jsmoo
Multi-system, pure JavaScript (& a little AssemblyScript) emulator, with great accuracy and speed. Currently some SNES, NES, GameBoy, Master System, ZX Spectrum, and GameGear support (by raddad772)
ProcessorTests
A language-agnostic JSON-encoded instruction-by-instruction test suite for the 8088, 68000, 65816, 65[c]02 and SPC700 that includes bus activity. (by TomHarte)
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| jsmoo | ProcessorTests | |
|---|---|---|
| 31 | 22 | |
| 68 | 179 | |
| - | - | |
| 7.1 | 7.6 | |
| about 1 month ago | 4 months ago | |
| JavaScript | JavaScript | |
| MIT License | - |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
jsmoo
Posts with mentions or reviews of jsmoo.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-12-06.
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Best compiler to write .nes cartridge ROMs for testing my own emulator?
If you really want to use it, I have a bad 65816 assembler at https://github.com/raddad772/jsmoo/blob/main/component/cpu/wdc65816/wdc65816_assembler.js . Just don’t switch it to 65816 mode and it should produce compatible code. I wrote it as a pile of hacks on top of each other and you still need to add an iNES header.
- Starting Game Boy emulator, need a little insight
- Snes, Nes, GameBoy and A26 emulator.
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Trouble with GB Joypad Input
If you want to really verify your CPU, check out https://github.com/raddad772/jsmoo/tree/b3807b55f03cdad2191810b2a770781d73c41870/misc/tests/GeneratedTests/sm83 , a set of 1000 tests per opcode, cycle by cycle, including read and write bus activity, in JSON format. It’s a bit of work to integrate them but there’s no better CPU test. Also you can generate more if you want to by using the code generation portion of the codebase. The only thing it doesn’t really test well is IRQ/halt stuff. It’s pretty common for folks to pass Blargg and still have things uncovered here. Usually things Blargg can’t test, or symmetric errors (flag both set and tested wrong), or corner cases Blargg didn’t think of.
- Help with some roadblocks on my Gameboy emulator.
- Dialogue glitches in The Legend of Zelda Links Awakening
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ZexDoc Hanging
https://github.com/raddad772/jsmoo/tree/main/misc/tests/GeneratedTests/z80 will troubleshoot any issues you have with instructions.
- Why is everybody implementing GameBoy's opcode CD differently?
- Cycle boundary in cycle-exact emulators
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CHIP8 in Vanilla Javascript
Where? If you want to check out other vanilla JavaScript emulators, https://github.com/raddad772/jsmoo
ProcessorTests
Posts with mentions or reviews of ProcessorTests.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-04-17.
- Test suit for some emulated CPU like 6502 and 68000
- NES Test LDA - I think the test ROM is wrong
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My nestest.log mismatches with the original one.
If you want to test processor only, use https://github.com/TomHarte/ProcessorTests/tree/main/6502
- Test files for the Commodore 64 and the MOS 6510.
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Conflicting info
Unit tests! Here are mine.
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Announcing Z80 unit tests
As part of development of JSMoo, my multi-system emulator, I implemented a series of 1,000+ tests per possible valid opcode (including undocumented opcodes). These tests are inspired by the amazing work of Tomas Harte at https://github.com/TomHarte/ProcessorTests , and after some people exercise them a bit I'd like it to be integrated there if he agrees.
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ANNOUNCE: 68000 test cases
I have added slightly more than a million 68000 test cases to my processor test collection.
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SNES Mode 7 scaler and scroller working.....
Verify your 65816 and spc700 cores with this: https://github.com/TomHarte/ProcessorTests I contributed the spc700 tests and worked to improve and validate the 65816 tests. Neither core has had a single issue in any game so far.
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Sad Mac.... 68000 MacPlus ROM first boot
I've yet really to go to town on producing public 68000 resources, but my limited contribution is: a complete list of [mostly-]decoded official 68000 instructions.
- Tips for locating source of bug?
What are some alternatives?
When comparing jsmoo and ProcessorTests you can also consider the following projects:
WinUAE - WinUAE Amiga emulator
6502-npp-syntax - Notepad++ Syntax Highlighting for 6502 Assembly (and NESASM)
kernal64 - A Scala Commodore 64, 128, VIC20, CBM2 and SuperCPU emulator
SNES - SNES Assembly Programming
CHIP8-Interpreter-Vanilla-Javascript
tenes - NES Emulator for Linux
chippy - Chip8 emulator written in python using pygame
six5go2 - First attempt at a MOS Technology 6502 CPU Emulator in Go
melonDS - DS emulator, sorta
Moira - A Motorola 68000 emulator written in C++
vAmigaTS - The vAmiga Test Suite