|
152
|
1 ;; ----------------------------------------------------------------------
|
|
|
2 ;; PROLOGUE/EPILOGUE-RELATED INSTRUCTIONS
|
|
|
3 ;; ----------------------------------------------------------------------
|
|
|
4
|
|
|
5 (define_expand "push_h8300hs_advanced"
|
|
|
6 [(set (mem:SI (pre_dec:SI (reg:SI SP_REG)))
|
|
|
7 (match_operand:SI 0 "register_operand" ""))]
|
|
|
8 "TARGET_H8300H && TARGET_H8300S && !TARGET_NORMAL_MODE"
|
|
|
9 "")
|
|
|
10
|
|
|
11 (define_expand "push_h8300hs_normal"
|
|
|
12 [(set (mem:SI (pre_dec:HI (reg:HI SP_REG)))
|
|
|
13 (match_operand:SI 0 "register_operand" ""))]
|
|
|
14 "TARGET_H8300H && TARGET_H8300S && TARGET_NORMAL_MODE"
|
|
|
15 "")
|
|
|
16
|
|
|
17 (define_expand "pop_h8300hs_advanced"
|
|
|
18 [(set (match_operand:SI 0 "register_operand" "")
|
|
|
19 (mem:SI (post_inc:SI (reg:SI SP_REG))))]
|
|
|
20 "TARGET_H8300H && TARGET_H8300S && !TARGET_NORMAL_MODE"
|
|
|
21 "")
|
|
|
22
|
|
|
23 (define_expand "pop_h8300hs_normal"
|
|
|
24 [(set (match_operand:SI 0 "register_operand" "")
|
|
|
25 (mem:SI (post_inc:HI (reg:HI SP_REG))))]
|
|
|
26 "TARGET_H8300H && TARGET_H8300S && TARGET_NORMAL_MODE"
|
|
|
27 "")
|
|
|
28
|
|
|
29 (define_insn "ldm_h8300sx"
|
|
|
30 [(match_parallel 0 "h8300_ldm_parallel"
|
|
|
31 [(set (match_operand:SI 1 "register_operand" "")
|
|
|
32 (match_operand:SI 2 "memory_operand" ""))])]
|
|
|
33 "TARGET_H8300S"
|
|
|
34 {
|
|
|
35 operands[3] = SET_DEST (XVECEXP (operands[0], 0,
|
|
|
36 XVECLEN (operands[0], 0) - 2));
|
|
|
37 return "ldm.l\t@er7+,%S1-%S3";
|
|
|
38 }
|
|
|
39 [(set_attr "cc" "none")
|
|
|
40 (set_attr "length" "4")])
|
|
|
41
|
|
|
42 (define_insn "stm_h8300sx"
|
|
|
43 [(match_parallel 0 "h8300_stm_parallel"
|
|
|
44 [(set (match_operand:SI 1 "memory_operand" "")
|
|
|
45 (match_operand:SI 2 "register_operand" ""))])]
|
|
|
46 "TARGET_H8300S"
|
|
|
47 {
|
|
|
48 operands[3] = SET_SRC (XVECEXP (operands[0], 0,
|
|
|
49 XVECLEN (operands[0], 0) - 2));
|
|
|
50 return "stm.l\t%S2-%S3,@-er7";
|
|
|
51 }
|
|
|
52 [(set_attr "cc" "none")
|
|
|
53 (set_attr "length" "4")])
|
|
|
54
|
|
|
55 (define_insn "return_h8sx"
|
|
|
56 [(match_parallel 0 "h8300_return_parallel"
|
|
|
57 [(return)
|
|
|
58 (set (match_operand:SI 1 "register_operand" "")
|
|
|
59 (match_operand:SI 2 "memory_operand" ""))])]
|
|
|
60 "TARGET_H8300SX"
|
|
|
61 {
|
|
|
62 operands[3] = SET_DEST (XVECEXP (operands[0], 0,
|
|
|
63 XVECLEN (operands[0], 0) - 2));
|
|
|
64 if (h8300_current_function_interrupt_function_p ()
|
|
|
65 || h8300_current_function_monitor_function_p ())
|
|
|
66 return "rte/l\t%S1-%S3";
|
|
|
67 else
|
|
|
68 return "rts/l\t%S1-%S3";
|
|
|
69 }
|
|
|
70 [(set_attr "cc" "none")
|
|
|
71 (set_attr "can_delay" "no")
|
|
|
72 (set_attr "length" "2")])
|
|
|
73
|
|
|
74 (define_expand "return"
|
|
|
75 [(return)]
|
|
|
76 "h8300_can_use_return_insn_p ()"
|
|
|
77 "")
|
|
|
78
|
|
|
79 (define_insn "*return_1"
|
|
|
80 [(return)]
|
|
|
81 "reload_completed"
|
|
|
82 {
|
|
|
83 if (h8300_current_function_interrupt_function_p ()
|
|
|
84 || h8300_current_function_monitor_function_p ())
|
|
|
85 return "rte";
|
|
|
86 else
|
|
|
87 return "rts";
|
|
|
88 }
|
|
|
89 [(set_attr "cc" "none")
|
|
|
90 (set_attr "can_delay" "no")
|
|
|
91 (set_attr "length" "2")])
|
|
|
92
|
|
|
93 (define_expand "prologue"
|
|
|
94 [(const_int 0)]
|
|
|
95 ""
|
|
|
96 {
|
|
|
97 h8300_expand_prologue ();
|
|
|
98 DONE;
|
|
|
99 })
|
|
|
100
|
|
|
101 (define_expand "epilogue"
|
|
|
102 [(return)]
|
|
|
103 ""
|
|
|
104 {
|
|
|
105 h8300_expand_epilogue ();
|
|
|
106 DONE;
|
|
|
107 })
|
|
|
108
|
|
|
109 (define_insn "monitor_prologue"
|
|
|
110 [(unspec_volatile [(const_int 0)] UNSPEC_MONITOR)]
|
|
|
111 ""
|
|
|
112 {
|
|
|
113 if (TARGET_H8300H && TARGET_NORMAL_MODE)
|
|
|
114 return "subs\\t#2,er7\;mov.l\\ter0,@-er7\;stc\\tccr,r0l\;mov.b\\tr0l,@(4,er7)\;mov.l\\t@er7+,er0\;orc\\t#128,ccr";
|
|
|
115 else if (TARGET_H8300H)
|
|
|
116 return "mov.l\\ter0,@-er7\;stc\\tccr,r0l\;mov.b\\tr0l,@(4,er7)\;mov.l\\t@er7+,er0\;orc\\t#128,ccr";
|
|
|
117 else if (TARGET_H8300S && TARGET_NEXR )
|
|
|
118 return "mov.l\\ter0,@-er7\;stc\tccr,r0l\;mov.b\tr0l,@(4,er7)\;mov.l\\t@er7+,er0\;orc\t#128,ccr";
|
|
|
119 else if (TARGET_H8300S && TARGET_NEXR && TARGET_NORMAL_MODE)
|
|
|
120 return "subs\\t#2,er7\;mov.l\\ter0,@-er7\;stc\tccr,r0l\;mov.b\tr0l,@(4,er7)\;mov.l\\t@er7+,er0\;orc\t#128,ccr";
|
|
|
121 else if (TARGET_H8300S && TARGET_NORMAL_MODE)
|
|
|
122 return "subs\\t#2,er7\;stc\texr,@-er7\;mov.l\\ter0,@-er7\;stc\tccr,r0l\;mov.b\tr0l,@(6,er7)\;mov.l\\t@er7+,er0\;orc\t#128,ccr";
|
|
|
123 else if (TARGET_H8300S)
|
|
|
124 return "stc\texr,@-er7\;mov.l\\ter0,@-er7\;stc\tccr,r0l\;mov.b\tr0l,@(6,er7)\;mov.l\\t@er7+,er0\;orc\t#128,ccr";
|
|
|
125 gcc_unreachable ();
|
|
|
126 }
|
|
|
127 [(set_attr "length" "20")])
|
