feat: add 10 emulator profiles (119-series batch 2)
freeintv_ts_overlay (same BIOS as FreeIntv), bnes (NES, no BIOS),
clownmdemu (Mega Drive, open-source MCD boot ROM embedded),
m2000 (Philips P2000T, all embedded), mesen (NES, FDS + StudyBox BIOS),
race (NGP, HLE with disabled BIOS loader), vemulator (VMU, HLE only),
gw (Game & Watch, Lua simulator), pd777 (Cassette Vision, no BIOS),
play (PS2, full HLE, LoadBIOS commented out)
115 total profiles.
2026-03-17 20:15:28 +01:00
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emulator: "Game & Watch"
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type: libretro
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feat: update 47 emulator profiles with core_classification and fixes
add core_classification, cores, upstream fields. fix false aliases
(fixnes, fsuae, gearboy, higan_sfc, higan_sfc_balanced, potator,
quicknes). add new profiles (fbneo_neogeo, flycast_gles2,
genesis_plus_gx_wide). remove verbose notes and disclaimers.
2026-03-22 14:01:38 +01:00
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core_classification: pure_libretro
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feat: add 10 emulator profiles (119-series batch 2)
freeintv_ts_overlay (same BIOS as FreeIntv), bnes (NES, no BIOS),
clownmdemu (Mega Drive, open-source MCD boot ROM embedded),
m2000 (Philips P2000T, all embedded), mesen (NES, FDS + StudyBox BIOS),
race (NGP, HLE with disabled BIOS loader), vemulator (VMU, HLE only),
gw (Game & Watch, Lua simulator), pd777 (Cassette Vision, no BIOS),
play (PS2, full HLE, LoadBIOS commented out)
115 total profiles.
2026-03-17 20:15:28 +01:00
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source: "https://github.com/libretro/gw-libretro"
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2026-03-25 12:23:32 +01:00
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upstream: "http://www.madrigaldesign.it/sim/"
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profiled_date: "2026-03-25"
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2026-03-18 05:19:57 +01:00
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core_version: "Git"
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display_name: "Handheld Electronic (GW)"
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feat: add 10 emulator profiles (119-series batch 2)
freeintv_ts_overlay (same BIOS as FreeIntv), bnes (NES, no BIOS),
clownmdemu (Mega Drive, open-source MCD boot ROM embedded),
m2000 (Philips P2000T, all embedded), mesen (NES, FDS + StudyBox BIOS),
race (NGP, HLE with disabled BIOS loader), vemulator (VMU, HLE only),
gw (Game & Watch, Lua simulator), pd777 (Cassette Vision, no BIOS),
play (PS2, full HLE, LoadBIOS commented out)
115 total profiles.
2026-03-17 20:15:28 +01:00
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cores:
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- gw
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systems:
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- handheld-electronic
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notes: |
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gw-libretro runs Game & Watch simulators converted from MADrigal's Pascal
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source code via pas2lua. Each game is a self-contained .mgw archive (bzip2
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compressed tar v7) containing Lua scripts, sprites, and sound data.
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retro_get_system_info (libretro.c:187-194) sets valid_extensions to "mgw",
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need_fullpath to false, and block_extract to false. The core reads content
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entirely from the retro_game_info buffer passed by the frontend.
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retro_load_game (libretro.c:256-310) passes the content buffer to
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gwrom_init() which decompresses and parses the tar archive in memory.
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gwlua_create() then initializes the Lua VM from the archive entries.
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The core never calls RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, never opens
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files from the filesystem, and has no firmware or BIOS dependencies.
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All game data is bundled in the .mgw content files available from
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libretro's buildbot (bot.libretro.com/assets/cores/HandheldElectronicGame/).
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No external BIOS or firmware files are needed.
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files: []
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analysis:
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content_format:
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extension: ".mgw"
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archive_type: "tar v7 + bzip2"
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decompression: "gwrom.c using bundled bzip2 library"
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source_ref: "gwrom/gwrom.h:21-27"
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game_engine:
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language: "Lua (bundled lua 5.3)"
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runtime: "gwlua (gwlua/)"
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rendering: "retroluxury (retroluxury/)"
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resolution: "128x128 base, variable via gwlua_set_fb/gwlua_zoom"
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filesystem_access: false
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system_directory_used: false
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