LR35902

gameboy cpu written in c89 with zero dependencies (no includes).

requirements

• char to equal 1 byte.

• short to equal 2 bytes.

what works

• passes all of blarggs cpu_instrs tests.

• interrupts*

• accurate* cycle timings.

what doesn't work

• interrupts are meant to be delayed, this is out of scope for this as i don't (currently) care for super accurate emulation, although i would happily accept a pr to fix this! you can read more about the delayed interrupts here as well as an example of 2 games that requires this https://mgba.io/2018/03/09/holy-grail-bugs-revisited/

• probably more stuff here...

credit

sources for opcode:

• https://github.com/izik1/gbops

• https://gbdev.io/pandocs/

final

please consider giving credit if you use any code from this repo, even as a refrence (this is not required).