diff --git a/src/boards/coolboy.c b/src/boards/coolboy.c new file mode 100644 index 0000000..6a1a2a2 --- /dev/null +++ b/src/boards/coolboy.c @@ -0,0 +1,92 @@ +/* FCE Ultra - NES/Famicom Emulator + * + * Copyright notice for this file: + * Copyright (C) 2015 CaH4e3 + * + * 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 + * + * CoolBoy 400-in-1 FK23C-mimic mapper 32Mb PROM + 128K CHR RAM, no wram, no CROM + * only MMC3 mode + * + */ + +#include "mapinc.h" +#include "mmc3.h" + +static void COOLBOYCW(uint32 A, uint8 V) { + if(EXPREGS[3] & 0x10) + setchr8(EXPREGS[2] & 0xF); + else + setchr1(A, V); +} + +static void COOLBOYPW(uint32 A, uint8 V) { + uint32 mask, shift; + uint32 base = ((EXPREGS[0] & 0x07) >> 0) | ((EXPREGS[1] & 0x10) >> 1) | ((EXPREGS[1] & 0x0C) << 2) | ((EXPREGS[0] & 0x30) << 2); + switch(EXPREGS[0]&0xC0) { + case 0x00: + mask = 0x3F; + shift = 6; + break; + case 0xC0: + shift = 4; + if(EXPREGS[3] & 0x10) { + mask = 0x03; + } else { + mask = 0x0F; + } + break; + } + if(EXPREGS[3] & 0x10) + setprg8(A, (base << shift) | (V & mask) | (EXPREGS[3] & 0x0C) /*| EXPREGS[2] & 2*/); + else + setprg8(A, (base << shift) | (V & mask)); +} + +static DECLFW(COOLBOYWrite) { + if((EXPREGS[3] & 0x80) == 0) { + EXPREGS[A & 3] = V; + FixMMC3PRG(MMC3_cmd); + FixMMC3CHR(MMC3_cmd); + uint32 base = ((EXPREGS[0] & 0x07) >> 0) | ((EXPREGS[1] & 0x10) >> 1) | ((EXPREGS[1] & 0x0C) << 2) | ((EXPREGS[0] & 0x30) << 2); + FCEU_printf("exp %02x %02x (base %03d)\n",A,V,base); + } +} + +static void COOLBOYReset(void) { + MMC3RegReset(); + EXPREGS[0] = EXPREGS[1] = EXPREGS[2] = EXPREGS[3] = 0; + FixMMC3PRG(MMC3_cmd); + FixMMC3CHR(MMC3_cmd); +} + +static void COOLBOYPower(void) { + GenMMC3Power(); + EXPREGS[0] = EXPREGS[1] = EXPREGS[2] = EXPREGS[3] = 0; + FixMMC3PRG(MMC3_cmd); + FixMMC3CHR(MMC3_cmd); + SetWriteHandler(0x5000, 0x5fff, CartBW); // some games access random unmapped areas and crashes because of KT-008 PCB hack in MMC3 source lol + SetWriteHandler(0x6000, 0x6fff, COOLBOYWrite); +} + +void COOLBOY_Init(CartInfo *info) { + GenMMC3_Init(info, 512, 128, 0, 0); + pwrap = COOLBOYPW; + cwrap = COOLBOYCW; + info->Power = COOLBOYPower; + info->Reset = COOLBOYReset; + AddExState(EXPREGS, 4, 0, "EXPR"); +} + diff --git a/src/boards/mmc3.c b/src/boards/mmc3.c index 1446cfa..2f4bfb2 100644 --- a/src/boards/mmc3.c +++ b/src/boards/mmc3.c @@ -28,6 +28,7 @@ #include "mmc3.h" uint8 MMC3_cmd; +uint8 kt_extra; uint8 *WRAM; uint32 WRAMSIZE; uint8 *CHRRAM; @@ -186,7 +187,7 @@ DECLFW(MMC3_IRQWrite) { DECLFW(KT008HackWrite) { // FCEU_printf("%04x:%04x\n",A,V); switch (A & 3) { - case 0: EXPREGS[0] = V; FixMMC3PRG(MMC3_cmd); break; + case 0: kt_extra = V; FixMMC3PRG(MMC3_cmd); break; case 1: break; // unk case 2: break; // unk case 3: break; // unk @@ -233,7 +234,7 @@ static void GENCWRAP(uint32 A, uint8 V) { static void GENPWRAP(uint32 A, uint8 V) { // [NJ102] Mo Dao Jie (C) has 1024Mb MMC3 BOARD, maybe something other will be broken // also HengGe BBC-2x boards enables this mode as default board mode at boot up - setprg8(A, (V & 0x7F) | ((EXPREGS[0] & 4) << 4)); + setprg8(A, (V & 0x7F) | ((kt_extra & 4) << 4)); // KT-008 boards hack 2-in-1, TODO assign to new ines mapper, most dump of KT-boards on the net are mapper 4, so need database or goodnes fix support } @@ -318,7 +319,7 @@ void GenMMC3_Init(CartInfo *info, int prg, int chr, int wram, int battery) { } // KT-008 boards hack 2-in-1, TODO assign to new ines mapper, most dump of KT-boards on the net are mapper 4, so need database or goodnes fix support - AddExState(EXPREGS, 1, 0, "EXPR"); + AddExState(&kt_extra, 1, 0, "KTEX"); AddExState(MMC3_StateRegs, ~0, 0, 0); info->Power = GenMMC3Power; diff --git a/src/drivers/libretro/fceu/unif.c b/src/drivers/libretro/fceu/unif.c index 8d0fea7..3b40c28 100644 --- a/src/drivers/libretro/fceu/unif.c +++ b/src/drivers/libretro/fceu/unif.c @@ -312,7 +312,8 @@ static int LoadCHR(FCEUFILE *fp) { #define BMCFLAG_FORCE4 1 #define BMCFLAG_16KCHRR 2 #define BMCFLAG_32KCHRR 4 -#define BMCFLAG_EXPCHRR 8 +#define BMCFLAG_128KCHRR 8 +#define BMCFLAG_EXPCHRR 10 static BMAPPING bmap[] = { { "11160", BMC11160_Init, 0 }, @@ -448,6 +449,7 @@ static BMAPPING bmap[] = { { "UOROM", UNROM_Init, 0 }, { "VRC7", UNLVRC7_Init, 0 }, { "YOKO", UNLYOKO_Init, 0 }, + { "COOLBOY", COOLBOY_Init, BMCFLAG_128KCHRR }, #ifdef COPYFAMI { "COPYFAMI_MMC3", MapperCopyFamiMMC3_Init, 0 }, @@ -508,13 +510,16 @@ static int InitializeBoard(void) { if (!strcmp((char*)sboardname, (char*)bmap[x].name)) { if (!malloced[16]) { if (bmap[x].flags & BMCFLAG_16KCHRR) - CHRRAMSize = 16384; + CHRRAMSize = 16; else if (bmap[x].flags & BMCFLAG_32KCHRR) - CHRRAMSize = 32768; + CHRRAMSize = 32; + else if (bmap[x].flags & BMCFLAG_128KCHRR) + CHRRAMSize = 128; else if (bmap[x].flags & BMCFLAG_EXPCHRR) - CHRRAMSize = 256 * 1024; + CHRRAMSize = 256; else - CHRRAMSize = 8192; + CHRRAMSize = 8; + CHRRAMSize <<= 10; if ((UNIFchrrama = (uint8*)FCEU_malloc(CHRRAMSize))) { SetupCartCHRMapping(0, UNIFchrrama, CHRRAMSize, 1); AddExState(UNIFchrrama, CHRRAMSize, 0, "CHRR"); diff --git a/src/unif.h b/src/unif.h index b64f06d..8cce071 100644 --- a/src/unif.h +++ b/src/unif.h @@ -145,6 +145,7 @@ void UNLTF1201_Init(CartInfo *info); void UNLVRC7_Init(CartInfo *info); void UNLYOKO_Init(CartInfo *info); void UNROM_Init(CartInfo *info); +void COOLBOY_Init(CartInfo *info); #ifdef COPYFAMI void MapperCopyFamiMMC3_Init(CartInfo *info);