3-659
INSTRUCTION SET REFERENCE
SQRTSSÂScalar Single-FP Square Root
Description
The SQRTSS instructions return the square root of the lowest SP FP numbers of their operand.
Figure 3-92. Operation of the SQRTSS Instruction
Operation
DEST[31-0] = SQRT (SRC/m32[31-0]);
DEST[63-32] = DEST[63-32];
DEST[95-64] = DEST[95-64];
DEST[127-96] = DEST[127-96];
Intel C/C++ Compiler Intrinsic Equivalent
__m128 _mm_sqrt_ss(__m128 a)
Computes the square root of the lower SP FP value of a; the upper three SP FP values are passed
through.
OpcodeInstruction
Description
F3,0F,51,/rSQRTSS xmm1, xmm2/m32Square Root of the lower SP FP number in XMM2/Mem.
Xmm1
Xmm1
SQRTSS xmm1, xmm2/m32
Xmm2/
m32
=
