VOGONS


First post, by noshutdown

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Oldbie

well i actually have a cyrix fastmath(which isn't too hard to get after all), but just wonder how a computer would perform without one.
the most famous 387 emulator seems to be q387 and frank387, can anyone tell me how well they work? and can they work with win95 programs like superpi?

Reply 1 of 1, by matze79

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l33t

no they don't work with Windows 95 SuperPi and co.

Also Windows 95 has its own FPU Emulator.

They use FPU Exception Interupt and instead of processing data with fpu, its processed with the Software TSR.

mostly you will not notice any difference on this old systems.
Because most software does not use FPU.
Its using fixed point arithmetic.

https://doomwiki.org/wiki/Fixed_point

In a fixed point system, a 32-bit integer is split into two parts, the upper 16 bits are the integral part, and the lower 16 bits are the fractional part. For example, the value 2.5 is stored as 1 638 400.

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