Add mappers 111, 356, 269, 353

- backport mapper 111 (Cheapocabra or GTROM) from fceux
2020-02-14 11:39:54 +08:00
parent 0b4b5421dc
commit b7050cb55d
6 changed files with 599 additions and 1 deletions
--- a/src/boards/356.c
+++ b/src/boards/356.c
@@ -0,0 +1,103 @@
+/* FCEUmm - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2020 negativeExponent
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+/* NES 2.0 Mapper 356 -  J.Y. Company's 7-in-1 Rockman (JY-208)
+ * All registers work as INES Mapper 045, except $6000 sequential register 2 (third write):
+ */
+
+#include "mapinc.h"
+#include "mmc3.h"
+
+static uint8* CHRRAM = NULL;
+static uint32 CHRRAMSIZE = 0;
+
+static void M356CW(uint32 A, uint8 V) {
+	if (EXPREGS[2] & 0x20) {
+		uint32 NV = V;
+		if (EXPREGS[2] & 8)
+			NV &= (1 << ((EXPREGS[2] & 7) + 1)) - 1;
+		else
+		if (EXPREGS[2])
+			NV &= 0;	/* hack ;( don't know exactly how it should be */
+		NV |= EXPREGS[0] | ((EXPREGS[2] & 0xF0) << 4);
+		setchr1(A, NV);
+	} else
+		setchr8r(0x10, 0);
+}
+
+static void M356PW(uint32 A, uint8 V) {
+	uint32 MV = V & ((EXPREGS[3] & 0x3F) ^ 0x3F);
+	MV |= EXPREGS[1];
+	if (UNIFchrrama)
+		MV |= ((EXPREGS[2] & 0x40) << 2);
+	setprg8(A, MV);
+}
+
+static void M356MW(uint8 V) {
+	if (EXPREGS[2] & 0x40)
+		SetupCartMirroring(4, 1, CHRRAM);
+	else
+		setmirror((V & 1) ^ 1);
+}
+
+static DECLFW(M356Write) {
+	if (!(EXPREGS[3] & 0x40)) {
+		EXPREGS[EXPREGS[4]] = V;
+		EXPREGS[4] = (EXPREGS[4] + 1) & 3;
+		FixMMC3PRG(MMC3_cmd);
+		FixMMC3CHR(MMC3_cmd);
+	}
+}
+
+static void M356Close(void) {
+	if (CHRRAM)
+		FCEU_free(CHRRAM);
+	CHRRAM = NULL;
+}
+
+static void M356Reset(void) {
+	EXPREGS[0] = EXPREGS[1] = EXPREGS[3] = EXPREGS[4] = 0;
+	EXPREGS[2] = 0x0F;
+	MMC3RegReset();
+}
+
+static void M356Power(void) {
+	EXPREGS[4] = 0;
+	EXPREGS[0] = EXPREGS[1] = EXPREGS[3] = EXPREGS[4] = 0;
+	EXPREGS[2] = 0x0F;
+	GenMMC3Power();
+	SetWriteHandler(0x6000, 0x7FFF, M356Write);
+}
+
+void Mapper356_Init(CartInfo* info) {
+	GenMMC3_Init(info, 128, 128, 0, 0);
+	cwrap = M356CW;
+	pwrap = M356PW;
+	mwrap = M356MW;
+	info->Reset = M356Reset;
+	info->Power = M356Power;
+	info->Close = M356Close;
+	AddExState(EXPREGS, 5, 0, "EXPR");
+
+	CHRRAMSIZE = 8192;
+	CHRRAM = (uint8*)FCEU_gmalloc(CHRRAMSIZE);
+	SetupCartCHRMapping(0x10, CHRRAM, CHRRAMSIZE, 1);
+	AddExState(CHRRAM, CHRRAMSIZE, 0, "CHRR");
+}