zanacandClaude Opus 5.5
34988bc120
Replaces the old namcos22 driver (no DSPs, every game not working) with a C89 backport of the current MAME driver: - new Namco C71 core (TMS320C25 with internal ROM) for the master and slave DSPs: MAME's tms320c2x instructions, a page table memory system; - Super System 22 (68EC020, M37710 MCU with C352 and MB87078 volume) and System 22 (68020, C74 MCU with internal BIOS); - the video: display list simulation, z-sorted polygons and sprites, text layer, fog, fades, alpha, spot RAM, gamma; MAME's rasterizer rules, single threaded, with 1/z every 8 pixels and fast paths; - the "Threaded Video" option (was "ST-V Threaded Video") draws the frame in bands on 2 to 4 threads (3D scene, text layer, mix, gamma), same picture; - M37710: timer A event counters count up or down (output pin or up/down register, as MAME), for the Prop Cycle pedal and the Armadillo Racing trackball; - C352: optional routing of the four outputs to the stereo stream (rear speakers, cabinet speakers), as current MAME maps them to stereo; off unless a driver asks for it, System 11/12 unchanged; - game I/O as MAME: driving games and Cyber Commando on System 22, Alpine Racer steplock motor, Alpine Surfer ROM banking, Armadillo Racing trackball, default EEPROMs. System 22 sets (namcoc74 BIOS): ridgerac, ridgeraca, ridgeracb, ridgeracc, ridgeracj, ridgera2, ridgera2j, ridgera2ja, ridgera28, cybrcomm, raverace, raveracej, raveraceja, acedrive, victlap, victlapa, victlapj. Super System 22 sets: alpinerd, alpinerc, alpinerjc, airco22b, cybrcycc, cybrcyccj, dirtdash, dirtdasha, dirtdashb, dirtdashj, timecris, timecrisa, timecrisj, propcycl, propcyclj, alpines, tokyowar, tokyowarj, aquajet, alpinr2b, alpinr2a, adillor, adillorj. Claude-Session: https://claude.ai/code/session_01N3fzdsnzkQVtgYtYzqepjX Co-authored-by: Claude Opus 5.5 <[email protected]>
What is MAME 2003-Plus?
MAME 2003-Plus (also referred to as MAME 2003+ and mame2003-plus) is a libretro arcade system emulator core with an emphasis on high performance and broad compatibility with mobile devices, single board computers, embedded systems, and similar platforms.
In order to take advantage of the performance and lower hardware requirements of an earlier MAME architecture, MAME 2003-Plus began with the MAME 2003 codebase which is itself derived from xmame 0.78. Upon that base, MAME 2003-Plus contributors have backported support for an additional 350 games, as well as other functionality not originally present in the underlying codebase.
What games are supported?
View our live compatibility table built using datmagic, a tool created by the MAME 2003-Plus team. Datmagic auto-generates a compatibility table based on the latest XML DAT file. See an incorrect entry? Create a new issue to let us know! This allows us to keep the compatibility table as accurate as possible by fixing it at the source.
Authors: MAMEdev, MAME 2003-Plus team, et al (see LICENSE.md and CHANGELOG.md)
Documentation
User documentation for MAME 2003-Plus can be found in the libretro core documentation library.
Developer documentation can be found in the MAME 2003-Plus wiki.
Development chat
#programming channel of the libretro discord chat server.
Romsets and how to build them for this core
mame2003-plus was originally built from the MAME 0.78 codebase, meaning that 95% or more of MAME 0.78 romsets will work as-is in mame2003-plus, where they immediately benefit from its bugfixes and other improvements. In order to play the new games and games which received ROM updates in mame2003-plus, you will need to find or build the correct romsets.
Read more about rebuilding romsets in the libretro core documentation for mame2003-plus.