arm-asm: Add swi

Danny Milosavljevic committed 5 years ago

Commit c9e0c2a1 parent b4959592 files · +22 −0Browse files

Unified · Split

2 files

@@ -171,6 +171,25 @@ static void asm_nullary_opcode(int token) · 170 unmodified lines
171	171	}
172	172	}
173	173
	174	+static void asm_unary_opcode(TCCState *s1, int token)
	175	+{
	176	+ Operand op;
	177	+ parse_operand(s1, &op);
	178	+
	179	+ switch (ARM_INSTRUCTION_GROUP(token)) {
	180	+ case TOK_ASM_swieq:
	181	+ if (op.type != OP_IM8)
	182	+ expect("immediate 8-bit unsigned integer");
	183	+ else {
	184	+ /* Note: Dummy operand (ignored by processor): ARM ref documented 0...255, ARM instruction set documented 24 bit */
	185	+ asm_emit_opcode(token, (0xf << 24) \| op.e.v);
	186	+ }
	187	+ break;
	188	+ default:
	189	+ expect("unary instruction");
	190	+ }
	191	+}
	192	+
174	193	static void asm_block_data_transfer_opcode(TCCState *s1, int token)
175	194	{
176	195	uint32_t opcode;
@@ -247,6 +266,8 @@ ST_FUNC void asm_opcode(TCCState *s1, int token) · 70 unmodified lines
247	266	case TOK_ASM_wfeeq:
248	267	case TOK_ASM_wfieq:
249	268	return asm_nullary_opcode(token);
	269	+ case TOK_ASM_swieq:
	270	+ return asm_unary_opcode(s1, token);
250	271	default:
251	272	expect("known instruction");
252	273	}

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