public List<string> Write(List<ParsedCommand> parsedCommands, string fileName)
{
StackAssemblyEmitter stackAssemblyEmitter = new StackAssemblyEmitter();
ArithmeticAssemblyEmitter arithmeticAssemblyEmitter = new ArithmeticAssemblyEmitter();
AssemblyInstructionOptimizer optimizer = new AssemblyInstructionOptimizer();
List<string> codedInstructions = new List<string>();
foreach (var pc in parsedCommands)
{
switch (pc.CommandType)
{
case CommandType.C_POP:
codedInstructions.AddRange(stackAssemblyEmitter.EmitPop(pc.Arg1, pc.Arg2, fileName));
break;
case CommandType.C_PUSH:
codedInstructions.AddRange(stackAssemblyEmitter.EmitPush(pc.Arg1, pc.Arg2, fileName));
break;
case CommandType.C_ARITHMETIC:
codedInstructions.AddRange(WriteArithmeticInstructions(pc.Command, arithmeticAssemblyEmitter));
break;
}
}
codedInstructions.AddRange(_bootstrapAssemblyHelper.EndLoop);
codedInstructions.AddRange(arithmeticAssemblyEmitter.EmitSubroutines());
codedInstructions = optimizer.Optimize(codedInstructions);
return codedInstructions;
}
private List<string> WriteArithmeticInstructions(string operation, ArithmeticAssemblyEmitter emitter)
{
List<string> instructions = new List<string>();
switch (operation)
{
case "add":
instructions.AddRange(emitter.EmitAdd());
break;
case "sub":
instructions.AddRange(emitter.EmitSub());
break;
case "neg":
instructions.AddRange(emitter.EmitNeg());
break;
case "eq":
instructions.AddRange(emitter.EmitEq());
break;
case "gt":
instructions.AddRange(emitter.EmitGt());
break;
case "lt":
instructions.AddRange(emitter.EmitLt());
break;
case "and":
instructions.AddRange(emitter.EmitAnd());
break;
case "or":
instructions.AddRange(emitter.EmitOr());
break;
case "not":
instructions.AddRange(emitter.EmitNot());
break;
}
return instructions;
}