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Re: Quake without FPU

The same system configuration and Quake runs with Q87X on 486SX2/66 but it won't on a Ti486DLC. Of course the motherboard is also different. ( This does not mean that the EMM is not problematic on the DLC. How much RAM do you have on both platforms? Is the RAM on the DLC thoroughly tested for …

Re: Quake without FPU

Good. Q87/Q387 is the fastest of all other FPU software emulation routines that you may come across. Quake may be picky about the expanded memory manager as I mentioned before, so I strongly advise you to try instead of EMM386 QEMM or 386MAX and not to blame Q87 alone for your failures to run Quake. …

Re: Quake without FPU

This FPU emulator is a DOS executable and requires no installation at all (unless you want to use the windows vxd driver that appeared in the latest versions). Just run Q87 or Q87X at the command prompt and it should remain resident. 4.13 is the latest version and supersedes version 4.1. Quake may …

Re: Quake without FPU

Wrong! It will wait if/when WAIT/FWAIT instruction is executed. Until then even 8087 crunches numbers by its own. Pipelining is not related to this at all. Pretty sure it doesn't work like that on the 486 at least. Else the whole Abrash article, and the fact that Quake runs like a total dog on any …

Re: Quake without FPU

On every x86 NPU since the very first 8087 it runs in parallel to the CPU! The CPU would wait for the FPU to complete before executing the next instruction. Wrong! It will wait if/when WAIT/FWAIT instruction is executed. Until then even 8087 crunches numbers by its own. Pipelining is not related to …

Re: Quake without FPU

Then you have to count your gameplay in frames per minute, so what is really the point. I barely runs with a 486DX or Cyrix, it is tailored for a dual pipelined Pentium, thats it. When you try it yourself then you speak! Q87 outperforms real 287 on 386 CPU not to mention on pentium CPUs. "That's it …

Re: Quake without FPU

Is there any trick how to run Quake on a system without FPU (NexGen Nx586). Tried to load Q87 emulator, but it is hanging on start. It should be running. What is the Q87 version? What is the EMM version? More details about the "hanging on start", especially which software hangs on its start! @ …

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