MESS v0.148u4 is released. MESS is an open source project which documents the hardware for a wide variety of (mostly vintage) computers, video game consoles, and calculators through software emulation, as MAME does for arcade games. As a nice side effect to this documentation, MESS allows software and games for these hardware platforms to be run on modern PCs.

MESS v0.148u4 Changelog:

0.148u4 ------- MAMETesters Bugs Fixed ---------------------- New System Drivers Supported: ----------------------------- -DAG Z80 Trainer [Robbbert] Systems Promoted from GAME_NOT_WORKING: --------------------------------------- (none) Skeleton drivers: ----------------- -Ravensburger Selbstbaucomputer [Robbbert] Software Lists: ---------------- -softlist: added PCB documentation to gba, gbcolor and n64 lists, based on nointro pictures [LoganB] Source Changes -------------- -XT IDE interface [Phill Harvey-Smith] -Fix for ROM paging on both the Dragon 64 and Dragon Alpha, which restores the Dragon Alpha to working condition [Phill Harvey-Smith] -Z800x and M20 improvements to boot CP/M-8000 [Christian Groessler] Z800x: Push the correct word on internal traps. Z800x: Fix FCW handling in system non-segmented mode. Z800x: Add missing form of ldb reg, #imm. Z800x: Show previous PC, NSPSEG, and PSAPSEG in the debugger. Z800x: Improved flags display in the debugger. Z800x: Add debugger command z8k_disass_mode to toggle segmented/non-segmented. Default "auto" tracks the current execution state. Z800x: Don't block nested exceptions if the priority and the FCW allows it. -s3, mach8: Added read/write registers, and implemented read masking in BitBLTs (used by XF86_S3). Made clipping rectangle checks against Destination X/Y when doing BitBLT. [Barry Rodewald] -merged DAGZ80 into SELZ80 driver. Added a new bios version of SELZ80. [Robbbert] -cd2650: added correct character generator rom [Robbbert] -nes.c: major refactoring and improvements of NES/FC cart emulation: [Fabio Priuli] * converted carts, mappers and pcbs to use slot devices * fixed starting of Famicom, Famicom Twin and Dr. PCJr * fixed handling of "no disk" in FDS so that the system displays Mario and Luigi jumping around as expected * added AY8910 sound to Sunsoft-5B (Gimmick JPN sfx) * added YM2413 to VRC-7 (Lagrange Point OST) * added support for recorded samples to Jaleco sport titles and to Bandai Family Trainer Aerobics Studio, thanks to notes by hap and egoh, and recordings by Pongbashi (samples are needed because these games use a currently undumpable speech chip) * added support for NES-EVENT pcb used by Nintendo World Championship 1990, including dipswitches * added support for Galoob Game Genie real usage (in addition to the codes which Puggsy added to his cheat collections): when you load ggenie, a second cartslot becomes available to load another game attached to the cheat device (e.g. with "mess.exe nes -cart ggenie -cart2 smb") and you can enter the cheat codes as in a real NES * added support for Nantettatte!! Baseball lock-on mechanism, based on the tests performed by naruko on his carts: when you load nantbb, a second cartslot becomes available to load one of the two update minicarts (91 Hen or OB Hen) * improved emulation of Namcot 163, 175 and 340 boards, based on the tests performed by naruko, lidnariq and bootgod on the real hardware * moved Nantettatte!! Baseball minicarts to a separate list (nes_ntbrom.xml) because they cannot be loaded in the NES directly, but only through the nantbb subslot * emulated bus conflict (CPU/PRG) in PCBs documented as having it * partial emulation of open bus, enough to make working the games using it as a sort of protection * fixed crash when loading files using FFE mappers * fixed mirroring in some boards (Sunsoft DCS and UNL-CC-21) and in some games (e.g. Paris Dakar Rally Special and Escape from Atlantis) * fixed a few bugs in Tengen 800032 emulation (mapper 64), promoting Klax, Xybots and Road Runner to working state * fixed Tengen 800037 emulation (mapper 158), promoting US Alien Syndrome to working state * fixed NINA-001 emulation (mapper 34), promoting Impossible Mission II to working state * improved Taito LROG017 emulation (mapper 77), promoting Napoleon Senki to working state * added emulation of the Sachen SA-9602B pcb used by Mei Shao Nv Meng Gong Chang, a chinese port of Princess Maker by Sachen, based on the great work done by Cah4e3 in FCEUMM * added working emulation of many bootleg pcbs used for pirate conversions from FDS (Ai Senshi Nicol, Doki Doki Panic, Fuuun Shaolin Kyo, Green Beret, Monty no Doki Doki Daidassou, Tobidase Daisakusen, Super Mario Bros Malee 2 / Genius Merio Bros...) * improved emulation of many pirate pcb (BMC-GOLDENCARD-6IN1, KS7013B, KS7012, BMC-GHOSTBUSTERS63IN1, UNL-MALISB, MAXI15 and more...) * improved RacerMate Challenge II emulation, but the game is still not working due to unemulated bicycle controller * added CPU-based IRQ mode in Tengen 800032 emulation (mapper 64), fixing Skulls & Crossbones gfx (but the game is still not working) * improved IRQ handling fixing a lot of 1-line glitches, fixing gfx corruption in the upper half of Pinbot tables and allowing Sangokushi II - Haou no Tairiku to boot. * fixed many small inaccuracies in the old code, spot during the conversion * added support for most other known pcbs, even if in most cases emulation is only sketchy * reduced the need of fake alt pbcs for boards which only differed by mirroring handling (these are now recognized through the "mirroring" feature) * removed fake wram which was added to a lot of partially documented pcbs and re-added it only where actually present, so to more accurately document what was really in the carts -atari.c: Correct bit for POK_KEY_BREAK which now allows colon/semi-colon [:;] to work properly on Atari Computers. [Tom Clayton] -psxcd: Further cdrom work, main functional change is better sector buffer handling [Carl] -svmu.c: changed input mappings to be more standard [LoganB] -pc8201: Added Japanese ROM. [noris] -bbc.c: Fixed cassette loading. [Wilbert Pol] -csw_cas.c: Fixed CSW header detection regression. [Wilbert Pol]

Download: MESS v0.148u4 x86
Download: MESS v0.148u4 x64
Source: Here