private string TraceLog(int address)
{
StringBuilder line = new StringBuilder();
int op = Peek(address);
int opInfo = OpInfo.GetOps()[op];
int size = (opInfo >> 16) & 0xF;
int addressing = (opInfo >> 8) & 0xFF;
line.AppendFormat("{0} ", address.ToString("X4"));
if (size == 0)
{
line.Append(" ");
}
else if (size == 1)
{
line.AppendFormat("{0} ", Peek(address).ToString("X2"));
}
else if (size == 2)
{
line.AppendFormat("{0} {1} ", Peek(address).ToString("X2"), Peek(address + 1).ToString("X2"));
}
else if (size == 3)
{
line.AppendFormat("{0} {1} {2} ", Peek(address).ToString("X2"), Peek(address + 1).ToString("X2"), Peek(address + 2).ToString("X2"));
}
line.Append(OpInfo.GetOpNames()[opInfo & 0xFF].PadLeft(4).PadRight(5));
//Should be 20 long at this point, addressing should be 28 long
int val1;
int val2;
int val3;
int val4;
switch (addressing)
{
case OpInfo.AddrNone:
line.Append(" ");
break;
case OpInfo.AddrAccumulator:
line.Append("A ");
break;
case OpInfo.AddrImmediate:
line.AppendFormat("#${0} ", Peek(address + 1).ToString("X2"));
break;
case OpInfo.AddrZeroPage:
line.AppendFormat("${0} = {1} ", Peek(address + 1).ToString("X2"), Peek(Peek(address + 1)).ToString("X2"));
break;
case OpInfo.AddrZeroPageX:
line.AppendFormat("${0},X @ {1} = {2} ", Peek(address + 1).ToString("X2"), ((Peek(address + 1) + nes.RegX) & 0xFF).ToString("X2"), Peek((Peek(address + 1) + nes.RegX) & 0xFF).ToString("X2"));
break;
case OpInfo.AddrZeroPageY:
line.AppendFormat("${0},Y @ {1} = {2} ", Peek(address + 1).ToString("X2"), ((Peek(address + 1) + nes.RegY) & 0xFF).ToString("X2"), Peek((Peek(address + 1) + nes.RegY) & 0xFF).ToString("X2"));
break;
case OpInfo.AddrAbsolute:
if (op == 0x4C || op == 0x20)
{
line.AppendFormat("${0} ", PeekWord(address + 1).ToString("X4"));
}
else
{
line.AppendFormat("${0} = {1} ", PeekWord(address + 1).ToString("X4"), Peek(PeekWord(address + 1)).ToString("X2"));
}
break;
case OpInfo.AddrAbsoluteX:
line.AppendFormat("${0},X @ {1} = {2} ", PeekWord(address + 1).ToString("X4"), ((PeekWord(address + 1) + nes.RegX) & 0xFFFF).ToString("X4"), Peek((PeekWord(address + 1) + nes.RegX) & 0xFFFF).ToString("X2"));
break;
case OpInfo.AddrAbsoluteY:
line.AppendFormat("${0},Y @ {1} = {2} ", PeekWord(address + 1).ToString("X4"), ((PeekWord(address + 1) + nes.RegY) & 0xFFFF).ToString("X4"), Peek((PeekWord(address + 1) + nes.RegY) & 0xFFFF).ToString("X2"));
break;
case OpInfo.AddrIndirectAbs:
line.AppendFormat("(${0}) = {1} ", PeekWord(address + 1).ToString("X4"), PeekWordWrap(PeekWord(address + 1)).ToString("X4"));
break;
case OpInfo.AddrRelative:
int addr = Peek(address + 1);
if (addr < 0x80)
{
addr += (address + size);
}
else
{
addr += (address + size) - 256;
}
line.AppendFormat("${0} ", addr.ToString("X4"));
break;
case OpInfo.AddrIndirectX:
addr = val1 = Peek(address + 1);
addr += nes.RegX;
addr &= 0xFF;
val2 = addr;
addr = val3 = Peek(addr) + (Peek((addr + 1) & 0xFF) << 8);
addr = val4 = Peek(addr);
line.AppendFormat("(${0},X) @ {1} = {2} = {3} ", val1.ToString("X2"), val2.ToString("X2"), val3.ToString("X4"), val4.ToString("X2"));
break;
case OpInfo.AddrIndirectY:
addr = val1 = Peek(address + 1);
addr = val2 = Peek(addr) + (Peek((addr + 1) & 0xFF) << 8);
addr += nes.RegY;
addr &= 0xFFFF;
val3 = addr;
addr = val4 = Peek(addr & 0xFFFF);
line.AppendFormat("(${0}),Y = {1} @ {2} = {3} ", val1.ToString("X2"), val2.ToString("X4"), val3.ToString("X4"), val4.ToString("X2"));
break;
}
line.AppendFormat("A:{0} X:{1} Y:{2} P:", nes.RegA.ToString("X2"), nes.RegX.ToString("X2"), nes.RegY.ToString("X2"));
if (nes.FlagCarry != 0)
{
line.Append("C");
}
else
{
line.Append("c");
}
if (nes.FlagZero == 0)
{
line.Append("Z");
}
else
{
line.Append("z");
}
if (nes.FlagIRQ != 0)
{
line.Append("I");
}
else
{
line.Append("i");
}
if (nes.FlagDecimal != 0)
{
line.Append("D");
}
else
{
line.Append("d");
}
if (0 != 0)
{
line.Append("B");
}
else
{
line.Append("b");
}
if (0 != 0)
{
line.Append("-");
}
else
{
line.Append("_");
}
if (nes.FlagOverflow != 0)
{
line.Append("V");
}
else
{
line.Append("v");
}
if ((nes.FlagSign >> 7) != 0)
{
line.Append("N");
}
else
{
line.Append("n");
}
line.AppendFormat(" S:{0} CYC:{1} SL:{2}", nes.RegS.ToString("X2"), (nes.PPU.scanlineCycle).ToString().PadLeft(3), nes.PPU.scanline.ToString().PadLeft(3));
return(line.ToString());
}
public string LogOp(int address)
{
StringBuilder line = new StringBuilder();
int op = Peek(address);
int opInfo = OpInfo.GetOps()[op];
int size = (opInfo >> 16) & 0xF;
int addressing = (opInfo >> 8) & 0xFF;
line.AppendFormat("{0} ", address.ToString("X4"));
if (size == 0)
{
line.Append(" ");
}
else if (size == 1)
{
line.AppendFormat("{0} ", Peek(address).ToString("X2"));
}
else if (size == 2)
{
line.AppendFormat("{0} {1} ", Peek(address).ToString("X2"), Peek(address + 1).ToString("X2"));
}
else if (size == 3)
{
line.AppendFormat("{0} {1} {2} ", Peek(address).ToString("X2"), Peek(address + 1).ToString("X2"), Peek(address + 2).ToString("X2"));
}
line.Append(OpInfo.GetOpNames()[opInfo & 0xFF].PadLeft(4).PadRight(5));
//Should be 20 long at this point, addressing should be 28 long
int val1;
int val2;
int val3;
int val4;
switch (addressing)
{
case OpInfo.AddrNone:
line.Append(" ");
break;
case OpInfo.AddrAccumulator:
line.Append("A ");
break;
case OpInfo.AddrImmediate:
line.AppendFormat("#${0} ", Peek(address + 1).ToString("X2"));
break;
case OpInfo.AddrZeroPage:
line.AppendFormat("${0} = {1} ", Peek(address + 1).ToString("X2"), Peek(Peek(address + 1)).ToString("X2"));
break;
case OpInfo.AddrZeroPageX:
line.AppendFormat("${0},X @ {1} = {2} ", Peek(address + 1).ToString("X2"), ((Peek(address + 1) + nes.RegX) & 0xFF).ToString("X2"), Peek((Peek(address + 1) + nes.RegX) & 0xFF).ToString("X2"));
break;
case OpInfo.AddrZeroPageY:
line.AppendFormat("${0},Y @ {1} = {2} ", Peek(address + 1).ToString("X2"), ((Peek(address + 1) + nes.RegY) & 0xFF).ToString("X2"), Peek((Peek(address + 1) + nes.RegY) & 0xFF).ToString("X2"));
break;
case OpInfo.AddrAbsolute:
if (op == 0x4C || op == 0x20)
{
line.AppendFormat("${0} ", PeekWord(address + 1).ToString("X4"));
}
else
{
line.AppendFormat("${0} = {1} ", PeekWord(address + 1).ToString("X4"), Peek(PeekWord(address + 1)).ToString("X2"));
}
break;
case OpInfo.AddrAbsoluteX:
line.AppendFormat("${0},X @ {1} = {2} ", PeekWord(address + 1).ToString("X4"), ((PeekWord(address + 1) + nes.RegX) & 0xFFFF).ToString("X4"), Peek((PeekWord(address + 1) + nes.RegX) & 0xFFFF).ToString("X2"));
break;
case OpInfo.AddrAbsoluteY:
line.AppendFormat("${0},Y @ {1} = {2} ", PeekWord(address + 1).ToString("X4"), ((PeekWord(address + 1) + nes.RegY) & 0xFFFF).ToString("X4"), Peek((PeekWord(address + 1) + nes.RegY) & 0xFFFF).ToString("X2"));
break;
case OpInfo.AddrIndirectAbs:
line.AppendFormat("(${0}) = {1} ", PeekWord(address + 1).ToString("X4"), PeekWordWrap(PeekWord(address + 1)).ToString("X4"));
break;
case OpInfo.AddrRelative:
int addr = Peek(address + 1);
if (addr < 0x80)
{
addr += (address + size);
}
else
{
addr += (address + size) - 256;
}
line.AppendFormat("${0} ", addr.ToString("X4"));
break;
case OpInfo.AddrIndirectX:
addr = val1 = Peek(address + 1);
addr += nes.RegX;
addr &= 0xFF;
val2 = addr;
addr = val3 = Peek(addr) + (Peek((addr + 1) & 0xFF) << 8);
addr = val4 = Peek(addr);
line.AppendFormat("(${0},X) @ {1} = {2} = {3} ", val1.ToString("X2"), val2.ToString("X2"), val3.ToString("X4"), val4.ToString("X2"));
break;
case OpInfo.AddrIndirectY:
addr = val1 = Peek(address + 1);
addr = val2 = Peek(addr) + (Peek((addr + 1) & 0xFF) << 8);
addr += nes.RegY;
addr &= 0xFFFF;
val3 = addr;
addr = val4 = Peek(addr & 0xFFFF);
line.AppendFormat("(${0}),Y = {1} @ {2} = {3} ", val1.ToString("X2"), val2.ToString("X4"), val3.ToString("X4"), val4.ToString("X2"));
break;
}
return(line.ToString().Trim());
}