public void CgExtInstruction(ParseTreeNode node, ref CgContext ctx)
{
var op = node.ChildNodes[0];
var arg = node.ChildNodes[1];
Instruction instr = new Instruction();
Code? tail;
instr.BasicOpcode = BasicOpcode.Ext;
instr.ExtOpcode = op.ChildNodes[0].Token.Text.ToExtOpcode();
instr.ArgA = CgArgument(arg, ref ctx, out tail, shortForm: false);
ctx.Write(new Code(instr));
if (tail.HasValue) ctx.Write(tail.Value);
}
public Code(Instruction instr)
{
this.Type = CodeType.Instruction;
this.Value = instr.Value;
this.Flags = CodeFlags.None;
}
public void CgBasicInstruction(ParseTreeNode node, ref CgContext ctx)
{
var op = node.ChildNodes[0].ChildNodes[0];
var argB = node.ChildNodes[1];
var argA = node.ChildNodes[2];
Instruction instr = new Instruction();
Code? tailA, tailB;
instr.BasicOpcode = op.Term.Name.ToBasicOpcode();
instr.ArgA = CgArgument(argA, ref ctx, out tailA, shortForm: false);
instr.ArgB = CgArgument(argB, ref ctx, out tailB, shortForm: true);
ctx.Write(new Code(instr));
if (tailA.HasValue) ctx.Write(tailA.Value);
if (tailB.HasValue) ctx.Write(tailB.Value);
}