MAME 0.21

Release Date

MAME 0.21 was released on 12 May 1997.

Contributors

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

• Dark Schneider
• Nicola Salmoria
• Ville Laitinen
• Virtu-Al

Specific Contributions

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

• Virtu-Al submitted full color support for Amidar and Turtles.

• The colors in Arabian (Atari) were corrected.

• A bug where star backgrounds would slow down when frameskipping was fixed.

• The music tempo in 1942 (set 1) was fixed.

• The color strips in Space Invaders were adjusted slightly.

• Mad Planets no longer crashes with its updated sample set.

• Proper colors were added to Warp Warp (Rock-ola set 1).

• The DIP switches in Elevator Action were corrected.

• Dark Schneider submitted a core for the Motorola 6809 CPU.

• Nicola Salmoria added busy-wait detection to the Zilog Z80 CPU core.

• Volume adjustment was added via the "MasterVolume" configuration parameter.

• When bringing up the F4-based tile viewer, DIP switch, or pause screens, audio output is now suspended.

• The user can now redefine the keys that MAME uses.

• The structure used by game samples was modified slightly.

Game Support

Working Games Added

• Donkey Kong (Japan set 1)
• Galaga (Midway set 1 with fast shoot hack)
• Invader's Revenge
• Jungle Hunt (US)
• Kangaroo (Atari)
• Super Pac-Man (Midway)

MAME Firsts

• First version of MAME to support the Motorola 6809 CPU core.
• First version of MAME to support redefinable controls.
• First version of MAME to support a game with an unknown year.