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M468: Cleanups and bugfixes

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This commit is contained in:
NewRisingSun
2023-01-03 01:01:38 +01:00
parent 07284ca4af
commit 03fd8fb1b8
4 changed files with 109 additions and 60 deletions
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19
src/boards/468_discrete.h
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@@ -34,17 +34,16 @@ static void UNROM_sync () {
}
static DECLFW(DISCRETE_writeLatch) {
if (mapper ==0x09 && mapperFlags ==0xE && A ==0xA000 && V ==0x00)
V =0x06; // UNROM: Strange hack, needed to get #282 "Portopia Serial Murder Case" on 852-in-1 running
latch =V;
sync();
}
static DECLFW(GNROM_writeLatch) {
if (~prgOR &0x2000 || mapper ==0x1C || mapper==0x1D)
V =V >>4 &0xF | V <<4 &0xF0; // Color Dreams: swap nibbles to mimic GNROM
latch =V;
sync();
static DECLFW(Portopia_writeLatch) {
DISCRETE_writeLatch(A, A ==0xA000 && V ==0x00? 0x06: V); /* Strange hack, needed to get #282 "Portopia Serial Murder Case" on 852-in-1 running */
}
static DECLFW(ColorDreams_writeLatch) {
DISCRETE_writeLatch(A, V >>4 &0xF | V <<4 &0xF0); /* Sswap nibbles to mimic GNROM */
}
@@ -59,15 +58,15 @@ void ANROM_BNROM_reset(uint8 clearRegs) {
void GNROM_reset(uint8 clearRegs) {
sync =GNROM_sync;
prgAND =mapperFlags &8? 0x07: 0x0F;
SetWriteHandler(0x8000, 0xFFFF, GNROM_writeLatch);
SetWriteHandler(0x8000, 0xFFFF, misc &0x10 && mapper &~0x10? DISCRETE_writeLatch: ColorDreams_writeLatch);
latch =0;
sync();
}
void UNROM_reset(uint8 clearRegs) {
sync =UNROM_sync;
prgAND =mapper ==0x0B || mapper ==0x17 &&~mapperFlags &8? 0x3F: mapperFlags &2? 0x0F: 0x1F;
SetWriteHandler(0x8000, 0xFFFF, DISCRETE_writeLatch);
prgAND =mapper ==0x0B || misc2 &0x10? 0x3F: mapperFlags &2? 0x0F: 0x1F;
SetWriteHandler(0x8000, 0xFFFF, mapper ==0x09 && mapperFlags ==0xE? Portopia_writeLatch: DISCRETE_writeLatch);
sync();
}