gb-test-roms
Collection of Game Boy test roms. (by retrio)
CLK
A latency-hating emulator of: the Acorn Electron and Archimedes, Amstrad CPC, Apple II/II+/IIe and early Macintosh, Atari 2600 and ST, ColecoVision, Enterprise 64/128, Commodore Vic-20 and Amiga, MSX 1/2, Oric 1/Atmos, early PC compatibles, Sega Master System, Sinclair ZX80/81 and ZX Spectrum. (by TomHarte)
gb-test-roms | CLK | |
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17 | 22 | |
429 | 887 | |
4.0% | - | |
0.0 | 9.9 | |
almost 9 years ago | 5 days ago | |
Assembly | C++ | |
- | 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.
gb-test-roms
Posts with mentions or reviews of gb-test-roms.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-06-08.
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What's everyone working on?
Make sure you incorporate testing your implementation with test roms: https://github.com/retrio/gb-test-roms Do this as early in the project as possible. This will save you a huge migraine later on.
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Some GameBoy games running at half speed
Have you tested your emulator against blargg's instruction timing test ROM? I believe this one only checks cycle counts, not memory timings: https://github.com/retrio/gb-test-roms/tree/master/instr_timing
- Need some help on how to progress with my gameboy emulator after opcodes.
- Getting weird desync on Super Mario Land (GB) between the attract mode and real gameplay. Any ideas?
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Me again... Blarg's Gameboy test ROM
Yeah the source for cpu_instrs is in github. https://github.com/retrio/gb-test-roms/tree/master/cpu_instrs/source
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What memory address do I load Blaargs test ROMs into? Is it 0x0100?
I actually have a question about this. I've been building a Gameboy emulator, the CPU works but when it runs the RET instruction the PC jumps to some really high address like 0x2000 or something when it's meant to jump to somewhere around 0x400 instead (after comparing it with another GB emulator). I think the RET address is meant to be read from HRAM, where the stack is stored, but when I look there it is the value around 0x2000 like I mentioned earlier. Are there any special quirks with this section of memory that I might not have implemented? I'm pretty much just reading and writing from an array for HRAM at the moment. I'm having the issue on one of blarggs cpu-instrs test roms https://github.com/retrio/gb-test-roms/blob/master/cpu_instrs/cpu_instrs.gb
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Best documentation for the details?
So just start with implementing the CPU's fetch/decode/execute loop and a rudimentary memory bus, so that you can run simple test ROMs. You don't even need a display for many test ROMs (like Blargg's well-known test suite, which writes the results to the serial port as well as the display). After that you can do test-driven development (in a way) and focus on making more and more tests pass. Don't worry about details until you need to.
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Gameboy emulator blargg test 02 EI failed #2
It looks like the test enables interrupts and then invokes the timer interrupt.
- Gameboy Blargg test 03 - Infinite loop
- [GameBoy] Problem with CD instruction.
CLK
Posts with mentions or reviews of CLK.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-08-01.
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Bit random but does anyone know how possible it is to get this look within Stella? [Pallete/TV Effects].
Not Stella, but the Clock Signal emulator does a great job of emulating the TV effects. The 2600 emulation isn't quite as good as Stella, though.
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Giveaway: Mac Plus with Hard Disk 20 - Chicago area
I’ll be visiting Chicago on the 9th for a single night, and the author of this Mac Plus emulator which attempts to be cycle-accurate and therefore it’d be really great to have a real machine to test against… but I’m clueless at electrical work. So factor that in re: the retirement that the machine be used by its direct recipient.
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Of the more rarely seen here: the Apple II, why not?
The repository is here; binary releases for the Mac are in the appropriate section though HDV support and a few other relevant tweaks haven’t made it into a release yet so you can’t yet run Total Replay as shown. You’d probably need to use disk images.
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Looking for target for next project
Caveats being stated: https://github.com/tomharte/CLK
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Vi-mode for your Apple II prompt
Thanks for the confirmation! I just wrote an Issue. I hope Tom gets it sorted out. I normally use OpenEmulator on the Mac but I like the simplicity of CLK and would like to make it my main emulator.
- Clock Signal: an emulator for tourists that seeks to be invisible
- TomHarte/CLK: A latency-hating emulator of 8- and 16-bit platforms: the Acorn Electron, Amstrad CPC, Apple II/II+/IIe and early Macintosh, Atari 2600 and ST, ColecoVision, Enterprise 64/128, Commodore Vic-20 and Amiga, MSX 1, Oric 1/Atmos, Sega Master System, Sinclair ZX80/81 and ZX Spectrum.
- Clock Signal ('CLK') is an emulator for tourists that seeks to be invisible
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But does it run Doom? Ummm, not exactly.
It's available via GitHub but fair warning: it's a large project and is the one I used to learn modern C++ so some of the older parts of it aren't fantastic.
What are some alternatives?
When comparing gb-test-roms and CLK you can also consider the following projects:
mooneye-gb - A Game Boy research project and emulator written in Rust
zx-sizif-512 - ZX Spectrum CPLD-based clone for rubber case
jitboy - A Game Boy emulator with dynamic recompilation (JIT)
qemu
Ryujinx - Experimental Nintendo Switch Emulator written in C#
GBA - Game Boy Advance Bare Metal Assembly Programming
dmg-acid2 - 😀 The Acid2 test, now for the original Game Boy! 😀
decaf-emu - Researching Wii U emulation.
moa - An emulator for various m68k and z80 based computers, written in Rust. Currently it has support for the Sega Genesis, TRS-80, and Computie (my own project), with Macintosh support in the works
gba-tests - A collection of Game Boy Advance tests.
rlengine-msx1 - RetroDeluxe Game Engine for MSX computers