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arm-asm: Add movw

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Danny Milosavljevic 2021-01-03 01:59:16 +01:00
parent c882d03673
commit 14b7973ab5
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GPG key ID: E71A35542C30BAA5
2 changed files with 11 additions and 1 deletions
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9
arm-asm.c
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@ -228,10 +228,18 @@ static void asm_binary_opcode(TCCState *s1, int token)
if (ops[1].type != OP_REG32) {
switch (ARM_INSTRUCTION_GROUP(token)) {
case TOK_ASM_movteq:
case TOK_ASM_movweq:
if (ops[1].type == OP_IM8 || ops[1].type == OP_IM8N || ops[1].type == OP_IM32) {
if (ops[1].e.v >= 0 && ops[1].e.v <= 0xFFFF) {
uint16_t immediate_value = ops[1].e.v;
switch (ARM_INSTRUCTION_GROUP(token)) {
case TOK_ASM_movteq:
asm_emit_opcode(token, 0x3400000 | (ops[0].reg << 12) | (immediate_value & 0xF000) << 4 | (immediate_value & 0xFFF));
break;
case TOK_ASM_movweq:
asm_emit_opcode(token, 0x3000000 | (ops[0].reg << 12) | (immediate_value & 0xF000) << 4 | (immediate_value & 0xFFF));
break;
}
} else
expect("(source operand) immediate 16 bit value");
} else
@ -1134,6 +1142,7 @@ ST_FUNC void asm_opcode(TCCState *s1, int token)
case TOK_ASM_uxtbeq:
case TOK_ASM_uxtheq:
case TOK_ASM_movteq:
case TOK_ASM_movweq:
return asm_binary_opcode(s1, token);
case TOK_ASM_ldreq:

1
arm-tok.h
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@ -70,6 +70,7 @@
DEF_ASM_CONDED(uxtb)
DEF_ASM_CONDED(uxth)
DEF_ASM_CONDED(movt)
DEF_ASM_CONDED(movw)
/* multiplication */