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#121625 11/29/22 02:59 PM
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MAME 0.250

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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4 members like this: R. Belmont, robcfg, Darkstar, Golden Child
Vas Crabb #121641 12/02/22 08:34 AM
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Bob Zed’s video of what’s new in MAME 0.250:
[video:youtube]
[/video]

Vas Crabb #121678 12/15/22 07:01 AM
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Megadon sound bug

The sound of EPOS "Megadon" is likely broken. It currently lacks the square LFO modulation (software envelope), and also the flashing death screen may run too slow. Inserting a coin repeats fragments of the last played sound instead of playing a "insert coin" sound effect. I suspect a timer emulation bug (that possibly also prevents removal of debris). I have no comparison, but this video shows how it had sounded in 2015.


https://www.arcade-museum.com/game_detail.php?game_id=8663

Megadon is one of the hardest and most challenging non-scroll maze shooters, because collision is completely pixel based (no bounding boxes) and everything except the orange walls is deadly. Killed opponents become deadly obstacles and most nasty is that explosion debris of own shots (hitting something too close) kill you too. Often you need to approach very close to walls to shoot through them, but if the shot bounces back or the enemy explodes too close or you rotate a pixel too far, it kills you too. Sometimes own shots (when hitting something) stay on screen and also the explosion becomes a deadly obstacles until you shoot something else (risking to shoot youself). I am not sure if this is by design or pixel garbage. I suspect this may be a MAME bug (missing timer that should blank them?) since it makes the game unfair by random deaths. Otherwise I like it and it should be fixed.

EPOS made very interesting unique games with Williams-like feeling and sound effects; they are still way underrated and barely mentioned in gaming history. Successors of Megadon were "Drakton" and "Revenger 84", those changed the game rules (no deadly ricochets) to be less frustrating.

Last edited by =CO=Windler; 12/15/22 07:04 AM.

MAY THE SOFTWARE BE WITH YOU!

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