public static string PrettyPrint(this Instruction i, CompiledZMachine machine)
{
var builder = new StringBuilder();
builder.AppendFormat("{0:x4}: {1}", i.Address, i.Opcode.Name);
if (i.OperandCount > 0)
{
builder.Append(" ");
if (i.Opcode.IsCall)
{
if (i.Operands[0].Kind != OperandKind.Variable)
{
builder.Append(machine.UnpackRoutineAddress(i.Operands[0].Value).ToString("x4"));
}
else
{
builder.Append(Variable.FromByte((byte)i.Operands[0].Value));
}
if (i.OperandCount > 1)
{
builder.Append(" (");
builder.Append(string.Join(", ", i.Operands.Skip(1).Select(op => op.PrettyPrint())));
builder.Append(")");
}
}
else if (i.Opcode.IsJump)
{
var jumpOffset = (short)i.Operands[0].Value;
var jumpAddress = i.Address + i.Length + jumpOffset - 2;
builder.Append(jumpAddress.ToString("x4"));
}
else if (i.Opcode.IsFirstOpByRef)
{
builder.Append(i.Operands[0].PrettyPrintByRef());
if (i.OperandCount > 1)
{
builder.Append(", ");
builder.Append(string.Join(", ", i.Operands.Skip(1).Select(op => op.PrettyPrint())));
}
}
else
{
builder.Append(string.Join(", ", i.Operands.Select(op => op.PrettyPrint())));
}
}
if (i.HasZText)
{
var ztext = machine.ConvertZText(i.ZText);
ztext = ztext.Replace("\n", @"\n").Replace(' ', '\u00b7').Replace("\t", @"\t");
builder.Append(" ");
builder.Append(ztext);
}
if (i.HasStoreVariable)
{
builder.Append(" -> ");
builder.Append(i.StoreVariable.PrettyPrint(@out: true));
}
if (i.HasBranch)
{
builder.Append(" [");
builder.Append(i.Branch.Condition.ToString().ToUpper());
builder.Append("] ");
switch (i.Branch.Kind)
{
case BranchKind.Address:
var jumpAddress = i.Address + i.Length + i.Branch.Offset - 2;
builder.Append(jumpAddress.ToString("x4"));
break;
case BranchKind.RFalse:
builder.Append("rfalse");
break;
case BranchKind.RTrue:
builder.Append("rtrue");
break;
}
}
return(builder.ToString());
}
public static ZCompilerResult Compile(ZRoutine routine, CompiledZMachine machine)
{
return(new ZCompiler(routine, machine).Compile());
}
public ZRoutineCall(ZRoutine routine, CompiledZMachine machine)
{
this.Machine = machine;
this.Routine = routine;
}
private ZCompiler(ZRoutine routine, CompiledZMachine machine, bool debugging = false)
{
this.routine = routine;
this.machine = machine;
this.debugging = debugging;
}
