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Mapper 452: Add support for 350-in-1.

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This commit is contained in:
NewRisingSun
2022-08-02 17:20:02 +02:00
parent d3a3cab2d9
commit 0ce8d972b2
1 changed files with 7 additions and 7 deletions
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14
src/boards/452.c
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@@ -25,7 +25,7 @@
static uint8 *WRAM;
static uint32 WRAMSIZE;
static uint8 latch[2];
static uint16 latch[2];
static void Mapper452_Sync(void) {
uint8 wramBank = latch[1] >>3 &6 |8;
@@ -37,10 +37,10 @@ static void Mapper452_Sync(void) {
setprg8r(0x10, (wramBank ^4) <<12, 0);
} else
if (latch[1] &8) {
setprg8(0x8000, latch[0] >>1 |0);
setprg8(0xA000, latch[0] >>1 |1);
setprg8(0xC000, latch[0] >>1 |2);
setprg8(0xE000, latch[0] >>1 |3 | latch[1] &4);
setprg8(0x8000, latch[0] >>1 &~1 |0);
setprg8(0xA000, latch[0] >>1 &~1 |1);
setprg8(0xC000, latch[0] >>1 &~1 |2);
setprg8(0xE000, latch[0] >>1 &~1 |3 | latch[1] &4 | (latch[1] &0x04 && latch[1] &0x40? 8: 0));
} else {
setprg16(0x8000, latch[0] >>2);
setprg16(0xC000, 0);
@@ -52,7 +52,7 @@ static void Mapper452_Sync(void) {
}
static DECLFW(Mapper452_WriteLatch) {
latch[0] =A &0xFF;
latch[0] =A &0xFFF;
latch[1] =V;
Mapper452_Sync();
/* Do not relay to CartBW, as RAM mapped to locations other than $8000-$DFFF are not write-enabled. */
@@ -94,5 +94,5 @@ void Mapper452_Init(CartInfo *info) {
SetupCartPRGMapping(0x10, WRAM, WRAMSIZE, 1);
AddExState(WRAM, WRAMSIZE, 0, "WRAM");
AddExState(&latch, 2, 0, "LATC");
AddExState(&latch, 4, 0, "LATC");
}