Initial commit - http://sourceforge.net/p/fceumm/code/160/
This commit is contained in:
twinaphex
203
src/boards/fk23c.c
Normal file
203
src/boards/fk23c.c
Normal file
@@ -0,0 +1,203 @@
|
||||
/* FCE Ultra - NES/Famicom Emulator
|
||||
*
|
||||
* Copyright notice for this file:
|
||||
* Copyright (C) 2006 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
|
||||
*/
|
||||
|
||||
#include "mapinc.h"
|
||||
#include "mmc3.h"
|
||||
|
||||
static uint8 unromchr;
|
||||
static uint32 dipswitch = 0;
|
||||
static uint8 *CHRRAM = NULL;
|
||||
static uint32 CHRRAMSize;
|
||||
|
||||
static void BMCFK23CCW(uint32 A, uint8 V) {
|
||||
if (EXPREGS[0] & 0x40)
|
||||
setchr8(EXPREGS[2] | unromchr);
|
||||
else if (EXPREGS[0] & 0x20) {
|
||||
setchr1r(0x10, A, V);
|
||||
} else {
|
||||
uint16 base = (EXPREGS[2] & 0x7F) << 3;
|
||||
if (EXPREGS[3] & 2) {
|
||||
int cbase = (MMC3_cmd & 0x80) << 5;
|
||||
setchr1(A, V | base);
|
||||
setchr1(0x0000 ^ cbase, DRegBuf[0] | base);
|
||||
setchr1(0x0400 ^ cbase, EXPREGS[6] | base);
|
||||
setchr1(0x0800 ^ cbase, DRegBuf[1] | base);
|
||||
setchr1(0x0c00 ^ cbase, EXPREGS[7] | base);
|
||||
} else
|
||||
setchr1(A, V | base);
|
||||
}
|
||||
}
|
||||
|
||||
static void BMCFK23CPW(uint32 A, uint8 V) {
|
||||
uint32 bank = (EXPREGS[1] & 0x1F);
|
||||
uint32 hiblock = ((EXPREGS[0] & 8) << 4) | ((EXPREGS[0] & 0x80) << 1) | (UNIFchrrama ? ((EXPREGS[2] & 0x40) << 3) : 0);
|
||||
uint32 block = (EXPREGS[1] & 0x60) | hiblock;
|
||||
uint32 extra = (EXPREGS[3] & 2);
|
||||
switch (EXPREGS[0] & 7) {
|
||||
case 0:
|
||||
setprg8(A, (block << 1) | (V & 0x3F));
|
||||
if (extra) {
|
||||
setprg8(0xC000, EXPREGS[4]);
|
||||
setprg8(0xE000, EXPREGS[5]);
|
||||
}
|
||||
break;
|
||||
case 1:
|
||||
setprg8(A, ((hiblock | (EXPREGS[1] & 0x70)) << 1) | (V & 0x1F));
|
||||
if (extra) {
|
||||
setprg8(0xC000, EXPREGS[4]);
|
||||
setprg8(0xE000, EXPREGS[5]);
|
||||
}
|
||||
break;
|
||||
case 2:
|
||||
setprg8(A, ((hiblock | (EXPREGS[1] & 0x78)) << 1) | (V & 0x0F));
|
||||
if (extra) {
|
||||
setprg8(0xC000, EXPREGS[4]);
|
||||
setprg8(0xE000, EXPREGS[5]);
|
||||
}
|
||||
break;
|
||||
case 3:
|
||||
setprg16(0x8000, (bank | block));
|
||||
setprg16(0xC000, (bank | block));
|
||||
break;
|
||||
case 4:
|
||||
setprg32(0x8000, (bank | block) >> 1);
|
||||
break;
|
||||
}
|
||||
setprg8r(0x10, 0x6000, A001B & 3);
|
||||
}
|
||||
|
||||
static DECLFW(BMCFK23CHiWrite) {
|
||||
if (EXPREGS[0] & 0x40) {
|
||||
if (EXPREGS[0] & 0x30)
|
||||
unromchr = 0;
|
||||
else {
|
||||
unromchr = V & 3;
|
||||
FixMMC3CHR(MMC3_cmd);
|
||||
}
|
||||
} else {
|
||||
if ((A == 0x8001) && (EXPREGS[3] & 2) && (MMC3_cmd & 8)) {
|
||||
EXPREGS[4 | (MMC3_cmd & 3)] = V;
|
||||
FixMMC3PRG(MMC3_cmd);
|
||||
FixMMC3CHR(MMC3_cmd);
|
||||
} else
|
||||
if (A < 0xC000) {
|
||||
if (UNIFchrrama) { // hacky... strange behaviour, must be bit scramble due to pcb layot restrictions
|
||||
// check if it not interfer with other dumps
|
||||
if ((A == 0x8000) && (V == 0x46))
|
||||
V = 0x47;
|
||||
else if ((A == 0x8000) && (V == 0x47))
|
||||
V = 0x46;
|
||||
}
|
||||
MMC3_CMDWrite(A, V);
|
||||
FixMMC3PRG(MMC3_cmd);
|
||||
} else
|
||||
MMC3_IRQWrite(A, V);
|
||||
}
|
||||
}
|
||||
|
||||
static DECLFW(BMCFK23CWrite) {
|
||||
// FCEU_printf("lo %04x:%02x\n",A,V);
|
||||
if (dipswitch) { // íóëåâîé äèï áåðåò ëþáûå çàïèñè ïî äåôîëòó, äàëüøå èäåò âûáîð
|
||||
if (A & (1 << (dipswitch + 3))) {
|
||||
EXPREGS[A & 3] = V;
|
||||
// FCEU_printf(" reg %d set!\n",A&3);
|
||||
FixMMC3PRG(MMC3_cmd);
|
||||
FixMMC3CHR(MMC3_cmd);
|
||||
}
|
||||
} else {
|
||||
EXPREGS[A & 3] = V;
|
||||
// FCEU_printf(" reg %d set!\n",A&3);
|
||||
FixMMC3PRG(MMC3_cmd);
|
||||
FixMMC3CHR(MMC3_cmd);
|
||||
}
|
||||
if (EXPREGS[3] & 2)
|
||||
EXPREGS[0] &= ~7; // hacky hacky! if someone wants extra banking, then for sure doesn't want mode 4 for it! (allow to run A version boards on normal mapper)
|
||||
}
|
||||
|
||||
static void BMCFK23CReset(void) {
|
||||
if (dipswitch <= 8)
|
||||
dipswitch++;
|
||||
else
|
||||
dipswitch = 0;
|
||||
EXPREGS[0] = EXPREGS[1] = EXPREGS[2] = EXPREGS[3] = 0;
|
||||
EXPREGS[4] = EXPREGS[5] = EXPREGS[6] = EXPREGS[7] = 0xFF;
|
||||
MMC3RegReset();
|
||||
FixMMC3PRG(MMC3_cmd);
|
||||
FixMMC3CHR(MMC3_cmd);
|
||||
}
|
||||
|
||||
static void BMCFK23CPower(void) {
|
||||
GenMMC3Power();
|
||||
EXPREGS[0] = 4;
|
||||
EXPREGS[1] = 0xFF;
|
||||
EXPREGS[2] = EXPREGS[3] = 0;
|
||||
dipswitch = 0;
|
||||
EXPREGS[4] = EXPREGS[5] = EXPREGS[6] = EXPREGS[7] = 0xFF;
|
||||
SetWriteHandler(0x5000, 0x5fff, BMCFK23CWrite);
|
||||
SetWriteHandler(0x8000, 0xFFFF, BMCFK23CHiWrite);
|
||||
FixMMC3PRG(MMC3_cmd);
|
||||
FixMMC3CHR(MMC3_cmd);
|
||||
}
|
||||
|
||||
static void BMCFK23CAPower(void) {
|
||||
GenMMC3Power();
|
||||
dipswitch = 0;
|
||||
EXPREGS[0] = EXPREGS[1] = EXPREGS[2] = EXPREGS[3] = 0;
|
||||
EXPREGS[4] = EXPREGS[5] = EXPREGS[6] = EXPREGS[7] = 0xFF;
|
||||
SetWriteHandler(0x5000, 0x5fff, BMCFK23CWrite);
|
||||
SetWriteHandler(0x8000, 0xFFFF, BMCFK23CHiWrite);
|
||||
FixMMC3PRG(MMC3_cmd);
|
||||
FixMMC3CHR(MMC3_cmd);
|
||||
}
|
||||
|
||||
static void BMCFK23CAClose(void) {
|
||||
if (CHRRAM)
|
||||
FCEU_gfree(CHRRAM);
|
||||
CHRRAM = NULL;
|
||||
}
|
||||
|
||||
void BMCFK23C_Init(CartInfo *info) {
|
||||
GenMMC3_Init(info, 512, 256, 128, 0);
|
||||
cwrap = BMCFK23CCW;
|
||||
pwrap = BMCFK23CPW;
|
||||
info->Power = BMCFK23CPower;
|
||||
info->Reset = BMCFK23CReset;
|
||||
AddExState(EXPREGS, 8, 0, "EXPR");
|
||||
AddExState(&unromchr, 1, 0, "UCHR");
|
||||
AddExState(&dipswitch, 1, 0, "DPSW");
|
||||
}
|
||||
|
||||
void BMCFK23CA_Init(CartInfo *info) {
|
||||
GenMMC3_Init(info, 512, 256, 128, 0);
|
||||
cwrap = BMCFK23CCW;
|
||||
pwrap = BMCFK23CPW;
|
||||
info->Power = BMCFK23CAPower;
|
||||
info->Reset = BMCFK23CReset;
|
||||
info->Close = BMCFK23CAClose;
|
||||
|
||||
CHRRAMSize = 8192;
|
||||
CHRRAM = (uint8*)FCEU_gmalloc(CHRRAMSize);
|
||||
SetupCartCHRMapping(0x10, CHRRAM, CHRRAMSize, 1);
|
||||
AddExState(CHRRAM, CHRRAMSize, 0, "CRAM");
|
||||
|
||||
AddExState(EXPREGS, 8, 0, "EXPR");
|
||||
AddExState(&unromchr, 1, 0, "UCHR");
|
||||
AddExState(&dipswitch, 1, 0, "DPSW");
|
||||
}
|
||||
Reference in New Issue
Block a user