mirror of
https://github.com/bsnes-emu/bsnes.git
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47d4bd4d81
byuu says: Changelog: - restructured the project and removed a whole bunch of old/dead directives from higan/GNUmakefile - huge amounts of work on hiro/cocoa (compiles but ~70% of the functionality is commented out) - fixed a masking error in my ARM CPU disassembler [Lioncash] - SFC: decided to change board cic=(411,413) back to board region=(ntsc,pal) ... the former was too obtuse If you rename Boolean (it's a problem with an include from ruby, not from hiro) and disable all the ruby drivers, you can compile an OS X binary, but obviously it's not going to do anything. It's a boring WIP, I just wanted to push out the project structure change now at the start of this WIP cycle.
50 lines
1.0 KiB
C++
50 lines
1.0 KiB
C++
//NES-AMROM
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//NES-ANROM
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//NES-AN1ROM
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//NES-AOROM
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struct NES_AxROM : Board {
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NES_AxROM(Markup::Node& document) : Board(document) {
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}
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auto prg_read(uint addr) -> uint8 {
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if(addr & 0x8000) return prgrom.read((prg_bank << 15) | (addr & 0x7fff));
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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 & 0x8000) {
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prg_bank = data & 0x0f;
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mirror_select = data & 0x10;
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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.ciram_read((mirror_select << 10) | (addr & 0x03ff));
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return Board::chr_read(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.ciram_write((mirror_select << 10) | (addr & 0x03ff), data);
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return Board::chr_write(addr, data);
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}
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auto power() -> void {
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}
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auto reset() -> void {
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prg_bank = 0x0f;
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mirror_select = 0;
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}
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auto serialize(serializer& s) -> void {
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Board::serialize(s);
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s.integer(prg_bank);
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s.integer(mirror_select);
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}
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uint4 prg_bank;
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bool mirror_select;
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};
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