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Yaossg 2024-12-24 15:00:51 +08:00
parent 49ed7c5df5
commit 92f4b4f561
52 changed files with 143 additions and 48 deletions
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13
boot.c
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@ -1095,10 +1095,6 @@ int asm_add(int lhs, int rhs) {
idx = lhs;
}
int ptr_type = reg_type[ptr];
if (ptr_type == TYPE_VOID_PTR) {
fprintf(stderr, "void pointer cannot be arithmetically operated\n");
exit(1);
}
int offset = next_reg(TYPE_INT);
_asm_ri("slli", offset, idx, log_step_of(ptr_type));
return asm_rr(ptr_type, "add", ptr, offset);
@ -1120,10 +1116,6 @@ int asm_sub(int lhs, int rhs) {
fprintf(stderr, "pointer type mismatch\n");
exit(1);
}
if (lhs_type == TYPE_VOID_PTR) {
fprintf(stderr, "void pointer cannot be arithmetically operated\n");
exit(1);
}
int diff = asm_rr(TYPE_INT, "sub", lhs, rhs);
_asm_ri("srai", diff, diff, log_step_of(lhs_type));
return diff;
@ -1151,6 +1143,7 @@ int addressof(int reg) {
indirection[reg] = 0;
} else {
printf("cannot take address of this expression");
exit(1);
}
return reg;
}
@ -1651,10 +1644,6 @@ void parse_local_variable(int type) {
unget_token();
expect_token(TOKEN_ASSIGN);
int reg = parse_expr();
if (type != reg_type[reg]) {
fprintf(stderr, "type mismatch in assignment\n");
exit(1);
}
store_into_local(reg, slot);
}