v6502cpp/Cpu6502.cpp

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/*
* File: Cpu6502.cpp
* Author: Christopher
*
* Created on December 12, 2013, 10:14 PM
*/
#include "Cpu6502.h"
2013-12-13 14:55:19 +00:00
#include "addressbus.h"
#include "StateCalculator.h"
#include "Trace.h"
#include "Common.h"
#include "trans.h"
#define TRACEREG 1
//#define TRACESEG 1
void Cpu6502::setPins(const PinSettings& ps) {
SegmentSet rec;
for (auto p : ps) {
p.first->set(p.second);
rec.insert(p.first);
}
StateCalculator::recalc(rec);
}
void Cpu6502::clock(bool phase) {
setPins(PinSettings{std::make_pair(common.CLK0,phase)});
rw();
#ifdef TRACEREG
this->trace.dumpRegisters();
#endif
#ifdef TRACESEG
this->trace.dumpSegments();
#endif
}
void Cpu6502::rw() {
/* database read/write happens (only) during Clock Phase 2 */
if (common.CLK2OUT->on) {
readData();
writeData();
}
}
void Cpu6502::readData() {
if (this->common.RW->on) {
setPins(this->common.getDataPinSettings(this->addressBus.read(this->common.rAddr())));
}
}
void Cpu6502::writeData() {
if (!this->common.RW->on) {
this->addressBus.write(this->common.rAddr(), this->common.rData());
}
}