/// <summary>
/// Disassembles an instruction.
/// </summary>
/// <param name="memory">The memory.</param>
/// <returns>A string representing the instruction at <paramref name="memory"/>.R.PC</returns>
private static string DisassembleInstructionInternal(GbMemory memory)
{
byte b = memory.GetMappedMemory(memory.R.Pc);
if (b >= 0x40 && b < 0xC0)
{
if (b < 0x80)
{
if (b == 0x76)
{
return("HALT");
}
int dest = ((b >> 3) & 7);
int src = (b & 7);
return("LD " + GetR8(dest) + "," + GetR8(src));
}
return(DisassembleInstructionArith(b));
}
if (b == 0xCB)
{
return(DisassembleInstructionCb(memory.GetMappedMemory((ushort)(memory.R.Pc + 1))));
}
return(nmOpStrings[b]);
}
/// <summary>
/// Disassembles an instruction.
/// </summary>
/// <param name="memory">The memory.</param>
/// <returns>A string representing the instruction at <paramref name="memory"/>.R.PC</returns>
public static string DisassembleInstruction(GbMemory memory) => "0x" +
memory.GetMappedMemory(memory.R.Pc).ToString("X2") + " (" + DisassembleInstructionInternal(memory) + ")";