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RetroRecomp 1.3.0 — the Neo Geo library completed, CPS-1 drawn like MAME

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@ArthurReboulSalze ArthurReboulSalze released this 24 Oct 09:29
· 17 commits to main since this release
v1.3.0
e08c6a2

RetroRecomp v1.3.0 — the Neo Geo library completed, CPS-1 drawn like MAME

  • The whole convertible Neo Geo library. Of the 135 archives in the test
    collection, 134 exact identities are qualified: nine more than 1.2.9
    (the four World Heroes, Zed Blade, Zupapa!, Tecmo World Soccer '96, Mutation
    Nation and Voltage Fighter Gowcaizer), with no observed 68000 or Z80 fallback
    on the qualified routes. Fight Fever stays out (incomplete archive). Full-game
    validation and physical latency are not measured.
  • A Mega Drive collection campaign. 132 more exact identities are qualified
    (214 in all); three keep some 68000 fallback (Brian Lara Cricket, Brian Lara
    Cricket 96, Clay Fighter). Two timing corrections: the interpreted reference
    keeps the immediate Z80 rendezvous, and the Z80 no longer runs ahead while
    the VDP's Z80 interrupt changes. Known limits: the SVP chip (Virtua Racing),
    the RESET instruction (Boxing Legends, Dragon's Revenge), an undecodable
    opcode reached in the header (Barkley).
  • CPS-1 drawn like MAME. Overlapping sprites follow MAME's order (Final
    Fight's characters pass behind objects), and a tile renderer cuts drawing
    time by ten (5.2 → 0.5 ms per frame on Windows). Three- and four-player boards
    take the third and fourth controllers (Captain Commando, The King of Dragons,
    Knights of the Round, Mercs). A DIP switches page on F2 sets each board's
    switches with MAME's names, kept per game. 26 parent sets are qualified at
    the Standard level, 25 without fallback; Street Fighter II': Champion Edition
    runs 0.06 % of its code from graphics RAM, interpreted and reported. Quick
    states now keep the sound chip's noise table (F9 on U.N. Squadron and
    Willow), and file names carry subtitles like the other consoles. Hardware
    fidelity means conformance with MAME 0.289, not with the real board.
  • A 32-bit program counter after flagged pointer jumps, shared by Neo
    Geo, CPS-1 and X68000 native code (Voltage Fighter Gowcaizer needed it).
  • X68000 sets and mice. The disks of one game, named (Disk 1 of 2),
    (Disk 2), (Disk B) in one folder, are queued once as an ordered playlist
    written under datas/x68000-sets, nothing beside the disks. Mouse controls
    come from a reviewed list of 84 collection sets (70 with a mouse) and,
    elsewhere, from the code a game executes (IOCS mouse calls or its own SCC
    driver, 1,000 reads on fresh routes). A short campaign of eight games ran
    without interpreted opcodes on the main, mouse and keyboard routes.
  • Shared knowledge. The snapshot holds 1,305 exact identities (1,164
    in 1.2.9, all byte-identical): 606 Game Boy, 258 Master System, 214 Mega
    Drive, 134 Neo Geo, 44 Super Nintendo, 36 NES, 13 Game Gear. Its decompressed
    bound rises from 64 to 128 MiB; loading it takes about 7 s once per process
    (4 s before).
  • A renamed package. The converter's Python package is now retrorecomp
    (it was smsrecomp, the project's Master System name). Nothing changes for
    players or exported games; the C runtime keeps its internal names.

Because shared conversion inputs changed (the knowledge bound, a CPS-1 route
step, Mega Drive Z80 timing and the shared 68000 form), the next batch
converts every exported game in full once; later converter updates that only
touch the player shell upgrade games without rediscovery. Measured on Windows;
Linux remains qualified on Debian 13 / glibc 2.41; other baselines need
testing.

Assets 8
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