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Debug.cpp
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Debug.cpp
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#include "Debug.h"
#include "Bus.h"
#include "Nes6502.h"
#include <iostream>
#include <iomanip>
Debug::Debug(Bus& bus) : bus(bus)
{
}
Debug::~Debug()
{
}
char* opLookup[];
void Debug::logOpDebug(Argument arg)
{
opDebugStream << toHex(bus.cpuState().PC - instructionSize[arg.addrMode], 4) << " ";
std::stringstream rawOpCode;
for (int i = 0; i < instructionSize[arg.addrMode]; i++)
{
rawOpCode << toHex((int)arg.rawInstr[i], 2) << " ";
}
opDebugStream << std::setw(10) << std::left << rawOpCode.str();
opDebugStream << std::right;
std::stringstream addrStr;
addrStr << opLookup[arg.rawInstr[0]] << " ";
switch (arg.addrMode)
{
case IMP: // Implied and NOP have no args
case NADR:
break;
case ACC:
addrStr << "A";
break;
case REL:
//addrStr << "$" << toHex(arg.rawInstr[1], 2) << ", PC";
addrStr << "$" << toHex(arg.address, 4);
break;
case IMM:
addrStr << "#$" << toHex(arg.value, 2);
break;
case ZP:
addrStr << "$" << toHex(arg.rawInstr[1], 2);
break;
case ZPX:
addrStr << "$" << toHex(arg.rawInstr[1], 2) << ",X";
break;
case ZPY:
addrStr << "$" << toHex(arg.rawInstr[1], 2) << ",Y";
break;
case ABS:
addrStr << "$" << toHex(arg.rawInstr[2], 2) << toHex(arg.rawInstr[1], 2);
break;
case ABSX:
addrStr << "$" << toHex(arg.rawInstr[2], 2) << toHex(arg.rawInstr[1], 2) << ",X";
break;
case ABSY:
addrStr << "$" << toHex(arg.rawInstr[2], 2) << toHex(arg.rawInstr[1], 2) << ",Y";
break;
case IND:
addrStr << "$(" << toHex(arg.rawInstr[2], 2) << toHex(arg.rawInstr[1], 2) << ")";
break;
case INDX:
addrStr << "$(" << toHex(arg.rawInstr[1], 2) << ",X)";
break;
case INDY:
addrStr << "$(" << toHex(arg.rawInstr[1], 2) << "),Y";
break;
}
opDebugStream << std::setw(31) << std::left << addrStr.str();
uint32_t size = (instructionSize[arg.addrMode] == 1) ? 2 : instructionSize[arg.addrMode];
opDebugStream << " A:" << toHex(bus.cpuState().A, 2)
<< " X:" << toHex(bus.cpuState().X, 2)
<< " Y:" << toHex(bus.cpuState().Y, 2)
<< " P:" << toHex(bus.cpuState().P.toByte(), 2)
<< " SP:" << toHex(bus.cpuState().SP, 2)
<< " CPUC:" << bus.cpuCycleCount() - size;
}
void Debug::logPPUDebug(const char* str)
{
memoryDebugStream << std::setw(6) << ""
<< std::setw(1) << std::string(str) << std::endl;
}
void Debug::logMemoryDebug(const char* op, uint8_t value, uint16_t index)
{
memoryDebugStream << std::setw(6) << ""
<< std::setw(10) << std::left << std::string(op)
<< "$" << toHex(index, 4) << " = " << toHex(value, 2)
<< std::endl;
}
void Debug::logMemoryRegDebug(const char* op, const char* reg, uint8_t value)
{
memoryDebugStream << std::setw(6) << ""
<< std::setw(10) << std::left << std::string(op)
<< std::string(reg) << " = " << toHex(value, 2)
<< std::endl;
}
void Debug::flushAll()
{
std::string debug;
debug = opDebug();
if (!debug.empty())
{
std::cout << debug << std::endl;
}
debug = memoryDebug();
if (!debug.empty())
{
std::cout << debug;
}
}
std::string Debug::opDebug()
{
std::string out = opDebugStream.str();
opDebugStream.str("");
return out;
}
std::string Debug::memoryDebug()
{
std::string out = memoryDebugStream.str();
memoryDebugStream.str("");
return out;
}
std::string Debug::toHex(int val, int width)
{
std::stringstream hex;
hex << std::setw(width) << std::setfill('0') << std::uppercase << std::hex << val;
return hex.str();
}
char* opLookup[] = { // Instruction name lookup
// 0 1 2 3 4 5 6 7 8 9 A B C D E F
/*0*/ "BRK", "ORA", "NOP", "NOP", "NOP", "ORA", "ASL", "NOP", "PHP", "ORA", "ASL", "NOP", "NOP", "ORA", "ASL", "NOP",
/*1*/ "BPL", "ORA", "NOP", "NOP", "NOP", "ORA", "ASL", "NOP", "CLC", "ORA", "NOP", "NOP", "NOP", "ORA", "ASL", "NOP",
/*2*/ "JSR", "AND", "NOP", "NOP", "BIT", "AND", "ROL", "NOP", "PLP", "AND", "ROL", "NOP", "BIT", "AND", "ROL", "NOP",
/*3*/ "BMI", "AND", "NOP", "NOP", "NOP", "AND", "ROL", "NOP", "SEC", "AND", "NOP", "NOP", "NOP", "AND", "ROL", "NOP",
/*4*/ "RTI", "EOR", "NOP", "NOP", "NOP", "EOR", "LSR", "NOP", "PHA", "EOR", "LSR", "NOP", "JMP", "EOR", "LSR", "NOP",
/*5*/ "BVC", "EOR", "NOP", "NOP", "NOP", "EOR", "LSR", "NOP", "CLI", "EOR", "NOP", "NOP", "NOP", "EOR", "LSR", "NOP",
/*6*/ "RTS", "ADC", "NOP", "NOP", "NOP", "ADC", "ROR", "NOP", "PLA", "ADC", "ROR", "NOP", "JMP", "ADC", "ROR", "NOP",
/*7*/ "BVS", "ADC", "NOP", "NOP", "NOP", "ADC", "ROR", "NOP", "SEI", "ADC", "NOP", "NOP", "NOP", "ADC", "ROR", "NOP",
/*8*/ "NOP", "STA", "NOP", "NOP", "STY", "STA", "STX", "NOP", "DEY", "NOP", "TXA", "NOP", "STY", "STA", "STX", "NOP",
/*9*/ "BCC", "STA", "NOP", "NOP", "STY", "STA", "STX", "NOP", "TYA", "STA", "TXS", "NOP", "NOP", "STA", "NOP", "NOP",
/*A*/ "LDY", "LDA", "LDX", "NOP", "LDY", "LDA", "LDX", "NOP", "TAY", "LDA", "TAX", "NOP", "LDY", "LDA", "LDX", "NOP",
/*B*/ "BCS", "LDA", "NOP", "NOP", "LDY", "LDA", "LDX", "NOP", "CLV", "LDA", "TSX", "NOP", "LDY", "LDA", "LDX", "NOP",
/*C*/ "CPY", "CMP", "NOP", "NOP", "CPY", "CMP", "DEC", "NOP", "INY", "CMP", "DEX", "NOP", "CPY", "CMP", "DEC", "NOP",
/*D*/ "BNE", "CMP", "NOP", "NOP", "NOP", "CMP", "DEC", "NOP", "CLD", "CMP", "NOP", "NOP", "NOP", "CMP", "DEC", "NOP",
/*E*/ "CPX", "SBC", "NOP", "NOP", "CPX", "SBC", "INC", "NOP", "INX", "SBC", "NOP", "NOP", "CPX", "SBC", "INC", "NOP",
/*F*/ "BEQ", "SBC", "NOP", "NOP", "NOP", "SBC", "INC", "NOP", "SED", "SBC", "NOP", "NOP", "NOP", "SBC", "INC", "NOP",
};