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arm-asm: Add wfe, wfi

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Danny Milosavljevic 2020-12-26 16:46:08 +01:00
parent aaf052391d
commit a16678e9f3
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2 changed files with 9 additions and 0 deletions
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7
arm-asm.c
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@ -83,6 +83,11 @@ static void asm_nullary_opcode(int token)
case TOK_ASM_nopeq:
asm_emit_opcode(token, 0xd << 21); // mov r0, r0
break;
case TOK_ASM_wfeeq:
asm_emit_opcode(token, 0x320f002);
case TOK_ASM_wfieq:
asm_emit_opcode(token, 0x320f003);
break;
default:
expect("nullary instruction");
}
@ -103,6 +108,8 @@ ST_FUNC void asm_opcode(TCCState *s1, int token)
switch (ARM_INSTRUCTION_GROUP(token)) {
case TOK_ASM_nopeq:
case TOK_ASM_wfeeq:
case TOK_ASM_wfieq:
return asm_nullary_opcode(token);
default:
expect("known instruction");

2
arm-tok.h
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@ -52,3 +52,5 @@
/* Note: add new tokens after nop (MUST always use DEF_ASM_CONDED) */
DEF_ASM_CONDED(nop)
DEF_ASM_CONDED(wfe)
DEF_ASM_CONDED(wfi)