---
arm-asm.c | 21 +++++++++++++++++++++
arm-tok.h | 1 +
2 files changed, 22 insertions(+)
diff --git a/arm-asm.c b/arm-asm.c
index d79bf58..b6dfafe 100644
--- a/arm-asm.c
+++ b/arm-asm.c
@@ -171,6 +171,25 @@ static void asm_nullary_opcode(int token)
}
}
+static void asm_unary_opcode(TCCState *s1, int token)
+{
+ Operand op;
+ parse_operand(s1, &op);
+
+ switch (ARM_INSTRUCTION_GROUP(token)) {
+ case TOK_ASM_swieq:
+ if (op.type != OP_IM8)
+ expect("immediate 8-bit unsigned integer");
+ else {
+ /* Note: Dummy operand (ignored by processor): ARM ref documented
0...255, ARM instruction set documented 24 bit */
+ asm_emit_opcode(token, (0xf << 24) | op.e.v);
+ }
+ break;
+ default:
+ expect("unary instruction");
+ }
+}
+
static void asm_block_data_transfer_opcode(TCCState *s1, int token)
{
uint32_t opcode;
@@ -247,6 +266,8 @@ ST_FUNC void asm_opcode(TCCState *s1, int token)
case TOK_ASM_wfeeq:
case TOK_ASM_wfieq:
return asm_nullary_opcode(token);
+ case TOK_ASM_swieq:
+ return asm_unary_opcode(s1, token);
default:
expect("known instruction");
}
diff --git a/arm-tok.h b/arm-tok.h
index 82cb3dd..db1935f 100644
--- a/arm-tok.h
+++ b/arm-tok.h
@@ -54,6 +54,7 @@
DEF_ASM_CONDED(nop)
DEF_ASM_CONDED(wfe)
DEF_ASM_CONDED(wfi)
+ DEF_ASM_CONDED(swi)
/* instruction macros */
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