VOGONS

Sim City 2000 FPU/Math Coprocessor Support

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First post, by mwdmeyer

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Hi Guys,

Just a quick post. I always wanted to work out what support SimCity 2000 had for FPUs. I could never find anything specific.

Anyway I got Claude to decompile the SC2000.exe file and this is the result:
For periodic tasks such budget, graphs, terrain generation and loading a city the FPU is used, but the standard gameplay/scenario/simulation the FPU does not seem to be used at all.

I posted a little bit more info on my blog:
https://michaeldale.com.au/archive/2026/06/07 … y-use-your-fpu/

Claude suggested I hook it up in an emulator and compare the CPU cycles to be 100% sure but I haven't done this yet.

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Reply 1 of 3, by Grzyb

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It's like the first SimCity, isn't it?

In 2003, I voted in favour of joining the European Union. However, due to recent developments - especially the restrictions on cash usage - I'm hereby withdrawing my support. DOWN WITH THE EU!

Reply 2 of 3, by mwdmeyer

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Grzyb wrote on 2026-06-13, 00:04:

It's like the first SimCity, isn't it?

2000 is the second one, SimCity (Classic) is the first one, not sure about that one.

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Reply 3 of 3, by Grzyb

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OK, found it - Interesting findings with simcity classic

So, both the Classic and the 2000 behave alike - FPU doesn't affect normal gameplay, but speeds up budget calculation.

In 2003, I voted in favour of joining the European Union. However, due to recent developments - especially the restrictions on cash usage - I'm hereby withdrawing my support. DOWN WITH THE EU!

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