mirror of https://github.com/bsnes-emu/bsnes.git
68 lines
1.2 KiB
C++
Executable File
68 lines
1.2 KiB
C++
Executable File
struct NES_TxROM : Board {
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enum class Revision : unsigned {
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TBROM,
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TEROM,
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TFROM,
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TGROM,
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TKROM,
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TKSROM,
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TLROM,
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TL1ROM,
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TL2ROM,
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TLSROM,
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TNROM,
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TQROM,
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TR1ROM,
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TSROM,
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TVROM,
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} revision;
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MMC3 mmc3;
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void main() {
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mmc3.main();
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}
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uint8 prg_read(unsigned addr) {
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if((addr & 0xe000) == 0x6000) return mmc3.ram_read(addr);
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if(addr & 0x8000) return prgrom.read(mmc3.prg_addr(addr));
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return cpu.mdr();
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}
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void prg_write(unsigned addr, uint8 data) {
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if((addr & 0xe000) == 0x6000) return mmc3.ram_write(addr, data);
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if(addr & 0x8000) return mmc3.reg_write(addr, data);
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}
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uint8 chr_read(unsigned addr) {
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mmc3.irq_test(addr);
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if(addr & 0x2000) return ppu.ciram_read(mmc3.ciram_addr(addr));
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return Board::chr_read(mmc3.chr_addr(addr));
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}
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void chr_write(unsigned addr, uint8 data) {
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mmc3.irq_test(addr);
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if(addr & 0x2000) return ppu.ciram_write(mmc3.ciram_addr(addr), data);
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return Board::chr_write(mmc3.chr_addr(addr), data);
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}
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void power() {
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mmc3.power();
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}
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void reset() {
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mmc3.reset();
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}
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void serialize(serializer &s) {
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Board::serialize(s);
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mmc3.serialize(s);
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}
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NES_TxROM(Markup::Node &document) : Board(document), mmc3(*this) {
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revision = Revision::TLROM;
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}
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};
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