Change *.c and *.h end-of-line character to LF
change eol char to LF using dos2unix
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retro-wertz
@@ -1,152 +1,152 @@
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/* FCE Ultra - NES/Famicom Emulator
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*
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* Copyright notice for this file:
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* Copyright (C) 2015 CaH4e3, ClusteR
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* CoolBoy 400-in-1 FK23C-mimic mapper 16Mb/32Mb PROM + 128K/256K CHR RAM, optional SRAM, optional NTRAM
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* only MMC3 mode
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*
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* 6000 (xx76x210) | 0xC0
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* 6001 (xxx354x)
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* 6002 = 0
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* 6003 = 0
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*
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* hardware tested logic, don't try to understand lol
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*/
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#include "mapinc.h"
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#include "mmc3.h"
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static void COOLBOYCW(uint32 A, uint8 V) {
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uint32 mask = 0xFF ^ (EXPREGS[0] & 0x80);
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if (EXPREGS[3] & 0x10) {
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if (EXPREGS[3] & 0x40) { /* Weird mode */
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int cbase = (MMC3_cmd & 0x80) << 5;
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switch (cbase ^ A) { /* Don't even try to understand */
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case 0x0400:
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case 0x0C00: V &= 0x7F; break;
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}
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}
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/* Highest bit goes from MMC3 registers when EXPREGS[3]&0x80==0 or from EXPREGS[0]&0x08 otherwise */
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setchr1(A,
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(V & 0x80 & mask) | ((((EXPREGS[0] & 0x08) << 4) & ~mask)) /* 7th bit */
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| ((EXPREGS[2] & 0x0F) << 3) /* 6-3 bits */
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| ((A >> 10) & 7) /* 2-0 bits */
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);
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} else {
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if (EXPREGS[3] & 0x40) { /* Weird mode, again */
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int cbase = (MMC3_cmd & 0x80) << 5;
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switch (cbase ^ A) { /* Don't even try to understand */
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case 0x0000: V = DRegBuf[0]; break;
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case 0x0800: V = DRegBuf[1]; break;
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case 0x0400:
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case 0x0C00: V = 0; break;
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}
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}
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/* Simple MMC3 mode
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* Highest bit goes from MMC3 registers when EXPREGS[3]&0x80==0 or from EXPREGS[0]&0x08 otherwise
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*/
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setchr1(A, (V & mask) | (((EXPREGS[0] & 0x08) << 4) & ~mask));
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}
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}
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static void COOLBOYPW(uint32 A, uint8 V) {
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uint32 mask = ((0x3F | (EXPREGS[1] & 0x40) | ((EXPREGS[1] & 0x20) << 2)) ^ ((EXPREGS[0] & 0x40) >> 2)) ^ ((EXPREGS[1] & 0x80) >> 2);
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uint32 base = ((EXPREGS[0] & 0x07) >> 0) | ((EXPREGS[1] & 0x10) >> 1) | ((EXPREGS[1] & 0x0C) << 2) | ((EXPREGS[0] & 0x30) << 2);
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/* Very weird mode
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* Last banks are first in this mode, ignored when MMC3_cmd&0x40
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*/
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if ((EXPREGS[3] & 0x40) && (V >= 0xFE) && !((MMC3_cmd & 0x40) != 0)) {
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switch (A & 0xE000) {
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case 0xA000:
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if ((MMC3_cmd & 0x40)) V = 0;
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break;
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case 0xC000:
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if (!(MMC3_cmd & 0x40)) V = 0;
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break;
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case 0xE000:
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V = 0;
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break;
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}
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}
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/* Regular MMC3 mode, internal ROM size can be up to 2048kb! */
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if (!(EXPREGS[3] & 0x10))
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setprg8(A, (((base << 4) & ~mask)) | (V & mask));
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else { /* NROM mode */
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uint8 emask;
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mask &= 0xF0;
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if ((((EXPREGS[1] & 2) != 0))) /* 32kb mode */
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emask = (EXPREGS[3] & 0x0C) | ((A & 0x4000) >> 13);
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else /* 16kb mode */
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emask = EXPREGS[3] & 0x0E;
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setprg8(A, ((base << 4) & ~mask) /* 7-4 bits are from base (see below) */
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| (V & mask) /* ... or from MM3 internal regs, depends on mask */
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| emask /* 3-1 (or 3-2 when (EXPREGS[3]&0x0C is set) from EXPREGS[3] */
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| ((A & 0x2000) >> 13)); /* 0th just as is */
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}
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}
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static DECLFW(COOLBOYWrite) {
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if(A001B & 0x80)
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CartBW(A,V);
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/* Deny any further writes when 7th bit is 1 AND 4th is 0 */
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if ((EXPREGS[3] & 0x90) != 0x80) {
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EXPREGS[A & 3] = V;
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FixMMC3PRG(MMC3_cmd);
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FixMMC3CHR(MMC3_cmd);
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}
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}
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static void COOLBOYReset(void) {
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MMC3RegReset();
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EXPREGS[0] = EXPREGS[1] = EXPREGS[2] = EXPREGS[3] = 0;
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#if 0
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EXPREGS[0] = 0;
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EXPREGS[1] = 0x60;
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EXPREGS[2] = 0;
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EXPREGS[3] = 0;
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#endif
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FixMMC3PRG(MMC3_cmd);
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FixMMC3CHR(MMC3_cmd);
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}
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static void COOLBOYPower(void) {
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GenMMC3Power();
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EXPREGS[0] = EXPREGS[1] = EXPREGS[2] = EXPREGS[3] = 0;
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#if 0
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EXPREGS[0] = 0;
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EXPREGS[1] = 0x60;
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EXPREGS[2] = 0;
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EXPREGS[3] = 0;
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#endif
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FixMMC3PRG(MMC3_cmd);
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FixMMC3CHR(MMC3_cmd);
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SetWriteHandler(0x5000, 0x5fff, CartBW); /* some games access random unmapped areas and crashes because of KT-008 PCB hack in MMC3 source lol */
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SetWriteHandler(0x6000, 0x7fff, COOLBOYWrite);
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}
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void COOLBOY_Init(CartInfo *info) {
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GenMMC3_Init(info, 512, 256, 8, 0);
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pwrap = COOLBOYPW;
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cwrap = COOLBOYCW;
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info->Power = COOLBOYPower;
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info->Reset = COOLBOYReset;
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AddExState(EXPREGS, 4, 0, "EXPR");
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}
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/* FCE Ultra - NES/Famicom Emulator
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*
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* Copyright notice for this file:
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* Copyright (C) 2015 CaH4e3, ClusteR
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* CoolBoy 400-in-1 FK23C-mimic mapper 16Mb/32Mb PROM + 128K/256K CHR RAM, optional SRAM, optional NTRAM
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* only MMC3 mode
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*
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* 6000 (xx76x210) | 0xC0
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* 6001 (xxx354x)
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* 6002 = 0
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* 6003 = 0
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*
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* hardware tested logic, don't try to understand lol
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*/
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#include "mapinc.h"
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#include "mmc3.h"
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static void COOLBOYCW(uint32 A, uint8 V) {
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uint32 mask = 0xFF ^ (EXPREGS[0] & 0x80);
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if (EXPREGS[3] & 0x10) {
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if (EXPREGS[3] & 0x40) { /* Weird mode */
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int cbase = (MMC3_cmd & 0x80) << 5;
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switch (cbase ^ A) { /* Don't even try to understand */
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case 0x0400:
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case 0x0C00: V &= 0x7F; break;
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}
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}
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/* Highest bit goes from MMC3 registers when EXPREGS[3]&0x80==0 or from EXPREGS[0]&0x08 otherwise */
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setchr1(A,
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(V & 0x80 & mask) | ((((EXPREGS[0] & 0x08) << 4) & ~mask)) /* 7th bit */
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| ((EXPREGS[2] & 0x0F) << 3) /* 6-3 bits */
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| ((A >> 10) & 7) /* 2-0 bits */
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);
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} else {
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if (EXPREGS[3] & 0x40) { /* Weird mode, again */
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int cbase = (MMC3_cmd & 0x80) << 5;
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switch (cbase ^ A) { /* Don't even try to understand */
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case 0x0000: V = DRegBuf[0]; break;
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case 0x0800: V = DRegBuf[1]; break;
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case 0x0400:
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case 0x0C00: V = 0; break;
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}
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}
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/* Simple MMC3 mode
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* Highest bit goes from MMC3 registers when EXPREGS[3]&0x80==0 or from EXPREGS[0]&0x08 otherwise
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*/
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setchr1(A, (V & mask) | (((EXPREGS[0] & 0x08) << 4) & ~mask));
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}
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}
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static void COOLBOYPW(uint32 A, uint8 V) {
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uint32 mask = ((0x3F | (EXPREGS[1] & 0x40) | ((EXPREGS[1] & 0x20) << 2)) ^ ((EXPREGS[0] & 0x40) >> 2)) ^ ((EXPREGS[1] & 0x80) >> 2);
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uint32 base = ((EXPREGS[0] & 0x07) >> 0) | ((EXPREGS[1] & 0x10) >> 1) | ((EXPREGS[1] & 0x0C) << 2) | ((EXPREGS[0] & 0x30) << 2);
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/* Very weird mode
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* Last banks are first in this mode, ignored when MMC3_cmd&0x40
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*/
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if ((EXPREGS[3] & 0x40) && (V >= 0xFE) && !((MMC3_cmd & 0x40) != 0)) {
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switch (A & 0xE000) {
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case 0xA000:
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if ((MMC3_cmd & 0x40)) V = 0;
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break;
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case 0xC000:
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if (!(MMC3_cmd & 0x40)) V = 0;
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break;
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case 0xE000:
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V = 0;
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break;
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}
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}
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/* Regular MMC3 mode, internal ROM size can be up to 2048kb! */
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if (!(EXPREGS[3] & 0x10))
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setprg8(A, (((base << 4) & ~mask)) | (V & mask));
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else { /* NROM mode */
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uint8 emask;
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mask &= 0xF0;
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if ((((EXPREGS[1] & 2) != 0))) /* 32kb mode */
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emask = (EXPREGS[3] & 0x0C) | ((A & 0x4000) >> 13);
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else /* 16kb mode */
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emask = EXPREGS[3] & 0x0E;
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setprg8(A, ((base << 4) & ~mask) /* 7-4 bits are from base (see below) */
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| (V & mask) /* ... or from MM3 internal regs, depends on mask */
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| emask /* 3-1 (or 3-2 when (EXPREGS[3]&0x0C is set) from EXPREGS[3] */
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| ((A & 0x2000) >> 13)); /* 0th just as is */
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}
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}
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static DECLFW(COOLBOYWrite) {
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if(A001B & 0x80)
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CartBW(A,V);
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/* Deny any further writes when 7th bit is 1 AND 4th is 0 */
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if ((EXPREGS[3] & 0x90) != 0x80) {
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EXPREGS[A & 3] = V;
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FixMMC3PRG(MMC3_cmd);
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FixMMC3CHR(MMC3_cmd);
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}
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}
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static void COOLBOYReset(void) {
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MMC3RegReset();
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EXPREGS[0] = EXPREGS[1] = EXPREGS[2] = EXPREGS[3] = 0;
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#if 0
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EXPREGS[0] = 0;
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EXPREGS[1] = 0x60;
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EXPREGS[2] = 0;
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EXPREGS[3] = 0;
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#endif
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FixMMC3PRG(MMC3_cmd);
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FixMMC3CHR(MMC3_cmd);
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}
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static void COOLBOYPower(void) {
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GenMMC3Power();
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EXPREGS[0] = EXPREGS[1] = EXPREGS[2] = EXPREGS[3] = 0;
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#if 0
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EXPREGS[0] = 0;
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EXPREGS[1] = 0x60;
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EXPREGS[2] = 0;
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EXPREGS[3] = 0;
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#endif
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FixMMC3PRG(MMC3_cmd);
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FixMMC3CHR(MMC3_cmd);
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SetWriteHandler(0x5000, 0x5fff, CartBW); /* some games access random unmapped areas and crashes because of KT-008 PCB hack in MMC3 source lol */
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SetWriteHandler(0x6000, 0x7fff, COOLBOYWrite);
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}
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void COOLBOY_Init(CartInfo *info) {
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GenMMC3_Init(info, 512, 256, 8, 0);
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pwrap = COOLBOYPW;
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cwrap = COOLBOYCW;
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info->Power = COOLBOYPower;
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info->Reset = COOLBOYReset;
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AddExState(EXPREGS, 4, 0, "EXPR");
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}
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