https://github.com/asiekierka/chips1

CHIP-8 emulator for WonderSwan
https://github.com/asiekierka/chips1

Last synced: about 1 month ago
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CHIP-8 emulator for WonderSwan

• Host: GitHub
• URL: https://github.com/asiekierka/chips1
• Owner: asiekierka
• License: mit
• Created: 2023-07-20T18:50:24.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2024-06-13T17:39:16.000Z (6 months ago)
• Last Synced: 2024-10-13T06:24:28.084Z (2 months ago)
• Language: Roff
• Size: 300 KB
• Stars: 4
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-wsdev - Chips1 - CHIP-8/SuperCHIP emulator. (Source code / Other programs)

README

        
# Chips1

CHIP-8 emulator for the WonderSwan (80186-compatible CPU core, 2bpp 8x8 tiles). Pronounced "chips-one", or "chips-wan".

Built using [Wonderful](https://wonderful.asie.pl). Licensed under the terms of the MIT license.

## Building

Requires `target-wswan`, `wf-lua`, `wf-lzsa`, `wf-superfamiconv`.

* Edit `game_list.txt` to configure games.

* To add a new game, add a file to `cbin/N/` (any sub-directory `N`), then re-run `./compress_games.sh`.

* To update graphics (`assets/`): `./convert_assets.sh`.

* To build the ROM: `make`.

## Accuracy/Compatibility

### CHIP-8

| Feature/Quirk | Supported? |

| - | - |

| Standard opcodes | ✅ (except RCA 1802 execution) |

| Quirk: AND/OR/XOR flag reset | ✅ |

| Quirk: Load/store register changes I | ✅ |

| Quirk: Display wait | - |

### SUPER-CHIP 1.1

Note that the quirks specific to SUPER-CHIP 1.0 are not supported.

| Feature/Quirk | Supported? |

| - | - |

| Scroll down (00CN) | ✅ |

| Scroll left/right (00FC, 00FB) | - |

| Halt (00FD) | ✅ |

| Hi-resolution mode (00FE, 00FF) | ✅ |

| => Count collision rows (DXYN) | ✅ |

| Draw 16x16 sprite (DXY0) | ✅ |

| Large font (FX30) | ✅ |

| Load/store RPL user flag (FX75, FX85) | ✅ |

| Quirk: Load/store register | Leaves I unchanged |

| Quirk: BXNN jumps | ✅ |

| Quirk: SHL/SHR uses Vx | ✅ |

| Quirk: Screen not erased on mode change | ✅ |

### XO-CHIP

| Feature/Quirk | Supported? |

| - | - |

| Scroll up (00DN) | ✅ |

| Load/store register (5XY2, 5XY3) | ✅ |

| Large address space (F000 NNNN) | ✅ (memory limit, see below) |

| Two-plane drawing (FN01) | - (stub) |

| Custom audio samples (F002) | - (stub) |

| Pitch register (FX3A) | ✅ |

| Quirk: 16-register RPL user flag load/store | ✅ |

| Quirk: Mode change clears screen | ✅ |

| Quirk: Sprite draw wrapping | - |

### Octo

| Feature/Quirk | Supported? |

| - | - |

| Halt (0000) | - |

| Quirk: DXY0 draws low-res 16x16 sprite | - |

| Quirk: FX30 supports all hex characters | ✅ |

### Miscellanous

| Feature/Quirk | Supported? |

| - | - |

| Stack size | 16 entries |

| Maximum memory size (CHIP-8/SUPER-CHIP) | 4 KB |

| Maximum memory size (XO-CHIP | 45.5 KB (64 KB expected) |