AVX_ALL-Compare-XMM

AVX_ALL-Compare-XMM#

_mm_cmp_pd#

Tech:

AVX_ALL

Category:

Compare

Header:

immintrin.h

Searchable:

AVX_ALL-Compare-XMM

Register:

XMM 128 bit

Return Type:

__m128d

Param Types:

__m128d a, __m128d b, const int imm8

Param ETypes:

FP64 a, FP64 b, IMM imm8

__m128d _mm_cmp_pd(__m128d a, __m128d b, const int imm8);

Intel Description

Compare packed double-precision (64-bit) floating-point elements in “a” and “b” based on the comparison operand specified by “imm8”, and store the results in “dst”.

Intel Implementation Psudeo-Code

CASE (imm8[4:0]) OF
0: OP := _CMP_EQ_OQ
1: OP := _CMP_LT_OS
2: OP := _CMP_LE_OS
3: OP := _CMP_UNORD_Q
4: OP := _CMP_NEQ_UQ
5: OP := _CMP_NLT_US
6: OP := _CMP_NLE_US
7: OP := _CMP_ORD_Q
8: OP := _CMP_EQ_UQ
9: OP := _CMP_NGE_US
10: OP := _CMP_NGT_US
11: OP := _CMP_FALSE_OQ
12: OP := _CMP_NEQ_OQ
13: OP := _CMP_GE_OS
14: OP := _CMP_GT_OS
15: OP := _CMP_TRUE_UQ
16: OP := _CMP_EQ_OS
17: OP := _CMP_LT_OQ
18: OP := _CMP_LE_OQ
19: OP := _CMP_UNORD_S
20: OP := _CMP_NEQ_US
21: OP := _CMP_NLT_UQ
22: OP := _CMP_NLE_UQ
23: OP := _CMP_ORD_S
24: OP := _CMP_EQ_US
25: OP := _CMP_NGE_UQ
26: OP := _CMP_NGT_UQ
27: OP := _CMP_FALSE_OS
28: OP := _CMP_NEQ_OS
29: OP := _CMP_GE_OQ
30: OP := _CMP_GT_OQ
31: OP := _CMP_TRUE_US
ESAC
FOR j := 0 to 1
        i := j*64
        dst[i+63:i] := ( a[i+63:i] OP b[i+63:i] ) ? 0xFFFFFFFFFFFFFFFF : 0
ENDFOR
dst[MAX:128] := 0

_mm_cmp_ps#

Tech:

AVX_ALL

Category:

Compare

Header:

immintrin.h

Searchable:

AVX_ALL-Compare-XMM

Register:

XMM 128 bit

Return Type:

__m128

Param Types:

__m128 a, __m128 b, const int imm8

Param ETypes:

FP32 a, FP32 b, IMM imm8

__m128 _mm_cmp_ps(__m128 a, __m128 b, const int imm8);

Intel Description

Compare packed single-precision (32-bit) floating-point elements in “a” and “b” based on the comparison operand specified by “imm8”, and store the results in “dst”.

Intel Implementation Psudeo-Code

CASE (imm8[4:0]) OF
0: OP := _CMP_EQ_OQ
1: OP := _CMP_LT_OS
2: OP := _CMP_LE_OS
3: OP := _CMP_UNORD_Q
4: OP := _CMP_NEQ_UQ
5: OP := _CMP_NLT_US
6: OP := _CMP_NLE_US
7: OP := _CMP_ORD_Q
8: OP := _CMP_EQ_UQ
9: OP := _CMP_NGE_US
10: OP := _CMP_NGT_US
11: OP := _CMP_FALSE_OQ
12: OP := _CMP_NEQ_OQ
13: OP := _CMP_GE_OS
14: OP := _CMP_GT_OS
15: OP := _CMP_TRUE_UQ
16: OP := _CMP_EQ_OS
17: OP := _CMP_LT_OQ
18: OP := _CMP_LE_OQ
19: OP := _CMP_UNORD_S
20: OP := _CMP_NEQ_US
21: OP := _CMP_NLT_UQ
22: OP := _CMP_NLE_UQ
23: OP := _CMP_ORD_S
24: OP := _CMP_EQ_US
25: OP := _CMP_NGE_UQ
26: OP := _CMP_NGT_UQ
27: OP := _CMP_FALSE_OS
28: OP := _CMP_NEQ_OS
29: OP := _CMP_GE_OQ
30: OP := _CMP_GT_OQ
31: OP := _CMP_TRUE_US
ESAC
FOR j := 0 to 3
        i := j*32
        dst[i+31:i] := ( a[i+31:i] OP b[i+31:i] ) ? 0xFFFFFFFF : 0
ENDFOR
dst[MAX:128] := 0

_mm_cmp_sd#

Tech:

AVX_ALL

Category:

Compare

Header:

immintrin.h

Searchable:

AVX_ALL-Compare-XMM

Register:

XMM 128 bit

Return Type:

__m128d

Param Types:

__m128d a, __m128d b, const int imm8

Param ETypes:

FP64 a, FP64 b, IMM imm8

__m128d _mm_cmp_sd(__m128d a, __m128d b, const int imm8);

Intel Description

Compare the lower double-precision (64-bit) floating-point element in “a” and “b” based on the comparison operand specified by “imm8”, store the result in the lower element of “dst”, and copy the upper element from “a” to the upper element of “dst”.

Intel Implementation Psudeo-Code

CASE (imm8[4:0]) OF
0: OP := _CMP_EQ_OQ
1: OP := _CMP_LT_OS
2: OP := _CMP_LE_OS
3: OP := _CMP_UNORD_Q
4: OP := _CMP_NEQ_UQ
5: OP := _CMP_NLT_US
6: OP := _CMP_NLE_US
7: OP := _CMP_ORD_Q
8: OP := _CMP_EQ_UQ
9: OP := _CMP_NGE_US
10: OP := _CMP_NGT_US
11: OP := _CMP_FALSE_OQ
12: OP := _CMP_NEQ_OQ
13: OP := _CMP_GE_OS
14: OP := _CMP_GT_OS
15: OP := _CMP_TRUE_UQ
16: OP := _CMP_EQ_OS
17: OP := _CMP_LT_OQ
18: OP := _CMP_LE_OQ
19: OP := _CMP_UNORD_S
20: OP := _CMP_NEQ_US
21: OP := _CMP_NLT_UQ
22: OP := _CMP_NLE_UQ
23: OP := _CMP_ORD_S
24: OP := _CMP_EQ_US
25: OP := _CMP_NGE_UQ
26: OP := _CMP_NGT_UQ
27: OP := _CMP_FALSE_OS
28: OP := _CMP_NEQ_OS
29: OP := _CMP_GE_OQ
30: OP := _CMP_GT_OQ
31: OP := _CMP_TRUE_US
ESAC
dst[63:0] := ( a[63:0] OP b[63:0] ) ? 0xFFFFFFFFFFFFFFFF : 0
dst[127:64] := a[127:64]
dst[MAX:128] := 0

_mm_cmp_ss#

Tech:

AVX_ALL

Category:

Compare

Header:

immintrin.h

Searchable:

AVX_ALL-Compare-XMM

Register:

XMM 128 bit

Return Type:

__m128

Param Types:

__m128 a, __m128 b, const int imm8

Param ETypes:

FP32 a, FP32 b, IMM imm8

__m128 _mm_cmp_ss(__m128 a, __m128 b, const int imm8);

Intel Description

Compare the lower single-precision (32-bit) floating-point element in “a” and “b” based on the comparison operand specified by “imm8”, store the result in the lower element of “dst”, and copy the upper 3 packed elements from “a” to the upper elements of “dst”.

Intel Implementation Psudeo-Code

CASE (imm8[4:0]) OF
0: OP := _CMP_EQ_OQ
1: OP := _CMP_LT_OS
2: OP := _CMP_LE_OS
3: OP := _CMP_UNORD_Q
4: OP := _CMP_NEQ_UQ
5: OP := _CMP_NLT_US
6: OP := _CMP_NLE_US
7: OP := _CMP_ORD_Q
8: OP := _CMP_EQ_UQ
9: OP := _CMP_NGE_US
10: OP := _CMP_NGT_US
11: OP := _CMP_FALSE_OQ
12: OP := _CMP_NEQ_OQ
13: OP := _CMP_GE_OS
14: OP := _CMP_GT_OS
15: OP := _CMP_TRUE_UQ
16: OP := _CMP_EQ_OS
17: OP := _CMP_LT_OQ
18: OP := _CMP_LE_OQ
19: OP := _CMP_UNORD_S
20: OP := _CMP_NEQ_US
21: OP := _CMP_NLT_UQ
22: OP := _CMP_NLE_UQ
23: OP := _CMP_ORD_S
24: OP := _CMP_EQ_US
25: OP := _CMP_NGE_UQ
26: OP := _CMP_NGT_UQ
27: OP := _CMP_FALSE_OS
28: OP := _CMP_NEQ_OS
29: OP := _CMP_GE_OQ
30: OP := _CMP_GT_OQ
31: OP := _CMP_TRUE_US
ESAC
dst[31:0] := ( a[31:0] OP b[31:0] ) ? 0xFFFFFFFF : 0
dst[127:32] := a[127:32]
dst[MAX:128] := 0
Contents