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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.
35 lines
792 B
C++
35 lines
792 B
C++
#include <fc/fc.hpp>
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namespace Famicom {
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Bus bus;
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//$0000-07ff = RAM (2KB)
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//$0800-1fff = RAM (mirror)
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//$2000-2007 = PPU
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//$2008-3fff = PPU (mirror)
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//$4000-4017 = APU + I/O
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//$4018-ffff = Cartridge
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auto Bus::read(uint16 addr) -> uint8 {
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uint8 data = cartridge.prg_read(addr);
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if(addr <= 0x1fff) data = cpu.ram_read(addr);
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else if(addr <= 0x3fff) data = ppu.read(addr);
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else if(addr <= 0x4017) data = cpu.read(addr);
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if(cheat.enable()) {
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if(auto result = cheat.find(addr, data)) return result();
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}
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return data;
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}
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auto Bus::write(uint16 addr, uint8 data) -> void {
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cartridge.prg_write(addr, data);
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if(addr <= 0x1fff) return cpu.ram_write(addr, data);
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if(addr <= 0x3fff) return ppu.write(addr, data);
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if(addr <= 0x4017) return cpu.write(addr, data);
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}
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}
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