Peripherals

• rtctest - "2003 mapper + S-3511" RTC protocol and behaviour
• WSCPUTest - V30MZ CPU behaviour
• WSHWTest - SoC interrupt/PPU timer handling
• WSTimingTest - V30MZ CPU timing
• ws-test-suite - asie's assorted hardware tests and testing tools
• Robert Peip's test ROMs - sprite priority/window testing tool

Datasheets

• NEC V30MZ Preliminary User's Manual
• Seiko S-3511A - cartridge RTC.
• Fujitsu MBM29DL400TC - WonderWitch NOR flash.
• Seiko S-3511A - cartridge RTC.
• NEC V30MZ Preliminary User's Manual
• NEC V30MZ Preliminary User's Manual

Getting started

• STSWS - contains some information not yet on the WSdev wiki.
• WSMan - older documentation source.

Other documentation

• splashbuilder readme - WonderSwan Color custom boot splash format.

WonderSwan hardware

• STSWS - contains some information not yet on the WSdev wiki.
• ws.nesdev.org wiki - the most recent and actively developed documentation source, the WSdev wiki!
• WSMan - older documentation source.
• Retail cartridges - cartridge logic analyzer and requirement documentation.

Console

• ares
• Mednafen - 2.0) - supports WonderWitch and serial port emulation.
• WonderDroid Ultra - 2.0) - Mednafen wrapper for Android phones.
• NitroSwan - WonderSwan emulator for Nintendo DSi.
• StoicGoose - C#-based WonderSwan emulator.

Other documentation

• BizHawk - WonderSwan core based on Mednafen, features Lua scripting and rewind/movie support.
• wf-mednafen - fork of Mednafen with emulation fixes and debugger UI/UX improvements, based on mednafenPceDev's work.
• SwanGBA - GBA version of the above, does not run at full speed.
• Mesen 2 - 3.0) - high accuracy, extensive built-in debugger and profiler, recommended for development.
• wf-mednafen - fork of Mednafen with emulation fixes and debugger UI/UX improvements, based on mednafenPceDev's work.
• SwanGBA - GBA version of the above, does not run at full speed.

Peripheral emulators

• WonderFence - MobileWonderGate internet adapter emulator.

Peripherals

• WonderFence - MobileWonderGate internet adapter emulator.

Cartridges

• mbc-unlock - VHDL boot handshake implementation.
• Bandai2003 - Verilog "2003" mapper implementation.
• nileswan - Open-source flash cartridge.
• USB WonderSwan Cartridge Utility - cartridge dumper and programmer.

Other hardware development

• WonderSwan for MiSTer - 2.0)
• wsheadphone - BY-NC-SA-4.0) - Headphone DAC adapter.
• WSMtool - BY-NC-SA-4.0) - A multitool adapter for the WonderSwan. Headphone, serial and link cable adapter in one.

Screen capture

• nisetro_wsc - FPGA-based screen capture solution.
• swancolorHD - FPGA-based screen capture solution.

Other hardware development

• WSTech 2.4 - outdated document, incorrect in places.

Getting started

• Wonderful Toolchain Wiki - documentation for the open-source WonderSwan/WonderWitch homebrew toolchain,
• ConsoleMods Wiki
• Wonderful Toolchain Wiki - documentation for the open-source WonderSwan/WonderWitch homebrew toolchain,

• Asuka Langley's handheld of choice
• WonderWitch
• WonderWitch

Cartridges

• nileswan - open-source flash cartridge.

Peripherals

• WS-LinkC - BY-NC-SA-4.0) - cheap, DIY-friendly link cable alternative.
• ExtFriend - 3.0) - WonderSwan EXT<->USB adapter with digital audio capture.

Screen capture

• swantroller - 3.0) - WonderSwan Color-based controller PCB for the swancolorHD.

Libraries

• libws - hardware abstraction functions
• libwsx - decompressors and other useful functions
• WonderSwan Total Sound Driver
• Cygnals - partially Furnace compatible audio driver.
• libws - hardware abstraction functions
• libwsx - decompressors and other useful functions

Peripheral emulators

• Wonderful - gcc-ia16 based C/ASM toolchain for WonderSwan and WonderWitch.
• WSLink - NASM linker outputting WonderSwan and WonderWitch compatible binaries.

Peripherals

• Wonderful - gcc-ia16 based C/ASM toolchain for WonderSwan and WonderWitch.
• Kyoui - (mirror) tools for compiling WonderSwan binaries using OpenWatcom.
• WSLink - NASM linker outputting WonderSwan and WonderWitch compatible binaries.
• owswan - OpenWatcom-based WonderSwan toolchain.

Tools

• bmp2swan - simple bitmap converter.
• Dekadence WonderSwan Tools - assorted Python scripts.
• splashbuilder - 3-Clause) - toolchain for creating custom WonderSwan Color boot splashes.
• SuperFamiconv - tile/map converter with flexible palette/optimization options and mostly-complete WS/WSC support.
• bmp2swan - simple bitmap converter.
• bmp2swan - simple bitmap converter.
• Dekadence WonderSwan Tools - assorted Python scripts.

Boilerplate

• Wonderful template - GCC/GAS-based template.
• wonder/template - NASM-based template.
• wonder/template - NASM-based template.

Demos

• #wonderwitch IRC channel promo
• Bad Apple!! for WSwan
• HBlank Cylinder Effect

Games

• Inufuto's games - written using a custom C-like toolchain.
• SwanDriving - driving-bw.html)) - tech demo written with NASM.
• WonderSnake - 3.0) - Snake game written with Borland TASM.
• Inufuto's games - written using a custom C-like toolchain.
• SwanDriving - driving-bw.html)) - tech demo written with NASM.
• WonderBreakanoid - Breakanoid-style game written with Wonderful.

Miscellaneous

• vgmswan - .VGM playback and conversion tools.

Other programs

• BootFriend - 3.0) - WonderSwan custom "firmware"/splash screen patch - XMODEM software load to RAM and more!
• wsmonitor - 80186 debug monitor.
• 144p Test Suite for WS - 3.0) - 240p Test Suite-inspired user-side testing tool
• Chips1 - CHIP-8/SuperCHIP emulator.
• ieepview - internal EEPROM viewer/editor.
• ws-backup-tool - 3.0) - cartridge backup/restore/flash tool and IPL dumper for BootFriend.
• ELKS - 2.0 + others) - Embedded Linux Kernel Subset kernel/operating system.
• BootFriend - 3.0) - WonderSwan custom "firmware"/splash screen patch - XMODEM software load to RAM and more!
• CartFriend - 3.0) - WonderSwan cartridge menu/launcher
• wsmonitor - 80186 debug monitor.

Peripheral emulators

• KarnakTest - PCv2 KARNAK timer/ADPCM mapper testing

Miscellaneous

• romwitch - 2.0) - utility to replace executables on "static" WonderWitch software images.
• MiracleMage - 2.0) - limited high-level WonderWitch emulator.
• wonderwitchvc15 - example on using Visual C++ 1.5 for compiling WonderWitch binaries.
• AthenaOS - FreyaBIOS/FreyaOS re-implementation project.
• ow-libs - WonderWitch standard library re-implementation project.

Open source WW programs

• FallingTower mini - 2-Clause)
• Nametry - 2-Clause)
• Noiz - 2.0-or-later)
• PutiPati - 2-Clause)
• Soari-san - 2-Clause)
• SpeedMac - 2-Clause)
• 米七note - 2-Clause)
• FallingTower mini - 2-Clause)
• Soari-san - 2-Clause)
• 米七note - 2-Clause)
• HummingCat - work-in-progress sound driver.

WW documentation

• Don Walizer Jr's tutorials
• wonder/doc/freya - initial Freya internals documentation.
• Don Walizer Jr's tutorials
• Wonder Witch Technical Manual
• Wonder Witch Technical Manual
• Don Walizer Jr's tutorials
• wonder/doc/freya

WW open-source homebrew

• dumpipl - WS/WSC initial program loader dumping tool (as "Soft" image).
• HummingCat - work-in-progress sound driver.
• vgmwitch - SN76489 music player.
• WWTerm - 2.0) - terminal emulator.
• yoppa - 3-Clause) - WWGP 2001 game.

WW tools

• exe2fbin - reconstruction of the official exe2fbin binary.
• romwitch - 2.0) - utility to inject executables into "static" WonderWitch software ROMs.