Emulator tests

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Test ROMs that may be helpful for developing an emulator.



  • Forum thread: "Writing $4203 twice too fast gives erroneous result (not emulated)" - contains some tests for obscure multiplier behaviour, work in progress.


ROM Author Notes
gradient-test NovaSquirrel Test of CGWSEL to demonstrate inaccurate emulator behaviour.
Two Ship rainwarrior Comparing mode 5 + interlacing against mode 1 graphics.
PPU bus activity lidnariq Demonstrates all modes 0-6 on a single screen.
Elasticity rainwarrior Mode 3 techniques for improving color depth beyond 8bpp.


ROM Author Notes
ctrltest rainwarrior Generic controller read test.
mset rainwarrior Mouse peripheral test.

See Also