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Checklist: - [ ] 10-Yard Fight - [ ] Mach Rider (PRG0) - [ ] Soccer - [ ] Dragon Quest II - [ ] Magmax - [ ] Wild...

I think that within the scope of this Issue it is enough to run `blargg's cpu_instrs test` and rest easy on that.

https://github.com/retrio/gb-test-roms/tree/master/cpu_instrs

Replaced JP 0x100 from address 0 to go to ROM entrypoint. Something is happening: ![image](https://github.com/emu-russia/dmgcpu/assets/5828819/318e6ff2-5c96-4bee-b94e-d53463ac9473)

I don't know how many years it will take to run a full test, but 100,000 cycles took about 20 minutes. So I don't know how to test it all.......

The strategy for this task changes again. We will test each opcode separately, since the simulation speed is too slow.

The methodology is worked out more or less: - Instead of 1 opcode per execution, testall.asm with all SM83 opcodes is run - A pool of signals is formed for...

Ha! It's all been done before us: https://github.com/SingleStepTests/sm83

@Rodrigodd performed most of the opcode verification using blargg tests, which is usually enough for core verification (from experience of using these tests in emulators). Closing :)