3 ms·
Nitpick: the 486 had versions without FPUs, or which had them disabled. I had a 486 SX 25Mhz. "Because Doom was written to run on early 386 and 486 processors
by sillywalk 3y ago
Nitpick: the 486 had versions without FPUs, or which had them disabled. I had a 486 SX 25Mhz.
"Because Doom was written to run on early 386 and 486 processors which often lacked a floating-point unit entirely, and its use was slow even when present, the game was written to exclusively use fixed point math." [0]
[0] https://doomwiki.org/wiki/Approximate_distance https://doomwiki.org/wiki/Approximate_distance