1 /* FCE Ultra - NES/Famicom Emulator
2 *
3 * Copyright notice for this file:
4 * Copyright (C) 2012
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 *
20 * Pegasus 5-in-1 (Golden Five) (Unl)
21 */
22
23 #include "mapinc.h"
24
25 static uint8 preg[2];
26 static uint8 *WRAM = NULL;
27 static uint32 WRAMSIZE;
28
29 static SFORMAT StateRegs[] =
30 {
31 { preg, 2, "PREG" },
32 { 0 }
33 };
34
Sync(void)35 static void Sync(void) {
36 setprg8r(0x10, 0x6000, 0);
37 setprg16(0x8000, preg[0]);
38 setprg16(0xC000, preg[1]);
39 setchr8(0);
40 }
41
DECLFW(M104WriteBank)42 static DECLFW(M104WriteBank) {
43 if ((V & 8) > 0) {
44 preg[0] = ((V << 4) & 0x70) | (preg[0] & 0x0F);
45 preg[1] = ((V << 4) & 0x70) | 0x0F;
46 Sync();
47 }
48 }
49
DECLFW(M104WritePreg)50 static DECLFW(M104WritePreg) {
51 preg[0] = (preg[0] & 0x70) | (V & 0x0F);
52 Sync();
53 }
54
M104Close(void)55 static void M104Close(void) {
56 if (WRAM)
57 FCEU_gfree(WRAM);
58 WRAM = NULL;
59 }
60
M104Power(void)61 static void M104Power(void) {
62 preg[1] = 0x0F;
63 Sync();
64 SetReadHandler(0x6000, 0x7fff, CartBR);
65 SetWriteHandler(0x6000, 0x7fff, CartBW);
66 SetWriteHandler(0x8000, 0x9FFF, M104WriteBank);
67 SetWriteHandler(0xC000, 0xFFFF, M104WritePreg);
68 SetReadHandler(0x8000, 0xFFFF, CartBR);
69 setmirror(MI_V);
70 FCEU_CheatAddRAM(WRAMSIZE >> 10, 0x6000, WRAM);
71 }
72
StateRestore(int version)73 static void StateRestore(int version) {
74 Sync();
75 }
76
Mapper104_Init(CartInfo * info)77 void Mapper104_Init(CartInfo *info) {
78 info->Power = M104Power;
79 info->Close = M104Close;
80 AddExState(&StateRegs, ~0, 0, 0);
81
82 WRAMSIZE = 8192;
83 WRAM = (uint8*)FCEU_gmalloc(WRAMSIZE);
84 SetupCartPRGMapping(0x10, WRAM, WRAMSIZE, 1);
85 AddExState(WRAM, WRAMSIZE, 0, "WRAM");
86 if (info->battery) {
87 info->SaveGame[0] = WRAM;
88 info->SaveGameLen[0] = WRAMSIZE;
89 }
90
91 GameStateRestore = StateRestore;
92 }
93