Add mapper 446 using mapper emulation cores that can be included in other multi-ASIC mappers.

2025-09-01 01:13:46 +02:00
parent 3544ff567e
commit a2fdeee096
57 changed files with 3063 additions and 441 deletions
--- a/src/boards/asic_h3001.c
+++ b/src/boards/asic_h3001.c
@@ -0,0 +1,165 @@
+/* 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 "asic_h3001.h"
+
+static void (*H3001_cbSync)();
+static uint8 H3001_prg[2];
+static uint8 H3001_chr[8];
+static uint8 H3001_layout;
+static uint8 H3001_nt;
+static uint8 H3001_irq;
+static uint16 H3001_reload;
+static uint16 H3001_count;
+
+static SFORMAT H3001_state[] = {
+	{ H3001_prg,    2, "H31P" },
+	{ H3001_chr,    8, "H31C" },
+	{&H3001_layout, 4, "H31L" },
+	{&H3001_nt,     4, "H31M" },
+	{&H3001_irq,    4, "H31N" },
+	{&H3001_reload, 2, "H31R" },
+	{&H3001_count,  2, "H31T" },
+	{ 0 }
+};
+
+static int H3001_getPRGBank (uint8 bank) {
+	if (H3001_layout &0x80 && ~bank &1) bank ^= 2;
+	return bank &2? 0xFE | bank &1: H3001_prg[bank &1];
+}
+
+void H3001_syncPRG (int AND, int OR) {
+	setprg8(0x8000, H3001_getPRGBank(0) &AND |OR);
+	setprg8(0xA000, H3001_getPRGBank(1) &AND |OR);
+	setprg8(0xC000, H3001_getPRGBank(2) &AND |OR);
+	setprg8(0xE000, H3001_getPRGBank(3) &AND |OR);
+}
+
+void H3001_syncCHR (int AND, int OR) {
+	setchr1(0x0000, H3001_chr[0]);
+	setchr1(0x0400, H3001_chr[1]);
+	setchr1(0x0800, H3001_chr[2]);
+	setchr1(0x0C00, H3001_chr[3]);
+	setchr1(0x1000, H3001_chr[4]);
+	setchr1(0x1400, H3001_chr[5]);
+	setchr1(0x1800, H3001_chr[6]);
+	setchr1(0x1C00, H3001_chr[7]);
+}
+
+void H3001_syncMirror () {
+	setmirror(H3001_nt &0x40? (H3001_nt &0x80? MI_1: MI_0): H3001_nt &0x80? MI_H: MI_V);
+}
+
+DECLFW(H3001_write) {
+	switch(A >>12 &7) {
+		case 0: case 2:
+			H3001_prg[A >>13 &1] = V;
+			H3001_cbSync();
+			break;
+		case 1:
+			switch(A &7) {
+				case 0:
+					H3001_layout = V;
+					H3001_cbSync();
+					break;
+				case 1:
+					H3001_nt = V;
+					H3001_cbSync();
+					break;
+				case 3:
+					H3001_irq = V;
+					X6502_IRQEnd(FCEU_IQEXT);
+					break;
+				case 4:
+					H3001_count = H3001_reload;
+					X6502_IRQEnd(FCEU_IQEXT);
+					break;
+				case 5:
+					H3001_reload = H3001_reload &0x00FF | V <<8;
+					break;
+				case 6:
+					H3001_reload = H3001_reload &0xFF00 | V;
+					break;
+			}
+			break;
+		case 3:
+			H3001_chr[A &7] = V;
+			H3001_cbSync();
+			break;
+	}
+}
+
+void FP_FASTAPASS(1) H3001_cpuCycle (int a) {
+	while (a--) if (H3001_irq &0x80 && !--H3001_count) {
+		X6502_IRQBegin(FCEU_IQEXT);
+		H3001_irq = 0;
+	}
+}
+
+static void H3001_clear () {
+	int i;
+	for (i = 0; i < 2; i++) H3001_prg[i] = i;
+	for (i = 0; i < 8; i++) H3001_chr[i] = i;
+	H3001_layout = H3001_nt = H3001_irq = 0;
+	H3001_reload = H3001_count = 0;
+	H3001_cbSync();
+}
+
+static void H3001_setHandlers () {
+	SetReadHandler (0x8000, 0xFFFF, CartBR);
+	SetWriteHandler(0x8000, 0xBFFF, H3001_write);
+	MapIRQHook =H3001_cpuCycle;
+}
+
+static void H3001_configure (void (*sync)()) {
+	H3001_cbSync = sync;
+}
+
+void H3001_activate (uint8 clear, void (*sync)()) {
+	H3001_configure(sync);
+	H3001_setHandlers();
+	if (clear)
+		H3001_clear();
+	else
+		H3001_cbSync();
+
+}
+
+void H3001_addExState () {
+	AddExState(H3001_state, ~0, 0, 0);
+}
+
+void H3001_restore (int version) {
+	H3001_cbSync();
+}
+
+void H3001_power () {
+	H3001_setHandlers();
+	H3001_clear();
+}
+
+void H3001_init (CartInfo *info, void (*sync)()) {
+	H3001_addExState();
+	H3001_configure(sync);
+	info->Power = H3001_power;
+	info->Reset = H3001_cbSync;
+	GameStateRestore = H3001_cbSync;
+}