;
+    MVM_6model_container_assign_i(i->tc, cont, value);
+    goto NEXT(i);
+            }
+__code cbc_assign_n(INTERP i){
+    MVMObject *cont  = GET_REG(i->cur_op, 0).o;
+    MVMnum64   value = GET_REG(i->cur_op, 2).n64;
+    i->cur_op += 4;
+    MVM_6model_container_assign_n(i->tc, cont, value);
+    goto NEXT(i);
+            }
+__code cbc_assign_s(INTERP i){
+    MVMObject *cont  = GET_REG(i->cur_op, 0).o;
+    MVMString *value = GET_REG(i->cur_op, 2).s;
+    i->cur_op += 4;
+    MVM_6model_container_assign_s(i->tc, cont, value);
+    goto NEXT(i);
+            }
+__code cbc_decont_i(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    MVMRegister *r = &GET_REG(i->cur_op, 0);
+    i->cur_op += 4;
+    MVM_6model_container_decont_i(i->tc, obj, r);
+    goto NEXT(i);
+            }
+__code cbc_decont_n(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    MVMRegister *r = &GET_REG(i->cur_op, 0);
+    i->cur_op += 4;
+    MVM_6model_container_decont_n(i->tc, obj, r);
+    goto NEXT(i);
+            }
+__code cbc_decont_s(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    MVMRegister *r = &GET_REG(i->cur_op, 0);
+    i->cur_op += 4;
+    MVM_6model_container_decont_s(i->tc, obj, r);
+    goto NEXT(i);
+            }
+__code cbc_getrusage(INTERP i){
+    MVM_proc_getrusage(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_threadlockcount(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_thread_lock_count(i->tc,
+        GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_getlexref_i(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nativeref_lex_i(i->tc,
+        GET_UI16(i->cur_op, 4), GET_UI16(i->cur_op, 2));
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_getlexref_n(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nativeref_lex_n(i->tc,
+        GET_UI16(i->cur_op, 4), GET_UI16(i->cur_op, 2));
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_getlexref_s(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nativeref_lex_s(i->tc,
+        GET_UI16(i->cur_op, 4), GET_UI16(i->cur_op, 2));
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_getlexref_ni(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nativeref_lex_name_i(i->tc,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)));
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_getlexref_nn(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nativeref_lex_name_n(i->tc,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)));
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_getlexref_ns(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nativeref_lex_name_s(i->tc,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)));
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_atposref_i(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nativeref_pos_i(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_atposref_n(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nativeref_pos_n(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_atposref_s(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nativeref_pos_s(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_getattrref_i(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nativeref_attr_i(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 6)));
+    i->cur_op += 12;
+    goto NEXT(i);
+}
+__code cbc_getattrref_n(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nativeref_attr_n(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 6)));
+    i->cur_op += 12;
+    goto NEXT(i);
+}
+__code cbc_getattrref_s(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nativeref_attr_s(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 6)));
+    i->cur_op += 12;
+    goto NEXT(i);
+}
+__code cbc_getattrsref_i(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nativeref_attr_i(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o,
+        GET_REG(i->cur_op, 6).s);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_getattrsref_n(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nativeref_attr_n(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o,
+        GET_REG(i->cur_op, 6).s);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_getattrsref_s(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nativeref_attr_s(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o,
+        GET_REG(i->cur_op, 6).s);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_nativecallsizeof(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_nativecall_sizeof(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_encodenorm(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "NYI");
+}
+__code cbc_normalizecodes(INTERP i){
+    MVM_unicode_normalize_codepoints(i->tc, GET_REG(i->cur_op, 0).o, GET_REG(i->cur_op, 4).o,
+        MVM_unicode_normalizer_form(i->tc, GET_REG(i->cur_op, 2).i64));
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_strfromcodes(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_unicode_codepoints_to_nfg_string(i->tc,
+        GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_strtocodes(INTERP i){
+    MVM_unicode_string_to_codepoints(i->tc, GET_REG(i->cur_op, 0).s,
+        MVM_unicode_normalizer_form(i->tc, GET_REG(i->cur_op, 2).i64),
+        GET_REG(i->cur_op, 4).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_getcodelocation(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_code_location(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_eqatim_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_equal_at_ignore_mark(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).s,
+        GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_ordbaseat(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_ord_basechar_at(i->tc, GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_neverrepossess(INTERP i){
+    MVM_6model_never_repossess(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_scdisclaim(INTERP i){
+    MVM_sc_disclaim(i->tc, (MVMSerializationContext *)GET_REG(i->cur_op, 0).o);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_atpos2d_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_repr_at_pos_2d_i(i->tc, GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).i64, GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_atpos2d_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = MVM_repr_at_pos_2d_n(i->tc, GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).i64, GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_atpos2d_s(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_repr_at_pos_2d_s(i->tc, GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).i64, GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_atpos2d_o(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_repr_at_pos_2d_o(i->tc, GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).i64, GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_atpos3d_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_repr_at_pos_3d_i(i->tc, GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).i64, GET_REG(i->cur_op, 6).i64, GET_REG(i->cur_op, 8).i64);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_atpos3d_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = MVM_repr_at_pos_3d_n(i->tc, GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).i64, GET_REG(i->cur_op, 6).i64, GET_REG(i->cur_op, 8).i64);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_atpos3d_s(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_repr_at_pos_3d_s(i->tc, GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).i64, GET_REG(i->cur_op, 6).i64, GET_REG(i->cur_op, 8).i64);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_atpos3d_o(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_repr_at_pos_3d_o(i->tc, GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).i64, GET_REG(i->cur_op, 6).i64, GET_REG(i->cur_op, 8).i64);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_atposnd_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_repr_at_pos_multidim_i(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_atposnd_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = MVM_repr_at_pos_multidim_n(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_atposnd_s(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_repr_at_pos_multidim_s(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_atposnd_o(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_repr_at_pos_multidim_o(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_bindpos2d_i(INTERP i){
+    MVM_repr_bind_pos_2d_i(i->tc, GET_REG(i->cur_op, 0).o,
+        GET_REG(i->cur_op, 2).i64, GET_REG(i->cur_op, 4).i64,
+        GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_bindpos2d_n(INTERP i){
+    MVM_repr_bind_pos_2d_n(i->tc, GET_REG(i->cur_op, 0).o,
+        GET_REG(i->cur_op, 2).i64, GET_REG(i->cur_op, 4).i64,
+        GET_REG(i->cur_op, 6).n64);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_bindpos2d_s(INTERP i){
+    MVM_repr_bind_pos_2d_s(i->tc, GET_REG(i->cur_op, 0).o,
+        GET_REG(i->cur_op, 2).i64, GET_REG(i->cur_op, 4).i64,
+        GET_REG(i->cur_op, 6).s);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_bindpos2d_o(INTERP i){
+    MVM_repr_bind_pos_2d_o(i->tc, GET_REG(i->cur_op, 0).o,
+        GET_REG(i->cur_op, 2).i64, GET_REG(i->cur_op, 4).i64,
+        GET_REG(i->cur_op, 6).o);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_bindpos3d_i(INTERP i){
+    MVM_repr_bind_pos_3d_i(i->tc, GET_REG(i->cur_op, 0).o,
+        GET_REG(i->cur_op, 2).i64, GET_REG(i->cur_op, 4).i64,
+        GET_REG(i->cur_op, 6).i64, GET_REG(i->cur_op, 8).i64);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_bindpos3d_n(INTERP i){
+    MVM_repr_bind_pos_3d_n(i->tc, GET_REG(i->cur_op, 0).o,
+        GET_REG(i->cur_op, 2).i64, GET_REG(i->cur_op, 4).i64,
+        GET_REG(i->cur_op, 6).i64, GET_REG(i->cur_op, 8).n64);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_bindpos3d_s(INTERP i){
+    MVM_repr_bind_pos_3d_s(i->tc, GET_REG(i->cur_op, 0).o,
+        GET_REG(i->cur_op, 2).i64, GET_REG(i->cur_op, 4).i64,
+        GET_REG(i->cur_op, 6).i64, GET_REG(i->cur_op, 8).s);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_bindpos3d_o(INTERP i){
+    MVM_repr_bind_pos_3d_o(i->tc, GET_REG(i->cur_op, 0).o,
+        GET_REG(i->cur_op, 2).i64, GET_REG(i->cur_op, 4).i64,
+        GET_REG(i->cur_op, 6).i64, GET_REG(i->cur_op, 8).o);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_bindposnd_i(INTERP i){
+    MVM_repr_bind_pos_multidim_i(i->tc, GET_REG(i->cur_op, 0).o,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_bindposnd_n(INTERP i){
+    MVM_repr_bind_pos_multidim_n(i->tc, GET_REG(i->cur_op, 0).o,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).n64);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_bindposnd_s(INTERP i){
+    MVM_repr_bind_pos_multidim_s(i->tc, GET_REG(i->cur_op, 0).o,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).s);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_bindposnd_o(INTERP i){
+    MVM_repr_bind_pos_multidim_o(i->tc, GET_REG(i->cur_op, 0).o,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_dimensions(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_repr_dimensions(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_setdimensions(INTERP i){
+    MVM_repr_set_dimensions(i->tc, GET_REG(i->cur_op, 0).o, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_numdimensions(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_repr_num_dimensions(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_ctxcode(INTERP i){
+    MVMObject *this_ctx = GET_REG(i->cur_op, 2).o;
+    if (IS_CONCRETE(this_ctx) && REPR(this_ctx)->ID == MVM_REPR_ID_MVMContext) {
+        MVMObject *code_obj = ((MVMContext *)this_ctx)->body.context->code_ref;
+        GET_REG(i->cur_op, 0).o = code_obj ? code_obj : i->tc->instance->VMNull;
+        i->cur_op += 4;
+    }
+    else {
+        MVM_exception_throw_adhoc(i->tc, "ctxcode needs an MVMContext");
+    }
+    goto NEXT(i);
+            }
+__code cbc_isrwcont(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    MVMint64 is_rw = 0;
+    if (!MVM_is_null(i->tc, obj)) {
+        const MVMContainerSpec *cs = STABLE(obj)->container_spec;
+        is_rw = cs && cs->can_store(i->tc, obj);
+    }
+    GET_REG(i->cur_op, 0).i64 = is_rw;
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_fc(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_string_fc(i->tc, GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_encoderep(INTERP i){
+    GET_REG(i->cur_op, 8).o = MVM_string_encode_to_buf(i->tc, GET_REG(i->cur_op, 2).s,
+        GET_REG(i->cur_op, 4).s, GET_REG(i->cur_op, 8).o, GET_REG(i->cur_op, 6).s);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_istty_fh(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_io_is_tty(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_multidimref_i(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nativeref_multidim_i(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_multidimref_n(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nativeref_multidim_n(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_multidimref_s(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nativeref_multidim_s(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_fileno_fh(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_io_fileno(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_asyncudp(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_io_socket_udp_async(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o, GET_REG(i->cur_op, 6).s,
+        GET_REG(i->cur_op, 8).i64, GET_REG(i->cur_op, 10).i64,
+        GET_REG(i->cur_op, 12).o);
+    i->cur_op += 14;
+    goto NEXT(i);
+}
+__code cbc_asyncwritebytesto(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_io_write_bytes_to_async(i->tc, GET_REG(i->cur_op, 2).o,
+        GET_REG(i->cur_op, 4).o, GET_REG(i->cur_op, 6).o, GET_REG(i->cur_op, 8).o,
+        GET_REG(i->cur_op, 10).o, GET_REG(i->cur_op, 12).s, GET_REG(i->cur_op, 14).i64);
+    i->cur_op += 16;
+    goto NEXT(i);
+}
+__code cbc_objprimbits(INTERP i){
+    MVMObject *type = GET_REG(i->cur_op, 2).o;
+    if (type) {
+        const MVMStorageSpec *ss = REPR(type)->get_storage_spec(i->tc, STABLE(type));
+        GET_REG(i->cur_op, 0).i64 = ss->boxed_primitive ? ss->bits : 0;
+    }
+    else {
+        GET_REG(i->cur_op, 0).i64 = 0;
+    }
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_objprimunsigned(INTERP i){
+    MVMObject *type = GET_REG(i->cur_op, 2).o;
+    if (type) {
+        const MVMStorageSpec *ss = REPR(type)->get_storage_spec(i->tc, STABLE(type));
+        GET_REG(i->cur_op, 0).i64 = ss->boxed_primitive == 1 ? ss->is_unsigned : 0;
+    }
+    else {
+        GET_REG(i->cur_op, 0).i64 = 0;
+    }
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_getlexref_i32(INTERP i){
+    goto cbc_getlexref_i16(i);
+}
+__code cbc_getlexref_i16(INTERP i){
+    goto cbc_getlexref_i8(i);
+}
+__code cbc_getlexref_i8(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nativeref_lex_i(i->tc,
+        GET_UI16(i->cur_op, 4), GET_UI16(i->cur_op, 2));
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_getlexref_n32(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_nativeref_lex_n(i->tc,
+        GET_UI16(i->cur_op, 4), GET_UI16(i->cur_op, 2));
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_box_u(INTERP i){
+    MVM_box_uint(i->tc, GET_REG(i->cur_op, 2).u64, GET_REG(i->cur_op, 4).o,
+                &GET_REG(i->cur_op, 0));
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_unbox_u(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    if (!IS_CONCRETE(obj))
+        MVM_exception_throw_adhoc(i->tc, "Cannot unbox a type object");
+    GET_REG(i->cur_op, 0).u64 = REPR(obj)->box_funcs.get_uint(i->tc,
+        STABLE(obj), obj, OBJECT_BODY(obj));
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_coerce_iu(INTERP i){
+    GET_REG(i->cur_op, 0).u64 = (MVMuint64)GET_REG(i->cur_op, 2).i64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_coerce_ui(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = (MVMint64)GET_REG(i->cur_op, 2).u64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_coerce_nu(INTERP i){
+    GET_REG(i->cur_op, 0).u64 = (MVMuint64)GET_REG(i->cur_op, 2).n64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_coerce_un(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = (MVMnum64)GET_REG(i->cur_op, 2).u64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_decont_u(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    MVMRegister *r = &GET_REG(i->cur_op, 0);
+    i->cur_op += 4;
+    MVM_6model_container_decont_u(i->tc, obj, r);
+    goto NEXT(i);
+            }
+__code cbc_getlexref_u(INTERP i){
+    goto cbc_getlexref_u32(i);
+}
+__code cbc_getlexref_u32(INTERP i){
+    goto cbc_getlexref_u16(i);
+}
+__code cbc_getlexref_u16(INTERP i){
+    goto cbc_getlexref_u8(i);
+}
+__code cbc_getlexref_u8(INTERP i){
+    /* XXX Cheat should have a _u here. */
+    GET_REG(i->cur_op, 0).o = MVM_nativeref_lex_i(i->tc,
+        GET_UI16(i->cur_op, 4), GET_UI16(i->cur_op, 2));
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_param_rp_u(INTERP i){
+    GET_REG(i->cur_op, 0).u64 = MVM_args_get_pos_uint(i->tc, &i->tc->cur_frame->params,
+        GET_UI16(i->cur_op, 2), MVM_ARG_REQUIRED).arg.u64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_param_op_u(INTERP i){
+    MVMArgInfo param = MVM_args_get_pos_uint(i->tc, &i->tc->cur_frame->params,
+        GET_UI16(i->cur_op, 2), MVM_ARG_OPTIONAL);
+    if (param.exists) {
+        GET_REG(i->cur_op, 0).u64 = param.arg.u64;
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 4);
+    }
+    else {
+        i->cur_op += 8;
+    }
+    goto NEXT(i);
+            }
+__code cbc_param_rn_u(INTERP i){
+    GET_REG(i->cur_op, 0).u64 = MVM_args_get_named_uint(i->tc, &i->tc->cur_frame->params,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_ARG_REQUIRED).arg.u64;
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_param_on_u(INTERP i){
+    MVMArgInfo param = MVM_args_get_named_uint(i->tc, &i->tc->cur_frame->params,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_ARG_OPTIONAL);
+    if (param.exists) {
+        GET_REG(i->cur_op, 0).u64 = param.arg.u64;
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 6);
+    }
+    else {
+        i->cur_op += 10;
+    }
+    goto NEXT(i);
+            }
+__code cbc_param_rn2_u(INTERP i){
+    MVMArgInfo param = MVM_args_get_named_uint(i->tc, &i->tc->cur_frame->params,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_ARG_OPTIONAL);
+    if (param.exists)
+        GET_REG(i->cur_op, 0).u64 = param.arg.u64;
+    else
+        GET_REG(i->cur_op, 0).u64 = MVM_args_get_named_uint(i->tc, &i->tc->cur_frame->params,
+            MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 6)), MVM_ARG_REQUIRED).arg.u64;
+    i->cur_op += 10;
+    goto NEXT(i);
+            }
+__code cbc_param_on2_u(INTERP i){
+    MVMArgInfo param = MVM_args_get_named_uint(i->tc, &i->tc->cur_frame->params,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_ARG_OPTIONAL);
+    if (!param.exists)
+        param = MVM_args_get_named_uint(i->tc, &i->tc->cur_frame->params,
+            MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 6)), MVM_ARG_OPTIONAL);
+    if (param.exists) {
+        GET_REG(i->cur_op, 0).u64 = param.arg.u64;
+        i->cur_op = bytecode_start + GET_UI32(i->cur_op, 10);
+    }
+    else {
+        i->cur_op += 14;
+    }
+    goto NEXT(i);
+            }
+__code cbc_stat_time(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = MVM_file_time(i->tc, GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).i64, 0);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_lstat_time(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = MVM_file_time(i->tc, GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).i64, 1);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_setdebugtypename(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    if (MVM_string_graphs(i->tc, GET_REG(i->cur_op, 2).s)) {
+        char *debugname = MVM_string_utf8_encode_C_string(i->tc, GET_REG(i->cur_op, 2).s);
+        if (STABLE(obj)->debug_name) {
+            MVM_free(STABLE(obj)->debug_name);
+        }
+        STABLE(obj)->debug_name = debugname;
+    } else {
+        STABLE(obj)->debug_name = NULL;
+    }
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_throwpayloadlex(INTERP i){
+    MVMRegister *rr      = &GET_REG(i->cur_op, 0);
+    MVMuint32    cat     = (MVMuint32)MVM_BC_get_I64(i->cur_op, 2);
+    MVMObject   *payload = GET_REG(i->cur_op, 10).o;
+    i->cur_op += 12;
+    MVM_exception_throwpayload(i->tc, MVM_EX_THROW_LEX, cat, payload, rr);
+    goto NEXT(i);
+            }
+__code cbc_throwpayloadlexcaller(INTERP i){
+    MVMRegister *rr      = &GET_REG(i->cur_op, 0);
+    MVMuint32    cat     = (MVMuint32)MVM_BC_get_I64(i->cur_op, 2);
+    MVMObject   *payload = GET_REG(i->cur_op, 10).o;
+    i->cur_op += 12;
+    MVM_exception_throwpayload(i->tc, MVM_EX_THROW_LEX_CALLER, cat, payload, rr);
+    goto NEXT(i);
+            }
+__code cbc_lastexpayload(INTERP i){
+    GET_REG(i->cur_op, 0).o = i->tc->last_payload;
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_cancelnotify(INTERP i){
+    MVM_io_eventloop_cancel_work(i->tc, GET_REG(i->cur_op, 0).o,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_decoderconfigure(INTERP i){
+    MVMObject *decoder = GET_REG(i->cur_op, 0).o;
+    MVM_decoder_ensure_decoder(i->tc, decoder, "decoderconfigure");
+    MVM_decoder_configure(i->tc, (MVMDecoder *)decoder,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_decodersetlineseps(INTERP i){
+    MVMObject *decoder = GET_REG(i->cur_op, 0).o;
+    MVM_decoder_ensure_decoder(i->tc, decoder, "decodersetlineseps");
+    MVM_decoder_set_separators(i->tc, (MVMDecoder *)decoder, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_decoderaddbytes(INTERP i){
+    MVMObject *decoder = GET_REG(i->cur_op, 0).o;
+    MVM_decoder_ensure_decoder(i->tc, decoder, "decoderaddbytes");
+    MVM_decoder_add_bytes(i->tc, (MVMDecoder *)decoder, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_decodertakechars(INTERP i){
+    MVMObject *decoder = GET_REG(i->cur_op, 2).o;
+    MVM_decoder_ensure_decoder(i->tc, decoder, "decodertakechars");
+    GET_REG(i->cur_op, 0).s = MVM_decoder_take_chars(i->tc, (MVMDecoder *)decoder,
+        GET_REG(i->cur_op, 4).i64, 0);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_indexim_s(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_string_index_ignore_mark(i->tc,
+        GET_REG(i->cur_op, 2).s, GET_REG(i->cur_op, 4).s, GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_decodertakeallchars(INTERP i){
+    MVMObject *decoder = GET_REG(i->cur_op, 2).o;
+    MVM_decoder_ensure_decoder(i->tc, decoder, "decodertakeallchars");
+    GET_REG(i->cur_op, 0).s = MVM_decoder_take_all_chars(i->tc, (MVMDecoder *)decoder);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_decodertakeavailablechars(INTERP i){
+    MVMObject *decoder = GET_REG(i->cur_op, 2).o;
+    MVM_decoder_ensure_decoder(i->tc, decoder, "decodertakeavailablechars");
+    GET_REG(i->cur_op, 0).s = MVM_decoder_take_available_chars(i->tc, (MVMDecoder *)decoder);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_decodertakeline(INTERP i){
+    MVMObject *decoder = GET_REG(i->cur_op, 2).o;
+    MVM_decoder_ensure_decoder(i->tc, decoder, "decodertakeline");
+    GET_REG(i->cur_op, 0).s = MVM_decoder_take_line(i->tc, (MVMDecoder *)decoder,
+        GET_REG(i->cur_op, 4).i64, GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_decoderbytesavailable(INTERP i){
+    MVMObject *decoder = GET_REG(i->cur_op, 2).o;
+    MVM_decoder_ensure_decoder(i->tc, decoder, "decoderbytesavailable");
+    GET_REG(i->cur_op, 0).i64 = MVM_decoder_bytes_available(i->tc, (MVMDecoder *)decoder);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_decodertakebytes(INTERP i){
+    MVMObject *decoder = GET_REG(i->cur_op, 2).o;
+    MVM_decoder_ensure_decoder(i->tc, decoder, "decodertakebytes");
+    GET_REG(i->cur_op, 0).o = MVM_decoder_take_bytes(i->tc, (MVMDecoder *)decoder,
+        GET_REG(i->cur_op, 4).o, GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_decoderempty(INTERP i){
+    MVMObject *decoder = GET_REG(i->cur_op, 2).o;
+    MVM_decoder_ensure_decoder(i->tc, decoder, "decoderempty");
+    GET_REG(i->cur_op, 0).i64 = MVM_decoder_empty(i->tc, (MVMDecoder *)decoder);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_indexingoptimized(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_string_indexing_optimized(i->tc, GET_REG(i->cur_op, 2).s);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_captureinnerlex(INTERP i){
+    MVM_frame_capture_inner(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_setdispatcherfor(INTERP i){
+    MVMObject *disp_for = GET_REG(i->cur_op, 2).o;
+    i->tc->cur_dispai->tcher = GET_REG(i->cur_op, 0).o;
+    i->tc->cur_dispai->tcher_for = REPR(disp_for)->ID == MVM_REPR_ID_MVMCode
+        ? disp_for
+        : MVM_frame_find_invokee(i->tc, disp_for, NULL);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_cpucores(INTERP i){
+    GET_REG(i->cur_op, 0).i32 = MVM_platform_cpu_count();
+    i->cur_op += 2;
+    goto NEXT(i);
+            }
+__code cbc_decodertakecharseof(INTERP i){
+    MVMObject *decoder = GET_REG(i->cur_op, 2).o;
+    MVM_decoder_ensure_decoder(i->tc, decoder, "decodertakecharseof");
+    GET_REG(i->cur_op, 0).s = MVM_decoder_take_chars(i->tc, (MVMDecoder *)decoder,
+        GET_REG(i->cur_op, 4).i64, 1);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_cas_o(INTERP i){
+    MVMRegister *result = &GET_REG(i->cur_op, 0);
+    MVMObject *target = GET_REG(i->cur_op, 2).o;
+    MVMObject *expected = GET_REG(i->cur_op, 4).o;
+    MVMObject *value = GET_REG(i->cur_op, 6).o;
+    i->cur_op += 8;
+    MVM_6model_container_cas(i->tc, target, expected, value, result);
+    goto NEXT(i);
+            }
+__code cbc_cas_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_6model_container_cas_i(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).i64,
+        GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_atomicinc_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_6model_container_atomic_inc(i->tc,
+        GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_atomicdec_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_6model_container_atomic_dec(i->tc,
+        GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_atomicadd_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_6model_container_atomic_add(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).i64);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_atomicload_o(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_6model_container_atomic_load(i->tc,
+        GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_atomicload_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_6model_container_atomic_load_i(i->tc,
+        GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_atomicstore_o(INTERP i){
+    MVMObject *target = GET_REG(i->cur_op, 0).o;
+    MVMObject *value = GET_REG(i->cur_op, 2).o;
+    i->cur_op += 4;
+    MVM_6model_container_atomic_store(i->tc, target, value);
+    goto NEXT(i);
+            }
+__code cbc_atomicstore_i(INTERP i){
+    MVM_6model_container_atomic_store_i(i->tc, GET_REG(i->cur_op, 0).o,
+        GET_REG(i->cur_op, 2).i64);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_barrierfull(INTERP i){
+    MVM_barrier();
+    goto NEXT(i);
+}
+__code cbc_nativeinvoke_v(INTERP i){
+    i->tc->cur_frame->return_value = NULL;
+    i->tc->cur_frame->return_type = MVM_RETURN_VOID;
+    MVM_nativecall_invoke_jit(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_nativeinvoke_i(INTERP i){
+    i->tc->cur_frame->return_value = &GET_REG(i->cur_op, 0);
+    i->tc->cur_frame->return_type = MVM_RETURN_INT;
+    MVM_nativecall_invoke_jit(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_nativeinvoke_n(INTERP i){
+    i->tc->cur_frame->return_value = &GET_REG(i->cur_op, 0);
+    i->tc->cur_frame->return_type = MVM_RETURN_NUM;
+    MVM_nativecall_invoke_jit(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_nativeinvoke_s(INTERP i){
+    i->tc->cur_frame->return_value = &GET_REG(i->cur_op, 0);
+    i->tc->cur_frame->return_type = MVM_RETURN_STR;
+    MVM_nativecall_invoke_jit(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_nativeinvoke_o(INTERP i){
+    i->tc->cur_frame->return_value = &GET_REG(i->cur_op, 0);
+    i->tc->cur_frame->return_type = MVM_RETURN_OBJ;
+    MVM_nativecall_invoke_jit(i->tc, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_getarg_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = i->tc->cur_frame->args[GET_REG(i->cur_op, 2).u16].i64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_getarg_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = i->tc->cur_frame->args[GET_REG(i->cur_op, 2).u16].n64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_getarg_s(INTERP i){
+    GET_REG(i->cur_op, 0).s = i->tc->cur_frame->args[GET_REG(i->cur_op, 2).u16].s;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_getarg_o(INTERP i){
+    GET_REG(i->cur_op, 0).o = i->tc->cur_frame->args[GET_REG(i->cur_op, 2).u16].o;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_coerce_II(INTERP i){
+    MVMObject *   const type = GET_REG(i->cur_op, 4).o;
+    GET_REG(i->cur_op, 0).o = MVM_bigint_from_bigint(i->tc, type, GET_REG(i->cur_op, 2).o);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_encoderepconf(INTERP i){
+    GET_REG(i->cur_op, 8).o = MVM_string_encode_to_buf_config(i->tc, GET_REG(i->cur_op, 2).s,
+        GET_REG(i->cur_op, 4).s, GET_REG(i->cur_op, 8).o, GET_REG(i->cur_op, 6).s, GET_REG(i->cur_op, 10).i64);
+    i->cur_op += 12;
+    goto NEXT(i);
+}
+__code cbc_encodeconf(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_string_encode_to_buf_config(i->tc, GET_REG(i->cur_op, 2).s,
+        GET_REG(i->cur_op, 4).s, GET_REG(i->cur_op, 6).o, NULL, GET_REG(i->cur_op, 8).i64);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_decodeconf(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_string_decode_from_buf_config(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).s, NULL, GET_REG(i->cur_op, 6).i64);
+    i->cur_op += 8;
+    goto NEXT(i);
+}
+__code cbc_decoderepconf(INTERP i){
+    GET_REG(i->cur_op, 0).s = MVM_string_decode_from_buf_config(i->tc,
+        GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).s, GET_REG(i->cur_op, 6).s, GET_REG(i->cur_op, 8).i64);
+    i->cur_op += 10;
+    goto NEXT(i);
+}
+__code cbc_getppid(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_proc_getppid(i->tc);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_getsignals(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_io_get_signals(i->tc);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_sp_guard(INTERP i){
+    MVMObject *check = GET_REG(i->cur_op, 0).o;
+    MVMSTable *want  = (MVMSTable *)i->tc->cur_frame
+        ->effective_spesh_slots[GET_UI16(i->cur_op, 2)];
+    i->cur_op += 8;
+    if (!check || STABLE(check) != want)
+        MVM_spesh_deopt_one(i->tc, GET_UI32(i->cur_op, -4));
+    goto NEXT(i);
+            }
+__code cbc_sp_guardconc(INTERP i){
+    MVMObject *check = GET_REG(i->cur_op, 0).o;
+    MVMSTable *want  = (MVMSTable *)i->tc->cur_frame
+        ->effective_spesh_slots[GET_UI16(i->cur_op, 2)];
+    i->cur_op += 8;
+    if (!check || !IS_CONCRETE(check) || STABLE(check) != want)
+        MVM_spesh_deopt_one(i->tc, GET_UI32(i->cur_op, -4));
+    goto NEXT(i);
+            }
+__code cbc_sp_guardtype(INTERP i){
+    MVMObject *check = GET_REG(i->cur_op, 0).o;
+    MVMSTable *want  = (MVMSTable *)i->tc->cur_frame
+        ->effective_spesh_slots[GET_UI16(i->cur_op, 2)];
+    i->cur_op += 8;
+    if (!check || IS_CONCRETE(check) || STABLE(check) != want)
+        MVM_spesh_deopt_one(i->tc, GET_UI32(i->cur_op, -4));
+    goto NEXT(i);
+            }
+__code cbc_sp_guardsf(INTERP i){
+    MVMObject *check = GET_REG(i->cur_op, 0).o;
+    MVMStaticFrame *want = (MVMStaticFrame *)i->tc->cur_frame
+        ->effective_spesh_slots[GET_UI16(i->cur_op, 2)];
+    i->cur_op += 8;
+    if (REPR(check)->ID != MVM_REPR_ID_MVMCode ||
+            ((MVMCode *)check)->body.sf != want)
+        MVM_spesh_deopt_one(i->tc, GET_UI32(i->cur_op, -4));
+    goto NEXT(i);
+            }
+__code cbc_sp_guardsfouter(INTERP i){
+    MVMObject *check = GET_REG(i->cur_op, 0).o;
+    MVMStaticFrame *want = (MVMStaticFrame *)i->tc->cur_frame
+        ->effective_spesh_slots[GET_UI16(i->cur_op, 2)];
+    i->cur_op += 8;
+    if (REPR(check)->ID != MVM_REPR_ID_MVMCode ||
+            ((MVMCode *)check)->body.sf != want ||
+            ((MVMCode *)check)->body.outer != i->tc->cur_frame)
+        MVM_spesh_deopt_one(i->tc, GET_UI32(i->cur_op, -4));
+    goto NEXT(i);
+            }
+__code cbc_sp_rebless(INTERP i){
+    if (!REPR(GET_REG(i->cur_op, 2).o)->change_type) {
+        MVM_exception_throw_adhoc(i->tc, "This REPR cannot change type");
+    }
+    REPR(GET_REG(i->cur_op, 2).o)->change_type(i->tc, GET_REG(i->cur_op, 2).o, GET_REG(i->cur_op, 4).o);
+    GET_REG(i->cur_op, 0).o = GET_REG(i->cur_op, 2).o;
+    MVM_SC_WB_OBJ(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 10;
+    MVM_spesh_deopt_all(i->tc);
+    MVM_spesh_deopt_one(i->tc, GET_UI32(i->cur_op, -4));
+    goto NEXT(i);
+}
+__code cbc_sp_resolvecode(INTERP i){
+    GET_REG(i->cur_op, 0).o = MVM_frame_resolve_invokee_spesh(i->tc,
+        GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_sp_decont(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    MVMRegister *r = &GET_REG(i->cur_op, 0);
+    i->cur_op += 4;
+    if (obj && IS_CONCRETE(obj) && STABLE(obj)->container_spec)
+        STABLE(obj)->container_spec->fei->tch(i->tc, obj, r);
+    else
+        r->o = obj;
+    goto NEXT(i);
+            }
+__code cbc_sp_getlex_o(INTERP i){
+    MVMFrame *f = i->tc->cur_frame;
+    MVMuint16 idx = GET_UI16(i->cur_op, 2);
+    MVMuint16 outers = GET_UI16(i->cur_op, 4);
+    MVMRegister found;
+    while (outers) {
+        if (!f->outer)
+            MVM_exception_throw_adhoc(i->tc, "getlex: outer index out of range");
+        f = f->outer;
+        outers--;
+    }
+    found = GET_LEX(i->cur_op, 2, f);
+    GET_REG(i->cur_op, 0).o = found.o == NULL
+        ? MVM_frame_vivify_lexical(i->tc, f, idx)
+        : found.o;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_getlex_ins(INTERP i){
+    MVMFrame *f = i->tc->cur_frame;
+    MVMuint16 idx = GET_UI16(i->cur_op, 2);
+    MVMuint16 outers = GET_UI16(i->cur_op, 4);
+    while (outers) {
+        if (!f->outer)
+            MVM_exception_throw_adhoc(i->tc, "getlex: outer index out of range");
+        f = f->outer;
+        outers--;
+    }
+    GET_REG(i->cur_op, 0) = GET_LEX(i->cur_op, 2, f);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_getlex_no(INTERP i){
+    MVMRegister *found = MVM_frame_find_lexical_by_name(i->tc,
+        MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 2)), MVM_reg_obj);
+    GET_REG(i->cur_op, 0).o = found ? found->o : i->tc->instance->VMNull;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_getarg_o(INTERP i){
+    GET_REG(i->cur_op, 0).o = i->tc->cur_frame->params.args[GET_UI16(i->cur_op, 2)].o;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_sp_getarg_i(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = i->tc->cur_frame->params.args[GET_UI16(i->cur_op, 2)].i64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_sp_getarg_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = i->tc->cur_frame->params.args[GET_UI16(i->cur_op, 2)].n64;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_sp_getarg_s(INTERP i){
+    GET_REG(i->cur_op, 0).s = i->tc->cur_frame->params.args[GET_UI16(i->cur_op, 2)].s;
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_sp_fastinvoke_v(INTERP i){
+    MVMCode     *code       = (MVMCode *)GET_REG(i->cur_op, 0).o;
+    MVMRegister *args       = i->tc->cur_frame->args;
+    MVMint32     spesh_cand = GET_UI16(i->cur_op, 2);
+    i->tc->cur_frame->return_value = NULL;
+    i->tc->cur_frame->return_type  = MVM_RETURN_VOID;
+    i->cur_op += 4;
+    i->tc->cur_frame->return_address = i->cur_op;
+    MVM_frame_invoke(i->tc, code->body.sf, i->cur_callsite, args,
+        code->body.outer, (MVMObject *)code, spesh_cand);
+    goto NEXT(i);
+            }
+__code cbc_sp_fastinvoke_i(INTERP i){
+    MVMCode     *code       = (MVMCode *)GET_REG(i->cur_op, 2).o;
+    MVMRegister *args       = i->tc->cur_frame->args;
+    MVMint32     spesh_cand = GET_UI16(i->cur_op, 4);
+    i->tc->cur_frame->return_value = &GET_REG(i->cur_op, 0);
+    i->tc->cur_frame->return_type  = MVM_RETURN_INT;
+    i->cur_op += 6;
+    i->tc->cur_frame->return_address = i->cur_op;
+    MVM_frame_invoke(i->tc, code->body.sf, i->cur_callsite, args,
+        code->body.outer, (MVMObject *)code, spesh_cand);
+    goto NEXT(i);
+            }
+__code cbc_sp_fastinvoke_n(INTERP i){
+    MVMCode     *code       = (MVMCode *)GET_REG(i->cur_op, 2).o;
+    MVMRegister *args       = i->tc->cur_frame->args;
+    MVMint32     spesh_cand = GET_UI16(i->cur_op, 4);
+    i->tc->cur_frame->return_value = &GET_REG(i->cur_op, 0);
+    i->tc->cur_frame->return_type  = MVM_RETURN_NUM;
+    i->cur_op += 6;
+    i->tc->cur_frame->return_address = i->cur_op;
+    MVM_frame_invoke(i->tc, code->body.sf, i->cur_callsite, args,
+        code->body.outer, (MVMObject *)code, spesh_cand);
+    goto NEXT(i);
+            }
+__code cbc_sp_fastinvoke_s(INTERP i){
+    MVMCode     *code       = (MVMCode *)GET_REG(i->cur_op, 2).o;
+    MVMRegister *args       = i->tc->cur_frame->args;
+    MVMint32     spesh_cand = GET_UI16(i->cur_op, 4);
+    i->tc->cur_frame->return_value = &GET_REG(i->cur_op, 0);
+    i->tc->cur_frame->return_type  = MVM_RETURN_STR;
+    i->cur_op += 6;
+    i->tc->cur_frame->return_address = i->cur_op;
+    MVM_frame_invoke(i->tc, code->body.sf, i->cur_callsite, args,
+        code->body.outer, (MVMObject *)code, spesh_cand);
+    goto NEXT(i);
+            }
+__code cbc_sp_fastinvoke_o(INTERP i){
+    MVMCode     *code       = (MVMCode *)GET_REG(i->cur_op, 2).o;
+    MVMRegister *args       = i->tc->cur_frame->args;
+    MVMint32     spesh_cand = GET_UI16(i->cur_op, 4);
+    i->tc->cur_frame->return_value = &GET_REG(i->cur_op, 0);
+    i->tc->cur_frame->return_type  = MVM_RETURN_OBJ;
+    i->cur_op += 6;
+    i->tc->cur_frame->return_address = i->cur_op;
+    MVM_frame_invoke(i->tc, code->body.sf, i->cur_callsite, args,
+        code->body.outer, (MVMObject *)code, spesh_cand);
+    goto NEXT(i);
+            }
+__code cbc_sp_paramnamesused(INTERP i){
+    MVM_args_throw_named_unused_error(i->tc, (MVMString *)i->tc->cur_frame
+        ->effective_spesh_slots[GET_UI16(i->cur_op, 0)]);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_sp_getspeshslot(INTERP i){
+    GET_REG(i->cur_op, 0).o = (MVMObject *)i->tc->cur_frame
+        ->effective_spesh_slots[GET_UI16(i->cur_op, 2)];
+    i->cur_op += 4;
+    goto NEXT(i);
+}
+__code cbc_sp_findmeth(INTERP i){
+    /* Obtain object and cache index; see if we get a mai->tch. */
+    MVMObject *obj = GET_REG(i->cur_op, 2).o;
+    MVMuint16  idx = GET_UI16(i->cur_op, 8);
+    if ((MVMSTable *)i->tc->cur_frame->effective_spesh_slots[idx] == STABLE(obj)) {
+        GET_REG(i->cur_op, 0).o = (MVMObject *)i->tc->cur_frame->effective_spesh_slots[idx + 1];
+        i->cur_op += 10;
+    }
+    else {
+        /* May invoke, so pre-increment op counter */
+        MVMString *name = MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 4));
+        MVMRegister *res = &GET_REG(i->cur_op, 0);
+        i->cur_op += 10;
+        MVM_6model_find_method_spesh(i->tc, obj, name, idx, res);
+
+    }
+    goto NEXT(i);
+            }
+__code cbc_sp_fastcreate(INTERP i){
+    /* Assume we're in normal code, so doing a nursery allocation.
+     * Also, that there is no initialize. */
+    MVMuint16 size       = GET_UI16(i->cur_op, 2);
+    MVMObject *obj       = MVM_gc_allocate_zeroed(i->tc, size);
+    obj->st              = (MVMSTable *)i->tc->cur_frame->effective_spesh_slots[GET_UI16(i->cur_op, 4)];
+    obj->header.size     = size;
+    obj->header.owner    = i->tc->thread_id;
+    GET_REG(i->cur_op, 0).o = obj;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_get_o(INTERP i){
+    MVMObject *val = ((MVMObject *)((char *)GET_REG(i->cur_op, 2).o + GET_UI16(i->cur_op, 4)));
+    GET_REG(i->cur_op, 0).o = val ? val : i->tc->instance->VMNull;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_get_i64(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = *((MVMint64 *)((char *)GET_REG(i->cur_op, 2).o + GET_UI16(i->cur_op, 4)));
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_sp_get_i32(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = *((MVMint32 *)((char *)GET_REG(i->cur_op, 2).o + GET_UI16(i->cur_op, 4)));
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_sp_get_i16(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = *((MVMint16 *)((char *)GET_REG(i->cur_op, 2).o + GET_UI16(i->cur_op, 4)));
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_sp_get_i8(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = *((MVMint8 *)((char *)GET_REG(i->cur_op, 2).o + GET_UI16(i->cur_op, 4)));
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_sp_get_n(INTERP i){
+    GET_REG(i->cur_op, 0).n64 = *((MVMnum64 *)((char *)GET_REG(i->cur_op, 2).o + GET_UI16(i->cur_op, 4)));
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_sp_get_s(INTERP i){
+    GET_REG(i->cur_op, 0).s = ((MVMString *)((char *)GET_REG(i->cur_op, 2).o + GET_UI16(i->cur_op, 4)));
+    i->cur_op += 6;
+    goto NEXT(i);
+}
+__code cbc_sp_bind_o(INTERP i){
+    MVMObject *o     = GET_REG(i->cur_op, 0).o;
+    MVMObject *value = GET_REG(i->cur_op, 4).o;
+    MVM_ASSIGN_REF(i->tc, &(o->header), *((MVMObject **)((char *)o + GET_UI16(i->cur_op, 2))), value);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_bind_i64(INTERP i){
+    MVMObject *o     = GET_REG(i->cur_op, 0).o;
+    *((MVMint64 *)((char *)o + GET_UI16(i->cur_op, 2))) = GET_REG(i->cur_op, 4).i64;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_bind_i32(INTERP i){
+    MVMObject *o     = GET_REG(i->cur_op, 0).o;
+    *((MVMint32 *)((char *)o + GET_UI16(i->cur_op, 2))) = GET_REG(i->cur_op, 4).i64;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_bind_i16(INTERP i){
+    MVMObject *o     = GET_REG(i->cur_op, 0).o;
+    *((MVMint16 *)((char *)o + GET_UI16(i->cur_op, 2))) = GET_REG(i->cur_op, 4).i64;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_bind_i8(INTERP i){
+    MVMObject *o     = GET_REG(i->cur_op, 0).o;
+    *((MVMint8 *)((char *)o + GET_UI16(i->cur_op, 2))) = GET_REG(i->cur_op, 4).i64;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_bind_n(INTERP i){
+    MVMObject *o     = GET_REG(i->cur_op, 0).o;
+    *((MVMnum64 *)((char *)o + GET_UI16(i->cur_op, 2))) = GET_REG(i->cur_op, 4).n64;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_bind_s(INTERP i){
+    MVMObject *o     = GET_REG(i->cur_op, 0).o;
+    MVMString *value = GET_REG(i->cur_op, 4).s;
+    MVM_ASSIGN_REF(i->tc, &(o->header), *((MVMObject **)((char *)o + GET_UI16(i->cur_op, 2))), value);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_p6oget_o(INTERP i){
+    MVMObject *o     = GET_REG(i->cur_op, 2).o;
+    MVMObject *val = MVM_p6opaque_read_object(i->tc, o, GET_UI16(i->cur_op, 4));
+    GET_REG(i->cur_op, 0).o = val ? val : i->tc->instance->VMNull;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_p6ogetvt_o(INTERP i){
+    MVMObject *o     = GET_REG(i->cur_op, 2).o;
+    char      *data  = MVM_p6opaque_real_data(i->tc, OBJECT_BODY(o));
+    MVMObject *val   = *((MVMObject **)(data + GET_UI16(i->cur_op, 4)));
+    if (!val) {
+        val = (MVMObject *)i->tc->cur_frame->effective_spesh_slots[GET_UI16(i->cur_op, 6)];
+        MVM_ASSIGN_REF(i->tc, &(o->header), *((MVMObject **)(data + GET_UI16(i->cur_op, 4))), val);
+    }
+    GET_REG(i->cur_op, 0).o = val;
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_sp_p6ogetvc_o(INTERP i){
+    MVMObject *o     = GET_REG(i->cur_op, 2).o;
+    char      *data  = MVM_p6opaque_real_data(i->tc, OBJECT_BODY(o));
+    MVMObject *val   = *((MVMObject **)(data + GET_UI16(i->cur_op, 4)));
+    if (!val) {
+        /* Clone might allocate, so re-fei->tch things after it. */
+        val  = MVM_repr_clone(i->tc, (MVMObject *)i->tc->cur_frame->effective_spesh_slots[GET_UI16(i->cur_op, 6)]);
+        o    = GET_REG(i->cur_op, 2).o;
+        data = MVM_p6opaque_real_data(i->tc, OBJECT_BODY(o));
+        MVM_ASSIGN_REF(i->tc, &(o->header), *((MVMObject **)(data + GET_UI16(i->cur_op, 4))), val);
+    }
+    GET_REG(i->cur_op, 0).o = val;
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_sp_p6oget_i(INTERP i){
+    MVMObject *o     = GET_REG(i->cur_op, 2).o;
+    char      *data  = MVM_p6opaque_real_data(i->tc, OBJECT_BODY(o));
+    GET_REG(i->cur_op, 0).i64 = *((MVMint64 *)(data + GET_UI16(i->cur_op, 4)));
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_p6oget_n(INTERP i){
+    MVMObject *o     = GET_REG(i->cur_op, 2).o;
+    char      *data  = MVM_p6opaque_real_data(i->tc, OBJECT_BODY(o));
+    GET_REG(i->cur_op, 0).n64 = *((MVMnum64 *)(data + GET_UI16(i->cur_op, 4)));
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_p6oget_s(INTERP i){
+    MVMObject *o     = GET_REG(i->cur_op, 2).o;
+    char      *data  = MVM_p6opaque_real_data(i->tc, OBJECT_BODY(o));
+    GET_REG(i->cur_op, 0).s = *((MVMString **)(data + GET_UI16(i->cur_op, 4)));
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_p6obind_o(INTERP i){
+    MVMObject *o     = GET_REG(i->cur_op, 0).o;
+    MVMObject *value = GET_REG(i->cur_op, 4).o;
+    char      *data  = MVM_p6opaque_real_data(i->tc, OBJECT_BODY(o));
+    MVM_ASSIGN_REF(i->tc, &(o->header), *((MVMObject **)(data + GET_UI16(i->cur_op, 2))), value);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_p6obind_i(INTERP i){
+    MVMObject *o     = GET_REG(i->cur_op, 0).o;
+    char      *data  = MVM_p6opaque_real_data(i->tc, OBJECT_BODY(o));
+    *((MVMint64 *)(data + GET_UI16(i->cur_op, 2))) = GET_REG(i->cur_op, 4).i64;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_p6obind_n(INTERP i){
+    MVMObject *o     = GET_REG(i->cur_op, 0).o;
+    char      *data  = MVM_p6opaque_real_data(i->tc, OBJECT_BODY(o));
+    *((MVMnum64 *)(data + GET_UI16(i->cur_op, 2))) = GET_REG(i->cur_op, 4).n64;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_p6obind_s(INTERP i){
+    MVMObject *o     = GET_REG(i->cur_op, 0).o;
+    char      *data  = MVM_p6opaque_real_data(i->tc, OBJECT_BODY(o));
+    MVM_ASSIGN_REF(i->tc, &(o->header), *((MVMString **)(data + GET_UI16(i->cur_op, 2))),
+        GET_REG(i->cur_op, 4).s);
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_deref_get_i64(INTERP i){
+    MVMObject *o      = GET_REG(i->cur_op, 2).o;
+    MVMint64 **target = ((MVMint64 **)((char *)o + GET_UI16(i->cur_op, 4)));
+    GET_REG(i->cur_op, 0).i64 = **target;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_deref_get_n(INTERP i){
+    MVMObject *o      = GET_REG(i->cur_op, 2).o;
+    MVMnum64 **target = ((MVMnum64 **)((char *)o + GET_UI16(i->cur_op, 4)));
+    GET_REG(i->cur_op, 0).n64 = **target;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_deref_bind_i64(INTERP i){
+    MVMObject *o      = GET_REG(i->cur_op, 0).o;
+    MVMint64 **target = ((MVMint64 **)((char *)o + GET_UI16(i->cur_op, 4)));
+    **target          = GET_REG(i->cur_op, 2).i64;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_deref_bind_n(INTERP i){
+    MVMObject *o      = GET_REG(i->cur_op, 0).o;
+    MVMnum64 **target = ((MVMnum64 **)((char *)o + GET_UI16(i->cur_op, 4)));
+    **target          = GET_REG(i->cur_op, 2).n64;
+    i->cur_op += 6;
+    goto NEXT(i);
+            }
+__code cbc_sp_getlexvia_o(INTERP i){
+    MVMFrame *f = ((MVMCode *)GET_REG(i->cur_op, 6).o)->body.outer;
+    MVMuint16 idx = GET_UI16(i->cur_op, 2);
+    MVMuint16 outers = GET_UI16(i->cur_op, 4) - 1; /* - 1 as already in outer */
+    MVMRegister found;
+    while (outers) {
+        if (!f->outer)
+            MVM_exception_throw_adhoc(i->tc, "getlex: outer index out of range");
+        f = f->outer;
+        outers--;
+    }
+    found = GET_LEX(i->cur_op, 2, f);
+    GET_REG(i->cur_op, 0).o = found.o == NULL
+        ? MVM_frame_vivify_lexical(i->tc, f, idx)
+        : found.o;
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_sp_getlexvia_ins(INTERP i){
+    MVMFrame *f = ((MVMCode *)GET_REG(i->cur_op, 6).o)->body.outer;
+    MVMuint16 idx = GET_UI16(i->cur_op, 2);
+    MVMuint16 outers = GET_UI16(i->cur_op, 4) - 1; /* - 1 as already in outer */
+    while (outers) {
+        if (!f->outer)
+            MVM_exception_throw_adhoc(i->tc, "getlex: outer index out of range");
+        f = f->outer;
+        outers--;
+    }
+    GET_REG(i->cur_op, 0) = GET_LEX(i->cur_op, 2, f);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_sp_getstringfrom(INTERP i){
+    MVMCompUnit *dep = (MVMCompUnit *)i->tc->cur_frame->effective_spesh_slots[GET_UI16(i->cur_op, 2)];
+    MVMuint32 idx = GET_UI32(i->cur_op, 4);
+    GET_REG(i->cur_op, 0).s = MVM_cu_string(i->tc, dep, idx);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_sp_getwvalfrom(INTERP i){
+    MVMSerializationContext *dep = (MVMSerializationContext *)i->tc->cur_frame->effective_spesh_slots[GET_UI16(i->cur_op, 2)];
+    MVMuint64 idx = MVM_BC_get_I64(i->cur_op, 4);
+    GET_REG(i->cur_op, 0).o = MVM_sc_get_object(i->tc, dep, idx);
+    i->cur_op += 12;
+    goto NEXT(i);
+            }
+__code cbc_sp_jit_enter(INTERP i){
+    if (i->tc->cur_frame->spesh_cand->jii->tcode == NULL) {
+        MVM_exception_throw_adhoc(i->tc, "Try to enter NULL jii->tcode");
+    }
+    /* trampoline back to this opcode */
+    i->cur_op -= 2;
+    MVM_jit_enter_code(i->tc, cu, i->tc->cur_frame->spesh_cand->jii->tcode);
+    if (!i->tc->cur_frame) {
+        /* somehow unwound our top frame */
+        goto return_label;
+    }
+    goto NEXT(i);
+            }
+__code cbc_sp_boolify_iter(INTERP i){
+    GET_REG(i->cur_op, 0).i64 = MVM_iter_istrue(i->tc, (MVMIter*)GET_REG(i->cur_op, 2).o);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_sp_boolify_iter_arr(INTERP i){
+    MVMIter *iter = (MVMIter *)GET_REG(i->cur_op, 2).o;
+
+    GET_REG(i->cur_op, 0).i64 = iter->body.array_state.index + 1 < iter->body.array_state.limit ? 1 : 0;
+
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_sp_boolify_iter_hash(INTERP i){
+    MVMIter *iter = (MVMIter *)GET_REG(i->cur_op, 2).o;
+
+    GET_REG(i->cur_op, 0).i64 = iter->body.hash_state.next != NULL ? 1 : 0;
+
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_sp_cas_o(INTERP i){
+    MVMRegister *result = &GET_REG(i->cur_op, 0);
+    MVMObject *target = GET_REG(i->cur_op, 2).o;
+    MVMObject *expected = GET_REG(i->cur_op, 4).o;
+    MVMObject *value = GET_REG(i->cur_op, 6).o;
+    i->cur_op += 8;
+    target->st->container_spec->cas(i->tc, target, expected, value, result);
+    goto NEXT(i);
+            }
+__code cbc_sp_atomicload_o(INTERP i){
+    MVMObject *target = GET_REG(i->cur_op, 2).o;
+    GET_REG(i->cur_op, 0).o = target->st->container_spec->atomic_load(i->tc, target);
+    i->cur_op += 4;
+    goto NEXT(i);
+            }
+__code cbc_sp_atomicstore_o(INTERP i){
+    MVMObject *target = GET_REG(i->cur_op, 0).o;
+    MVMObject *value = GET_REG(i->cur_op, 2).o;
+    i->cur_op += 4;
+    target->st->container_spec->atomic_store(i->tc, target, value);
+    goto NEXT(i);
+            }
+__code cbc_prof_enter(INTERP i){
+    MVM_profile_log_enter(i->tc, i->tc->cur_frame->static_info,
+        MVM_PROFILE_ENTER_NORMAL);
+    goto NEXT(i);
+}
+__code cbc_prof_enterspesh(INTERP i){
+    MVM_profile_log_enter(i->tc, i->tc->cur_frame->static_info,
+        MVM_PROFILE_ENTER_SPESH);
+    goto NEXT(i);
+}
+__code cbc_prof_enterinline(INTERP i){
+    MVM_profile_log_enter(i->tc,
+        (MVMStaticFrame *)i->tc->cur_frame->effective_spesh_slots[GET_UI16(i->cur_op, 0)],
+        MVM_PROFILE_ENTER_SPESH_INLINE);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_prof_enternative(INTERP i){
+    MVM_profile_log_enter_native(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_prof_exit(INTERP i){
+    MVM_profile_log_exit(i->tc);
+    goto NEXT(i);
+}
+__code cbc_prof_allocated(INTERP i){
+    MVM_profile_log_allocated(i->tc, GET_REG(i->cur_op, 0).o);
+    i->cur_op += 2;
+    goto NEXT(i);
+}
+__code cbc_ctw_check(INTERP i){
+    MVMObject *obj = GET_REG(i->cur_op, 0).o;
+    MVMint16 blame = GET_I16(i->cur_op, 2);
+    i->cur_op += 4;
+    MVM_cross_thread_write_check(i->tc, obj, blame);
+    goto NEXT(i);
+            }
+__code cbc_DEPRECATED_4(INTERP i){
+    goto cbc_DEPRECATED_5(i);
+}
+__code cbc_DEPRECATED_5(INTERP i){
+    goto cbc_DEPRECATED_6(i);
+}
+__code cbc_DEPRECATED_6(INTERP i){
+    goto cbc_DEPRECATED_7(i);
+}
+__code cbc_DEPRECATED_7(INTERP i){
+    goto cbc_DEPRECATED_8(i);
+}
+__code cbc_DEPRECATED_8(INTERP i){
+    goto cbc_DEPRECATED_9(i);
+}
+__code cbc_DEPRECATED_9(INTERP i){
+    goto cbc_DEPRECATED_10(i);
+}
+__code cbc_DEPRECATED_10(INTERP i){
+    goto cbc_DEPRECATED_11(i);
+}
+__code cbc_DEPRECATED_11(INTERP i){
+    goto cbc_DEPRECATED_12(i);
+}
+__code cbc_DEPRECATED_12(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "The getregref_* ops were removed in MoarVM 2017.01.");
+}
+__code cbc_DEPRECATED_13(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "The continuationclone op was removed in MoarVM 2017.01.");
+}
+__code cbc_DEPRECATED_14(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "The asyncwritestr op was removed in MoarVM 2017.05.");
+}
+__code cbc_DEPRECATED_15(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "The asyncwritestrto op was removed in MoarVM 2017.05.");
+}
+__code cbc_DEPRECATED_16(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "The asyncreadchars op was removed in MoarVM 2017.05.");
+}
+__code cbc_DEPRECATED_17(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "The setencoding op was removed in MoarVM 2017.06.");
+}
+__code cbc_DEPRECATED_18(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "The write_fhs op was removed in MoarVM 2017.06.");
+}
+__code cbc_DEPRECATED_19(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "The say_fhs op was removed in MoarVM 2017.06.");
+}
+__code cbc_DEPRECATED_21(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "The readlinechomp_fh op was removed in MoarVM 2017.06.");
+}
+__code cbc_DEPRECATED_22(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "The readall_fh op was removed in MoarVM 2017.06.");
+}
+__code cbc_DEPRECATED_23(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "The read_fhs op was removed in MoarVM 2017.06.");
+}
+__code cbc_DEPRECATED_24(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "The setinputlinesep op was removed in MoarVM 2017.06.");
+}
+__code cbc_DEPRECATED_25(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "The setinputlineseps op was removed in MoarVM 2017.06.");
+}
+__code cbc_DEPRECATED_27(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "The slurp op was removed in MoarVM 2017.06.");
+}
+__code cbc_DEPRECATED_28(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "The spew op was removed in MoarVM 2017.06.");
+}
+__code cbc_DEPRECATED_29(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "The spawn op was removed in MoarVM 2017.07.");
+}
+__code cbc_DEPRECATED_30(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "The shell op was removed in MoarVM 2017.07.");
+}
+__code cbc_DEPRECATED_31(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "The syncpipe op was removed in MoarVM 2017.07.");
+}
+__code cbc_DEPRECATED_32(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "The close_fhi op was removed in MoarVM 2017.07.");
+}
+__code cbc_DEPRECATED_33(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "The newlexotic op was removed in MoarVM 2017.08.");
+}
+__code cbc_DEPRECATED_34(INTERP i){
+    MVM_exception_throw_adhoc(i->tc, "The lexoticresult op was removed in MoarVM 2017.08.");
+}
+__code cbc_coverage_log(INTERP i){
+    MVMString *filename = MVM_cu_string(i->tc, cu, GET_UI32(i->cur_op, 0));
+    MVMuint32 lineno    = GET_UI32(i->cur_op, 4);
+    MVMuint32 cacheidx  = GET_UI32(i->cur_op, 8);
+    char      *cache    = (char *)MVM_BC_get_I64(i->cur_op, 12);
+    MVM_line_coverage_report(i->tc, filename, lineno, cacheidx, cache);
+    i->cur_op += 20;
+    goto NEXT(i);
+            }
+__code cbc_breakpoint(INTERP i){
+    MVMuint32 file_idx = GET_UI32(i->cur_op, 0);
+    MVMuint32 line_no  = GET_UI32(i->cur_op, 4);
+    MVM_debugserver_breakpoint_check(i->tc, file_idx, line_no);
+    i->cur_op += 8;
+    goto NEXT(i);
+            }
+__code cbc_coveragecontrol(INTERP i){
+    MVMuint32 cc = (MVMuint32)GET_REG(i->cur_op, 0).i64;
+    if (i->tc->instance->coverage_control && (cc == 0 || cc == 1))
+        i->tc->instance->coverage_control = cc + 1;
+    i->cur_op += 2;
+    goto NEXT(i);
+            }
+
+/* This is the interpreter run loop. We have one of these per thread. */
+void MVM_interp_run(MVMThreadContext *tc, void (*initial_invoke)(MVMThreadContext *, void *), void *invoke_data) {
+#if MVM_CGOTO
+#endif
+
+    INTER inter = {NULL,NULL,NULL,NULL,NULL,NULL,tc};
+    INTERP i = &inter;
+
+     /* Stash addresses of current op, register base and SC deref base
+     * in the TC; this will be used by anything that needs to switch
+     * the current place we're interpreting. */
+    tc->interp_cur_op         = &cur_op;
+    tc->interp_bytecode_start = &bytecode_start;
+    tc->interp_reg_base       = &reg_base;
+    tc->interp_cu             = &cu;
+
+    /* With everything set up, do the initial invocation (exactly what this does
+     * varies depending on if this is starting a new thread or is the top-level
+     * program entry point). */
+    initial_invoke(tc, invoke_data);
+
+    /* Set jump point, for if we arrive back in the interpreter from an
+     * exception thrown from C code. */
+    setjmp(tc->interp_jump);
+
+    /* Enter runloop. */
+    runloop: {
+        MVMuint16 op;
+
+#if MVM_TRACING
+        if (tracing_enabled) {
+            char *trace_line;
+            trace_line = MVM_exception_backtrace_line(tc, tc->cur_frame, 0, cur_op);
+            fprintf(stderr, "Op %d%s\n", (int)*((MVMuint16 *)cur_op), trace_line);
+            /* slow tracing is slow. Feel free to speed it. */
+            MVM_free(trace_line);
+        }
+#endif
+
+        /* The ops should be in the same order here as in the oplist file, so
+         * the compiler can can optimise the switch properly */
+        DISPATCH(NEXT_OP) {
+#if MVM_CGOTO
+            OP_CALL_EXTOP: {
+                /* Bounds checking? Never heard of that. */
+                MVMuint8 *op_before = cur_op;
+                MVMExtOpRecord *record = &cu->body.extops[op - MVM_OP_EXT_BASE];
+                record->func(tc, cur_op);
+                if (op_before == cur_op)
+                    cur_op += record->operand_bytes;
+                goto NEXT;
+            }
+#else
+            default: {
+                if (op >= MVM_OP_EXT_BASE
+                        && (op - MVM_OP_EXT_BASE) < cu->body.num_extops) {
+                    MVMuint8 *op_before = cur_op;
+                    MVMExtOpRecord *record =
+                            &cu->body.extops[op - MVM_OP_EXT_BASE];
+                    record->func(tc, cur_op);
+                    if (op_before == cur_op)
+                        cur_op += record->operand_bytes;
+                    goto NEXT;
+                }
+
+                MVM_panic(MVM_exitcode_invalidopcode, "Invalid opcode executed (corrupt bytecode stream?) opcode %u", op);
+            }
+#endif
+        }
+    }
+
+    return_label:
+    /* Need to clear these pointer pointers since they may be rooted
+     * by some GC procedure. */
+    tc->interp_cur_op         = NULL;
+    tc->interp_bytecode_start = NULL;
+    tc->interp_reg_base       = NULL;
+    tc->interp_cu             = NULL;
+    MVM_barrier();
+}
+
+void MVM_interp_enable_tracing() {
+    tracing_enabled = 1;
+}