Genesis-Plus-GX/source/unused/CHANGELOG

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[05/25/03]
- Fixed a typo that made Z80 banked access to the VDP registers always fail.
[05/17/03]
- Modified the rendering code to handle unaligned longword access to memory.
[04/20/03]
- Modified 68000 emulator to prevent 'tas.b $mem' from writing data back
after a read (fixes Gargoyles).
- Fixed bug in 68000 emulator to swap order of words written for address
register indirect pre-decremented writes (fixes Jim Power graphics).
- Added support for 240-line displays (for Super Skidmarks).
- Rewrote part of the interrupt handling (fixes some raster effects).
- Removed sprite collision detection code (never really worked).
- Optimized sprite rendering inner loop.
[04/13/03]
- Finished up memory map for VDP DMA V-bus reads.
- Fixed handling of 68000 writes to I/O chip at even addresses.
- Fixed bit 7 handling of control register in I/O chip.
- Finished up Z80 memory map.
- Added code to handle Genesis hardware lock-ups.
- Removed some faulty code from the 68000 memory map handlers.
[03/22/03]
- Completed implementation of Z80 banked memory handlers.