# SQRTSS
# Compute Square Root of Scalar Single-Precision Floating-Point Value
| Opcode | Mnemonic | Description |
|---|---|---|
| F3 0F 51 /r | SQRTSS xmm1, xmm2/m32 | Compute the square root of the low single-precision floating-point value in xmm2/m32 and store the results in xmm1. |
# Description
Computes the square root of the low single-precision floating-point value in the source operand (second operand) and stores the single-precision floating-point result in the destination operand.
The source operand can be an XMM register or a 32-bit memory location. The destination operand is an XMM register. The three high-order doublewords of the destination operand remain unchanged. See Figure 10-6 in the IA-32 Intel Architecture Software Developer's Manual, Volume 1 for an illustration of a scalar single-precision floating-point operation.
# Operation
Destination[0..31] = SquareRoot(Source[0..31]);
//Destination[64..127] remains unchanged
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| Instruction | Latency | Throughput | Execution Unit |
|---|---|---|---|
| CPUID | 0F3n/0F2n/069n | 0F3n/0F2n/069n | 0F2n |
| SQRTSS xmm, xmm | 32/23/30 | 32/23/29 | FP_DIV |