I am just wondering why the cycle count for the nestest rom golden log goes from:
line 46: CYC: 333
line 47: CYC: 1
Is this something my emulator should be doing?
Why does nestest cycle count reset to 0?
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Re: Why does nestest cycle count reset to 0?
CYC is measuring PPU X coordinate. It should range from 0 through 340.
Re: Why does nestest cycle count reset to 0?
thanks for the response . I am just trying to test my CPU at this moment and haven't started the PPU yet. Should I just print cycleCount % 341?lidnariq wrote:CYC is measuring PPU X coordinate. It should range from 0 through 340.
Re: Why does nestest cycle count reset to 0?
PPU cycles are three times as fast as CPU cycles, e.g. "LDA #0" will cause the CYC count to increase by 6. But otherwise that's ... probably safe?
Re: Why does nestest cycle count reset to 0?
Just ignore the CYC value when you compare the logs.
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