Jeff Katz

I would be super interested in tiny unit tests for each mapper. They'd have to be 6502, and the unit test suite would load each up. Then they would run...

I found a fairly exhaustive set of tests called "Holy Diver Batman" It covers SxROM (1), UxROM (2), TxROM (4), AxROM (7), PNROM (9), FxROM (10), INL-ROM Action 53 (28),...

Note: seems MMC1 and MMC3 fails the holy diver tests More on testing here: https://wiki.nesdev.com/w/index.php/Emulator_tests

Also good targets for testing: http://wiki.nesdev.com/w/index.php/Tricky-to-emulate_games

Here's some pictures. Note that MMC3 has some issues as well. Not quite sure what's up with Mapper 7 http://imgur.com/a/0gX6G

Do you mean emulating battery-backed ram, or save states, or both?

Is the problem "Extreme choppyness?" if so, I am experiencing this and will investigate.

Issue still present on my machine: Linux galium 4.8.3-1-ARCH #1 SMP PREEMPT Thu Oct 20 19:53:59 CEST 2016 x86_64 GNU/Linux Compiler: clang version 3.8.1 (tags/RELEASE_381/final) Computer: Thinkpad L460 Here's a...

I started to poke around a bit. When I run the APU for twice as many cycles, it seems to be better. When I run it at a lower sample...

Interesting thread on NESDev forum about the need for an open source emulator that runs nicely in *nix/osx and has a good debugger: http://forums.nesdev.com/viewtopic.php?f=5&t=14728