Mercurial > repos > blastem
diff vdp.h @ 1925:039553703c20
Don't apply address and cd register changes to the 'live' registers until pending flag is cleared, but do preserve the upper address bits in the latch. Fixes regression in Overdrive 2 while preserving fix to Mona in 344 bytes
author | Michael Pavone <pavone@retrodev.com> |
---|---|
date | Mon, 13 Apr 2020 20:43:25 -0700 |
parents | 2d462aa78349 |
children | c3c62dbf1ceb |
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--- a/vdp.h Mon Apr 13 18:14:25 2020 -0700 +++ b/vdp.h Mon Apr 13 20:43:25 2020 -0700 @@ -174,6 +174,7 @@ int32_t fifo_write; int32_t fifo_read; uint32_t address; + uint32_t address_latch; uint32_t serial_address; uint32_t colors[CRAM_SIZE*4]; uint32_t debugcolors[1 << (3 + 1 + 1 + 1)];//3 bits for source, 1 bit for priority, 1 bit for shadow, 1 bit for hilight @@ -181,6 +182,7 @@ uint32_t frame; uint32_t vsram_size; uint8_t cd; + uint8_t cd_latch; uint8_t flags; uint8_t regs[VDP_REGS]; //cycle count in MCLKs