MAME 0.22

Release Date

MAME 0.22 was released on 25 May 1997.

Contributors

The known contributors for this version are, in first-name alphabetical order:

• Bernd Wiebelt
• Brad Oliver
• Ivan Mackintosh
• Nicola Salmoria
• Paul Berberich
• Rick Wirch
• Roberto Ventura
• Virtu-Al

Specific Contributions

The known contributions for this version are, in the order specified in the whatsnew:

• Rick Wirch submitted an optimization to cpu_readmem and cpu_writemem, resulting in a decent speed boost.

• Brad Oliver fixed a number of bugs affecting non-Intel ports and also suggested several ways to improve portability in general.

• Paul Berberich improved the colors in Congo Bongo, though they are still not correct.

• Thanks to information from Ivan Mackintosh, the colors in Centipede (revision 3) were fixed.

• Nicola Salmoria added support for the cars in Rally-X (Midway)'s radar display.

• Nicola Salmoria fixed the colors in Bomb Jack (set 2) et al. They should now be 100% correct.

• Bugs related to inserting credits in Elevator Action and Turtles were fixed.

• Preliminary sound support was added to Elevator Action and Jungle King (Japan), though the Tarzan yell sample is missing for the latter.

• Thanks to Virtu-Al, Time Pilot now has 100% correct colors.

• Some sprite priority issues in Frogger (Sega set 2) and clones were fixed.

• High-score saving support was added to Amidar, Frogger (Sega set 2) and their clones.

• A number of bugs with various Space Invaders clones were fixed.

• The cpuintrf struct was modified to support the aforementioned cpu_readmem and cpu_writemem optimizations.

• Several (unspecified) drivers had miscellaneous minor fixes.

• Bernd Wiebelt provided support for VESA 2.0 linear and banked extensions, as well as faster pixel-doubling functionality via inline assembly.

Game Support

Working Games Added

• Commando (US) (no music)
• Commando (World) (no music)
• Diamond Run (no music)
• Ghosts'n Goblins (World? set 1) (no music)
• Pac-Man Plus
• Phoenix (Amstar)
• Vulgus (Japan?) (wrong colors)