mirror of https://github.com/bsnes-emu/bsnes.git
48 lines
789 B
C++
48 lines
789 B
C++
#include <processor/processor.hpp>
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#include "r6502.hpp"
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namespace Processor {
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#define L lastCycle();
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#define call(op) (this->*op)()
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#include "memory.cpp"
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#include "algorithms.cpp"
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#include "instructions.cpp"
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#include "switch.cpp"
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#include "disassembler.cpp"
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#include "serialization.cpp"
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auto R6502::mdr() const -> uint8 {
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return regs.mdr;
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}
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auto R6502::power() -> void {
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regs.a = 0x00;
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regs.x = 0x00;
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regs.y = 0x00;
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regs.s = 0xff;
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regs.p = 0x04;
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regs.mdr = 0x00;
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}
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auto R6502::interrupt() -> void {
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io();
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io();
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writeSP(regs.pc >> 8);
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writeSP(regs.pc >> 0);
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writeSP(regs.p | 0x20);
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uint16 vector = 0xfffe; //IRQ
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nmi(vector);
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abs.l = read(vector++);
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regs.p.i = 1;
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regs.p.d = 0;
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L abs.h = read(vector++);
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regs.pc = abs.w;
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}
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#undef L
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#undef call
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}
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