mirror of https://github.com/bsnes-emu/bsnes.git
45 lines
865 B
C++
45 lines
865 B
C++
#include <fc/fc.hpp>
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namespace Famicom {
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#include "memory.cpp"
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#include "timing.cpp"
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#include "serialization.cpp"
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CPU cpu;
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auto CPU::Enter() -> void {
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while(true) scheduler.synchronize(), cpu.main();
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}
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auto CPU::main() -> void {
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if(io.interruptPending) return interrupt();
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instruction();
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}
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auto CPU::step(uint clocks) -> void {
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Thread::step(clocks);
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synchronize(apu);
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synchronize(ppu);
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synchronize(cartridge);
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for(auto peripheral : peripherals) synchronize(*peripheral);
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}
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auto CPU::power(bool reset) -> void {
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MOS6502::BCD = 0;
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MOS6502::power();
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create(CPU::Enter, system.frequency());
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if(!reset) for(auto& data : ram) data = 0xff;
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ram[0x008] = 0xf7; //todo: what is this about?
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ram[0x009] = 0xef;
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ram[0x00a] = 0xdf;
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ram[0x00f] = 0xbf;
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r.pc.byte(0) = bus.read(0xfffc);
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r.pc.byte(1) = bus.read(0xfffd);
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io = {};
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}
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}
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