public override void ExitTerm1(ssuplParser.Term1Context context)
{
//term : term MULOP neg
if (context.MULOP().GetText() == "*")
{
//Console.WriteLine("made it here *");
code.Put(context,
code.Get(context.term()),
code.Get(context.neg()),
"pop rbx", //value from term
"pop rax", //value from neg
"imul rax,rbx",
"push rax"
);
}
else if (context.MULOP().GetText() == "/")
{
//Console.WriteLine("made it here /");
code.Put(context,
code.Get(context.term()),
code.Get(context.neg()),
"pop rbx", //value from term
"pop rax", //value from neg
"mov rdx,0", //Must clear the divisor register
"idiv rbx",
"push rax"
);
}
else //Modulo
{
//Console.WriteLine("made it here /");
code.Put(context,
code.Get(context.term()),
code.Get(context.neg()),
"pop rbx", //value from term
"pop rax", //value from neg
"mov rdx,0", //Must clear the divisor register
"idiv rbx",
"push rdx"
);
}
}
public override void ExitTerm1(ssuplParser.Term1Context context)
{
//term : term MULOP neg
if (type(context.term()) != type(context.neg()))
{
throw new Exception("Type mismatch");
}
typeAttr.Put(context, type(context.term()));
switch (type(context.term()))
{
case VarType.INT:
if (context.MULOP().GetText() == "*")
{
//Console.WriteLine("made it here *");
code.Put(context,
code.Get(context.term()),
code.Get(context.neg()),
"pop rbx", //value from term
"pop rax", //value from neg
"imul rax,rbx",
"push rax"
);
}
else if (context.MULOP().GetText() == "/")
{
//Console.WriteLine("made it here /");
code.Put(context,
code.Get(context.term()),
code.Get(context.neg()),
"pop rbx", //value from term
"pop rax", //value from neg
"mov rdx,0", //Must clear the divisor register
"idiv rbx",
"push rax"
);
}
else //Modulo
{
//Console.WriteLine("made it here /");
code.Put(context,
code.Get(context.term()),
code.Get(context.neg()),
"pop rbx", //value from term
"pop rax", //value from neg
"mov rdx,0", //Must clear the divisor register
"idiv rbx",
"push rdx"
);
}
break;
case VarType.DOUBLE:
if (context.MULOP().GetText() == "*")
{
//Console.WriteLine("made it here *");
code.Put(context,
code.Get(context.term()),
code.Get(context.neg()),
"movq xmm0, [rsp]", //pop double from stack from term
"add rsp,8",
"movq xmm1, [rsp]", //pop double from stack from neg
"add rsp,8",
"mulsd xmm0,xmm1",
"sub rsp,8",
"movq [rsp], xmm0" //push back on to stack
);
}
else if (context.MULOP().GetText() == "/")
{
//Console.WriteLine("made it here /");
code.Put(context,
code.Get(context.term()),
code.Get(context.neg()),
"movq xmm0, [rsp]", //pop double from stack from term
"add rsp,8",
"movq xmm1, [rsp]", //pop double from stack from neg
"add rsp,8",
"divsd xmm1,xmm0",
"sub rsp,8",
"movq [rsp], xmm1" //push back on to stack
);
}
else //Modulo
{
throw new Exception("Modulo not possible on double type");
}
break;
case VarType.VEC4:
if (context.MULOP().GetText() == "*")
{
//Console.WriteLine("made it here *");
code.Put(context,
code.Get(context.term()),
code.Get(context.neg()),
"movq xmm4, [rsp]", //term.x
"movq xmm0, [rsp+32]", //sum.x
"mulsd xmm0,xmm4", //result.x
"movq xmm4, [rsp+8]", //term.y
"movq xmm1, [rsp+40]", //sum.y
"mulsd xmm1,xmm4", //result.y
"movq xmm4, [rsp+16]", //term.z
"movq xmm2, [rsp+48]", //sum.z
"mulsd xmm2,xmm4", //result.z
"movq xmm4, [rsp+24]", //term.w
"movq xmm3, [rsp+56]", //sum.w
"mulsd xmm3,xmm4", //result.w
"add rsp,32", //pop 64 bytes, push 32
"movq [rsp], xmm0", //result.x
"movq [rsp+8], xmm1", //result.y
"movq [rsp+16], xmm2", //result.z
"movq [rsp+24], xmm3" //result.w
);
}
else if (context.MULOP().GetText() == "/")
{
//Console.WriteLine("made it here /");
code.Put(context,
code.Get(context.term()),
code.Get(context.neg()),
"movq xmm4, [rsp]", //term.x
"movq xmm0, [rsp+32]", //sum.x
"divsd xmm0,xmm4", //result.x
"movq xmm4, [rsp+8]", //term.y
"movq xmm1, [rsp+40]", //sum.y
"divsd xmm1,xmm4", //result.y
"movq xmm4, [rsp+16]", //term.z
"movq xmm2, [rsp+48]", //sum.z
"divsd xmm2,xmm4", //result.z
"movq xmm4, [rsp+24]", //term.w
"movq xmm3, [rsp+56]", //sum.w
"divsd xmm3,xmm4", //result.w
"add rsp,32", //pop 64 bytes, push 32
"movq [rsp], xmm0", //result.x
"movq [rsp+8], xmm1", //result.y
"movq [rsp+16], xmm2", //result.z
"movq [rsp+24], xmm3" //result.w
);
}
else //Modulo
{
throw new Exception("Modulo not possible on vec4 type");
}
break;
}
}
/// <summary>
/// Exit a parse tree produced by the <c>term1</c>
/// labeled alternative in <see cref="ssuplParser.term"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitTerm1([NotNull] ssuplParser.Term1Context context)
{
}
