Add mapper 271

src/boards/datalatch.c

@@ -460,6 +460,18 @@ void Mapper241_Init(CartInfo *info) {
 	Latch_Init(info, M241Sync, 0, 0x8000, 0xFFFF, 1, 0);
 }
 
+/*------------------ Map 271 ---------------------------*/
+
+static void M271Sync(void) {
+	setchr8(latche & 0x0F);
+	setprg32(0x8000, latche >> 4);
+	setmirror((latche >> 5) & 1);
+}
+
+void Mapper271_Init(CartInfo *info) {
+	Latch_Init(info, M271Sync, 0, 0x8000, 0xFFFF, 0, 0);
+}
+
 /*------------------ Map 381 ---------------------------*/
 /* 2-in-1 High Standard Game (BC-019), reset-based */
 static uint8 reset = 0;

src/ines.c

@@ -691,6 +691,7 @@ INES_BOARD_BEGIN()
 	INES_BOARD( "8-in-1 JY-119",            267, Mapper267_Init         )
 	INES_BOARD( "COOLBOY/MINDKIDS",         268, Mapper268_Init         ) /* Submapper distinguishes between COOLBOY and MINDKIDS */
 	INES_BOARD( "Games Xplosion 121-in-1",  269, Mapper269_Init         )
+	INES_BOARD( "MGC-026",                  271, Mapper271_Init         )
 	INES_BOARD( "Akumajō Special: Boku Dracula-kun", 272, Mapper272_Init         )
 	INES_BOARD( "80013-B",                  274, BMC80013B_Init         )
 	INES_BOARD( "YY860417C",                281, Mapper281_Init         )

src/ines.h

@@ -260,6 +260,7 @@ void J2282_Init(CartInfo *);
 void Mapper267_Init(CartInfo *);
 void Mapper268_Init(CartInfo *);
 void Mapper269_Init(CartInfo *);
+void Mapper271_Init(CartInfo *);
 void Mapper288_Init(CartInfo *);
 void Mapper293_Init(CartInfo *);
 void Mapper297_Init(CartInfo *);

src/unif.c

@@ -620,6 +620,7 @@ static BMAPPING bmap[] = {
 
 	{ "BS-400R",                    422, Mapper422_Init,        0 },
 	{ "BS-4040R",                   422, Mapper422_Init,        0 },
+	{ "22026",                      271, Mapper271_Init,        0 },
 
 #ifdef COPYFAMI
 	{ "COPYFAMI_MMC3",          NO_INES, MapperCopyFamiMMC3_Init, 0 },