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/*===================================================================*/
/* */
/* Mapper 193 : MEGA SOFT (NTDEC) : Fighting Hero */
/* */
/*===================================================================*/
/*-------------------------------------------------------------------*/
/* Initialize Mapper 193 */
/*-------------------------------------------------------------------*/
void Map193_Init()
{
/* Initialize Mapper */
MapperInit = Map193_Init;
/* Write to Mapper */
MapperWrite = Map0_Write;
/* Write to SRAM */
MapperSram = Map193_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( (NesHeader.byRomSize<<1) - 4 );
ROMBANK1 = ROMPAGE( (NesHeader.byRomSize<<1) - 3 );
ROMBANK2 = ROMPAGE( (NesHeader.byRomSize<<1) - 2 );
ROMBANK3 = ROMPAGE( (NesHeader.byRomSize<<1) - 1 );
/* Set PPU Banks */
if ( NesHeader.byVRomSize > 0 ) {
for ( int nPage = 0; nPage < 8; ++nPage )
PPUBANK[ nPage ] = VROMPAGE( nPage );
InfoNES_SetupChr();
}
/* Set up wiring of the interrupt pin */
K6502_Set_Int_Wiring( 1, 1 );
}
/*-------------------------------------------------------------------*/
/* Mapper 193 Write to SRAM Function */
/*-------------------------------------------------------------------*/
void Map193_Sram( WORD wAddr, BYTE byData )
{
switch( wAddr ) {
case 0x6000:
PPUBANK[ 0 ] = VROMPAGE( ((byData&0xfc) + 0 ) % ( NesHeader.byVRomSize << 3 ) );
PPUBANK[ 1 ] = VROMPAGE( ((byData&0xfc) + 1 ) % ( NesHeader.byVRomSize << 3 ) );
PPUBANK[ 2 ] = VROMPAGE( ((byData&0xfc) + 2 ) % ( NesHeader.byVRomSize << 3 ) );
PPUBANK[ 3 ] = VROMPAGE( ((byData&0xfc) + 3 ) % ( NesHeader.byVRomSize << 3 ) );
InfoNES_SetupChr();
break;
case 0x6001:
PPUBANK[ 4 ] = VROMPAGE( ( byData + 0 ) % ( NesHeader.byVRomSize << 3 ) );
PPUBANK[ 5 ] = VROMPAGE( ( byData + 1 ) % ( NesHeader.byVRomSize << 3 ) );
InfoNES_SetupChr();
break;
case 0x6002:
PPUBANK[ 6 ] = VROMPAGE( ( byData + 0 ) % ( NesHeader.byVRomSize << 3 ) );
PPUBANK[ 7 ] = VROMPAGE( ( byData + 1 ) % ( NesHeader.byVRomSize << 3 ) );
InfoNES_SetupChr();
break;
case 0x6003:
ROMBANK0 = ROMPAGE( ((byData<<2) + 0 ) % ( NesHeader.byRomSize << 1 ) );
ROMBANK1 = ROMPAGE( ((byData<<2) + 1 ) % ( NesHeader.byRomSize << 1 ) );
ROMBANK2 = ROMPAGE( ((byData<<2) + 2 ) % ( NesHeader.byRomSize << 1 ) );
ROMBANK3 = ROMPAGE( ((byData<<2) + 3 ) % ( NesHeader.byRomSize << 1 ) );
break;
}
}
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