#include "nes_mapper.h"
 
// Mapper 3
void MAP3_Reset()
{
//  // set CPU bank pointers
//  if(num_8k_ROM_banks > 2)
//  {
//    set_CPU_banks(0,1,2,3);
//  }
//  else
//  {
//    set_CPU_banks(0,1,0,1);
//  }

  // set VROM banks
  set_PPU_banks(0,1,2,3,4,5,6,7);
}

void MAP3_MemoryWrite(uint16 addr, uint8 data)
{
  uint32 base;

  data &= (num_1k_VROM_banks>>1)-1;

  base = ((uint32)data) << 3;
  set_PPU_banks(base+0,base+1,base+2,base+3,base+4,base+5,base+6,base+7);
}
void MAP3_Init()
{
	NES_Mapper->Reset=MAP3_Reset;
	NES_Mapper->Write=MAP3_MemoryWrite;
}