1 /* FCE Ultra - NES/Famicom Emulator
3 * Copyright notice for this file:
4 * Copyright (C) 1998 BERO
5 * Copyright (C) 2002 Xodnizel
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 static void FP_FASTAPASS(1) BandaiIRQHook(int a)
31 X6502_IRQBegin(FCEU_IQEXT);
32 //printf("IRQ: %d, %d\n",scanline,timestamp);
39 static DECLFW(Mapper16_write)
48 case 0x9: switch(V&3) {
49 case 0x00:MIRROR_SET2(1);break;
50 case 0x01:MIRROR_SET2(0);break;
51 case 0x02:onemir(0);break;
52 case 0x03:onemir(1);break;
55 case 0xA:X6502_IRQEnd(FCEU_IQEXT);
59 case 0xB:IRQLatch&=0xFF00;
62 case 0xC:IRQLatch&=0xFF;
65 case 0xD: break;/* Serial EEPROM control port */
70 // 0-7: Lower bit of data selects which 256KB PRG block is in use.
71 // This seems to be a hack on the developers' part, so I'll make emulation
72 // of it a hack(I think the current PRG block would depend on whatever the
73 // lowest bit of the CHR bank switching register that corresponds to the
74 // last CHR address read).
76 static void PRGO(void)
78 uint32 base=(mapbyte1[0]&1)<<4;
79 ROM_BANK16(0x8000,(mapbyte2[0]&0xF)|base);
80 ROM_BANK16(0xC000,base|0xF);
83 static DECLFW(Mapper153_write)
97 case 0x9: switch(V&3) {
98 case 0x00:MIRROR_SET2(1);break;
99 case 0x01:MIRROR_SET2(0);break;
100 case 0x02:onemir(0);break;
101 case 0x03:onemir(1);break;
104 case 0xA:X6502_IRQEnd(FCEU_IQEXT);
108 case 0xB:IRQLatch&=0xFF00;
111 case 0xC:IRQLatch&=0xFF;
117 void Mapper16_init(void)
119 MapIRQHook=BandaiIRQHook;
120 SetWriteHandler(0x6000,0xFFFF,Mapper16_write);
123 void Mapper153_init(void)
125 MapIRQHook=BandaiIRQHook;
126 SetWriteHandler(0x8000,0xFFFF,Mapper153_write);
127 /* This mapper/board seems to have WRAM at $6000-$7FFF, so I'll let the
128 main ines code take care of that memory region. */
132 static uint8 BarcodeData[256];
133 static int BarcodeReadPos;
134 static int BarcodeCycleCount;
135 static uint32 BarcodeOut;
137 int FCEUI_DatachSet(const uint8 *rcode)
139 int prefix_parity_type[10][6] = {
140 {0,0,0,0,0,0}, {0,0,1,0,1,1}, {0,0,1,1,0,1}, {0,0,1,1,1,0},
141 {0,1,0,0,1,1}, {0,1,1,0,0,1}, {0,1,1,1,0,0}, {0,1,0,1,0,1},
142 {0,1,0,1,1,0}, {0,1,1,0,1,0}
144 int data_left_odd[10][7] = {
145 {0,0,0,1,1,0,1}, {0,0,1,1,0,0,1}, {0,0,1,0,0,1,1}, {0,1,1,1,1,0,1},
146 {0,1,0,0,0,1,1}, {0,1,1,0,0,0,1}, {0,1,0,1,1,1,1}, {0,1,1,1,0,1,1},
147 {0,1,1,0,1,1,1}, {0,0,0,1,0,1,1}
149 int data_left_even[10][7] = {
150 {0,1,0,0,1,1,1}, {0,1,1,0,0,1,1}, {0,0,1,1,0,1,1}, {0,1,0,0,0,0,1},
151 {0,0,1,1,1,0,1}, {0,1,1,1,0,0,1}, {0,0,0,0,1,0,1}, {0,0,1,0,0,0,1},
152 {0,0,0,1,0,0,1}, {0,0,1,0,1,1,1}
154 int data_right[10][7] = {
155 {1,1,1,0,0,1,0}, {1,1,0,0,1,1,0}, {1,1,0,1,1,0,0}, {1,0,0,0,0,1,0},
156 {1,0,1,1,1,0,0}, {1,0,0,1,1,1,0}, {1,0,1,0,0,0,0}, {1,0,0,0,1,0,0},
157 {1,0,0,1,0,0,0}, {1,1,1,0,1,0,0}
164 for(i=len=0;i<13;i++)
168 if((code[i]=rcode[i]-'0') > 9)
172 if(len!=13 && len!=12 && len!=8 && len!=7) return(0);
174 #define BS(x) BarcodeData[tmp_p]=x;tmp_p++
181 /* Left guard bars */
184 if(len==13 || len==12)
189 if(prefix_parity_type[code[0]][i])
193 BS(data_left_even[code[i+1]][j]);
199 BS(data_left_odd[code[i+1]][j]);
202 /* Center guard bars */
203 BS(0); BS(1); BS(0); BS(1); BS(0);
208 BS(data_right[code[i]][j]);
211 for(i=0;i<12;i++) csum+=code[i]*((i&1)?3:1);
212 csum=(10-(csum%10))%10;
213 //printf("%d\n",csum);
216 BS(data_right[csum][j]);
220 else if(len==8 || len==7)
224 for(i=0;i<7;i++) csum+=(i&1)?code[i]:(code[i]*3);
226 csum=(10-(csum%10))%10;
231 BS(data_left_odd[code[i]][j]);
235 /* Center guard bars */
236 BS(0); BS(1); BS(0); BS(1); BS(0);
241 BS(data_right[code[i]][j]);
245 { BS(data_right[csum][j]);}
249 /* Right guard bars */
265 static void FP_FASTAPASS(1) BarcodeIRQHook(int a)
269 BarcodeCycleCount+=a;
271 if(BarcodeCycleCount >= 1000)
273 BarcodeCycleCount -= 1000;
274 if(BarcodeData[BarcodeReadPos]==0xFF)
280 BarcodeOut=(BarcodeData[BarcodeReadPos]^1)<<3;
286 static DECLFR(Mapper157_read)
294 void Mapper157_init(void)
296 FCEUGameInfo.cspecial = SIS_DATACH;
297 MapIRQHook=BarcodeIRQHook;
298 SetWriteHandler(0x6000,0xFFFF,Mapper16_write);
299 SetReadHandler(0x6000,0x7FFF,Mapper157_read);