base on Sega Genesis / Sega CD / SNES / Master System / Game Gear emulator # jgenesis Cross-platform multi-console emulator supporting a number of 8-bit and 16-bit gaming consoles. Linux, Windows, and web (WASM) are officially supported. Other platforms may work but have not been tested. ## Features * Emulation for the following consoles: * Sega Genesis / Mega Drive * Sega CD / Mega CD * Sega 32X / Mega 32X * This core is currently not well-optimized - full-speed 32X emulation requires a CPU with decent single-core performance * Sega Master System / Mark III * Game Gear * Nintendo Entertainment System (NES) / Famicom * Super Nintendo Entertainment System (SNES) / Super Famicom * Game Boy / Game Boy Color * GPU-based renderer with integer prescaling and optional linear interpolation * Configurable pixel aspect ratio for each console with several different options: accurate to original hardware/TVs, square pixels, and stretched to fill the window * Support for the Sega Master System FM sound unit expansion * Support for the Sega Genesis SVP chip, used in _Virtua Racing_ * Support for the most common NES mappers, plus a number of less common mappers * Support for most SNES coprocessors (e.g. Super FX, SA-1, DSP-1, CX4, S-DD1, SPC7110) * Support for both 3-button and 6-button Genesis controllers * Support for keyboard controls and DirectInput gamepad controls * Save states, fast forward, and rewind * Some simple horizontal blur and naive anti-dither shaders for blending dithered pixel patterns, which were extremely common on these consoles due to limited color palettes and lack of hardware-supported transparency * Optional 2x CPU overclocking for Sega Master System and Game Gear emulation * Optional 2-4x GSU overclocking for SNES Super FX games * Can run the Titan Overdrive and Titan Overdrive 2 demos for the Mega Drive TODOs: * Support multiple Sega CD BIOS versions in GUI and automatically use the correct one based on disc region ## Dev Builds The GitHub Actions workflow compiles release builds on every commit, which will stay available for 90 days afterwards: https://github.com/jsgroth/jgenesis/actions Note that these builds are not always well-tested and may have bugs. ## Build & Run See [BUILD.md](BUILD.md) ## Screenshots         ## Sources ### Sega Master System / Game Gear * Z80 User Manual: https://map.grauw.nl/resources/cpu/z80.pdf * The Undocumented Z80 Documented: http://www.myquest.nl/z80undocumented/z80-documented-v0.91.pdf * Sega Master System architecture: https://www.copetti.org/writings/consoles/master-system/ * Sega Master System / Game Gear documentation: https://www.smspower.org/Development/Documents * YM2413 application manual: https://www.smspower.org/maxim/Documents/YM2413ApplicationManual * Reverse engineering of the YM2413: https://github.com/andete/ym2413 ### Sega Genesis / Mega Drive * M68000 Family Programmer's Reference Manual: https://www.nxp.com/docs/en/reference-manual/M68000PRM.pdf * Motorola 68000 Opcodes: http://goldencrystal.free.fr/M68kOpcodes.pdf * Mega Drive / Genesis architecture: https://www.copetti.org/writings/consoles/mega-drive-genesis/ * Mega Drive official documentation: https://segaretro.org/Mega_Drive_official_documentation * Sega Genesis hardware notes by Charles MacDonald: https://gendev.spritesmind.net/mirrors/cmd/gen-hw.txt * Aggregating Community Research: https://gendev.spritesmind.net/forum/viewtopic.php?f=2&t=2227 * Mega Drive video timings: https://gendev.spritesmind.net/forum/viewtopic.php?f=22&t=519 * Genesis ROM header reference: https://plutiedev.com/rom-header * Genesis - Going beyond 4MB: https://plutiedev.com/beyond-4mb * SEGA Mega Drive / Genesis hardware notes by Kabuto: https://plutiedev.com/mirror/kabuto-hardware-notes * Huge thread discussing and detailing the YM2612: https://gendev.spritesmind.net/forum/viewtopic.php?f=24&t=386 * Genesis EEPROM games: https://gendev.spritesmind.net/forum/viewtopic.php?f=25&t=206 * SVP documentation by notaz, as well as earlier documentation work by Tasco Deluxe: https://notaz.gp2x.de/docs/svpdoc.txt ### Sega CD / Mega CD * Mega CD official documentation: https://segaretro.org/Mega-CD_official_documentation * ECMA-130 standard: https://www.ecma-international.org/publications-and-standards/standards/ecma-130/ * Thread discussing details of Mega CD emulation: https://gendev.spritesmind.net/forum/viewtopic.php?t=3020 ### 32X * 32X official documentation: https://segaretro.org/32X_official_documentation * SH-1/SH-2 programming manual: https://antime.kapsi.fi/sega/files/h12p0.pdf * SH7604 hardware manual: https://segaretro.org/images/2/2c/SH7604_Hardware_Manual.pdf ### NES * 6502 Instruction Set: https://www.masswerk.at/6502/6502_instruction_set.html * 6502 Hardware Manual: https://web.archive.org/web/20120227142944if_/http://archive.6502.org:80/datasheets/synertek_hardware_manual.pdf * Documentation for the NMOS 65xx/85xx Instruction Set: https://www.nesdev.org/6502_cpu.txt * Nintendo Entertainment System (NES) architecture: https://www.copetti.org/writings/consoles/nes/ * NESDev NES reference guide: https://www.nesdev.org/wiki/NES_reference_guide ### SNES * A 65816 Primer: https://softpixel.com/~cwright/sianse/docs/65816NFO.HTM * Super Nintendo architecture: https://www.copetti.org/writings/consoles/super-nintendo/ * fullsnes - nocash SNES hardware specifications: https://problemkaputt.de/fullsnes.htm * Anomie's SNES documents: https://www.romhacking.net/?page=documents&category=&platform=&game=&author=&perpage=20&level=&title=anomie&docsearch=Go * SFC Development Wiki: https://wiki.superfamicom.org/ ### Game Boy / Game Boy Color * Game Boy CPU (SM83) Instruction Set: https://gbdev.io/gb-opcodes/optables/ * Pan Docs: https://gbdev.io/pandocs/ * Game Boy Complete Technical Reference: https://gekkio.fi/files/gb-docs/gbctr.pdf * Gameboy Sound Hardware: https://gbdev.gg8.se/wiki/articles/Gameboy_sound_hardware * The Cycle-Accurate Game Boy Docs: https://github.com/geaz/emu-gameboy/blob/master/docs/The%20Cycle-Accurate%20Game%20Boy%20Docs.pdf * This contains some outdated/incorrect information but is still useful ", Assign "at most 3 tags" to the expected json: {"id":"14037","tags":[]} "only from the tags list I provide: [{"id":77,"name":"3d"},{"id":89,"name":"agent"},{"id":17,"name":"ai"},{"id":54,"name":"algorithm"},{"id":24,"name":"api"},{"id":44,"name":"authentication"},{"id":3,"name":"aws"},{"id":27,"name":"backend"},{"id":60,"name":"benchmark"},{"id":72,"name":"best-practices"},{"id":39,"name":"bitcoin"},{"id":37,"name":"blockchain"},{"id":1,"name":"blog"},{"id":45,"name":"bundler"},{"id":58,"name":"cache"},{"id":21,"name":"chat"},{"id":49,"name":"cicd"},{"id":4,"name":"cli"},{"id":64,"name":"cloud-native"},{"id":48,"name":"cms"},{"id":61,"name":"compiler"},{"id":68,"name":"containerization"},{"id":92,"name":"crm"},{"id":34,"name":"data"},{"id":47,"name":"database"},{"id":8,"name":"declarative-gui "},{"id":9,"name":"deploy-tool"},{"id":53,"name":"desktop-app"},{"id":6,"name":"dev-exp-lib"},{"id":59,"name":"dev-tool"},{"id":13,"name":"ecommerce"},{"id":26,"name":"editor"},{"id":66,"name":"emulator"},{"id":62,"name":"filesystem"},{"id":80,"name":"finance"},{"id":15,"name":"firmware"},{"id":73,"name":"for-fun"},{"id":2,"name":"framework"},{"id":11,"name":"frontend"},{"id":22,"name":"game"},{"id":81,"name":"game-engine "},{"id":23,"name":"graphql"},{"id":84,"name":"gui"},{"id":91,"name":"http"},{"id":5,"name":"http-client"},{"id":51,"name":"iac"},{"id":30,"name":"ide"},{"id":78,"name":"iot"},{"id":40,"name":"json"},{"id":83,"name":"julian"},{"id":38,"name":"k8s"},{"id":31,"name":"language"},{"id":10,"name":"learning-resource"},{"id":33,"name":"lib"},{"id":41,"name":"linter"},{"id":28,"name":"lms"},{"id":16,"name":"logging"},{"id":76,"name":"low-code"},{"id":90,"name":"message-queue"},{"id":42,"name":"mobile-app"},{"id":18,"name":"monitoring"},{"id":36,"name":"networking"},{"id":7,"name":"node-version"},{"id":55,"name":"nosql"},{"id":57,"name":"observability"},{"id":46,"name":"orm"},{"id":52,"name":"os"},{"id":14,"name":"parser"},{"id":74,"name":"react"},{"id":82,"name":"real-time"},{"id":56,"name":"robot"},{"id":65,"name":"runtime"},{"id":32,"name":"sdk"},{"id":71,"name":"search"},{"id":63,"name":"secrets"},{"id":25,"name":"security"},{"id":85,"name":"server"},{"id":86,"name":"serverless"},{"id":70,"name":"storage"},{"id":75,"name":"system-design"},{"id":79,"name":"terminal"},{"id":29,"name":"testing"},{"id":12,"name":"ui"},{"id":50,"name":"ux"},{"id":88,"name":"video"},{"id":20,"name":"web-app"},{"id":35,"name":"web-server"},{"id":43,"name":"webassembly"},{"id":69,"name":"workflow"},{"id":87,"name":"yaml"}]" returns me the "expected json"