perfect vsync, bugfixes
[fceu.git] / boards / 185.c
CommitLineData
e2d0dd92 1/* FCE Ultra - NES/Famicom Emulator
2 *
3 * Copyright notice for this file:
4 * Copyright (C) 2005 CaH4e3
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 * Family Study Box by Fukutake Shoten
21 */
22
23#include "mapinc.h"
24
25static uint8 *DummyCHR=NULL;
26static uint8 datareg;
27static void(*Sync)(void);
28
29
30static SFORMAT StateRegs[]=
31{
32 {&datareg, 1, "DREG"},
33 {0}
34};
35
36// on off
37//1 0x0F, 0xF0 - Bird Week
38//2 0x33, 0x00 - B-Wings
39//3 0x11, 0x00 - Mighty Bomb Jack
40//4 0x22, 0x20 - Sansuu 1 Nen, Sansuu 2 Nen
41//5 0xFF, 0x00 - Sansuu 3 Nen
42//6 0x21, 0x13 - Spy vs Spy
43//7 0x20, 0x21 - Seicross
44
45static void Sync185(void)
46{
47 // little dirty eh? ;_)
48 if((datareg&3)&&(datareg!=0x13)) // 1, 2, 3, 4, 5, 6
49 setchr8(0);
50 else
51 setchr8r(0x10,0);
52}
53
54static void Sync181(void)
55{
56 if(!(datareg&1)) // 7
57 setchr8(0);
58 else
59 setchr8r(0x10,0);
60}
61
62static DECLFW(MWrite)
63{
64 datareg=V;
65 Sync();
66}
67
68static void MPower(void)
69{
70 datareg=0;
71 Sync();
72 setprg16(0x8000,0);
73 setprg16(0xC000,~0);
74 SetWriteHandler(0x8000,0xFFFF,MWrite);
75 SetReadHandler(0x8000,0xFFFF,CartBR);
76}
77
78static void MClose(void)
79{
80 if(DummyCHR)
81 FCEU_gfree(DummyCHR);
82 DummyCHR=NULL;
83}
84
85static void MRestore(int version)
86{
87 Sync();
88}
89
90void Mapper185_Init(CartInfo *info)
91{
92 Sync=Sync185;
93 info->Power=MPower;
94 info->Close=MClose;
95 GameStateRestore=MRestore;
96 DummyCHR=(uint8*)FCEU_gmalloc(8192);
97 int x;
98 for(x=0;x<8192;x++)
99 DummyCHR[x]=0xff;
100 SetupCartCHRMapping(0x10,DummyCHR,8192,0);
101 AddExState(StateRegs, ~0, 0, 0);
102}
103
104void Mapper181_Init(CartInfo *info)
105{
106 Sync=Sync181;
107 info->Power=MPower;
108 info->Close=MClose;
109 GameStateRestore=MRestore;
110 DummyCHR=(uint8*)FCEU_gmalloc(8192);
111 int x;
112 for(x=0;x<8192;x++)
113 DummyCHR[x]=0xff;
114 SetupCartCHRMapping(0x10,DummyCHR,8192,0);
115 AddExState(StateRegs, ~0, 0, 0);
116}