/* FCE Ultra - NES/Famicom Emulator
*
* Copyright notice for this file:
- * Copyright (C) 2002 Xodnizel
+ * Copyright (C) 2002 Xodnizel 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
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * It seems that 162/163/164 mappers are the same mapper with just different
+ * mapper modes enabled or disabled in software or hardware, need more nanjing
+ * carts
*/
#include "mapinc.h"
-static uint8 cmd;
-static uint8 DRegs[8];
+static uint8 laststrobe, trigger;
+static uint8 reg[8];
+static uint8 *WRAM=NULL;
+static uint32 WRAMSIZE;
+
+static void(*WSync)(void);
static SFORMAT StateRegs[]=
{
- {&cmd, 1, "CMD"},
- {DRegs, 8, "DREG"},
+ {&laststrobe, 1, "STB"},
+ {&trigger, 1, "TRG"},
+ {reg, 8, "REGS"},
{0}
};
+/*
+const EEPROM_interface eeprom_interface. =
+{
+ 9, // address bits 9
+ 8, // data bits 8
+ "*110", // read 1 10 aaaaaaaaa
+ "*101", // write 1 01 aaaaaaaaa dddddddd
+. "*10000xxxxxxx", // lock 1 00 00xxxxxxx
+ "*10011xxxxxxx", // unlock 1 00 11xxxxxxx
+ 1,
+ 5
+};
+
+static const EEPROM_interface *intf;
+
+static int serial_count = 0;
+static u8 serial_buffer[SERIAL_BUFFER_LENGTH];
+
+static int eeprom_data_bits;
+static int eeprom_clock_count;
+static int eeprom_read_address;
+static u8 *eeprom_data;
+
+static int latch = 0;
+static int locked = 1;
+static int sending = 0;
+static int reset_line = ASSERT_LINE;
+static int clock_line = ASSERT_LINE;
+static int reset_delay;
+
+void EEPROM_Init(u8 *data, u8 bit)
+{
+ eeprom_data = data;
+ if(bit == 8)
+ intf = &eeprom_interface_93C46_8;
+ else
+ intf = &eeprom_interface_93C46_16;
+}
+
+u8 *EEPROM_GetData()
+{
+ return eeprom_data;
+}
+
+static int EEPROM_command_match(const char *buf, const char *cmd, int len)
+{
+ if ( cmd == 0 ) return 0;
+ if ( len == 0 ) return 0;
+
+ for (;len>0;)
+ {
+ char b = *buf;
+ char c = *cmd;
+
+ if ((b==0) || (c==0))
+ return (b==c);
+
+ switch ( c )
+ {
+ case '0':
+ case '1':
+ if (b != c) return 0;
+ case 'X':
+ case 'x':
+ buf++;
+ len--;
+ cmd++;
+ break;
+
+ case '*':
+ c = cmd[1];
+ switch( c )
+ {
+ case '0':
+ case '1':
+ if (b == c) { cmd++; }
+ else { buf++; len--; }
+ break;
+ default: return 0;
+ }
+ }
+ }
+ return (*cmd==0);
+}
+
+static void EEPROM_write(int bit)
+{
+ if (serial_count >= SERIAL_BUFFER_LENGTH-1)
+ {
+ return;
+ }
+
+ serial_buffer[serial_count++] = (bit ? '1' : '0');
+ serial_buffer[serial_count] = 0;
+
+ if ( (serial_count > intf->address_bits) &&
+ EEPROM_command_match((char*)serial_buffer,intf->cmd_read,(int)strlen((char*)serial_buffer)-intf->address_bits) )
+ {
+ int i,address;
+
+ address = 0;
+ for (i = serial_count-intf->address_bits;i < serial_count;i++)
+ {
+ address <<= 1;
+ if (serial_buffer[i] == '1') address |= 1;
+ }
+ if (intf->data_bits == 16)
+ eeprom_data_bits = (eeprom_data[2*address+0] << 8) + eeprom_data[2*address+1];
+ else
+ eeprom_data_bits = eeprom_data[address];
+ eeprom_read_address = address;
+ eeprom_clock_count = 0;
+ sending = 1;
+ serial_count = 0;
+ }
+ else if ( (serial_count > intf->address_bits) &&
+ EEPROM_command_match((char*)serial_buffer,intf->cmd_erase,(int)strlen((char*)serial_buffer)-intf->address_bits) )
+ {
+ int i,address;
+
+ address = 0;
+ for (i = serial_count-intf->address_bits;i < serial_count;i++)
+ {
+ address <<= 1;
+ if (serial_buffer[i] == '1') address |= 1;
+ }
+
+ if (locked == 0)
+ {
+ if (intf->data_bits == 16)
+ {
+ eeprom_data[2*address+0] = 0x00;
+ eeprom_data[2*address+1] = 0x00;
+ }
+ else
+ eeprom_data[address] = 0x00;
+ }
+ else
+ serial_count = 0;
+ }
+ else if ( (serial_count > (intf->address_bits + intf->data_bits)) &&
+ EEPROM_command_match((char*)serial_buffer,intf->cmd_write,(int)strlen((char*)serial_buffer)-(intf->address_bits + intf->data_bits)) )
+ {
+ int i,address,data;
+
+ address = 0;
+ for (i = serial_count-intf->data_bits-intf->address_bits;i < (serial_count-intf->data_bits);i++)
+ {
+ address <<= 1;
+ if (serial_buffer[i] == '1') address |= 1;
+ }
+ data = 0;
+ for (i = serial_count-intf->data_bits;i < serial_count;i++)
+ {
+ data <<= 1;
+ if (serial_buffer[i] == '1') data |= 1;
+ }
+ if (locked == 0)
+ {
+ if (intf->data_bits == 16)
+ {
+ eeprom_data[2*address+0] = data >> 8;
+ eeprom_data[2*address+1] = data & 0xff;
+ }
+ else
+ eeprom_data[address] = data;
+ }
+ else
+ serial_count = 0;
+ }
+ else if ( EEPROM_command_match((char*)serial_buffer,intf->cmd_lock,(int)strlen((char*)serial_buffer)) )
+ {
+ locked = 1;
+ serial_count = 0;
+ }
+ else if ( EEPROM_command_match((char*)serial_buffer,intf->cmd_unlock,(int)strlen((char*)serial_buffer)) )
+ {
+ locked = 0;
+ serial_count = 0;
+ }
+}
+
+static void EEPROM_reset()
+{
+ serial_count = 0;
+ sending = 0;
+ reset_delay = intf->reset_delay;
+}
+
+void EEPROM_set_cs_line(int state)
+{
+ reset_line = state;
+
+ if (reset_line != CLEAR_LINE)
+ EEPROM_reset();
+}
+
+void EEPROM_set_clock_line(int state)
+{
+ if (state == PULSE_LINE || (clock_line == CLEAR_LINE && state != CLEAR_LINE))
+ {
+ if (reset_line == CLEAR_LINE)
+ {
+ if (sending)
+ {
+ if (eeprom_clock_count == intf->data_bits)
+ {
+ if(intf->enable_multi_read)
+ {
+ eeprom_read_address = (eeprom_read_address + 1) & ((1 << intf->address_bits) - 1);
+ if (intf->data_bits == 16)
+ eeprom_data_bits = (eeprom_data[2*eeprom_read_address+0] << 8) + eeprom_data[2*eeprom_read_address+1];
+ else
+ eeprom_data_bits = eeprom_data[eeprom_read_address];
+ eeprom_clock_count = 0;
+ }
+ else
+ {
+ sending = 0;
+ }
+ }
+ eeprom_data_bits = (eeprom_data_bits << 1) | 1;
+ eeprom_clock_count++;
+ }
+ else
+ EEPROM_write(latch);
+ }
+ }
+
+ clock_line = state;
+}
+
+
+void EEPROM_write_bit(int bit)
+{
+ latch = bit;
+}
+
+int EEPROM_read_bit(void)
+{
+ int res;
+
+ if (sending)
+ res = (eeprom_data_bits >> intf->data_bits) & 1;
+ else
+ {
+ if (reset_delay > 0)
+ {
+ reset_delay--;
+ res = 0;
+ }
+ else
+ res = 1;
+ }
+
+ return res;
+}
+*/
+
static void Sync(void)
{
- setprg32(0x8000,(DRegs[0]<<4)|(DRegs[1]&0xF));
+ setprg8r(0x10,0x6000,0);
+ setprg32(0x8000,(reg[0]<<4)|(reg[1]&0xF));
+ setchr8(0);
}
static void StateRestore(int version)
{
- Sync();
+ WSync();
+}
+
+static DECLFR(ReadLow)
+{
+ switch (A&0x7700)
+ {
+ case 0x5100: return reg[2]|reg[0]|reg[1]|reg[3]^0xff; break;
+ case 0x5500: if(trigger)
+ return reg[2]|reg[1]; // Lei Dian Huang Bi Ka Qiu Chuan Shuo (NJ046) may broke other games
+ else
+ return 0;
+ }
+ return 4;
+}
+
+static void M163HB(void)
+{
+ if(reg[1]&0x80)
+ {
+ if(scanline==239)
+ {
+ setchr4(0x0000,0);
+ setchr4(0x1000,0);
+ }
+ else if(scanline==127)
+ {
+ setchr4(0x0000,1);
+ setchr4(0x1000,1);
+ }
+/*
+ if(scanline>=127) // Hu Lu Jin Gang (NJ039) (Ch) [!] don't like it
+ {
+ setchr4(0x0000,1);
+ setchr4(0x1000,1);
+ }
+ else
+ {
+ setchr4(0x0000,0);
+ setchr4(0x1000,0);
+ }
+*/
+ }
}
static DECLFW(Write)
{
switch (A&0x7300)
{
- case 0x5100: DRegs[0]=V; Sync(); break;
- case 0x5000: DRegs[1]=V; Sync(); break;
+ case 0x5100: reg[0]=V; WSync(); break;
+ case 0x5000: reg[1]=V; WSync(); break;
+ case 0x5300: reg[2]=V; break;
+ case 0x5200: reg[3]=V; WSync(); break;
}
}
+static void Power(void)
+{
+ memset(reg,0,8);
+ reg[1]=0xFF;
+ SetWriteHandler(0x5000,0x5FFF,Write);
+ SetReadHandler(0x6000,0xFFFF,CartBR);
+ SetWriteHandler(0x6000,0x7FFF,CartBW);
+ WSync();
+}
+
+static void Close(void)
+{
+ if(WRAM)
+ FCEU_gfree(WRAM);
+ WRAM=NULL;
+}
+
+void Mapper164_Init(CartInfo *info)
+{
+ info->Power=Power;
+ info->Close=Close;
+ WSync = Sync;
+
+ 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;
+ }
+
+ GameStateRestore=StateRestore;
+ AddExState(&StateRegs, ~0, 0, 0);
+}
+
static DECLFW(Write2)
{
+ if(A==0x5101)
+ {
+ if(laststrobe&&!V)
+ {
+ trigger^=1;
+ }
+ laststrobe=V;
+ }else if(A==0x5100&&V==6) //damn thoose protected games
+ setprg32(0x8000,3);
+ else
switch (A&0x7300)
{
- case 0x5200: DRegs[0]=V; Sync(); break;
- case 0x5000: DRegs[1]=V; Sync(); break;
+ case 0x5200: reg[0]=V; WSync(); break;
+ case 0x5000: reg[1]=V; WSync(); if(!(reg[1]&0x80)&&(scanline<128)) setchr8(0); /* setchr8(0); */ break;
+ case 0x5300: reg[2]=V; break;
+ case 0x5100: reg[3]=V; WSync(); break;
}
}
-static uint8 WRAM[8192];
-static DECLFR(AWRAM)
+static void Power2(void)
{
- return(WRAM[A-0x6000]);
+ memset(reg,0,8);
+ laststrobe=1;
+ SetReadHandler(0x5000,0x5FFF,ReadLow);
+ SetWriteHandler(0x5000,0x5FFF,Write2);
+ SetReadHandler(0x6000,0xFFFF,CartBR);
+ SetWriteHandler(0x6000,0x7FFF,CartBW);
+ WSync();
}
-static DECLFW(BWRAM)
+void Mapper163_Init(CartInfo *info)
{
- WRAM[A-0x6000]=V;
+ info->Power=Power2;
+ info->Close=Close;
+ WSync = Sync;
+ GameHBIRQHook=M163HB;
+
+ 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;
+ }
+ GameStateRestore=StateRestore;
+ AddExState(&StateRegs, ~0, 0, 0);
}
-static void Power(void)
+static void Sync3(void)
{
- memset(DRegs,0,8);
- DRegs[1]=0xFF;
setchr8(0);
- cmd=0;
- SetReadHandler(0x8000,0xFFFF,CartBR);
- SetWriteHandler(0x4020,0xFFFF,Write);
- SetReadHandler(0x6000,0x7FFF,AWRAM);
- SetWriteHandler(0x6000,0x7FFF,BWRAM);
- Sync();
+ setprg8r(0x10,0x6000,0);
+ switch(reg[3]&7){
+ case 0:
+ case 2: setprg32(0x8000,(reg[0]&0xc)|(reg[1]&2)|((reg[2]&0xf)<<4)); break;
+ case 1:
+ case 3: setprg32(0x8000,(reg[0]&0xc)|(reg[2]&0xf)<<4); break;
+ case 4:
+ case 6: setprg32(0x8000,(reg[0]&0xe)|((reg[1]>>1)&1)|((reg[2]&0xf)<<4)); break;
+ case 5:
+ case 7: setprg32(0x8000,(reg[0]&0xf)|((reg[2]&0xf)<<4)); break;
+ }
}
-static void Power2(void)
+static DECLFW(Write3)
{
- memset(DRegs,0,8);
- DRegs[1]=0xFF;
- setchr8(0);
- cmd=0;
- SetReadHandler(0x8000,0xFFFF,CartBR);
- SetWriteHandler(0x4020,0xFFFF,Write2);
- SetReadHandler(0x6000,0x7FFF,AWRAM);
- SetWriteHandler(0x6000,0x7FFF,BWRAM);
- Sync();
+// FCEU_printf("bs %04x %02x\n",A,V);
+ reg[(A>>8)&3]=V;
+ WSync();
}
-void Mapper164_Init(CartInfo *info)
+static void Power3(void)
{
- info->Power=Power;
- GameStateRestore=StateRestore;
- AddExState(&StateRegs, ~0, 0, 0);
+ reg[0]=3;
+ reg[1]=0;
+ reg[2]=0;
+ reg[3]=7;
+ SetWriteHandler(0x5000,0x5FFF,Write3);
+ SetReadHandler(0x6000,0xFFFF,CartBR);
+ SetWriteHandler(0x6000,0x7FFF,CartBW);
+ WSync();
}
-void Mapper163_Init(CartInfo *info)
+void UNLFS304_Init(CartInfo *info)
{
- info->Power=Power2;
+ info->Power=Power3;
+ info->Close=Close;
+ WSync = Sync3;
+
+ 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;
+ }
+
GameStateRestore=StateRestore;
AddExState(&StateRegs, ~0, 0, 0);
}