mirror of https://github.com/bsnes-emu/bsnes.git
50 lines
875 B
C++
50 lines
875 B
C++
#include <pce/pce.hpp>
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namespace PCEngine {
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CPU cpu;
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#include "io.cpp"
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#include "irq.cpp"
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#include "timer.cpp"
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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 1
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static uint counter = 0;
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if(counter++ < 40) {
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print(disassemble(r.pc), "\n");
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}
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#endif
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if(irq.pending()) interrupt(irq.vector());
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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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timer.step(clocks);
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synchronize(vdc);
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synchronize(psg);
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for(auto peripheral : peripherals) synchronize(*peripheral);
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}
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auto CPU::power() -> void {
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HuC6280::power();
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create(CPU::Enter, system.colorburst() * 2.0);
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r.pc.byte(0) = read(0x1ffe);
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r.pc.byte(1) = read(0x1fff);
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memory::fill(&irq, sizeof(IRQ));
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memory::fill(&timer, sizeof(Timer));
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}
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auto CPU::lastCycle() -> void {
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irq.poll();
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}
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}
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