public override void Generate(AsmCode asmCode, SymTable symTable)
{
if (Subprogram is FunctionSymbol fs &&
(fs.ReturnType is RecordTypeSymbol || fs.ReturnType is ArrayTypeSymbol))
{
throw new NotImplementedException();
}
foreach (var prm in Childs.AsEnumerable().
Reverse().
Zip(
Subprogram.Parameters.AsEnumerable().Reverse(),
(node, symbol) => (node, symbol)))
{
if (prm.symbol.ParameterModifier == ParameterModifier.Value)
{
prm.node.Generate(asmCode, symTable);
}
else
{
((DesignatorNode)prm.node).GenerateLValue(asmCode, symTable);
}
}
if (asmCode.SubprogramStack.Count > 0 &&
asmCode.SubprogramStack.Peek() == Subprogram)
{
asmCode.Add(
AsmCmd.Cmd.Mov,
AsmReg.Reg.Eax,
new AsmOffset(-8, 4, AsmReg.Reg.Ebp));
asmCode.Add(AsmCmd.Cmd.Push, AsmReg.Reg.Eax);
}
else
{
asmCode.Add(AsmCmd.Cmd.Push, AsmReg.Reg.Ebp);
}
asmCode.Add(AsmCmd.Cmd.Call, Subprogram.Label.ToArgString());
if (Subprogram is FunctionSymbol functionSymbol)
{
if (functionSymbol.ReturnType == TypeSymbol.IntTypeSymbol ||
functionSymbol.ReturnType == TypeSymbol.CharTypeSymbol)
{
asmCode.Add(AsmCmd.Cmd.Push, AsmReg.Reg.Eax);
}
if (functionSymbol.ReturnType == TypeSymbol.RealTypeSymbol)
{
asmCode.Add(AsmCmd.Cmd.Sub, AsmReg.Reg.Esp, 8);
asmCode.Add(
AsmCmd.Cmd.Movsd,
new AsmOffset(0, 8, AsmReg.Reg.Esp),
AsmReg.Reg.Xmm0);
}
}
}