The arithmetic operations for the Streaming SIMD Extensions 2 are listed in the following table and are followed by descriptions of each intrinsic.
The prototypes for Streaming SIMD Extensions 2 intrinsics are in the emmintrin.h header file.
| Intrinsic Name |
Corresponding Instruction |
Operation | R0 Value |
R1 Value |
|---|---|---|---|---|
| _mm_add_sd | ADDSD | Addition | a0 [op] b0 | a1 |
| _mm_add_pd | ADDPD | Addition | a0 [op] b0 | a1 [op] b1 |
| _mm_sub_sd | SUBSD | Subtraction | a0 [op] b0 | a1 |
| _mm_sub_pd | SUBPD | Subtraction | a0 [op] b0 | a1 [op] b1 |
| _mm_mul_sd | MULSD | Multiplication | a0 [op] b0 | a1 |
| _mm_mul_pd | MULPD | Multiplication | a0 [op] b0 | a1 [op] b1 |
| _mm_div_sd | DIVSD | Division | a0 [op] b0 | a1 |
| _mm_div_pd | DIVPD | Division | a0 [op] b0 | a1 [op] b1 |
| _mm_sqrt_sd | SQRTSD | Computes Square Root | a0 [op] b0 | a1 |
| _mm_sqrt_pd | SQRTPD | Computes Square Root | a0 [op] b0 | a1 [op] b1 |
| _mm_min_sd | MINSD | Computes Minimum | a0 [op] b0 | a1 |
| _mm_min_pd | MINPD | Computes Minimum | a0 [op] b0 | a1 [op] b1 |
| _mm_max_sd | MAXSD | Computes Maximum | a0 [op] b0 | a1 |
| _mm_max_pd | MAXPD | Computes Maximum | a0 [op] b0 | a1 [op] b1 |
__m128d _mm_add_sd(__m128d a, __m128d b)
Adds the lower DP FP (double-precision, floating-point) values of a and b ; the upper DP FP value is passed through from a.
r0 := a0 + b0
r1 := a1
__m128d _mm_add_pd(__m128d a, __m128d b)
Adds the two DP FP values of a and b.
r0 := a0 + b0
r1 := a1 + b1
__m128d _mm_sub_sd(__m128d a, __m128d b)
Subtracts the lower DP FP value of b from a. The upper DP FP value is passed through from a.
r0 := a0 - b0
r1 := a1
__m128d _mm_sub_pd(__m128d a, __m128d b)
Subtracts the two DP FP values of b from a.
r0 := a0 - b0
r1 := a1 - b1
__m128d _mm_mul_sd(__m128d a, __m128d b)
Multiplies the lower DP FP values of a and b. The upper DP FP is passed through from a.
r0 := a0 * b0
r1 := a1
__m128d _mm_mul_pd(__m128d a, __m128d b)
Multiplies the two DP FP values of a and b.
r0 := a0 * b0
r1 := a1 * b1
__m128d _mm_div_sd(__m128d a, __m128d b)
Divides the lower DP FP values of a and b. The upper DP FP value is passed through from a.
r0 := a0 / b0
r1 := a1
__m128d _mm_div_pd(__m128d a, __m128d b)
Divides the two DP FP values of a and b.
r0 := a0 / b0
r1 := a1 / b1
__m128d _mm_sqrt_sd(__m128d a, __m128d b)
Computes the square root of the lower DP FP value of b. The upper DP FP value is passed through from a.
r0 := sqrt(b0)
r1 := a1
__m128d _mm_sqrt_pd(__m128d a)
Computes the square roots of the two DP FP values of a.
r0 := sqrt(a0)
r1 := sqrt(a1)
__m128d _mm_min_sd(__m128d a, __m128d b)
Computes the minimum of the lower DP FP values of a and b. The upper DP FP value is passed through from a.
r0 := min (a0, b0)
r1 := a1
__m128d _mm_min_pd(__m128d a, __m128d b)
Computes the minima of the two DP FP values of a and b.
r0 := min(a0, b0)
r1 := min(a1, b1)
__m128d _mm_max_sd(__m128d a, __m128d b)
Computes the maximum of the lower DP FP values of a and b. The upper DP FP value is passed through from a.
r0 := max (a0, b0)
r1 := a1
__m128d _mm_max_pd(__m128d a, __m128d b)
Computes the maxima of the two DP FP values of a and b.
r0 := max(a0, b0)
r1 := max(a1, b1)