public void AddOperands(OperandCollection operands, ReadOnlySpan <byte> bytes)
{
if (operands == null)
{
throw new ArgumentNullException(nameof(operands));
}
var operandType1 = OperandType.Variable;
operands.Add(operandType1, bytes[0]);
var operandType2 = OperandType.Small;
operands.Add(operandType2, bytes[1]);
}
public Instruction(Machine machine)
{
if (machine == null)
{
throw new ArgumentNullException(nameof(machine));
}
this.machine = machine;
log = machine.Logger.ForContext <Instruction>();
Operands = new OperandCollection(machine);
Operation = EmptyOperation;
StoreResult = int.MinValue;
Branch = BranchDescriptor.NullBranch;
Text = "";
Size = 0;
}
public void AddOperands(OperandCollection operands, ReadOnlySpan <byte> bytes)
{
if (operands == null)
{
throw new ArgumentNullException(nameof(operands));
}
var type = Bits.FiveAndFour(bytes[0]);
if (type == OperandType.Small || type == OperandType.Variable)
{
operands.Add(type, bytes[1]);
}
else if (type == OperandType.Large)
{
operands.Add(type, Bits.MakeWord(bytes.Slice(1, 2)));
}
}
public void AddOperands(OperandCollection operands, ReadOnlySpan <byte> bytes)
{
if (operands == null)
{
throw new ArgumentNullException(nameof(operands));
}
var byteOffset = 1;
var operandTypes = Bits.BreakIntoTwos(bytes[0]);
foreach (var type in operandTypes)
{
switch (type)
{
case OperandType.Small:
operands.Add(type, bytes[byteOffset]);
byteOffset += 1;
break;
case OperandType.Variable:
operands.Add(type, bytes[byteOffset]);
byteOffset += 1;
break;
case OperandType.Large:
operands.Add(type, Bits.MakeWord(bytes.Slice(byteOffset, 2)));
byteOffset += 2;
break;
case OperandType.Ommitted:
break;
default:
throw new InvalidOperationException($"Unknown operand type {type:X}");
}
}
}
