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Mapper 327: add submapper 1, used for Mario IV (Armadillo)'s 1-screen mirroring.

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NewRisingSun
2025-09-09 00:30:58 +02:00
parent 51b74cebdc
commit a57d1d5955
1 changed files with 13 additions and 0 deletions
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13
src/boards/et-100.c
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@@ -41,6 +41,7 @@
#include "mapinc.h"
#include "mmc3.h"
static uint8 submapper;
static uint8 *CHRRAM = NULL;
static uint32 CHRRAMSize;
@@ -58,6 +59,16 @@ static void BMC1024CA1CW(uint32 A, uint8 V) {
setchr1(A, V | ((EXPREGS[0] & 7) << 7));
else
setchr1(A, (V&0x7F) | ((EXPREGS[0] & 7) << 7));
if (submapper == 1 && EXPREGS[0] &0x08) setmirror(DRegBuf[MMC3_cmd &0x80? 2: 0] &0x80? MI_1: MI_0);
}
static void BMC1024CA1MW(uint8 V) {
A000B = V;
if (EXPREGS[0] &0x08)
setmirror(DRegBuf[MMC3_cmd &0x80? 2: 0] &0x80? MI_1: MI_0);
else
setmirror(V &1? MI_H: MI_V);
}
static DECLFW(BMC1024CA1Write) {
@@ -90,6 +101,7 @@ static void BMC1024CA1Close(void) {
}
void BMC1024CA1_Init(CartInfo *info) {
submapper = info->submapper;
GenMMC3_Init(info, 256, 256, 8, 0);
CHRRAMSize = 8192;
CHRRAM = (uint8*)FCEU_gmalloc(CHRRAMSize);
@@ -97,6 +109,7 @@ void BMC1024CA1_Init(CartInfo *info) {
AddExState(CHRRAM, CHRRAMSize, 0, "CHRR");
pwrap = BMC1024CA1PW;
cwrap = BMC1024CA1CW;
if (submapper == 1) mwrap = BMC1024CA1MW;
info->Power = BMC1024CA1Power;
info->Reset = BMC1024CA1Reset;
info->Close = BMC1024CA1Close;