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

1 files changed, 2 insertions, 0 deletions

diff --git a/vdp.h b/vdp.h
index cd407d3..44dc46c 100644
--- a/vdp.h
+++ b/vdp.h
@@ -174,6 +174,7 @@ typedef struct {
 	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 @@ typedef struct {
 	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