Initial commit - http://sourceforge.net/p/fceumm/code/160/

src/boards/supervision.c

@@ -0,0 +1,87 @@
+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2002 Xodnizel
+ *
+ * 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
+ */
+
+#include "mapinc.h"
+
+static uint8 cmd0, cmd1;
+static SFORMAT StateRegs[] =
+{
+	{ &cmd0, 1, "L1" },
+	{ &cmd1, 1, "L2" },
+	{ 0 }
+};
+
+static void Sync(void) {
+	setchr8(0);
+	if (PRGptr[1])
+		setprg8r((cmd0 & 0xC) >> 2, 0x6000, ((cmd0 & 0x3) << 4) | 0xF);
+	else
+		setprg8(0x6000, (((cmd0 & 0xF) << 4) | 0xF) + 4);
+	if (cmd0 & 0x10) {
+		if (PRGptr[1]) {
+			setprg16r((cmd0 & 0xC) >> 2, 0x8000, ((cmd0 & 0x3) << 3) | (cmd1 & 7));
+			setprg16r((cmd0 & 0xC) >> 2, 0xc000, ((cmd0 & 0x3) << 3) | 7);
+		} else {
+			setprg16(0x8000, (((cmd0 & 0xF) << 3) | (cmd1 & 7)) + 2);
+			setprg16(0xc000, (((cmd0 & 0xF) << 3) | 7) + 2);
+		}
+	} else
+		if (PRGptr[4])
+			setprg32r(4, 0x8000, 0);
+		else
+			setprg32(0x8000, 0);
+	setmirror(((cmd0 & 0x20) >> 5) ^ 1);
+}
+
+static DECLFW(SuperWriteLo) {
+	if (!(cmd0 & 0x10)) {
+		cmd0 = V;
+		Sync();
+	}
+}
+
+static DECLFW(SuperWriteHi) {
+	cmd1 = V;
+	Sync();
+}
+
+static void SuperPower(void) {
+	SetWriteHandler(0x6000, 0x7FFF, SuperWriteLo);
+	SetWriteHandler(0x8000, 0xFFFF, SuperWriteHi);
+	SetReadHandler(0x6000, 0xFFFF, CartBR);
+	cmd0 = cmd1 = 0;
+	Sync();
+}
+
+static void SuperReset(void) {
+	cmd0 = cmd1 = 0;
+	Sync();
+}
+
+static void SuperRestore(int version) {
+	Sync();
+}
+
+void Supervision16_Init(CartInfo *info) {
+	info->Power = SuperPower;
+	info->Reset = SuperReset;
+	GameStateRestore = SuperRestore;
+	AddExState(&StateRegs, ~0, 0, 0);
+}