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WHAT´S NEW?
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v1.31 <- v1.30
* Joystick axes can now be configured for controllers with more than two.
They can also be reversed.
* Implemented command "calibrate_js" to configure joystick buttons
interactively.
* Fixed a bug in the debugger prompt handler.
* Implemented FM2612 debugging support.
* Refactored SDL keyboard handling.
* Removed Linux-specific joystick code which no one uses (not even in
Linux, where the SDL version has always been preferred).
* Implemented the ability to bind arbitrary commands to joystick buttons.
This makes DGen fully controllable from a joystick/joypad.
* Implemented proper sprite masking. This fixes annoying priority glitches in
a number of games.
* Fixed half-submitted commands support in the VDP. This finally fixes the
mangled EA logo.
* Some code refactoring and documentation.
* Improved region settings. The single "region" variable can be used to
switch interactively from one region settings to another (identifier,
resolution, PAL/NTSC mode and frame rate).
* Improved region auto detection with the ability to specify a preference
order ("str_region_order" variable).
* Fixed other miscellaneous bugs (NASM on non-x86 targets, uninitialized
variables, other warnings and errors).