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0 pointspdw4y ago0 comments

The Game Boy doesn't use a Z80 though. It's based on a SM83 core, an obscure Sharp design.

0 comments

It's essentially a stripped Z80 without the DD-, ED- and FD-prefix instruction ranges. The core instruction block and CB-prefix range is (nearly) the same.

busterarm4y ago

See the other responses, but my comment was really suggesting that if LLVM barely supports Z80 then the GameBoy CPU is a hopeless lost cause.

detaro4y ago

True, but the instruction set is very close, so a Z80 implementation is a good starting point.

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flohofwoe4y ago

It's essentially a stripped Z80 without the DD-, ED- and FD-prefix instruction ranges. The core instruction block and CB-prefix range is (nearly) the same.

busterarm4y ago

See the other responses, but my comment was really suggesting that if LLVM barely supports Z80 then the GameBoy CPU is a hopeless lost cause.

detaro4y ago

True, but the instruction set is very close, so a Z80 implementation is a good starting point.

j / k navigate · click thread line to collapse