Files
player/Project/Src/NES/mapper/060.cpp
2025-06-27 00:32:57 +08:00

49 lines
1.2 KiB
C++

#ifdef _NES_MAPPER_CPP_
/////////////////////////////////////////////////////////////////////
// Mapper 60
void NES_mapper60::Reset()
{
set_CPU_banks(0,1,2,3);
set_PPU_banks(0,1,2,3,4,5,6,7);
}
void NES_mapper60::MemoryWrite(uint32 addr, uint8 data)
{
if(addr & 0x80)
{
set_CPU_bank4(2 * ((addr & 0x70) >> 4) + 0);
set_CPU_bank5(2 * ((addr & 0x70) >> 4) + 1);
set_CPU_bank6(2 * ((addr & 0x70) >> 4) + 0);
set_CPU_bank7(2 * ((addr & 0x70) >> 4) + 1);
}
else
{
set_CPU_bank4(4 * ((addr & 0x70) >> 5) + 0);
set_CPU_bank5(4 * ((addr & 0x70) >> 5) + 1);
set_CPU_bank6(4 * ((addr & 0x70) >> 5) + 2);
set_CPU_bank7(4 * ((addr & 0x70) >> 5) + 3);
}
set_PPU_bank0(8 * (addr & 0x07) + 0);
set_PPU_bank1(8 * (addr & 0x07) + 1);
set_PPU_bank2(8 * (addr & 0x07) + 2);
set_PPU_bank3(8 * (addr & 0x07) + 3);
set_PPU_bank4(8 * (addr & 0x07) + 4);
set_PPU_bank5(8 * (addr & 0x07) + 5);
set_PPU_bank6(8 * (addr & 0x07) + 6);
set_PPU_bank7(8 * (addr & 0x07) + 7);
if(data & 0x08)
{
set_mirroring(NES_PPU::MIRROR_HORIZ);
}
else
{
set_mirroring(NES_PPU::MIRROR_VERT);
}
}
/////////////////////////////////////////////////////////////////////
#endif