diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 4c841ed8..4cbfc435 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -447,7 +447,9 @@ set(SRC_CORE
${CMAKE_CURRENT_SOURCE_DIR}/boards/34.cpp
${CMAKE_CURRENT_SOURCE_DIR}/boards/354.cpp
${CMAKE_CURRENT_SOURCE_DIR}/boards/413.cpp
- ${CMAKE_CURRENT_SOURCE_DIR}/boards/36.cpp
+ ${CMAKE_CURRENT_SOURCE_DIR}/boards/471.cpp
+ ${CMAKE_CURRENT_SOURCE_DIR}/boards/451.cpp
+ ${CMAKE_CURRENT_SOURCE_DIR}/boards/36.cpp
${CMAKE_CURRENT_SOURCE_DIR}/boards/3d-block.cpp
${CMAKE_CURRENT_SOURCE_DIR}/boards/40.cpp
${CMAKE_CURRENT_SOURCE_DIR}/boards/411120-c.cpp
diff --git a/src/boards/451.cpp b/src/boards/451.cpp
new file mode 100644
index 00000000..5b844c2d
--- /dev/null
+++ b/src/boards/451.cpp
@@ -0,0 +1,216 @@
+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ * Copyright (C) 2024 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 451 is used for the homebrew game Haratyler HP/MP. It is
+ * basically a homebrew TLROM-like circuit board that implements the MMC3
+ * register's in an unusual fashion, and saves the high score to flash ROM */
+
+#include "mapinc.h"
+#include "mmc3.h"
+#include "../ines.h"
+
+const int ROM_CHIP = 0x00;
+const int CFI_CHIP = 0x10;
+const int FLASH_CHIP = 0x11;
+
+const int FLASH_SECTOR_SIZE = 64 * 1024;
+const int magic_addr1 = 0x0555;
+const int magic_addr2 = 0x02AA;
+
+static uint8 flash_state, flash_id_mode;
+static uint8 *flash_data;
+static uint16 flash_buffer_a[10];
+static uint8 flash_buffer_v[10];
+static uint8 flash_id[2];
+
+static DECLFW(M451FlashWrite)
+{
+ if (flash_state < sizeof(flash_buffer_a) / sizeof(flash_buffer_a[0])) {
+ flash_buffer_a[flash_state] = (A & 0xFFF);
+ flash_buffer_v[flash_state] = V;
+ flash_state++;
+
+ // enter flash ID mode
+ if ((flash_state == 2) &&
+ (flash_buffer_a[0] == magic_addr1) && (flash_buffer_v[0] == 0xAA) &&
+ (flash_buffer_a[1] == magic_addr2) && (flash_buffer_v[1] == 0x55) &&
+ (flash_buffer_a[1] == magic_addr1) && (flash_buffer_v[1] == 0x90)) {
+ flash_id_mode = 0;
+ flash_state = 0;
+ }
+
+ // erase sector
+ if ((flash_state == 6) &&
+ (flash_buffer_a[0] == magic_addr1) && (flash_buffer_v[0] == 0xAA) &&
+ (flash_buffer_a[1] == magic_addr2) && (flash_buffer_v[1] == 0x55) &&
+ (flash_buffer_a[2] == magic_addr1) && (flash_buffer_v[2] == 0x80) &&
+ (flash_buffer_a[3] == magic_addr1) && (flash_buffer_v[3] == 0xAA) &&
+ (flash_buffer_a[4] == magic_addr2) && (flash_buffer_v[4] == 0x55) &&
+ (flash_buffer_v[5] == 0x30)) {
+ int offset = &Page[A >> 11][A] - flash_data;
+ int sector = offset / FLASH_SECTOR_SIZE;
+ for (int i = sector * FLASH_SECTOR_SIZE; i < (sector + 1) * FLASH_SECTOR_SIZE; i++)
+ flash_data[i % PRGsize[ROM_CHIP]] = 0xFF;
+ FCEU_printf("Flash sector #%d is erased (0x%08x - 0x%08x).\n", sector, offset, offset + FLASH_SECTOR_SIZE);
+ }
+
+ // erase chip
+ if ((flash_state == 6) &&
+ (flash_buffer_a[0] == magic_addr1) && (flash_buffer_v[0] == 0xAA) &&
+ (flash_buffer_a[1] == magic_addr2) && (flash_buffer_v[1] == 0x55) &&
+ (flash_buffer_a[2] == magic_addr1) && (flash_buffer_v[2] == 0x80) &&
+ (flash_buffer_a[3] == magic_addr1) && (flash_buffer_v[3] == 0xAA) &&
+ (flash_buffer_a[4] == magic_addr2) && (flash_buffer_v[4] == 0x55) &&
+ (flash_buffer_a[4] == magic_addr1) && (flash_buffer_v[4] == 0x10)) {
+ memset(flash_data, 0xFF, PRGsize[ROM_CHIP]);
+ FCEU_printf("Flash chip erased.\n");
+ flash_state = 0;
+ }
+
+ // write byte
+ if ((flash_state == 4) &&
+ (flash_buffer_a[0] == magic_addr1) && (flash_buffer_v[0] == 0xAA) &&
+ (flash_buffer_a[1] == magic_addr2) && (flash_buffer_v[1] == 0x55) &&
+ (flash_buffer_a[2] == magic_addr1) && (flash_buffer_v[2] == 0xA0)) {
+ int offset = &Page[A >> 11][A] - flash_data;
+ if (CartBR(A) != 0xFF) {
+ FCEU_PrintError("Error: can't write to 0x%08x, flash sector is not erased.\n", offset);
+ }
+ else {
+ CartBW(A, V);
+ }
+ flash_state = 0;
+ }
+ }
+
+ // not a command
+ if (((A & 0x00FF) != (magic_addr1 & 0x00FF)) && ((A & 0x00FF) != (magic_addr2 & 0x00FF))) {
+ flash_state = 0;
+ }
+
+ // reset
+ if (V == 0xF0) {
+ flash_state = 0;
+ flash_id_mode = 0;
+ }
+
+ FixMMC3PRG(MMC3_cmd);
+}
+
+static void M451FixPRG(uint32 A, uint8 V) {
+ setprg8r(FLASH_CHIP, 0x8000, 0);
+ setprg8r(FLASH_CHIP, 0xA000, 0x10 | ((EXPREGS[0] << 2) & 0x08) | (EXPREGS[0] & 0x01));
+ setprg8r(FLASH_CHIP, 0xC000, 0x20 | ((EXPREGS[0] << 2) & 0x08) | (EXPREGS[0] & 0x01));
+ setprg8r(FLASH_CHIP, 0xE000, 0x30);
+}
+
+static void M451FixCHR(uint32 A, uint8 V) {
+ setchr8(EXPREGS[0] & 0x01);
+}
+
+static DECLFR(M451Read) {
+ if (flash_state == 0x90) {
+ return flash_id[A & 1];
+ }
+ return CartBR(A);
+}
+
+static DECLFW(M451Write) {
+ M451FlashWrite(A, V);
+ switch (A & 0xE000) {
+ case 0xA000:
+ MMC3_CMDWrite(0xA000, A & 0x01);
+ break;
+ case 0xC000:
+ A &= 0xFF;
+ MMC3_IRQWrite(0xC000, A - 1);
+ MMC3_IRQWrite(0xC001, 0);
+ MMC3_IRQWrite(0xE000 + ((A == 0xFF) ? 0x00 : 0x01), 0x00);
+ break;
+ case 0xE000:
+ EXPREGS[0] = A & 0x03;
+ FixMMC3PRG(MMC3_cmd);
+ FixMMC3CHR(MMC3_cmd);
+ break;
+ }
+}
+
+static void M451Power(void) {
+ GenMMC3Power();
+ SetReadHandler(0x8000, 0xFFFF, M451Read);
+ SetWriteHandler(0x8000, 0xFFFF, M451Write);
+}
+
+static void StateRestore(int version) {
+ FixMMC3PRG(MMC3_cmd);
+ FixMMC3CHR(MMC3_cmd);
+}
+
+static void M451Close(void) {
+ if(flash_data)
+ FCEU_gfree(flash_data);
+ flash_data = NULL;
+}
+
+static void M451FlashReset(void)
+{
+ if (flash_data)
+ {
+ size_t flash_size = PRGsize[ROM_CHIP];
+ // Copy ROM to flash data
+ for (size_t i = 0; i < flash_size; i++) {
+ flash_data[i] = PRGptr[ROM_CHIP][i];
+ }
+ }
+}
+
+void Mapper451_Init(CartInfo *info) {
+ GenMMC3_Init(info, 512, 16, 0, 0);
+ pwrap = M451FixPRG;
+ cwrap = M451FixCHR;
+
+ info->Power = M451Power;
+ info->Close = M451Close;
+ GameStateRestore = StateRestore;
+
+ flash_state = 0;
+ flash_id_mode = 0;
+ info->battery = 1;
+
+ // Allocate memory for flash
+ size_t flash_size = PRGsize[ROM_CHIP];
+ flash_data = (uint8*)FCEU_gmalloc(flash_size);
+ // Copy ROM to flash data
+ for (size_t i = 0; i < flash_size; i++) {
+ flash_data[i] = PRGptr[ROM_CHIP][i];
+ }
+ SetupCartPRGMapping(FLASH_CHIP, flash_data, flash_size, 1);
+ info->addSaveGameBuf( flash_data, flash_size, M451FlashReset );
+
+ flash_id[0] = 0x37;
+ flash_id[1] = 0x86;
+ SetupCartPRGMapping(CFI_CHIP, flash_id, sizeof(flash_id), 0);
+
+ AddExState(flash_data, flash_size, 0, "FLSH");
+ AddExState(&flash_state, sizeof(flash_state), 0, "FLST");
+ AddExState(&flash_id_mode, sizeof(flash_id_mode), 0, "FLMD");
+ AddExState(flash_buffer_a, sizeof(flash_buffer_a), 0, "FLBA");
+ AddExState(flash_buffer_v, sizeof(flash_buffer_v), 0, "FLBV");
+}
diff --git a/src/boards/471.cpp b/src/boards/471.cpp
new file mode 100644
index 00000000..705aca6d
--- /dev/null
+++ b/src/boards/471.cpp
@@ -0,0 +1,65 @@
+/* FCEUmm - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ * Copyright (C) 2024 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 471 denotes the Impact Soft IM1 circuit board, used for
+ * Haratyler (without HG or MP) and Haraforce. It is basically INES Mapper 201
+ * with the addition of a scanline IRQ.*/
+
+#include "mapinc.h"
+
+static uint32 latch;
+
+static void Sync() {
+ setprg32(0x8000, latch);
+ setchr8(latch);
+}
+
+static DECLFW(Write) {
+ X6502_IRQEnd(FCEU_IQEXT);
+ latch = A;
+ Sync();
+}
+
+static void Reset() {
+ latch = 0;
+ Sync();
+}
+
+static void Power() {
+ SetReadHandler(0x8000, 0xFFFF, CartBR);
+ SetWriteHandler(0x8000, 0xFFFF, Write);
+ Reset();
+}
+
+static void StateRestore(int version) {
+ Sync();
+}
+
+static void HBHook() {
+ X6502_IRQBegin(FCEU_IQEXT);
+}
+
+void Mapper471_Init(CartInfo *info) {
+ info->Power = Power;
+ info->Reset = Reset;
+ GameHBIRQHook = HBHook;
+ GameStateRestore = StateRestore;
+ AddExState(&latch, sizeof(latch), 0, "LATC");
+}
diff --git a/src/drivers/libretro/fceux_libretro.so b/src/drivers/libretro/fceux_libretro.so
new file mode 100755
index 00000000..bec849ae
Binary files /dev/null and b/src/drivers/libretro/fceux_libretro.so differ
diff --git a/src/ines.cpp b/src/ines.cpp
index 3dd08318..0bec913b 100644
--- a/src/ines.cpp
+++ b/src/ines.cpp
@@ -810,6 +810,8 @@ BMAPPINGLocal bmap[] = {
{"Impact Soft MMC3 Flash Board", 406, Mapper406_Init },
{"Super Russian Roulette", 413, Mapper413_Init },
{"INX_007T_V01", 470, INX_007T_Init },
+ {"Haratyler HP/MP", 451, Mapper451_Init },
+ {"Impact Soft IM1", 471, Mapper471_Init },
{"KONAMI QTAi Board", 547, QTAi_Init },
diff --git a/src/ines.h b/src/ines.h
index 407a5b97..c64f44aa 100644
--- a/src/ines.h
+++ b/src/ines.h
@@ -281,6 +281,8 @@ void Mapper255_Init(CartInfo *);
void Mapper354_Init(CartInfo *);
void Mapper406_Init(CartInfo *);
void Mapper413_Init(CartInfo *);
+void Mapper451_Init(CartInfo *);
+void Mapper471_Init(CartInfo *);
void INX_007T_Init(CartInfo* info);
void GN45_Init(CartInfo *info); /* previously mapper 205 */
diff --git a/vc/vc14_fceux.vcxproj b/vc/vc14_fceux.vcxproj
index c8191b90..46bc26e0 100644
--- a/vc/vc14_fceux.vcxproj
+++ b/vc/vc14_fceux.vcxproj
@@ -438,6 +438,8 @@ xcopy /y /d "$(ProjectDir)\..\src\drivers\win\7z_64.dll" "$(OutDir)"
+
+
diff --git a/vc/vc14_fceux.vcxproj.filters b/vc/vc14_fceux.vcxproj.filters
index 1b57adff..b19bb5ba 100644
--- a/vc/vc14_fceux.vcxproj.filters
+++ b/vc/vc14_fceux.vcxproj.filters
@@ -1123,6 +1123,12 @@
boards
+
+ boards
+
+
+ boards
+
@@ -1976,4 +1982,4 @@
-
\ No newline at end of file
+