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Support #byte directive for asm templates

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gingerBill
2026-08-17 13:21:40 +01:00
parent c2dfcb3c28
commit 55377f71ef
5 changed files with 77 additions and 0 deletions
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32
src/check_asm.cpp
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@@ -1486,6 +1486,38 @@ gb_internal void check_asm_template(AsmCtx *asm_ctx, CheckerContext *ctx, Entity
}
case_end;
case_ast_node(dir, AsmDirective, instruction_);
String name = dir->name.string;
if (name == "byte") {
if (dir->operands.count == 0) {
error(dir->name, "Expected 1 or more integers for the asm directive #%.*s", LIT(name));
break;
}
array_clear(&operands);
for (Ast *expr : dir->operands) {
Operand operand = {};
check_asm_instruction_operand(asm_ctx, ctx, entity, &operand, expr, /*allow_memory_operands*/true);
array_add(&operands, operand);
}
for (auto const &op : operands) {
if (op.mode != Addressing_Constant) {
error(op.expr, "Expected an integer for the asm directive #%.*s", LIT(name));
continue;
}
ExactValue ev = exact_value_to_integer(op.value);
if (ev.kind != ExactValue_Integer) {
error(op.expr, "Expected an integer for the asm directive #%.*s", LIT(name));
continue;
}
i64 i = exact_value_to_i64(ev);
if (i < 0 || i > 255) {
error(op.expr, "Expected an integer within 0..<256 for the asm directive #%.*s, got %lld", LIT(name), cast(long long)i);
continue;
}
}
}
case_end;
default:
error(instruction_, "Unexpected instruction in asm template");
break;