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player/Project/Src/NES/mapper/077.cpp

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2025-06-27 00:32:57 +08:00
/////////////////////////////////////////////////////////////////////
// Mapper 77
void NES_mapper77::Reset()
{
// set CPU bank pointers
set_CPU_banks(0,1,2,3);
// for Napoleon Senki
parent_NES->ppu->vram_write_protect = 0;
}
void NES_mapper77::MemoryWrite(uint32 addr, uint8 data)
{
uint8 prg_bank = data & 0x07;
uint8 chr_bank = (data & 0xF0) >> 4;
set_CPU_bank4(prg_bank*4+0);
set_CPU_bank5(prg_bank*4+1);
set_CPU_bank6(prg_bank*4+2);
set_CPU_bank7(prg_bank*4+3);
set_PPU_bank0(chr_bank*2+0);
set_PPU_bank1(chr_bank*2+1);
}
/////////////////////////////////////////////////////////////////////