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Mappers 500-502: Fixed one-screen mirroring; reset to menu

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This commit is contained in:
NewRisingSun
2025-04-01 01:16:54 +02:00
committed by LibretroAdmin
parent ebad4b9f13
commit a4a623b6c3
3 changed files with 23 additions and 6 deletions
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6
src/boards/500.c
View File

@@ -51,8 +51,14 @@ static void M500Power() {
SetWriteHandler(0x6000, 0x6FFF, M500WriteReg); SetWriteHandler(0x6000, 0x6FFF, M500WriteReg);
} }
static void M500Reset() {
reg[0] = reg[1] = 0;
Sync();
}
void Mapper500_Init(CartInfo *info) { void Mapper500_Init(CartInfo *info) {
Latch_Init(info, Sync, NULL, 0, 0); Latch_Init(info, Sync, NULL, 0, 0);
info->Power = M500Power; info->Power = M500Power;
info->Reset = M500Reset;
AddExState(StateRegs, ~0, 0, NULL); AddExState(StateRegs, ~0, 0, NULL);
} }

8
src/boards/501.c
View File

@@ -33,7 +33,7 @@ static void Sync(void) {
setprg4(0x7000, 0); setprg4(0x7000, 0);
setprg32(0x8000, (reg[0] << 2) + (latch.data & 7)); setprg32(0x8000, (reg[0] << 2) + (latch.data & 7));
setchr8(0); setchr8(0);
setmirror(MI_0 + (reg[1] & 1)); setmirror(latch.data &0x10? MI_1: MI_0);
} }
static DECLFW(M501WriteReg) { static DECLFW(M501WriteReg) {
@@ -50,8 +50,14 @@ static void M501Power() {
SetWriteHandler(0x6000, 0x6FFF, M501WriteReg); SetWriteHandler(0x6000, 0x6FFF, M501WriteReg);
} }
static void M501Reset() {
reg[0] = reg[1] = 0;
Sync();
}
void Mapper501_Init(CartInfo *info) { void Mapper501_Init(CartInfo *info) {
Latch_Init(info, Sync, NULL, 0, 0); Latch_Init(info, Sync, NULL, 0, 0);
info->Power = M501Power; info->Power = M501Power;
info->Reset = M501Reset;
AddExState(StateRegs, ~0, 0, NULL); AddExState(StateRegs, ~0, 0, NULL);
} }

15
src/boards/502.c
View File

@@ -39,11 +39,10 @@ static void Sync(void) {
setprg16(0xC000, (reg[0] << 3) + mask); setprg16(0xC000, (reg[0] << 3) + mask);
} }
setchr8(0); setchr8(0);
if (reg[1] & 2) { if (reg[1] &2)
setmirror(MI_0 + (latch.data >> 4) & 1); setmirror(latch.data &0x10? MI_1: MI_0);
} else { else
setmirror(reg[1] & 1); setmirror(reg[1] &0x01? MI_V: MI_H);
}
} }
static DECLFW(M502WriteReg) { static DECLFW(M502WriteReg) {
@@ -60,8 +59,14 @@ static void M502Power() {
SetWriteHandler(0x6000, 0x6FFF, M502WriteReg); SetWriteHandler(0x6000, 0x6FFF, M502WriteReg);
} }
static void M502Reset() {
reg[0] = reg[1] = 0;
Sync();
}
void Mapper502_Init(CartInfo *info) { void Mapper502_Init(CartInfo *info) {
Latch_Init(info, Sync, NULL, 0, 0); Latch_Init(info, Sync, NULL, 0, 0);
info->Power = M502Power; info->Power = M502Power;
info->Reset = M502Reset;
AddExState(StateRegs, ~0, 0, NULL); AddExState(StateRegs, ~0, 0, NULL);
} }