public override IArithmetic MulHi(IArithmetic r)
{
var a = context.MkZeroExt(expr.SortSize * 2, expr);
var basemult = Eval(r);
var b = context.MkZeroExt(basemult.SortSize * 2, basemult);
var multed = context.MkBVMul(a, b);
return(new BitVecWrapper(context.MkExtract(expr.SortSize * 2 - 1, expr.SortSize, multed), context));
}
protected BitVecExpr Eval(IArithmetic x)
{
if (x is BitVecWrapper a)
{
return(a.expr);
}
else
{
throw new ArgumentException("type mismatch");
}
}
protected ulong Eval(IArithmetic x)
{
if (x is Arithmetic a)
{
return(a.expr);
}
else
{
throw new ArgumentException("type mismatch");
}
}
public override object Equals(IArithmetic r)
{
if (r is BitVecWrapper x)
{
return(context.MkEq(expr, x.expr));
}
else if (r is Arithmetic a)
{
return(context.MkEq(expr, context.MkBV((ulong)a.Expression, bits)));
}
else
{
throw new NotSupportedException();
}
}
public override IArithmetic MulHi(IArithmetic r)
{
var mult = Eval(r);
ulong
al = (uint)expr,
ah = expr >> 32,
bl = (uint)mult,
bh = mult >> 32;
ulong
ll = al * bl,
lh = al * bh,
hl = ah * bl,
hh = ah * bh;
ulong mid = hl + (ll >> 32) + (uint)lh;
return(new Arithmetic(hh + (mid >> 32) + (lh >> 32)));
}
public override IArithmetic Ror(IArithmetic sh) => new BitVecWrapper(context.MkBVRotateRight(expr, Eval(sh)), context);
public override IArithmetic Sar(IArithmetic sh) => new BitVecWrapper(context.MkBVASHR(expr, Eval(sh)), context);
public abstract IArithmetic Ror(IArithmetic sh);
public abstract IArithmetic Shl(IArithmetic sh);
public abstract IArithmetic And(IArithmetic r);
public abstract IArithmetic Sub(IArithmetic r);
public override object NotEquals(IArithmetic r) => expr != Eval(r);
public override IArithmetic Ror(IArithmetic sh) => new Arithmetic(expr >> (int)(Eval(sh) & 0x3f) | expr << (64 - (int)(Eval(sh) & 0x3f)));
public override IArithmetic Sar(IArithmetic sh) => new Arithmetic((ulong)((long)expr >> (int)(Eval(sh) & 0x3f)));
public override IArithmetic Shr(IArithmetic sh) => new Arithmetic(expr >> (int)(Eval(sh) & 0x3f));
public override IArithmetic Or(IArithmetic r) => new Arithmetic(expr | Eval(r));
public override IArithmetic And(IArithmetic r) => new Arithmetic(expr & Eval(r));
public override IArithmetic Xor(IArithmetic r) => new Arithmetic(expr ^ Eval(r));
public static IArithmetic Output(IArithmetic s)
{
return(s << 2 ^ s.Sar(19));
}
public static IArithmetic Output(IArithmetic s, IArithmetic c)
{
return((s + c).Rol(15) - s);
}
public override object NotEquals(IArithmetic r) => context.MkNot(Equals(r) as BoolExpr);
public abstract IArithmetic MulHi(IArithmetic r);
public override IArithmetic Add(IArithmetic r) => new Arithmetic(expr + Eval(r));
public abstract IArithmetic Or(IArithmetic r);
public override IArithmetic Sub(IArithmetic r) => new Arithmetic(expr - Eval(r));
public abstract IArithmetic Sar(IArithmetic sh);
public override IArithmetic Or(IArithmetic r) => new BitVecWrapper(context.MkBVOR(expr, Eval(r)), context);
public abstract object NotEquals(IArithmetic r);
public override IArithmetic Mul(IArithmetic r) => new Arithmetic(expr * Eval(r));
