this post was submitted on 09 May 2025
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[–] BarbecueCowboy@lemmy.dbzer0.com 17 points 1 day ago (2 children)

That one is about Chris Sawyer. He'll remind people that there was a bit of C in there, but 99% x86 assembly / machine code in his words.

[–] paris@lemmy.blahaj.zone 4 points 14 hours ago

For anyone interested in why, C was new and didn't yet optimize to the same level that a clever and experienced human could optimize Assembly. IIRC, by the time he was developing Roller Coaster Tycoon, C compiler optimization was on par with human Assembly optimization, so it was the last notable game written entirely in Assembly for optimization purposes.

I think this was the video I watched where I learned this: https://youtu.be/0JouTsMQsEA

[–] Clbull@lemmy.world 13 points 1 day ago (1 children)

I think he only used C to build the installer. The rest was coded in x86 assembly.

Building anything in x86 assembly is a gargantuan effort, but then Chris Sawyer built a game on the same level of scale as RollerCoaster Tycoon...

[–] mriswith@lemmy.world 3 points 23 hours ago* (last edited 21 hours ago)

There is some C in the game as well:

It's 99% written in x86 assembler/machine code (yes, really!), with a small amount of C code used to interface to MS Windows and DirectX.

https://web.archive.org/web/20201108105209/http://www.chrissawyergames.com/faq3.htm