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m293: Fix alignment and update

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This commit is contained in:
negativeExponent
2020-11-17 00:18:31 +08:00
parent 14b689cde6
commit 0cc55ba1f1
1 changed files with 21 additions and 16 deletions
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37
src/boards/293.c
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@@ -34,44 +34,49 @@ static void Sync(void) {
uint8 bank = ((regs[1] << 5) & 0x20) | ((regs[1] >> 1) & 0x18);
uint8 block = (regs[0] & 7);
switch (mode) {
case 0: /* UNROM */
setprg16(0x8000, bank | block);
setprg16(0xC000, bank | 7);
case 0: /* UNROM */
setprg16(0x8000, bank | block);
setprg16(0xC000, bank | 7);
break;
case 1:
setprg16(0x8000, bank | block & 0xFE);
setprg16(0xC000, bank | 7);
break;
case 2: /* NROM-128 */
case 2: /* NROM-128 */
setprg16(0x8000, bank | block);
setprg16(0xC000, bank | block);
setprg16(0xC000, bank | block);
break;
case 3: /* NROM-256 */
case 3: /* NROM-256 */
setprg32(0x8000, (bank | block) >> 1);
break;
}
setchr8(0);
setmirror(((regs[1] >> 7) & 1) ^ 1);
break;
}
setchr8(0);
setmirror(((regs[1] >> 7) & 1) ^ 1);
}
static DECLFW(M293Write1) {
if (A < 0xA000) regs[0] = V;
regs[0] = V;
regs[1] = V;
Sync();
Sync();
}
static DECLFW(M293Write2) {
if (A < 0xA000) regs[1] = V;
regs[1] = V;
Sync();
}
static DECLFW(M293Write3) {
regs[0] = V;
Sync();
Sync();
}
static void M293Power(void) {
regs[0] = regs[1] = 0;
Sync();
SetReadHandler(0x8000, 0xFFFF, CartBR);
SetWriteHandler(0x8000, 0xBFFF, M293Write1);
SetWriteHandler(0xC000, 0xDFFF, M293Write2);
SetWriteHandler(0x8000, 0x9FFF, M293Write1);
SetWriteHandler(0xA000, 0xBFFF, M293Write2);
SetWriteHandler(0xC000, 0xDFFF, M293Write3);
}
static void StateRestore(int version) {