Mapper 530: Update to use modular VRC2/VRC4 emulation.

2025-04-10 09:49:19 +02:00
parent b800c05db5
commit c57a56f43a
2 changed files with 55 additions and 116 deletions
--- a/src/boards/530.c
+++ b/src/boards/530.c
@@ -0,0 +1,55 @@
+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2025 NewRisingSun
+ *
+ * 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"
+#include "vrc2and4.h"
+
+static void sync () {
+	VRC24_syncPRG(0x01F, 0x000);
+	VRC24_syncCHR(0x1FF, 0x000);
+	VRC24_syncMirror();
+}
+
+int UNLAX5705_getPRGBank(int bank) {
+	int result =VRC24_getPRGBank(bank);
+	return result <<2 &0x8 | result >>2 &0x2 | result &~0xA;
+}
+
+int UNLAX5705_getCHRBank(int bank) {
+	int result =VRC24_getCHRBank(bank);
+	return result <<1 &0x40 | result >>1 &0x20 | result &~0x60;
+}
+
+DECLFW(UNLAX5705_unscrambleAddress) {
+	VRC24_writeReg(A &~0x1000 | A <<9 &0x1000, V);
+}
+
+
+void UNLAX5705_power (void) {
+	VRC24_power();
+	SetWriteHandler(0x8000, 0xFFFF, UNLAX5705_unscrambleAddress);
+}
+
+void UNLAX5705_Init (CartInfo *info) {
+	VRC24_init(info, sync, 0x01, 0x02, 1, 1, 0);
+	info->Power =UNLAX5705_power;
+	VRC24_GetPRGBank =UNLAX5705_getPRGBank;
+	VRC24_GetCHRBank =UNLAX5705_getCHRBank;
+}