Mercurial > hg > CbC > CbC_gcc
diff CbC-examples/conv.c @ 21:959d4c8c8abc
add conv.c conv1.c
author | kent <kent@cr.ie.u-ryukyu.ac.jp> |
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date | Tue, 29 Sep 2009 20:15:16 +0900 |
parents | |
children | 0eb6cac880f0 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/CbC-examples/conv.c Tue Sep 29 20:15:16 2009 +0900 @@ -0,0 +1,92 @@ +#include "stdio.h" + +f0(int i) { + int k,j; + k = 3+i; + j = g0(i+3); + return k+4+j; +} + +g0(int i) { + return i+4; +} + + +typedef void *stack; + +__code f_g0(int i,int k,stack sp) ; + +struct cont_interface { // General Return Continuation + __code (*ret)(int, void*); +}; + +__code f(int i,stack sp) { + int k,j; + k = 3+i; + goto f_g0(i,k,sp); +} + +struct f_g0_interface { // Specialized Return Continuation + __code (*ret)(); + int i_,k_,j_; +}; + +__code f_g1(int j,stack sp); +__code g(int i,stack sp) ; + +__code f_g0(int i,int k,stack sp) { // Caller + struct f_g0_interface *c = + (struct f_g0_interface *)(sp -= sizeof(struct f_g0_interface)); + + c->ret = f_g1; + c->k_ = k; + c->i_ = i; + + goto g(i+3,sp); +} + +__code f_g1(int j,stack sp) { // Continuation + struct f_g0_interface *c = (struct f_g0_interface *)sp; + int k = c->k_; + sp += sizeof(struct f_g0_interface); + goto (( (struct cont_interface *)sp)->ret)(k+4+j,sp); +} + +__code g(int i,stack sp) { + goto (( (struct cont_interface *)sp)->ret)(i+4,sp); +} + +struct main_continuation { // General Return Continuation + __code (*ret)(int, void*); + __code (*main_ret)(int, void*); + void *env; +}; + +__code main_return(int i,stack sp) { + printf("#0061:%d\n",i); + goto (( (struct main_continuation *)sp)->main_ret)(0, + ((struct main_continuation *)sp)->env); +} + +#define STACK_SIZE 2048 +char main_stack[STACK_SIZE]; +#define stack_last (&main_stack[STACK_SIZE]) + +typedef __code (*return_type)(int, void*); +int +main(int argc, char **argv) +{ + struct main_continuation *cont; + stack sp = stack_last; + + printf("#0075:%d\n",f0(233)); + + sp -= sizeof(*cont); + cont = (struct main_continuation *)sp; + cont->ret = main_return; + cont->main_ret = (return_type) _CbC_return; + cont->env = _CbC_environment; + goto f(233,sp); +} + +/* end */