3 ms·
Ohh, and then we could write the digits in octal. Interestingly, the N64 internally had 9 bit bytes, just accesses from the CPU ignored one of the bits. This
by monocasa 1y ago
Ohh, and then we could write the digits in octal.
Interestingly, the N64 internally had 9 bit bytes, just accesses from the CPU ignored one of the bits. This wasn't a parity bit, but instead a true extra data bit that was used by the GPU.
- ethan_smith 1y agoThe N64's Reality Display Processor actually used that 9th bit as a coverage mask for antialiasing, allowing per-pixel alpha blending without additional memory lookups.
- monocasa 1y agoAs well as extra bits in the Z buffer to give it a 15.3 fixed point format.