public override void Interpret(SourceCrawler sourceCrawler, BinaryWriter output, bool isLabelScan)
{
// Eat whitespace to right of mnemonic
sourceCrawler.EatWhitespace();
// Peek to make sure next character is a register delimiter, otherwise we return
if (sourceCrawler.Peek() == CompilerSettings.LabelDelimiter)
{
// Pass over the register delimiter
sourceCrawler.CurrentNdx++;
// Read the register
uint location = sourceCrawler.ReadLabelLocation();
// This instruction is 1 byte for instruction, and 1 word for location
sourceCrawler.AssemblyLength += (uint)(1 + CompilerSettings.WORD_LENGTH);
// If this is not a label scanning pass, write to output
if (!isLabelScan)
{
output.Write(ByteCodes[0]); // 0x0C
output.Write(location);
}
}
else if (sourceCrawler.Peek() == CompilerSettings.LiteralDelimiter)
{
// Pass over the register delimiter
sourceCrawler.CurrentNdx++;
// Read the register
uint location = sourceCrawler.ReadWordValue();
// This instruction is 1 byte for instruction, and 1 word for location
sourceCrawler.AssemblyLength += (uint)(1 + CompilerSettings.WORD_LENGTH);
// If this is not a label scanning pass, write to output
if (!isLabelScan)
{
output.Write(ByteCodes[0]); // 0x0C
output.Write(location);
}
}
else
if (sourceCrawler.Peek() == CompilerSettings.RegisterDelimiter)
{
// Pass over the register delimiter
sourceCrawler.CurrentNdx++;
// Read the register
RegisterAddress sourceRegister = sourceCrawler.ReadRegister();
// This instruction is 1 byte for instruction, and 1 word for location
sourceCrawler.AssemblyLength += (uint)(1 + 1);
// If this is not a label scanning pass, write to output
if (!isLabelScan)
{
output.Write(ByteCodes[1]); // 0x4C
output.Write((byte)sourceRegister);
}
}
}