MAME 0.9

Release Date

MAME 0.9 was released on 9 March 1997.

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

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

Backgrounds in Zaxxon (set 1) were fixed, albeit running slowly on a 486/100.
Space Invaders was made to work correctly.
F12 to take a screenshot was fixed so that it works in the F4 tileset viewer.
Brad Oliver helped improve colors in Donkey Kong Junior (US).
Gary Walton contributed DIP switch definitions for Moon Quasar.
The frame rate counter and unthrottling behavior were changed to their current functionality: F11 toggles the frame rate counter, and F10 toggles unthrottling.
The memory mapping system was updated such that memory is separated into different regions dedicated to a given purpose (CPU, graphics, and so on) and is dynamically allocated when loading ROMs. The option to dispose a graphics region once the ROMs are loaded and converted was also added.
A new parameter, rom_decode, was added to ROM definitions, its purpose being to allow the driver author the option to specify a function that will decrypt or otherwise decode a given ROM upon loading. Additionally, all ROMs were made to decrypt into an entirely separate region for the sake of optimization.
The MachineDriver structure was modified in anticipation of supporting multiple CPUs.