Welcome to The Official Site of the MAME Development Team

Hi everyone! Hopefully you all had a great New Year if you celebrate that kind of thing, and hopefully you’ve had some time to enjoy MAME 0.251 as well! All of us at MAMEdev agree 2022 was a massive year for MAME development, and we want to thank everyone who’s helped achieve that. MAME wouldn’t be what it is without all your contributions, whether it’s bug reports, pull requests, pre-release testing, helping out new users, or just letting us know that you appreciate our work.

We’ve got some really big stuff in the pipeline, but it’s going to take a bit longer than usual to make sure it’s ready for prime time. As such, there won’t be a January MAME release this year, but we’re fairly confident we can have MAME 0.252 out by the end of February. If you want a taste of some of the things that are coming, you can get the very latest source code from our repository on GitHub and compile it by following the instructions on our documentation site. Once again, thanks for your continued support, and have an awesome 2023!

It looks like MAME 0.251 has made it out the door just in time for the end of 2022! December felt like a long month in MAME development, because so much happened! Nebula, an elusive DECO Cassette game, is now emulated. With working steering controls, Magical Pumpkin: Puroland de Daibouken is now playable. Two members of the HP 9825 family from the 1970s have been added, and issues with keyboard input on localised versions of the HP 86B have been fixed.

One of the most interesting systems added this month is the so-called Gerät 32620, make by the Institut für Kosmosforschung of the Deutsche Demokratische Republik. This device was used to read coded messages to be broadcast via shortwave radio numbers stations for reception by undercover agents. If a human were to read the numbers, they could inadvertently disclose knowledge about the nature of the messages or the coding scheme in their speech patterns. This device gives a small glimpse into the shadowy world of espionage.

Konami fans have a lot to be excited about. Firstly, two more hand-held LCD games have been added: Skate or Die, and Bill Elliott’s NASCAR Racing. Secondly, Windy Fairy has been making steady progress on the PowerPC-based arcade systems, with gun controls now working in Teraburst. Finally, various refinements and fixes to the CPU core for Konami’s custom 6809 processor have fixed a subtle parallax scrolling effect in the classic Padodius DA!

Several systems have been fleshed out noticeably this month, including the NEC PC-8801mkII SR family of Japanese computers, the 3com Palm IIIc and Palm m100 PDAs, and the Yamaha DX100 synthesizer. Additionally, the NEC PC-88VA2 can now boot most software, and the work on the Palm systems has allowed the VTech IQ Unlimited to show signs of life.

Quite a few systems have had pluggable controller support added this month, and support for some additional controllers has been added, including:

• Pluggable controller support for consoles and computers from Sega, NEC and Sharp.
• Sega Mega Drive mouse and 4-player adaptor support.
• Support for an ATmega-based paddle controller that works with export versions of the Sega Master System.
• NEC PC Engine mouse support.
• Support for the Dempa Micom Soft XE-1AP, the first analog gamepad. Can be used with compatible software for the Sega Mega Drive, NEC PC Engine, Sharp X68000 and FM Towns families.

Of course, there are lots of other fixes and emulation improvements. The Apple IIgs has better ADB and real-time clock emulation. Sega’s Turbo and Buck Rogers: Planet of Zoom have better controls, and the latter has had graphical priority issues fixed. The NES APU frame counter interrupt is now emulated, fixing issues with dozens of games. For developers, debugger command and expression history is now saved between sessions.

As always, you can read about all the changes this month in the whatsnew.txt file, or download the source code and 64-bit Windows binary packages from the download page.

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November has passed us by, and it’s time for MAME 0.250, with a distinct Konami flavour! On the arcade side, the third and fourth player positions are supported in NBA Play By Play, and lots of regional variants have been added for games running on Hornet hardware. We’ve also added support for a Konami hand-held LCD game, a Tiger LCD game based on a popular Konami franchise, and a prototype of an unreleased Game.com title in the same series. In addition to the Castlevania-themed LCD game, we’ve added licensed Tiger LCD games featuring Mega Man, Ninja Gaiden, Superman and Gargoyles characters, although the latter two are different skins for the same game.

MSX computer emulation has had a major overhaul, with more supported systems and peripherals, including lots of cartridge port floppy drives. As a bonus, the Fujitsu FM Towns family gained support for more controllers, including the Marty Pad and the twin-stick Libble Rabble joypad. Hard disk issues affecting the FM Towns family were also tracked down and fixed. Atari 8-bit computer cartridge emulation has been modernised, and a few more unlicensed Game Boy cartridges are supported (you can now play some very famous unauthorised translations in MAME). The Quantel DPB-7000 is looking much better, with lots of progress on video output and peripheral support.

Namco’s Alpine Surfer is now playable in MAME, and several graphical glitches that had plagued System 22 emulation have been banished. Support for Italian versions of Quizard has been added, and German versions of Quizard 3 and Quizard 4 Rainbow are now working, as well as a Czech version of Quizard 4 Rainbow. A missing line scroll effect in Seta’s Caliber 50 is now emulated, and some flickering graphics in Atari’s Return of the Jedi have been fixed.

Other improvements include lots of fixes for invalid memory accesses, function keys for the Franklin Ace (Apple II clone) computers, proper DIP switch labels for Nintendo Vs. Mahjong, and much, much more. You can read about all the changes this month in the whatsnew.txt file, and you can download the source code and 64-bit Windows binary packages from the download page.

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After a whirlwind four weeks of development, MAME 0.249 is ready for release! Highlights this month include improved Atari 8-bit family emulation, a newer version of Kyukyoku Tiger with a two-player cooperative mode, another version of The Crystal Maze promoted to working, and lots of prototype cartridge dumps for consoles including the Atari Lynx, Nintendo Game Boy and Super Nintendo Entertainment System. There are also eight e-kara cartridges, including a rare e-kara Web cartridge containing twelve youth-oriented songs.

The modernisation of Apple II and Macintosh emulation is progressing steadily. This month, the last of the legacy floppy devices were phased out; various ADB emulation issues were resolved, making mouse/keyboard input more reliable; and the Apple IIe standard 80-column card now works properly. Brian Johnson has added some hard disk and sound cards for the Epson QX-10 and improved the keyboard support. Thanks to holub, MAME now emulates the ZX Evolution: BASECONF, another successor to the Sinclair ZX Spectrum. As an added bonus, there’s also better I/O emulation for the ATM-Turbo family.

All the little fixes and newly supported features this month add up to make this a must-have release. There’s better display emulation for the Victor 9000, data cassette support for the Casio RZ-1, proper emulation for the K051316 tile flip configuration flags (allowing an old hack to be removed), better video emulation in Jaleco’s Field Combat, fixes for sample playback on the Yamaha MU-5, and the German UI translation has been brought up to date.

Of course, there’s far more than we have time to mention here, but you can read all about it in the whatsnew.txt file. As always, you can download the source and 64-bit Windows binary packages from the download page.

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It must be that time of month again – time for MAME 0.248! The Hartung Game Master was one of several hand-held game consoles positioned as low-cost alternatives to the Nintendo Game Boy. It was notable for its somewhat unconventional choice of an NEC µPD78C11 CPU, its low screen resolution, and the poor quality of its software library. And now, for the first time, you can relive the disappointment of all eighteen games released for the system in emulation!

Speaking of hand-held consoles, MAME now supports more Game Boy cartridges, including the Pocket Camera, the EEPROM and two-axis accelerometer used by Kirby Tilt ’n’ Tumble and Command Master, and several memory controllers used for unlicensed games and compilations.

Still on the topic of Nintendo, MAME now emulates the earliest version of the RP2A03 audio processing unit, used on arcade boards as well as early production runs of the Famicom console. Several games play sounds incorrectly with the later RP2A03G used in the NES and the majority of Famicom consoles. Several issues with Famicom peripherals have been fixed, too.

MAME’s Win32 debugger can now save your window arrangement, and there’s an option to use light text on a dark background. On recent versions of macOS, MAME’s Cocoa debugger now follows the system colour scheme.

You can read about all the exciting development this month in the whatsnew.txt file, or download the source and 64-bit Windows binary packages from the download page.

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With a change of season just around the corner, it’s time to unveil MAME 0.247! This is a huge release, and should have something for everyone!

Newly added systems, and systems promoted to working, include:

• The M&D Monon Color – a low-cost Chinese hand-held console. This required finding an exploit to extract the CPU’s internal ROM as audio. Said CPU is a high-performance derivative of Intel’s MCS-51 architecture.
• A prototype version of Tecmo’s Super Pinball Action that used separate screens for the simulated backglass and playfield. This version was presumably poorly received due to the need for an expensive dedicated cabinet.
• An initial driver for second-generation Sony NEWS workstations based on MIPS processors. This one has been a long time coming, with a lot of preparatory work, but it’s finally here!
• The Dracula and Game Pachinko – two Tsukuda hand-held games with vacuum fluorescent displays.
• Micom Mahjong – an example of an early CPU-based TV game, and possibly the first dedicated electronic mahjong system.
• Three new Casio synthesisers.
• Several Impera Magic Card games. This one’s also been a while coming, requiring several new devices to be emulated.
• A few Astro Corp. gambling games, including Dino Dino, Magic Bomb, Stone Age, and Zoo.
• Some previously missing NO CD versions of Capcom’s Red Earth.

You’ll also find numerous bug fixes and emulation improvements across the board. There’s better support for low-cost Macintosh models based on the V8 chipset (including the LC, LC II, and Classic II). There are quite a few fixes for issues with Nintendo’s NES/Famicom-derived arcade systems, the VS. System and PlayChoice-10. Several ZX Spectrum derivatives from the Eastern Bloc are in better shape. The Atari POKEY sounds better. The PC Engine pachinko controller from Coconuts Japan is now supported. There’s also an important fix for extracting CHD CD-ROM images.

The stream of prototype cartridges is still flowing, with a number of Atari 2600, Game Boy Color, NES, and Super NES additions landing this month. You’ll also find the Scholastic Microzine disks for Apple II, and several PC magazine cover disks. The new VGMPlay music rips include music from the recently-emulated Poly-Net Warriors arcade game.

As always, you can read about everything that’s happened this month in the whatsnew.txt file, or download the source and 64-bit Windows binary packages from the download page.

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Just in time for the end of July, MAME 0.246 makes its grand entrance. The biggest upheaval this month was the reorganisation of the source code to match the project structure. If you’re paying attention, you’ll see the change on the system information screens. Apart from that, it should be transparent to users, while simplifying life for developers.

Several audio issues have been fixed this month, including a big overhaul for Fairlight CMI IIx synthesiser channel card emulation, and DAC sound for JPM Lucky Casino fruit machines. The latest enhancements for the crt-geom and crt-geom-deluxe shaders have been belatedly integrated, and the Chinese and Brazilian Portuguese user interface translations are once again up-to-date and complete. Software list updates this month include more prototype console cartridges, half a dozen newly dumped e-kara cartridges, and quite a few metadata cleanups and corrections, as well as the usual batches of Apple II floppies, Commodore 64 tapes and vgmplay music rips.

You can read all the details about development activity this month in the whatsnew.txt file, or download the source and 64-bit Windows binary packages from the download page. Until next time, happy MAMEing!

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