Cleanup
This commit is contained in:
NewRisingSun
committed by
LibretroAdmin
LibretroAdmin
parent
289f1b1519
commit
98d567bae1
@@ -1,389 +0,0 @@
|
||||
/* FCE Ultra - NES/Famicom Emulator
|
||||
*
|
||||
* Copyright notice for this file:
|
||||
* Copyright (C) 2007 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
|
||||
*
|
||||
* VRC-2/VRC-4 Konami
|
||||
* VRC-4 Pirate
|
||||
*
|
||||
*/
|
||||
|
||||
#include "mapinc.h"
|
||||
|
||||
static uint8 isPirate, is22;
|
||||
static uint16 IRQCount;
|
||||
static uint8 IRQLatch, IRQa;
|
||||
static uint8 prgreg[4], chrreg[8];
|
||||
static uint16 chrhi[8];
|
||||
static uint8 regcmd, irqcmd, mirr, big_bank;
|
||||
static uint16 acount = 0;
|
||||
|
||||
static uint8 *WRAM = NULL;
|
||||
static uint32 WRAMSIZE;
|
||||
|
||||
static uint8 prgMask = 0x1F;
|
||||
|
||||
static SFORMAT StateRegs[] =
|
||||
{
|
||||
{ prgreg, 4, "PREG" },
|
||||
{ chrreg, 8, "CREG" },
|
||||
{ &chrhi[0], 2 | FCEUSTATE_RLSB, "CRH0" },
|
||||
{ &chrhi[1], 2 | FCEUSTATE_RLSB, "CRH1" },
|
||||
{ &chrhi[2], 2 | FCEUSTATE_RLSB, "CRH2" },
|
||||
{ &chrhi[3], 2 | FCEUSTATE_RLSB, "CRH3" },
|
||||
{ &chrhi[4], 2 | FCEUSTATE_RLSB, "CRH4" },
|
||||
{ &chrhi[5], 2 | FCEUSTATE_RLSB, "CRH5" },
|
||||
{ &chrhi[6], 2 | FCEUSTATE_RLSB, "CRH6" },
|
||||
{ &chrhi[7], 2 | FCEUSTATE_RLSB, "CRH7" },
|
||||
{ ®cmd, 1, "CMDR" },
|
||||
{ &irqcmd, 1, "CMDI" },
|
||||
{ &mirr, 1, "MIRR" },
|
||||
{ &prgMask, 1, "MAK" },
|
||||
{ &big_bank, 1, "BIGB" },
|
||||
{ &IRQCount, 2 | FCEUSTATE_RLSB, "IRQC" },
|
||||
{ &IRQLatch, 1, "IRQL" },
|
||||
{ &IRQa, 1, "IRQA" },
|
||||
{ 0 }
|
||||
};
|
||||
|
||||
static void Sync(void) {
|
||||
if (regcmd & 2) {
|
||||
setprg8(0xC000, prgreg[0] | big_bank);
|
||||
setprg8(0x8000, (prgreg[2] & prgMask) | big_bank);
|
||||
} else {
|
||||
setprg8(0x8000, prgreg[0] | big_bank);
|
||||
setprg8(0xC000, (prgreg[2] & prgMask) | big_bank);
|
||||
}
|
||||
setprg8(0xA000, prgreg[1] | big_bank);
|
||||
setprg8(0xE000, (prgreg[3] & prgMask) | big_bank);
|
||||
if (UNIFchrrama)
|
||||
setchr8(0);
|
||||
else {
|
||||
uint8 i;
|
||||
for (i = 0; i < 8; i++)
|
||||
setchr1(i << 10, (chrhi[i] | chrreg[i]) >> is22);
|
||||
}
|
||||
switch (mirr & 0x3) {
|
||||
case 0: setmirror(MI_V); break;
|
||||
case 1: setmirror(MI_H); break;
|
||||
case 2: setmirror(MI_0); break;
|
||||
case 3: setmirror(MI_1); break;
|
||||
}
|
||||
}
|
||||
|
||||
static DECLFW(VRC24Write) {
|
||||
A &= 0xF003;
|
||||
if ((A >= 0xB000) && (A <= 0xE003)) {
|
||||
if (UNIFchrrama)
|
||||
big_bank = (V & 8) << 2; /* my personally many-in-one feature ;) just for support pirate cart 2-in-1 */
|
||||
else {
|
||||
uint16 i = ((A >> 1) & 1) | ((A - 0xB000) >> 11);
|
||||
uint16 nibble = ((A & 1) << 2);
|
||||
chrreg[i] = (chrreg[i] & (0xF0 >> nibble)) | ((V & 0xF) << nibble);
|
||||
if (nibble)
|
||||
chrhi[i] = (V & 0x10) << 4; /* another one many in one feature from pirate carts */
|
||||
}
|
||||
Sync();
|
||||
} else {
|
||||
switch (A & 0xF003) {
|
||||
case 0x8000:
|
||||
case 0x8001:
|
||||
case 0x8002:
|
||||
case 0x8003:
|
||||
if (!isPirate) {
|
||||
prgreg[0] = V & prgMask;
|
||||
Sync();
|
||||
}
|
||||
break;
|
||||
case 0xA000:
|
||||
case 0xA001:
|
||||
case 0xA002:
|
||||
case 0xA003:
|
||||
if (!isPirate)
|
||||
{
|
||||
prgreg[1] = V & prgMask;
|
||||
}
|
||||
else {
|
||||
prgreg[0] = (V & prgMask) << 1;
|
||||
prgreg[1] = ((V & prgMask) << 1) | 1;
|
||||
}
|
||||
Sync();
|
||||
break;
|
||||
case 0x9000:
|
||||
case 0x9001: if (V != 0xFF) mirr = V; Sync(); break;
|
||||
case 0x9002:
|
||||
case 0x9003: regcmd = V; Sync(); break;
|
||||
case 0xF000: X6502_IRQEnd(FCEU_IQEXT); IRQLatch &= 0xF0; IRQLatch |= V & 0xF; break;
|
||||
case 0xF001: X6502_IRQEnd(FCEU_IQEXT); IRQLatch &= 0x0F; IRQLatch |= V << 4; break;
|
||||
case 0xF002: X6502_IRQEnd(FCEU_IQEXT); acount = 0; IRQCount = IRQLatch; IRQa = V & 2; irqcmd = V & 1; break;
|
||||
case 0xF003: X6502_IRQEnd(FCEU_IQEXT); IRQa = irqcmd; break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static DECLFW(M21Write) {
|
||||
A = (A & 0xF000) | ((A >> 1) & 0x3) | ((A >> 6) & 0x3); /* Ganbare Goemon Gaiden 2 - Tenka no Zaihou (J) [!] is Mapper 21*/
|
||||
VRC24Write(A, V);
|
||||
}
|
||||
|
||||
static DECLFW(M22Write) {
|
||||
#if 0
|
||||
/* Removed this hack, which was a bug in actual game cart.
|
||||
* http://forums.nesdev.com/viewtopic.php?f=3&t=6584
|
||||
*/
|
||||
if ((A >= 0xC004) && (A <= 0xC007)) { /* Ganbare Goemon Gaiden does strange things!!! at the end credits
|
||||
weirdo = 1; * quick dirty hack, seems there is no other games with such PCB, so
|
||||
* we never know if it will not work for something else lol
|
||||
*/
|
||||
}
|
||||
#endif
|
||||
A |= ((A >> 2) & 0x3); /* It's just swapped lines from 21 mapper
|
||||
*/
|
||||
VRC24Write((A & 0xF000) | ((A >> 1) & 1) | ((A << 1) & 2), V);
|
||||
}
|
||||
|
||||
static DECLFW(M23Write) {
|
||||
A |= ((A >> 2) & 0x3) | ((A >> 4) & 0x3); /* actually there is many-in-one mapper source, some pirate or
|
||||
* licensed games use various address bits for registers
|
||||
*/
|
||||
VRC24Write(A, V);
|
||||
}
|
||||
|
||||
static void VRC24PowerCommon(void (*WRITEFUNC)(uint32 A, uint8 V)) {
|
||||
Sync();
|
||||
if (WRAMSIZE) {
|
||||
setprg8r(0x10, 0x6000, 0); /* Only two Goemon games are have battery backed RAM, three more shooters
|
||||
* (Parodius Da!, Gradius 2 and Crisis Force uses 2k or SRAM at 6000-67FF only
|
||||
*/
|
||||
SetReadHandler(0x6000, 0x7FFF, CartBR);
|
||||
SetWriteHandler(0x6000, 0x7FFF, CartBW);
|
||||
FCEU_CheatAddRAM(WRAMSIZE >> 10, 0x6000, WRAM);
|
||||
}
|
||||
SetReadHandler(0x8000, 0xFFFF, CartBR);
|
||||
SetWriteHandler(0x8000, 0xFFFF, WRITEFUNC);
|
||||
}
|
||||
|
||||
static void M21Power(void) {
|
||||
VRC24PowerCommon(M21Write);
|
||||
}
|
||||
|
||||
static void M22Power(void) {
|
||||
VRC24PowerCommon(M22Write);
|
||||
}
|
||||
|
||||
static void M23Power(void) {
|
||||
big_bank = 0x20;
|
||||
if ((prgreg[2] == 0x30) && (prgreg[3] == 0x31))
|
||||
big_bank = 0x00;
|
||||
VRC24PowerCommon(M23Write);
|
||||
}
|
||||
|
||||
static void M25Power(void) {
|
||||
big_bank = 0x20;
|
||||
VRC24PowerCommon(M22Write);
|
||||
}
|
||||
|
||||
void FP_FASTAPASS(1) VRC24IRQHook(int a) {
|
||||
#define LCYCS 341
|
||||
if (IRQa) {
|
||||
acount += a * 3;
|
||||
if (acount >= LCYCS) {
|
||||
while (acount >= LCYCS) {
|
||||
acount -= LCYCS;
|
||||
IRQCount++;
|
||||
if (IRQCount & 0x100) {
|
||||
X6502_IRQBegin(FCEU_IQEXT);
|
||||
IRQCount = IRQLatch;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void StateRestore(int version) {
|
||||
Sync();
|
||||
}
|
||||
|
||||
static void VRC24Close(void) {
|
||||
if (WRAM)
|
||||
FCEU_gfree(WRAM);
|
||||
WRAM = NULL;
|
||||
}
|
||||
|
||||
static void VRC24_Init(CartInfo *info, uint32 hasWRAM) {
|
||||
info->Close = VRC24Close;
|
||||
MapIRQHook = VRC24IRQHook;
|
||||
GameStateRestore = StateRestore;
|
||||
|
||||
prgMask = 0x1F;
|
||||
prgreg[2] = ~1;
|
||||
prgreg[3] = ~0;
|
||||
|
||||
WRAMSIZE = 0;
|
||||
|
||||
/* 400K PRG + 128K CHR Contra rom hacks */
|
||||
if (info->PRGRomSize == 400 * 1024 && info->CHRRomSize == 128 * 1024) {
|
||||
prgreg[2] = 0x30;
|
||||
prgreg[3] = 0x31;
|
||||
prgMask = 0x3F;
|
||||
}
|
||||
|
||||
if (hasWRAM) {
|
||||
WRAMSIZE = 8192;
|
||||
WRAM = (uint8*)FCEU_gmalloc(WRAMSIZE);
|
||||
SetupCartPRGMapping(0x10, WRAM, WRAMSIZE, 1);
|
||||
AddExState(WRAM, WRAMSIZE, 0, "WRAM");
|
||||
|
||||
if (info->battery) {
|
||||
info->SaveGame[0] = WRAM;
|
||||
info->SaveGameLen[0] = WRAMSIZE;
|
||||
}
|
||||
}
|
||||
|
||||
AddExState(&StateRegs, ~0, 0, 0);
|
||||
}
|
||||
|
||||
void Mapper21_Init(CartInfo *info) {
|
||||
isPirate = 0;
|
||||
is22 = 0;
|
||||
info->Power = M21Power;
|
||||
VRC24_Init(info, 1);
|
||||
}
|
||||
|
||||
void Mapper22_Init(CartInfo *info) {
|
||||
isPirate = 0;
|
||||
is22 = 1;
|
||||
info->Power = M22Power;
|
||||
VRC24_Init(info, 0);
|
||||
}
|
||||
|
||||
void Mapper23_Init(CartInfo *info) {
|
||||
isPirate = 0;
|
||||
is22 = 0;
|
||||
info->Power = M23Power;
|
||||
VRC24_Init(info, 1);
|
||||
}
|
||||
|
||||
void Mapper25_Init(CartInfo *info) {
|
||||
isPirate = 0;
|
||||
is22 = 0;
|
||||
info->Power = M25Power;
|
||||
VRC24_Init(info, 1);
|
||||
}
|
||||
|
||||
void UNLT230_Init(CartInfo *info) {
|
||||
isPirate = 1;
|
||||
is22 = 0;
|
||||
info->Power = M23Power;
|
||||
VRC24_Init(info, 1);
|
||||
}
|
||||
|
||||
/* -------------------- UNL-TH2131-1 -------------------- */
|
||||
/* https://wiki.nesdev.com/w/index.php/NES_2.0_Mapper_308
|
||||
* NES 2.0 Mapper 308 is used for a bootleg version of the Sunsoft game Batman
|
||||
* similar to Mapper 23 Submapper 3) with custom IRQ functionality.
|
||||
* UNIF board name is UNL-TH2131-1.
|
||||
*/
|
||||
|
||||
static DECLFW(TH2131Write) {
|
||||
switch (A & 0xF003) {
|
||||
case 0xF000: X6502_IRQEnd(FCEU_IQEXT); IRQa = 0; IRQCount = 0; break;
|
||||
case 0xF001: IRQa = 1; break;
|
||||
case 0xF003: IRQLatch = (V & 0xF0) >> 4; break;
|
||||
}
|
||||
}
|
||||
|
||||
void FP_FASTAPASS(1) TH2131IRQHook(int a) {
|
||||
int count;
|
||||
|
||||
if (!IRQa)
|
||||
return;
|
||||
|
||||
for (count = 0; count < a; count++) {
|
||||
IRQCount++;
|
||||
if ((IRQCount & 0x0FFF) == 2048)
|
||||
IRQLatch--;
|
||||
if (!IRQLatch && (IRQCount & 0x0FFF) < 2048)
|
||||
X6502_IRQBegin(FCEU_IQEXT);
|
||||
}
|
||||
}
|
||||
|
||||
static void TH2131Power(void) {
|
||||
VRC24PowerCommon(VRC24Write);
|
||||
SetWriteHandler(0xF000, 0xFFFF, TH2131Write);
|
||||
}
|
||||
|
||||
void UNLTH21311_Init(CartInfo *info) {
|
||||
info->Power = TH2131Power;
|
||||
VRC24_Init(info, 1);
|
||||
MapIRQHook = TH2131IRQHook;
|
||||
}
|
||||
|
||||
/* -------------------- UNL-KS7021A -------------------- */
|
||||
/* http://wiki.nesdev.com/w/index.php/NES_2.0_Mapper_525
|
||||
* NES 2.0 Mapper 525 is used for a bootleg version of versions of Contra and 月風魔伝 (Getsu Fūma Den).
|
||||
* Its similar to Mapper 23 Submapper 3) with non-nibblized CHR-ROM bank registers.
|
||||
*/
|
||||
|
||||
static DECLFW(KS7021AWrite) {
|
||||
switch (A & 0xB000) {
|
||||
case 0xB000: chrreg[A & 0x07] = V; Sync(); break;
|
||||
}
|
||||
}
|
||||
|
||||
static void KS7021APower(void) {
|
||||
VRC24PowerCommon(VRC24Write);
|
||||
SetWriteHandler(0xB000, 0xBFFF, KS7021AWrite);
|
||||
}
|
||||
|
||||
void UNLKS7021A_Init(CartInfo *info) {
|
||||
info->Power = KS7021APower;
|
||||
VRC24_Init(info, 1);
|
||||
}
|
||||
|
||||
/* -------------------- BTL-900218 -------------------- */
|
||||
/* http://wiki.nesdev.com/w/index.php/UNIF/900218
|
||||
* NES 2.0 Mapper 524 describes the PCB used for the pirate port Lord of King or Axe of Fight.
|
||||
* UNIF board name is BTL-900218.
|
||||
*/
|
||||
|
||||
static DECLFW(BTL900218Write) {
|
||||
switch (A & 0xF00C) {
|
||||
case 0xF008: IRQa = 1; break;
|
||||
case 0xF00C: X6502_IRQEnd(FCEU_IQEXT); IRQa = 0; IRQCount = 0; break;
|
||||
}
|
||||
}
|
||||
|
||||
void FP_FASTAPASS(1) BTL900218IRQHook(int a) {
|
||||
if (!IRQa)
|
||||
return;
|
||||
|
||||
IRQCount += a;
|
||||
if (IRQCount & 1024)
|
||||
X6502_IRQBegin(FCEU_IQEXT);
|
||||
}
|
||||
|
||||
static void BTL900218Power(void) {
|
||||
VRC24PowerCommon(VRC24Write);
|
||||
SetWriteHandler(0xF000, 0xFFFF, BTL900218Write);
|
||||
}
|
||||
|
||||
void BTL900218_Init(CartInfo *info) {
|
||||
info->Power = BTL900218Power;
|
||||
VRC24_Init(info, 1);
|
||||
MapIRQHook = BTL900218IRQHook;
|
||||
}
|
||||
Reference in New Issue
Block a user