public override void OnCodeGenVisit(AssemblyGenerator assembler)
{
foreach (FormalArgument arg in ArgumentList)
{
assembler.AllocMemory(Block.BlockId, arg);
}
assembler.EmitCode($"{this.symbol.AsmLabel}:");
assembler.EmitCode($"\tpushl %ebp");
assembler.EmitCode($"\tmovl %esp, %ebp");
assembler.EmitCode($"\tandl $-16, %esp");
int TotalBytes = assembler.GetParameterBytes(Block.BlockId);
if (TotalBytes != 0)
{
assembler.EmitCode($"\tsubl ${(TotalBytes >= 16 ? TotalBytes : 16)}, %esp");
}
if (Identifier.IdentifierName == "main")
{
assembler.EmitCode($"\tcall ___main");
foreach (Statement s in Block.Statements.Where(s => s.Type == SyntaxNodeType.ReturnStatement))
{
((ReturnStatement)s).ShouldPause = true;
}
}
Block.OnCodeGenVisit(assembler);
//assembler.EmitCode($"\tleave");
//assembler.EmitCode($"\tret");
}
public override void OnCodeGenVisit(AssemblyGenerator assembler)
{
assembler.AllocMemory(Identifier);
if (Init != null)
{
Init.OnCodeGenVisit(assembler);
string postfix = ((VariableSymbol)symbol).VariableType == VariableType.Char ? "b" : "l";
string target = ((VariableSymbol)symbol).VariableType == VariableType.Char ? "%al" : "%eax";
assembler.EmitCode($"\tmov{postfix} {target}, {assembler.GetVariableOffset(this.Identifier)}(%ebp)");
}
}
