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Last updated on Oct-18-2019 Download

Anyone ever written a HW Test Program?

Anyone ever written a HW Test Program?
by on (#54038)
Was curious if anyone had written a Test Mode for the NES to make sure the HW is running ok. Anything like that available with Source?

Looking for something that would test onboard RAM for the CPU and PPU specifically. Would be nice if there was an all inclusive one where you could test for Controller Inputs, Display PPU Palette, Sound, and probably some other stuff I'm missing.
Re: Anyone ever written a HW Test Program?
by on (#54044)
2600 wrote:
Was curious if anyone had written a Test Mode for the NES to make sure the HW is running ok. Anything like that available with Source?

A couple existing dumps of NES diagnostic carts exist. These were used by Nintendo authorized service centers to determine the cause of hardware failure. (These are also entirely distinct from the test cases used to measure an emulator's accuracy.)

by on (#54046)
Thanks I came across those recently and for the most part would do what I want. Would be nice to have one with Source so I could more easily modify it to add other HW tests.

Also, don't worry I would be testing real HW here.