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Improve pointer comparsion for Nevada and Sonora mods 

See #189
This commit is contained in:
Ivan Sokolov 2023-05-25 21:19:47 +08:00
parent 62c5c4757c
commit 95f023c98c
2 changed files with 13 additions and 2 deletions
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14
src/interpreter.cc
View File

@ -1131,7 +1131,12 @@ static void opConditionalOperatorLessThanEquals(Program* program)
case VALUE_TYPE_PTR:
switch (value[0].opcode) {
case VALUE_TYPE_INT:
result = (uintptr_t)value[1].pointerValue <= (uintptr_t)value[0].integerValue;
if (value[0].integerValue > 0) {
result = (uintptr_t)value[1].pointerValue <= (uintptr_t)value[0].integerValue;
} else {
// (ptr <= int{0 or negative}) means (ptr == nullptr)
result = nullptr == value[1].pointerValue;
}
break;
default:
assert(false && "Should be unreachable");
@ -1385,7 +1390,12 @@ static void opConditionalOperatorGreaterThan(Program* program)
case VALUE_TYPE_PTR:
switch (value[0].opcode) {
case VALUE_TYPE_INT:
result = (uintptr_t)value[1].pointerValue > (uintptr_t)value[0].integerValue;
if (value[0].integerValue > 0) {
result = (uintptr_t)value[1].pointerValue > (uintptr_t)value[0].integerValue;
} else {
// (ptr > int{0 or negative}) means (ptr != nullptr)
result = nullptr != value[1].pointerValue;
}
break;
default:
assert(false && "Should be unreachable");

1
src/interpreter.h
View File

@ -148,6 +148,7 @@ typedef struct ProgramValue {
void* pointerValue;
};
ProgramValue() : opcode(0), pointerValue(nullptr) {}
bool isEmpty();
bool isInt();
bool isFloat();