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Support [base + index<<scale] and [base + index>>scale]; Support syntax for [base]:u8 (not implemented yet)

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gingerBill
2026-08-12 09:03:31 +01:00
parent 21ad041232
commit c80fedc070
5 changed files with 103 additions and 27 deletions
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27
src/parser.cpp
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@@ -551,6 +551,7 @@ gb_internal Ast *clone_ast(Ast *node, AstFile *f) {
n->AsmMemoryOperand.index = clone_ast(n->AsmMemoryOperand.index, f);
n->AsmMemoryOperand.scale = clone_ast(n->AsmMemoryOperand.scale, f);
n->AsmMemoryOperand.disp = clone_ast(n->AsmMemoryOperand.disp, f);
n->AsmMemoryOperand.type = clone_ast(n->AsmMemoryOperand.type, f);
break;
}
return n;
@@ -2444,12 +2445,18 @@ gb_internal Ast *parse_asm_operand(AstFile *f, bool allow_memory_operand) {
Ast *index = nullptr;
Ast *scale = nullptr;
Ast *disp = nullptr;
Ast *type = nullptr;
Token scale_op = {};
base = parse_asm_operand(f, false);
if (allow_token(f, Token_Add)) {
Ast *possible_index = parse_asm_operand(f, false);
if (allow_token(f, Token_Mul)) {
if (allow_token(f, Token_Mul) ||
allow_token(f, Token_Shl) ||
allow_token(f, Token_Shr)) {
scale_op = f->prev_token;
index = possible_index;
scale = parse_asm_operand(f, false);
if (allow_token(f, Token_Add)) {
@@ -2462,13 +2469,19 @@ gb_internal Ast *parse_asm_operand(AstFile *f, bool allow_memory_operand) {
Token close = expect_token(f, Token_CloseBracket);
if (allow_token(f, Token_Colon)) {
type = parse_type(f);
}
Ast *mem = alloc_ast_node(f, Ast_AsmMemoryOperand);
mem->AsmMemoryOperand.open = open;
mem->AsmMemoryOperand.base = base;
mem->AsmMemoryOperand.index = index;
mem->AsmMemoryOperand.scale = scale;
mem->AsmMemoryOperand.disp = disp;
mem->AsmMemoryOperand.close = close;
mem->AsmMemoryOperand.open = open;
mem->AsmMemoryOperand.base = base;
mem->AsmMemoryOperand.index = index;
mem->AsmMemoryOperand.scale = scale;
mem->AsmMemoryOperand.scale_op = scale_op;
mem->AsmMemoryOperand.disp = disp;
mem->AsmMemoryOperand.close = close;
mem->AsmMemoryOperand.type = type;
return mem;
}