blob: d4132b8b4eba1d73d722e2571c863e20c19886e9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
/*===================================================================*/
/* */
/* Mapper 13 : CPROM */
/* */
/*===================================================================*/
/*-------------------------------------------------------------------*/
/* Initialize Mapper 13 */
/*-------------------------------------------------------------------*/
void Map13_Init()
{
/* Initialize Mapper */
MapperInit = Map13_Init;
/* Write to Mapper */
MapperWrite = Map13_Write;
/* Write to SRAM */
MapperSram = Map0_Sram;
/* Write to APU */
MapperApu = Map0_Apu;
/* Read from APU */
MapperReadApu = Map0_ReadApu;
/* Callback at VSync */
MapperVSync = Map0_VSync;
/* Callback at HSync */
MapperHSync = Map0_HSync;
/* Callback at PPU */
MapperPPU = Map0_PPU;
/* Callback at Rendering Screen ( 1:BG, 0:Sprite ) */
MapperRenderScreen = Map0_RenderScreen;
/* Set SRAM Banks */
SRAMBANK = SRAM;
/* Set ROM Banks */
ROMBANK0 = ROMPAGE( 0 );
ROMBANK1 = ROMPAGE( 1 );
ROMBANK2 = ROMPAGE( 2 );
ROMBANK3 = ROMPAGE( 3 );
/* Set PPU Banks */
PPUBANK[ 0 ] = CRAMPAGE( 0 );
PPUBANK[ 1 ] = CRAMPAGE( 1 );
PPUBANK[ 2 ] = CRAMPAGE( 2 );
PPUBANK[ 3 ] = CRAMPAGE( 3 );
PPUBANK[ 4 ] = CRAMPAGE( 0 );
PPUBANK[ 5 ] = CRAMPAGE( 1 );
PPUBANK[ 6 ] = CRAMPAGE( 2 );
PPUBANK[ 7 ] = CRAMPAGE( 3 );
InfoNES_SetupChr();
/* Set up wiring of the interrupt pin */
K6502_Set_Int_Wiring( 1, 1 );
}
/*-------------------------------------------------------------------*/
/* Mapper 13 Write Function */
/*-------------------------------------------------------------------*/
void Map13_Write( WORD wAddr, BYTE byData )
{
/* Set ROM Banks */
ROMBANK0 = ROMPAGE((((byData&0x30)>>2)+0) % (NesHeader.byRomSize<<1));
ROMBANK1 = ROMPAGE((((byData&0x30)>>2)+1) % (NesHeader.byRomSize<<1));
ROMBANK2 = ROMPAGE((((byData&0x30)>>2)+2) % (NesHeader.byRomSize<<1));
ROMBANK3 = ROMPAGE((((byData&0x30)>>2)+3) % (NesHeader.byRomSize<<1));
/* Set PPU Banks */
PPUBANK[ 4 ] = CRAMPAGE(((byData&0x03)<<2)+0);
PPUBANK[ 5 ] = CRAMPAGE(((byData&0x03)<<2)+1);
PPUBANK[ 6 ] = CRAMPAGE(((byData&0x03)<<2)+2);
PPUBANK[ 7 ] = CRAMPAGE(((byData&0x03)<<2)+3);
InfoNES_SetupChr();
}
|
