public void Visit(LessThanEquals m)
{
//zc
//00 = a > b
//01 = a < b
//10 = a == b
//push a 1 if zc != 0
sw.WriteLine("\tnop ;a <= b");
sw.WriteLine("\tpop bx");
sw.WriteLine("\tpop ax");
sw.WriteLine("\tcmp ax,bx");
string yes = GetNextLabel();
string push = GetNextLabel();
sw.WriteLine("\tjbe " + yes.Substring(0, yes.Length - 1) + " ; C or Z is set - load a #1");
sw.WriteLine("\tmov ax,0");
sw.WriteLine("\tjmp " + push.Substring(0, push.Length - 1));
sw.WriteLine(yes);
sw.WriteLine("\tmov ax,1");
sw.WriteLine(push);
sw.WriteLine("\tpush ax");
}
public void Visit(LessThanEquals m)
{
//zc
//00 = a > b
//01 = a < b
//10 = a == b
//push a 1 if zc != 0
sw.WriteLine("\t;a >= b");
sw.WriteLine("\tpuls a");
sw.WriteLine("\tsta temp");
sw.WriteLine("\tpuls a");
sw.WriteLine("\tcmpa temp");
string one = GetNextLabel();
string push = GetNextLabel();
sw.WriteLine("\tbls " + one + " ; C or Z is set - load a #1");
sw.WriteLine("\tlda #0");
sw.WriteLine("\tbra " + push);
sw.WriteLine(one);
sw.WriteLine("\tlda #1");
sw.WriteLine(push);
sw.WriteLine("\tpshs a");
}
