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VPBROADCAST—Load Integer and Broadcast

Opcode/Instruction Op /En 64/32 bit Mode Support CPUID Feature Flag Description

VEX.128.66.0F38.W0 78 /r

VPBROADCASTB xmm1, xmm2/m8

 RM V/V AVX2 Broadcast a byte integer in the source operand to sixteen locations in xmm1.

VEX.256.66.0F38.W0 78 /r

VPBROADCASTB ymm1, xmm2/m8

 RM V/V AVX2 Broadcast a byte integer in the source operand to thirty-two locations in ymm1.

EVEX.128.66.0F38.W0 78 /r

VPBROADCASTB xmm1{k1}{z}, xmm2/m8

 T1S V/V

AVX512VL

AVX512BW

 Broadcast a byte integer in the source operand to locations in xmm1 subject to writemask k1.

EVEX.256.66.0F38.W0 78 /r

VPBROADCASTB ymm1{k1}{z}, xmm2/m8

 T1S V/V

AVX512VL

AVX512BW

 Broadcast a byte integer in the source operand to locations in ymm1 subject to writemask k1.

EVEX.512.66.0F38.W0 78 /r

VPBROADCASTB zmm1{k1}{z}, xmm2/m8

 T1S V/V AVX512BW Broadcast a byte integer in the source operand to 64 locations in zmm1 subject to writemask k1.

VEX.128.66.0F38.W0 79 /r

VPBROADCASTW xmm1, xmm2/m16

 RM V/V AVX2 Broadcast a word integer in the source operand to eight locations in xmm1.

VEX.256.66.0F38.W0 79 /r

VPBROADCASTW ymm1, xmm2/m16

 RM V/V AVX2 Broadcast a word integer in the source operand to sixteen locations in ymm1.

EVEX.128.66.0F38.W0 79 /r

VPBROADCASTW xmm1{k1}{z}, xmm2/m16

 T1S V/V

AVX512VL

AVX512BW

 Broadcast a word integer in the source operand to locations in xmm1 subject to writemask k1.

EVEX.256.66.0F38.W0 79 /r

VPBROADCASTW ymm1{k1}{z}, xmm2/m16

 T1S V/V

AVX512VL

AVX512BW

 Broadcast a word integer in the source operand to locations in ymm1 subject to writemask k1.

EVEX.512.66.0F38.W0 79 /r

VPBROADCASTW zmm1{k1}{z}, xmm2/m16

 T1S V/V AVX512BW Broadcast a word integer in the source operand to 32 locations in zmm1 subject to writemask k1.

VEX.128.66.0F38.W0 58 /r

VPBROADCASTD xmm1, xmm2/m32

 RM V/V AVX2 Broadcast a dword integer in the source operand to four locations in xmm1.

VEX.256.66.0F38.W0 58 /r

VPBROADCASTD ymm1, xmm2/m32

 RM V/V AVX2 Broadcast a dword integer in the source operand to eight locations in ymm1.

EVEX.128.66.0F38.W0 58 /r

VPBROADCASTD xmm1 {k1}{z}, xmm2/m32

 T1S V/V

AVX512VL

AVX512F

 Broadcast a dword integer in the source operand to locations in xmm1 subject to writemask k1.

EVEX.256.66.0F38.W0 58 /r

VPBROADCASTD ymm1 {k1}{z}, xmm2/m32

 T1S V/V

AVX512VL

AVX512F

 Broadcast a dword integer in the source operand to locations in ymm1 subject to writemask k1.

EVEX.512.66.0F38.W0 58 /r

VPBROADCASTD zmm1 {k1}{z}, xmm2/m32

 T1S V/V AVX512F Broadcast a dword integer in the source operand to locations in zmm1 subject to writemask k1.

VEX.128.66.0F38.W0 59 /r

VPBROADCASTQ xmm1, xmm2/m64

 RM V/V AVX2 Broadcast a qword element in source operand to two locations in xmm1.

VEX.256.66.0F38.W0 59 /r

VPBROADCASTQ ymm1, xmm2/m64

 RM V/V AVX2 Broadcast a qword element in source operand to four locations in ymm1.

EVEX.128.66.0F38.W1 59 /r

VPBROADCASTQ xmm1 {k1}{z}, xmm2/m64

 T1S V/V

AVX512VL

AVX512F

 Broadcast a qword element in source operand to locations in xmm1 subject to writemask k1.

EVEX.256.66.0F38.W1 59 /r

VPBROADCASTQ ymm1 {k1}{z}, xmm2/m64

 T1S V/V

AVX512VL

AVX512F

 Broadcast a qword element in source operand to locations in ymm1 subject to writemask k1.

EVEX.512.66.0F38.W1 59 /r

VPBROADCASTQ zmm1 {k1}{z}, xmm2/m64

 T1S V/V AVX512F Broadcast a qword element in source operand to locations in zmm1 subject to writemask k1.

EVEX.128.66.0F38.W0 59 /r

VBROADCASTI32x2 xmm1 {k1}{z}, xmm2/m64

 T2 V/V

AVX512VL

AVX512DQ

 Broadcast two dword elements in source operand to locations in xmm1 subject to writemask k1.

EVEX.256.66.0F38.W0 59 /r

VBROADCASTI32x2 ymm1 {k1}{z}, xmm2/m64

 T2 V/V

AVX512VL

AVX512DQ

 Broadcast two dword elements in source operand to locations in ymm1 subject to writemask k1.

EVEX.512.66.0F38.W0 59 /r

VBROADCASTI32x2 zmm1 {k1}{z}, xmm2/m64

 T2 V/V AVX512DQ Broadcast two dword elements in source operand to locations in zmm1 subject to writemask k1.

VEX.256.66.0F38.W0 5A /r

VBROADCASTI128 ymm1, m128

 RM V/V AVX2 Broadcast 128 bits of integer data in mem to low and high 128-bits in ymm1.

EVEX.256.66.0F38.W0 5A /r

VBROADCASTI32X4 ymm1 {k1}{z}, m128

 T4 V/V

AVX512VL

AVX512F

 Broadcast 128 bits of 4 doubleword integer data in mem to locations in ymm1 using writemask k1.

EVEX.512.66.0F38.W0 5A /r

VBROADCASTI32X4 zmm1 {k1}{z}, m128

 T4 V/V AVX512F Broadcast 128 bits of 4 doubleword integer data in mem to locations in zmm1 using writemask k1.

EVEX.256.66.0F38.W1 5A /r

VBROADCASTI64X2 ymm1 {k1}{z}, m128

 T2 V/V

AVX512VL

AVX512DQ

 Broadcast 128 bits of 2 quadword integer data in mem to locations in ymm1 using writemask k1.

EVEX.512.66.0F38.W1 5A /r

VBROADCASTI64X2 zmm1 {k1}{z}, m128

 T2 V/V AVX512DQ Broadcast 128 bits of 2 quadword integer data in mem to locations in zmm1 using writemask k1.

EVEX.512.66.0F38.W0 5B /r

VBROADCASTI32X8 zmm1 {k1}{z}, m256

 T8 V/V AVX512DQ Broadcast 256 bits of 8 doubleword integer data in mem to locations in zmm1 using writemask k1.

EVEX.512.66.0F38.W1 5B /r

VBROADCASTI64X4 zmm1 {k1}{z}, m256

 T4 V/V AVX512F Broadcast 256 bits of 4 quadword integer data in mem to locations in zmm1 using writemask k1.

Instruction Operand Encoding

Op/En Operand 1 Operand 2 Operand 3 Operand 4
RM ModRM:reg (w) ModRM:r/m (r) NA NA
T1S, T2, T4, T8 ModRM:reg (w) ModRM:r/m (r) NA NA

Description

Load integer data from the source operand (the second operand) and broadcast to all elements of the destination operand (the first operand).

VEX256-encoded VPBROADCASTB/W/D/Q: The source operand is 8-bit, 16-bit, 32-bit, 64-bit memory location or the low 8-bit, 16-bit 32-bit, 64-bit data in an XMM register. The destination operand is a YMM register. VPBROADCASTI128 support the source operand of 128-bit memory location. Register source encodings for VPBROADCASTI128 is reserved and will #UD. Bits (MAX_VL-1:256) of the destination register are zeroed.

EVEX-encoded VPBROADCASTD/Q: The source operand is a 32-bit, 64-bit memory location or the low 32-bit, 64-bit data in an XMM register. The destination operand is a ZMM/YMM/XMM register and updated according to the writemask k1.

VPBROADCASTI32X4 and VPBROADCASTI64X4: The destination operand is a ZMM register and updated according to the writemask k1. The source operand is 128-bit or 256-bit memory location. Register source encodings for VBROADCASTI32X4 and VBROADCASTI64X4 are reserved and will #UD.

Note: VEX.vvvv and EVEX.vvvv are reserved and must be 1111b otherwise instructions will #UD.

If VPBROADCASTI128 is encoded with VEX.L= 0, an attempt to execute the instruction encoded with VEX.L= 0 will cause an #UD exception.

Operation


VPBROADCASTB (EVEX encoded versions)

(KL, VL) = (16, 128), (32, 256), (64, 512)
FOR j (cid:197) 0 TO KL-1
    i (cid:197)j * 8
    IF k1[j] OR *no writemask*
        THEN DEST[i+7:i] (cid:197) SRC[7:0]
        ELSE
        IF *merging-masking*
            ; merging-masking
            THEN *DEST[i+7:i] remains unchanged*
            ELSE
            ; zeroing-masking
            DEST[i+7:i] (cid:197) 0
        FI
    FI;
ENDFOR
DEST[MAX_VL-1:VL] (cid:197) 0


VPBROADCASTW (EVEX encoded versions)

(KL, VL) = (8, 128), (16, 256), (32, 512)
FOR j (cid:197) 0 TO KL-1
    i (cid:197)j * 16
    IF k1[j] OR *no writemask*
        THEN DEST[i+15:i] (cid:197) SRC[15:0]
        ELSE
        IF *merging-masking*
            ; merging-masking
            THEN *DEST[i+15:i] remains unchanged*
            ELSE
            ; zeroing-masking
            DEST[i+15:i] (cid:197) 0
        FI
    FI;
ENDFOR
DEST[MAX_VL-1:VL] (cid:197) 0


VPBROADCASTD (128 bit version)

temp (cid:197) SRC[31:0]
DEST[31:0] (cid:197) temp
DEST[63:32] (cid:197) temp
DEST[95:64] (cid:197) temp
DEST[127:96] (cid:197) temp
DEST[MAX_VL-1:128] (cid:197) 0


VPBROADCASTD (VEX.256 encoded version)

temp (cid:197) SRC[31:0]
DEST[31:0] (cid:197) temp
DEST[63:32] (cid:197) temp
DEST[95:64] (cid:197) temp
DEST[127:96] (cid:197) temp
DEST[159:128] (cid:197) temp
DEST[191:160] (cid:197) temp
DEST[223:192] (cid:197) temp
DEST[255:224] (cid:197) temp
DEST[MAX_VL-1:256] (cid:197) 0
VPBROADCASTD (EVEX encoded versions)
(KL, VL) = (4, 128), (8, 256), (16, 512)
FOR j (cid:197) 0 TO KL-1
    i (cid:197)j * 32
    IF k1[j] OR *no writemask*
        THEN DEST[i+31:i] (cid:197) SRC[31:0]
        ELSE
        IF *merging-masking*
            ; merging-masking
            THEN *DEST[i+31:i] remains unchanged*
            ELSE
            ; zeroing-masking
            DEST[i+31:i] (cid:197) 0
        FI
    FI;
ENDFOR
DEST[MAX_VL-1:VL] (cid:197) 0


VPBROADCASTQ (VEX.256 encoded version)

temp (cid:197) SRC[63:0]
DEST[63:0] (cid:197) temp
DEST[127:64] (cid:197) temp
DEST[191:128] (cid:197) temp
DEST[255:192] (cid:197) temp
DEST[MAX_VL-1:256] (cid:197) 0


VPBROADCASTQ (EVEX encoded versions)

(KL, VL) = (2, 128), (4, 256), (8, 512)
FOR j (cid:197) 0 TO KL-1
    i (cid:197)j * 64
    IF k1[j] OR *no writemask*
        THEN DEST[i+63:i] (cid:197) SRC[63:0]
        ELSE
        IF *merging-masking*
            ; merging-masking
            THEN *DEST[i+63:i] remains unchanged*
            ELSE
            ; zeroing-masking
            DEST[i+63:i] (cid:197) 0
        FI
    FI;
ENDFOR
DEST[MAX_VL-1:VL] (cid:197) 0
VBROADCASTI32x2 (EVEX encoded versions)
(KL, VL) = (4, 128), (8, 256), (16, 512)
FOR j (cid:197) 0 TO KL-1
    i (cid:197)(cid:3)j * 32
    n (cid:197)(cid:3)(j mod 2) * 32
    IF k1[j] OR *no writemask*
        THEN DEST[i+31:i] (cid:197) SRC[n+31:n]
        ELSE
        IF *merging-masking*
            ; merging-masking
            THEN *DEST[i+31:i] remains unchanged*
            ELSE
            ; zeroing-masking
            DEST[i+31:i] (cid:197) 0
        FI
    FI;
ENDFOR
DEST[MAX_VL-1:VL] (cid:197) 0


VBROADCASTI128 (VEX.256 encoded version)

temp (cid:197) SRC[127:0]
DEST[127:0] (cid:197) temp
DEST[255:128] (cid:197) temp
DEST[MAX_VL-1:256] (cid:197) 0


VBROADCASTI32X4 (EVEX encoded versions)

(KL, VL) = (8, 256), (16, 512)
FOR j (cid:197) 0 TO KL-1
    i (cid:197)(cid:3)j* 32
    n (cid:197)(cid:3)(j modulo 4) * 32
    IF k1[j] OR *no writemask*
        THEN DEST[i+31:i] (cid:197) SRC[n+31:n]
        ELSE
        IF *merging-masking*
            ; merging-masking
            THEN *DEST[i+31:i] remains unchanged*
            ELSE
            ; zeroing-masking
            DEST[i+31:i] (cid:197) 0
        FI
    FI;
ENDFOR
DEST[MAX_VL-1:VL] (cid:197) 0


VBROADCASTI64X2 (EVEX encoded versions)

(KL, VL) = (8, 256), (16, 512)
FOR j (cid:197) 0 TO KL-1
    i (cid:197) j * 64
    n (cid:197)(j modulo 2) * 64
    IF k1[j] OR *no writemask*
        THEN DEST[i+63:i] (cid:197) SRC[n+63:n]
        ELSE
        IF *merging-masking*
            ; merging-masking
            THEN *DEST[i+63:i] remains unchanged*
            ELSE
            ; zeroing-masking
            DEST[i+63:i] = 0
        FI
    FI;
ENDFOR;


VBROADCASTI32X8 (EVEX.U1.512 encoded version)

FOR j (cid:197) 0 TO 15
    i (cid:197) j * 32
    n (cid:197)(j modulo 8) * 32
    IF k1[j] OR *no writemask*
        THEN DEST[i+31:i] (cid:197) SRC[n+31:n]
        ELSE
        IF *merging-masking*
            ; merging-masking
            THEN *DEST[i+31:i] remains unchanged*
            ELSE
            ; zeroing-masking
            DEST[i+31:i] (cid:197) 0
        FI
    FI;
ENDFOR
DEST[MAX_VL-1:VL] (cid:197) 0


VBROADCASTI64X4 (EVEX.512 encoded version)

FOR j (cid:197) 0 TO 7
    i (cid:197) j * 64
    n (cid:197)(cid:3)(j modulo 4) * 64
    IF k1[j] OR *no writemask*
        THEN DEST[i+63:i] (cid:197) SRC[n+63:n]
        ELSE
        IF *merging-masking*
            ; merging-masking
            THEN *DEST[i+63:i] remains unchanged*
            ELSE
            ; zeroing-masking
            DEST[i+63:i] (cid:197) 0
        FI
    FI;
ENDFOR
DEST[MAX_VL-1:VL] (cid:197) 0



Intel C/C++ Compiler Intrinsic Equivalent


VPBROADCASTB __m512i _mm512_broadcastb_epi8( __m128i a);
VPBROADCASTB __m512i _mm512_mask_broadcastb_epi8(__m512i s, __mmask64 k, __m128i a);
VPBROADCASTB __m512i _mm512_maskz_broadcastb_epi8( __mmask64 k, __m128i a);
VPBROADCASTB __m256i _mm256_broadcastb_epi8(__m128i a);
VPBROADCASTB __m256i _mm256_mask_broadcastb_epi8(__m256i s, __mmask32 k, __m128i a);
VPBROADCASTB __m256i _mm256_maskz_broadcastb_epi8( __mmask32 k, __m128i a);
VPBROADCASTB __m128i _mm_mask_broadcastb_epi8(__m128i s, __mmask16 k, __m128i a);
VPBROADCASTB __m128i _mm_maskz_broadcastb_epi8( __mmask16 k, __m128i a);
VPBROADCASTB __m128i _mm_broadcastb_epi8(__m128i a);
VPBROADCASTD __m512i _mm512_broadcastd_epi32( __m128i a);
VPBROADCASTD __m512i _mm512_mask_broadcastd_epi32(__m512i s, __mmask16 k, __m128i a);
VPBROADCASTD __m512i _mm512_maskz_broadcastd_epi32( __mmask16 k, __m128i a);
VPBROADCASTD __m256i _mm256_broadcastd_epi32( __m128i a);
VPBROADCASTD __m256i _mm256_mask_broadcastd_epi32(__m256i s, __mmask8 k, __m128i a);
VPBROADCASTD __m256i _mm256_maskz_broadcastd_epi32( __mmask8 k, __m128i a);
VPBROADCASTD __m128i _mm_broadcastd_epi32(__m128i a);
VPBROADCASTD __m128i _mm_mask_broadcastd_epi32(__m128i s, __mmask8 k, __m128i a);
VPBROADCASTD __m128i _mm_maskz_broadcastd_epi32( __mmask8 k, __m128i a);
VPBROADCASTQ __m512i _mm512_broadcastq_epi64( __m128i a);
VPBROADCASTQ __m512i _mm512_mask_broadcastq_epi64(__m512i s, __mmask8 k, __m128i a);
VPBROADCASTQ __m512i _mm512_maskz_broadcastq_epi64( __mmask8 k, __m128i a);
VPBROADCASTQ __m256i _mm256_broadcastq_epi64(__m128i a);
VPBROADCASTQ __m256i _mm256_mask_broadcastq_epi64(__m256i s, __mmask8 k, __m128i a);
VPBROADCASTQ __m256i _mm256_maskz_broadcastq_epi64( __mmask8 k, __m128i a);
VPBROADCASTQ __m128i _mm_broadcastq_epi64(__m128i a);
VPBROADCASTQ __m128i _mm_mask_broadcastq_epi64(__m128i s, __mmask8 k, __m128i a);
VPBROADCASTQ __m128i _mm_maskz_broadcastq_epi64( __mmask8 k, __m128i a);
VPBROADCASTW __m512i _mm512_broadcastw_epi16(__m128i a);
VPBROADCASTW __m512i _mm512_mask_broadcastw_epi16(__m512i s, __mmask32 k, __m128i a);
VPBROADCASTW __m512i _mm512_maskz_broadcastw_epi16( __mmask32 k, __m128i a);
VPBROADCASTW __m256i _mm256_broadcastw_epi16(__m128i a);
VPBROADCASTW __m256i _mm256_mask_broadcastw_epi16(__m256i s, __mmask16 k, __m128i a);
VPBROADCASTW __m256i _mm256_maskz_broadcastw_epi16( __mmask16 k, __m128i a);
VPBROADCASTW __m128i _mm_broadcastw_epi16(__m128i a);
VPBROADCASTW __m128i _mm_mask_broadcastw_epi16(__m128i s, __mmask8 k, __m128i a);
VPBROADCASTW __m128i _mm_maskz_broadcastw_epi16( __mmask8 k, __m128i a);
VBROADCASTI32x2 __m512i _mm512_broadcast_i32x2( __m128i a);
VBROADCASTI32x2 __m512i _mm512_mask_broadcast_i32x2(__m512i s, __mmask16 k, __m128i a);
VBROADCASTI32x2 __m512i _mm512_maskz_broadcast_i32x2( __mmask16 k, __m128i a);
VBROADCASTI32x2 __m256i _mm256_broadcast_i32x2( __m128i a);
VBROADCASTI32x2 __m256i _mm256_mask_broadcast_i32x2(__m256i s, __mmask8 k, __m128i a);
VBROADCASTI32x2 __m256i _mm256_maskz_broadcast_i32x2( __mmask8 k, __m128i a);
VBROADCASTI32x2 __m128i _mm_broadcastq_i32x2(__m128i a);
VBROADCASTI32x2 __m128i _mm_mask_broadcastq_i32x2(__m128i s, __mmask8 k, __m128i a);
VBROADCASTI32x2 __m128i _mm_maskz_broadcastq_i32x2( __mmask8 k, __m128i a);
VBROADCASTI32x4 __m512i _mm512_broadcast_i32x4( __m128i a);
VBROADCASTI32x4 __m512i _mm512_mask_broadcast_i32x4(__m512i s, __mmask16 k, __m128i a);
VBROADCASTI32x4 __m512i _mm512_maskz_broadcast_i32x4( __mmask16 k, __m128i a);
VBROADCASTI32x4 __m256i _mm256_broadcast_i32x4( __m128i a);
VBROADCASTI32x4 __m256i _mm256_mask_broadcast_i32x4(__m256i s, __mmask8 k, __m128i a);
VBROADCASTI32x4 __m256i _mm256_maskz_broadcast_i32x4( __mmask8 k, __m128i a);
VBROADCASTI32x8 __m512i _mm512_broadcast_i32x8( __m256i a);
VBROADCASTI32x8 __m512i _mm512_mask_broadcast_i32x8(__m512i s, __mmask16 k, __m256i a);
VBROADCASTI32x8 __m512i _mm512_maskz_broadcast_i32x8( __mmask16 k, __m256i a);
VBROADCASTI64x2 __m512i _mm512_broadcast_i64x2( __m128i a);
VBROADCASTI64x2 __m512i _mm512_mask_broadcast_i64x2(__m512i s, __mmask8 k, __m128i a);
VBROADCASTI64x2 __m512i _mm512_maskz_broadcast_i64x2( __mmask8 k, __m128i a);
VBROADCASTI64x2 __m256i _mm256_broadcast_i64x2( __m128i a);
VBROADCASTI64x2 __m256i _mm256_mask_broadcast_i64x2(__m256i s, __mmask8 k, __m128i a);
VBROADCASTI64x2 __m256i _mm256_maskz_broadcast_i64x2( __mmask8 k, __m128i a);
VBROADCASTI64x4 __m512i _mm512_broadcast_i64x4( __m256i a);
VBROADCASTI64x4 __m512i _mm512_mask_broadcast_i64x4(__m512i s, __mmask8 k, __m256i a);
VBROADCASTI64x4 __m512i _mm512_maskz_broadcast_i64x4( __mmask8 k, __m256i a);



SIMD Floating-Point Exceptions


None


Other Exceptions





EVEX-encoded instructions, see Exceptions Type 6;



EVEX-encoded instructions, syntax with reg/mem operand, see Exceptions Type E6.



If VEX.L = 0 for VPBROADCASTQ, VPBROADCASTI128.



If EVEX.L’L = 0 for VBROADCASTI32X4/VBROADCASTI64X2.



If EVEX.L’L < 10b for VBROADCASTI32X8/VBROADCASTI64X4.