64 lines
1.1 KiB
C++
64 lines
1.1 KiB
C++
/*
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* File: Cpu6502.cpp
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* Author: Christopher
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*
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* Created on December 12, 2013, 10:14 PM
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*/
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#include "Cpu6502.h"
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#include "addressbus.h"
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#include "StateCalculator.h"
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#include "Trace.h"
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#include "Common.h"
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#include "trans.h"
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#define TRACEREG 1
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//#define TRACESEG 1
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void Cpu6502::setPins(const PinSettings& ps) {
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SegmentSet rec;
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for (auto p : ps) {
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p.first->set(p.second);
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rec.insert(p.first);
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}
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StateCalculator::recalc(rec);
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}
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void Cpu6502::clock(bool phase) {
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setPins(PinSettings{std::make_pair(common.CLK0,phase)});
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rw();
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#ifdef TRACEREG
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this->trace.dumpRegisters();
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#endif
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#ifdef TRACESEG
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this->trace.dumpSegments();
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#endif
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}
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void Cpu6502::rw() {
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/* database read/write happens (only) during Clock Phase 2 */
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if (common.CLK2OUT->on) {
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readData();
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writeData();
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}
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}
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void Cpu6502::readData() {
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if (this->common.RW->on) {
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setPins(this->common.getDataPinSettings(this->addressBus.read(this->common.rAddr())));
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}
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}
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void Cpu6502::writeData() {
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if (!this->common.RW->on) {
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this->addressBus.write(this->common.rAddr(), this->common.rData());
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}
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}
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