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Wed, 20 May 2015 10:35:03 -0700
Michael Pavone
Update vscroll latch implementation to be more in line with what Eke-Eke has observed. Revert the change to vdp_cycles_to_line because it breaks hints on line 0. H-Int timing is still a little messed up, but the previous change made things worse.
Tue, 19 May 2015 23:23:53 -0700
Michael Pavone
Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation.
Sun, 17 May 2015 20:03:27 -0700
Michael Pavone
Make sure z80_save_reg does nothing when there is no register in the reg field of the instruction. This fixes a bug that corrupted SP in the MDEM 2011 demo
Sun, 17 May 2015 19:14:41 -0700
Michael Pavone
Call z80_handle_deferred after generating an insruction handler so that instructions like rst work correctly
Sun, 17 May 2015 15:43:20 -0700
Michael Pavone
Fix VDP status register PAL bit based on observations of the Titan Overdrive demo
Sun, 17 May 2015 15:41:15 -0700
Michael Pavone
Don't overwrite an instruction offset mapping with an extension word value. I really need the ability for a word to be mapped to more than one instruction, but this will be more correct for now
Sun, 17 May 2015 15:40:31 -0700
Michael Pavone
Fix crash bug in Z80 interpreter
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