3 ms·
I wonder about the bincompat of such a change. "32-bit clean" all over again?
by ridiculous_fish 8y ago
I wonder about the bincompat of such a change. "32-bit clean" all over again?
- slededit 8y agoX64 was designed with this in mind. All non-active bits must be the same value (a so called canonical address) or the processor will fault. You can’t use them for flag bits unless you make sure to clear them before dereferencing memory.