internal bool translate(DirectTranslation translation)
{
Symbol main = globalTable.LocalSearch("main");
if (main is null)
{
Console.Error.WriteLine("No main function");
return(false);
}
foreach (var item in globalTable.LocalScope)
{
if (!item.Value.IsFunction) // global variable
{
}
}
main.FunctionDefinition.Generate(translation);
globalTable.LocalScope.Remove("main");
foreach (var item in globalTable.LocalScope)
{
if (item.Value.IsFunction)
{
item.Value.FunctionDefinition.Generate(translation);
}
}
return(true);
}
internal override string Generate(DirectTranslation translation)
{
string tempVar = ".S" + VariableCounter;
LiteralHelper(translation, tempVar, i);
return(tempVar);
}
internal override string Generate(DirectTranslation translation)
{
translation.AddFunctionLabel(functionName, this);
translation.AddPrologue(this);
statementList.Generate(translation);
return(null);
}
internal override string Generate(DirectTranslation translation)
{
string tempVar = ".S" + VariableCounter;
int i = BitConverter.SingleToInt32Bits(f);
LiteralHelper(translation, tempVar, i);
return(tempVar);
}
internal override string Generate(DirectTranslation trans)
{
foreach (var item in list)
{
item.Generate(trans);
}
return(null);
}
protected static void LiteralHelper(DirectTranslation translation, string tempScalar, int i)
{
ushort high = (ushort)(i >> 16);
ushort low = (ushort)i;
if (i == 0)
{
translation.AddAssembly("s_setzero", tempScalar);
}
else
{
translation.AddAssembly("s_write_low", tempScalar, (low).ToString());
translation.AddAssembly("s_write_high", tempScalar, (high).ToString());
}
}
internal static string ItoFHelper(DirectTranslation translation, string temp)
{
string tempF;
if (temp[2] == '.') // temp is not temporary
{
tempF = $".{temp[1]}{VariableCounter}";
}
else
{
tempF = temp;
}
translation.AddAssembly("s_itof", tempF, temp);
return(tempF);
}
internal override string Generate(DirectTranslation translation)
{
switch (type)
{
case Type.BREAK:
translation.AddBranch("jmp", CurrentLoopEndLabel);
break;
case Type.CONTINUE:
translation.AddBranch("jmp", CurrentLoopBeginLabel);
break;
default:
break;
}
return(null);
}
internal override string Generate(DirectTranslation translation)
{
string tempScalar = ".S" + VariableCounter;
string tempVar = ".V" + VariableCounter;
int i;
i = BitConverter.SingleToInt32Bits(vector.X);
LiteralHelper(translation, tempScalar, i);
translation.AddAssembly("v_get_from_s_d", tempVar, tempScalar, "0");
i = BitConverter.SingleToInt32Bits(vector.Y);
LiteralHelper(translation, tempScalar, i);
translation.AddAssembly("v_get_from_s", tempVar, tempScalar, "1");
i = BitConverter.SingleToInt32Bits(vector.Z);
LiteralHelper(translation, tempScalar, i);
translation.AddAssembly("v_get_from_s", tempVar, tempScalar, "2");
i = BitConverter.SingleToInt32Bits(vector.W);
LiteralHelper(translation, tempScalar, i);
translation.AddAssembly("v_get_from_s", tempVar, tempScalar, "3");
return(tempVar);
}
internal override string Generate(DirectTranslation translation)
{
if (arraySize <= 0)
{
if (initializer is not null)
{
string tempVar = initializer.Generate(translation);
if (type == Type.VECTOR)
{
translation.AddAssembly("v_mov", scopedIdentifier, tempVar);
}
else
{
translation.AddAssembly("s_mov", scopedIdentifier, tempVar);
}
}
}
else // array
{
translation.AddAssembly("ii_addi", scopedIdentifier, "RS28", offset.ToString());
}
return(null);
}
internal override string Generate(DirectTranslation translation)
{
string id = LinkedSymbol.Identifier;
if (id[0] == '.')
{
return(id); // scoped identifier
}
else
{
string tempScalar = $".S{VariableCounter}";
if (id[1] == 'V')
{
string tempVar = $".V{VariableCounter}";
string tempScalar2 = $".S{VariableCounter}";
translation.AddAssembly("s_write_low", tempScalar, "0");
translation.AddAssembly("s_write_high", tempScalar, "8192");
translation.AddAssembly("s_load_4byte", tempScalar2, tempScalar, LinkedSymbol.Offset.ToString());
translation.AddAssembly("v_get_from_s_d", tempVar, tempScalar2, "0");
translation.AddAssembly("s_load_4byte", tempScalar2, tempScalar, (LinkedSymbol.Offset + 4).ToString());
translation.AddAssembly("v_get_from_s", tempVar, tempScalar2, "1");
translation.AddAssembly("s_load_4byte", tempScalar2, tempScalar, (LinkedSymbol.Offset + 8).ToString());
translation.AddAssembly("v_get_from_s", tempVar, tempScalar2, "2");
translation.AddAssembly("s_load_4byte", tempScalar2, tempScalar, (LinkedSymbol.Offset + 12).ToString());
translation.AddAssembly("v_get_from_s", tempVar, tempScalar2, "3");
// translation.AddAssembly("v_load_16byte", tempVar, tempScalar, LinkedSymbol.Offset.ToString());
return(tempVar);
}
else
{
translation.AddAssembly("s_write_low", tempScalar, "0");
translation.AddAssembly("s_write_high", tempScalar, "8192");
translation.AddAssembly("s_load_4byte", tempScalar, tempScalar, LinkedSymbol.Offset.ToString());
}
return(tempScalar);
}
}
internal override string Generate(DirectTranslation translation)
{
string begin = "L" + LabelCounter;
string end = "L" + LabelCounter;
string realBegin = "L" + LabelCounter;
NewLoop(begin, end);
if (initialStatement is not null)
{
initialStatement.Generate(translation);
}
conditionHelper(translation, end, realBegin, true);
translation.AddLabel(realBegin);
loopBody.Generate(translation);
translation.AddLabel(begin);
if (iterateStatement is not null)
{
iterateStatement.Generate(translation);
}
conditionHelper(translation, end, realBegin, false);
translation.AddLabel(end);
EndLoop();
return(null);
}
internal override string Generate(DirectTranslation translation)
{
string tempVar = ".V" + VariableCounter;
string tempScalar;
for (int i = 0; i < 4; i++)
{
tempScalar = expressions[i].Generate(translation);
if (types[i] == Type.INT)
{
tempScalar = BinaryExpression.ItoFHelper(translation, tempScalar);
}
// translation.AddAssembly("s_itof", tempScalar, tempScalar);
if (i == 0)
{
translation.AddAssembly("v_get_from_s_d", tempVar, tempScalar, i.ToString());
}
else
{
translation.AddAssembly("v_get_from_s", tempVar, tempScalar, i.ToString());
}
}
return(tempVar);
}
internal override string Generate(DirectTranslation translation)
{
if (function.functionName == "main")
{
translation.AddAssembly("Fin");
return(null);
}
if (expression is not null)
{
string tempVar = expression.Generate(translation);
if (function.returnType == Type.VECTOR)
{
translation.AddAssembly("v_mov", "RV1", tempVar);
}
else
{
translation.AddAssembly("s_mov", "RS1", tempVar);
}
}
translation.AddEpilogue(function);
translation.AddReturn("ret", function.returnType);
// translation.List[^1].returnType = function.returnType;
return(null);
}
internal override string Generate(DirectTranslation list)
{
return(statementList.Generate(list));
}
internal override string Generate(DirectTranslation list)
{
return(declarationList.Generate(list));
}
internal override string Generate(DirectTranslation translation)
{
string trueLabel = "L" + LabelCounter;
string skipLabel = "L" + LabelCounter;
if (condition is BinaryExpression)
{
BinaryExpression be = condition as BinaryExpression;
if (be.type < BinaryExpression.Type.EQ || be.type > BinaryExpression.Type.LE)
{
string cond = condition.Generate(translation);
translation.AddAssembly("cmp_i", cond, "RS0");
translation.AddBranch("bne", trueLabel);
}
else
{
string temp1 = be.exp1.Generate(translation);
string temp2 = be.exp2.Generate(translation);
if (be.type1 == Type.INT && be.type2 == Type.INT)
{
translation.AddAssembly("cmp_i", temp1, temp2);
}
else
{
if (be.type1 == Type.INT)
{
temp1 = BinaryExpression.ItoFHelper(translation, temp1);
}
// translation.AddAssembly("s_itof", temp1, temp1);
if (be.type2 == Type.INT)
{
temp2 = BinaryExpression.ItoFHelper(translation, temp2);
}
// translation.AddAssembly("s_itof", temp2, temp2);
translation.AddAssembly("cmp_f", temp1, temp2);
}
switch (be.type)
{
case BinaryExpression.Type.EQ:
translation.AddBranch("be", trueLabel);
break;
case BinaryExpression.Type.NE:
translation.AddBranch("bne", trueLabel);
break;
case BinaryExpression.Type.GT:
translation.AddBranch("bg", trueLabel);
break;
case BinaryExpression.Type.GE:
translation.AddBranch("bge", trueLabel);
break;
case BinaryExpression.Type.LT:
translation.AddBranch("bl", trueLabel);
break;
case BinaryExpression.Type.LE:
translation.AddBranch("ble", trueLabel);
break;
}
}
}
else
{
string cond = condition.Generate(translation);
translation.AddAssembly("cmp_i", cond, "RS0");
translation.AddBranch("bne", trueLabel);
}
if (elseStatement is not null)
{
elseStatement.Generate(translation);
}
translation.AddBranch("jmp", skipLabel);
translation.AddLabel(trueLabel);
statement.Generate(translation);
translation.AddLabel(skipLabel);
return(null);
}
private void conditionHelper(DirectTranslation translation, string end, string realBegin, bool fisrt)
{
if (condition is null)
{
if (!fisrt)
{
translation.AddBranch("jmp", realBegin);
}
}
else
{
if (condition is BinaryExpression)
{
BinaryExpression be = condition as BinaryExpression;
if (be.type < BinaryExpression.Type.EQ || be.type > BinaryExpression.Type.LE)
{
string cond = condition.Generate(translation);
translation.AddAssembly("cmp_i", cond, "RS0");
if (fisrt)
{
translation.AddBranch("be", end);
}
else
{
translation.AddBranch("bne", realBegin);
}
}
else
{
string temp1 = be.exp1.Generate(translation);
string temp2 = be.exp2.Generate(translation);
if (be.type1 == Type.INT && be.type2 == Type.INT)
{
translation.AddAssembly("cmp_i", temp1, temp2);
}
else
{
if (be.type1 == Type.INT)
{
temp1 = BinaryExpression.ItoFHelper(translation, temp1);
}
// translation.AddAssembly("s_itof", temp1, temp1);
if (be.type2 == Type.INT)
{
temp2 = BinaryExpression.ItoFHelper(translation, temp2);
}
// translation.AddAssembly("s_itof", temp2, temp2);
translation.AddAssembly("cmp_f", temp1, temp2);
}
switch (be.type)
{
case BinaryExpression.Type.EQ:
if (fisrt)
{
translation.AddBranch("bne", end);
}
else
{
translation.AddBranch("be", realBegin);
}
break;
case BinaryExpression.Type.NE:
if (fisrt)
{
translation.AddBranch("be", end);
}
else
{
translation.AddBranch("bne", realBegin);
}
break;
case BinaryExpression.Type.GT:
if (fisrt)
{
translation.AddBranch("ble", end);
}
else
{
translation.AddBranch("bg", realBegin);
}
break;
case BinaryExpression.Type.GE:
if (fisrt)
{
translation.AddBranch("bl", end);
}
else
{
translation.AddBranch("bge", realBegin);
}
break;
case BinaryExpression.Type.LT:
if (fisrt)
{
translation.AddBranch("bge", end);
}
else
{
translation.AddBranch("bl", realBegin);
}
break;
case BinaryExpression.Type.LE:
if (fisrt)
{
translation.AddBranch("bg", end);
}
else
{
translation.AddBranch("ble", realBegin);
}
break;
}
}
}
else
{
string cond = condition.Generate(translation);
translation.AddAssembly("cmp_i", cond, "RS0");
if (fisrt)
{
translation.AddBranch("be", end);
}
else
{
translation.AddBranch("bne", realBegin);
}
}
}
}
internal override string Generate(DirectTranslation translation)
{
string rhsVar = right.Generate(translation);
if (left is IdentifierExpression)
{
string id = (left as IdentifierExpression).LinkedSymbol.Identifier;
// if (id[0] != '.')
// {
// Symbol s = (left as IdentifierExpression).LinkedSymbol;
// string tempScalar = $".S{VariableCounter}";
// translation.AddAssembly("s_write_low", tempScalar, "0");
// translation.AddAssembly("s_write_high", tempScalar, "8192");
// if (leftType == Type.VECTOR)
// translation.AddAssembly("v_store_16byte", rhsVar, tempScalar, s.Offset.ToString());
// else
// translation.AddAssembly("s_store_4byte", rhsVar, tempScalar, s.Offset.ToString());
// }
// else
// {
if (leftType == Type.VECTOR)
{
translation.AddAssembly("v_mov", id, rhsVar);
}
else
{
translation.AddAssembly("s_mov", id, rhsVar);
}
// }
}
else
{
IndexExpression ie = (left as IndexExpression);
string pointer = ie.expression.Generate(translation);
string index = ie.indexExpression.Generate(translation);
string indexVar, pointerVar;
if (index[2] == '.') // index is not temporary
{
indexVar = $".{index[1]}{VariableCounter}";
}
else
{
indexVar = index;
}
if (pointer[2] == '.') // index is not temporary
{
pointerVar = $".{pointer[1]}{VariableCounter}";
}
else
{
pointerVar = pointer;
}
if (ie.valueType == Type.VECTOR)
{
translation.AddAssembly("v_get_from_s", pointer, rhsVar,
(ie.indexExpression as IntLiteralExpression).i.ToString());
}
else if (ie.valueType == Type.VECTOR_POINTER)
{
translation.AddAssembly("ii_muli", indexVar, index, "16");
translation.AddAssembly("ii_add", pointerVar, indexVar, pointer);
translation.AddAssembly("v_store_16byte", rhsVar, pointerVar, "0");
}
else
{
translation.AddAssembly("ii_muli", indexVar, index, "4");
translation.AddAssembly("ii_add", pointerVar, indexVar, pointer);
translation.AddAssembly("s_store_4byte", rhsVar, pointerVar, "0");
}
}
return(null);
}
internal override string Generate(DirectTranslation translation)
{
return(expression.Generate(translation));
}
abstract internal string Generate(DirectTranslation translation);
