Add UNIF boards...

- Add UNL-TH2131-1, UNL-LH51, BMC-RESETNROM-XIN1, BMC-RESET-TXROM
- Add FARID_SLROM_8-IN-1, BMC-830425C-4391T, BMC-TJ-03, BMC-CTC-09
- Add BMC-K-3046, BMC-SA005-A, BMC-K-3006, BMC-K-3036, MINDKIDS
- Add UNL-KS7021A, KS106C, BTL-900218
- Cleanup VRC2and4 (unify power function)

src/boards/lh51.c

@@ -0,0 +1,87 @@
+/* FCEUmm - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2019 Libretro Team
+ *
+ * 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
+ */
+
+/* FDS Conversion
+ * NES 2.0 Mapper 309 is used for Whirlwind Manu's ROM cartridge conversion
+ * of game 愛戦士ニコル (Ai Senshi Nicol, cartridge code LH51).
+ * Its UNIF board name is UNL-LH51.
+ * https://wiki.nesdev.com/w/index.php/NES_2.0_Mapper_309
+ */
+
+#include "mapinc.h"
+
+static uint8 reg, mirr;
+static uint8 *WRAM = NULL;
+static uint32 WRAMSIZE;
+
+static SFORMAT StateRegs[] =
+{
+	{ &reg, 1, "REG" },
+	{ &mirr, 1, "MIRR" },
+	{ 0 }
+};
+
+static void Sync(void) {
+	setchr8(0);
+	setprg8r(0x10, 0x6000, 0);
+	setprg8(0x8000, reg & 0x0F);
+	setprg8(0xA000, 13);
+	setprg8(0xC000, 14);
+	setprg8(0xE000, 15);
+	setmirror(((mirr >> 3) & 1) ^ 1);
+}
+
+static DECLFW(LH51Write) {
+	switch (A & 0xF000) {
+	case 0x8000: reg = V; Sync(); break;
+	case 0xF000: mirr = V; Sync(); break;
+	}
+}
+
+static void LH51Power(void) {
+	Sync();
+	SetReadHandler(0x6000, 0xFFFF, CartBR);
+	SetWriteHandler(0x6000, 0x7FFF, CartBW);
+	SetWriteHandler(0x8000, 0xFFFF, LH51Write);
+	FCEU_CheatAddRAM(WRAMSIZE >> 10, 0x6000, WRAM);
+}
+
+static void LH51Close(void) {
+	if (WRAM)
+		FCEU_gfree(WRAM);
+	WRAM = NULL;
+}
+
+static void StateRestore(int version) {
+	Sync();
+}
+
+void LH51_Init(CartInfo *info) {
+	info->Power = LH51Power;
+	info->Close = LH51Close;
+	GameStateRestore = StateRestore;
+
+	WRAMSIZE = 8192;
+	WRAM = (uint8*)FCEU_gmalloc(WRAMSIZE);
+	SetupCartPRGMapping(0x10, WRAM, WRAMSIZE, 1);
+	AddExState(WRAM, WRAMSIZE, 0, "WRAM");
+
+	AddExState(&StateRegs, ~0, 0, 0);
+}