mirror of https://github.com/bsnes-emu/bsnes.git
41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
struct KonamiVRC6 : Board {
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KonamiVRC6(Markup::Node& document) : Board(document), vrc6(*this) {
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}
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auto prg_read(uint addr) -> uint8{
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if((addr & 0xe000) == 0x6000) return vrc6.ram_read(addr);
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if(addr & 0x8000) return prgrom.read(vrc6.prg_addr(addr));
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return cpu.mdr();
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}
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auto prg_write(uint addr, uint8 data) -> void {
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if((addr & 0xe000) == 0x6000) return vrc6.ram_write(addr, data);
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if(addr & 0x8000) {
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addr = (addr & 0xf003);
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if(prgram.size) addr = (addr & ~3) | ((addr & 2) >> 1) | ((addr & 1) << 1);
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return vrc6.reg_write(addr, data);
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}
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}
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auto chr_read(uint addr) -> uint8 {
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if(addr & 0x2000) return ppu.readCIRAM(vrc6.ciram_addr(addr));
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return Board::chr_read(vrc6.chr_addr(addr));
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}
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auto chr_write(uint addr, uint8 data) -> void {
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if(addr & 0x2000) return ppu.writeCIRAM(vrc6.ciram_addr(addr), data);
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return Board::chr_write(vrc6.chr_addr(addr), data);
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}
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auto serialize(serializer& s) -> void {
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Board::serialize(s);
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vrc6.serialize(s);
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}
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auto main() -> void { vrc6.main(); }
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auto power() -> void { vrc6.power(); }
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auto reset() -> void { vrc6.reset(); }
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VRC6 vrc6;
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};
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