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 A 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 A 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 B 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 B 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 B 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 A 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 A 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 B 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 B 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 B 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 A 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 A 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 B 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 B 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 B 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 A 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 A 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 B 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 B 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 B 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 C 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 C 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 C 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 A 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 D 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 D 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 C 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 C 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 E 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 D 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 Tuple Type Operand 1 Operand 2 Operand 3 Operand 4
A N/A ModRM:reg (w) ModRM:r/m (r) N/A N/A
B Tuple1 Scalar ModRM:reg (w) ModRM:r/m (r) N/A N/A
C Tuple2 ModRM:reg (w) ModRM:r/m (r) N/A N/A
D Tuple4 ModRM:reg (w) ModRM:r/m (r) N/A N/A
E Tuple8 ModRM:reg (w) ModRM:r/m (r) N/A N/A

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. VPBROAD-CASTI128 support the source operand of 128-bit memory location. Register source encodings for VPBROADCAS-TI128 is reserved and will #UD. Bits (MAXVL-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.

X0 m32 DEST X0 X0 X0 X0 X0 X0 X0 X0
Figure 5-16. VPBROADCASTD Operation (VEX.256 encoded version)
X0 m32 DEST 0 0 0 0 X0 X0 X0 X0
Figure 5-17. VPBROADCASTD Operation (128-bit version)
m64 X0 DEST X0 X0 X0 X0
Figure 5-18. VPBROADCASTQ Operation (256-bit version)
m128 X0 DEST X0 X0
Figure 5-19. VBROADCASTI128 Operation (256-bit version)
m256 X0 DEST X0 X0
Figure 5-20. VBROADCASTI256 Operation (512-bit version)

Operation

VPBROADCASTB (EVEX encoded versions)

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

VPBROADCASTW (EVEX encoded versions)

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

VPBROADCASTD (128 bit version)

temp := SRC[31:0]
DEST[31:0] := temp
DEST[63:32] := temp
DEST[95:64] := temp
DEST[127:96] := temp
DEST[MAXVL-1:128] := 0

VPBROADCASTD (VEX.256 encoded version)

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

VPBROADCASTQ (VEX.256 encoded version)

temp := SRC[63:0]
DEST[63:0] := temp
DEST[127:64] := temp
DEST[191:128] := temp
DEST[255:192] := temp
DEST[MAXVL-1:256] := 0

VPBROADCASTQ (EVEX encoded versions)

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

VBROADCASTI128 (VEX.256 encoded version)

temp := SRC[127:0]
DEST[127:0] := temp
DEST[255:128] := temp
DEST[MAXVL-1:256] := 0

VBROADCASTI32X4 (EVEX encoded versions)

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

VBROADCASTI64X2 (EVEX encoded versions)

(KL, VL) = (8, 256), (16, 512)
FOR j := 0 TO KL-1
    i := j * 64
    n := (j modulo 2) * 64
    IF k1[j] OR *no writemask*
        THEN DEST[i+63:i] := SRC[n+63:n]
        ELSE
            IF *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 := 0 TO 15
    i := j * 32
    n := (j modulo 8) * 32
    IF k1[j] OR *no writemask*
        THEN DEST[i+31:i] := SRC[n+31:n]
        ELSE
            IF *merging-masking*
                        ; merging-masking
                THEN *DEST[i+31:i] remains unchanged*
                ELSE
                        ; zeroing-masking
                    DEST[i+31:i] := 0
            FI
    FI;
ENDFOR
DEST[MAXVL-1:VL] := 0

VBROADCASTI64X4 (EVEX.512 encoded version)

FOR j := 0 TO 7
    i := j * 64
    n := (j modulo 4) * 64
    IF k1[j] OR *no writemask*
        THEN DEST[i+63:i] := SRC[n+63:n]
        ELSE
            IF *merging-masking*
                THEN *DEST[i+63:i] remains unchanged*
                ELSE ; zeroing-masking
                    DEST[i+63:i] := 0
            FI
    FI;
ENDFOR
DEST[MAXVL-1:VL] := 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_broadcast_i32x2(__m128i a);

VBROADCASTI32x2 __m128i _mm_mask_broadcast_i32x2(__m128i s, __mmask8 k, __m128i a);

VBROADCASTI32x2 __m128i _mm_maskz_broadcast_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 Table 2-23, “Type 6 Class Exception Conditions.”

EVEX-encoded instructions, syntax with reg/mem operand, see Table 2-53, “Type E6 Class Exception Conditions.”

Additionally:

#UD If VEX.L = 0 for VPBROADCASTQ, VPBROADCASTI128.
If EVEX.L’L = 0 for VBROADCASTI32X4/VBROADCASTI64X2.
If EVEX.L’L < 10b for VBROADCASTI32X8/VBROADCASTI64X4.