alt Hacker NewsI think the article says the same. The gba port is impressive.
I guess FPU would not be even required with 120 pix horizontal resolution.
CM33 does in a single cycle even more: 2 16 bits multiplications, addition and accumulation, for instance.
Still it is the first time the "full" Quake was ported in less than 300 kB.
Agreed on other counts except for FPU.
Quake performs one FPU divide per pixel for texture mapping perspective correction.
ARM7TDMI does not have any kind of divide, so perspective correction is tricky, even if it's just 120 px horizontally.