x86 Instruction Set Reference
SQRTSS
Compute Square Root of Scalar Single-Precision Floating-Point Value
Opcode | Mnemonic | Description |
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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 |
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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 |
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Destination[0..31] = SquareRoot(Source[0..31]); //Destination[64..127] remains unchanged |
Instruction | Latency | Throughput | Execution Unit |
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CPUID | 0F3n/0F2n/069n | 0F3n/0F2n/069n | 0F2n |
SQRTSS xmm, xmm | 32/23/30 | 32/23/29 | FP_DIV |