internal static byte16 vdiv_byte_SSE_FALLBACK(byte16 dividend, byte16 divisor)
{
Assert.AreNotEqual(divisor.x0, 0);
Assert.AreNotEqual(divisor.x1, 0);
Assert.AreNotEqual(divisor.x2, 0);
Assert.AreNotEqual(divisor.x3, 0);
Assert.AreNotEqual(divisor.x4, 0);
Assert.AreNotEqual(divisor.x5, 0);
Assert.AreNotEqual(divisor.x6, 0);
Assert.AreNotEqual(divisor.x7, 0);
Assert.AreNotEqual(divisor.x8, 0);
Assert.AreNotEqual(divisor.x9, 0);
Assert.AreNotEqual(divisor.x10, 0);
Assert.AreNotEqual(divisor.x11, 0);
Assert.AreNotEqual(divisor.x12, 0);
Assert.AreNotEqual(divisor.x13, 0);
Assert.AreNotEqual(divisor.x14, 0);
Assert.AreNotEqual(divisor.x15, 0);
if (Sse2.IsSse2Supported)
{
byte16 quotients = byte16.zero;
byte16 remainder = byte16.zero;
remainder |= (new byte16(1) & (dividend >> 7));
v128 subtractDivisorFromRemainder = Sse2.cmpeq_epi8(maxmath.min(divisor, remainder), divisor);
remainder -= Mask.BlendV(default(v128), divisor, subtractDivisorFromRemainder);
quotients |= new byte16(1) & subtractDivisorFromRemainder;
for (int i = 6; i > 0; i--)
{
quotients <<= 1;
remainder <<= 1;
remainder |= (new byte16(1) & (dividend >> i));
subtractDivisorFromRemainder = Sse2.cmpeq_epi8(maxmath.min(divisor, remainder), divisor);
remainder -= Mask.BlendV(default(v128), divisor, subtractDivisorFromRemainder);
quotients |= new byte16(1) & subtractDivisorFromRemainder;
}
remainder <<= 1;;
quotients <<= 1;
remainder |= new byte16(1) & dividend;
subtractDivisorFromRemainder = Sse2.cmpeq_epi8(maxmath.min(divisor, remainder), divisor);
quotients |= new byte16(1) & subtractDivisorFromRemainder;
return(quotients);
}
else
{
throw new CPUFeatureCheckException();
}
}
