Interleave elements from four vectors
This instruction places the four-way interleaved elements from the four source vectors in the corresponding elements of the four destination vectors.
This instruction is unpredicated.
It has encodings from 2 classes: 8-bit to 64-bit elements and 128-bit element
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | size | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | Zn | 0 | 0 | Zd | 0 | 0 | |||||
| op | |||||||||||||||||||||||||||||||
if !IsFeatureImplemented(FEAT_SME2) then EndOfDecode(Decode_UNDEF); end; if size == '11' && MaxImplementedSVL() < 256 then EndOfDecode(Decode_UNDEF); end; let esize : integer{} = 8 << UInt(size); let n : integer = UInt(Zn::'00'); let d : integer = UInt(Zd::'00');
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | Zn | 0 | 0 | Zd | 0 | 0 | ||||
| op | |||||||||||||||||||||||||||||||
if !IsFeatureImplemented(FEAT_SME2) then EndOfDecode(Decode_UNDEF); end; if MaxImplementedSVL() < 512 then EndOfDecode(Decode_UNDEF); end; let esize : integer{} = 128; let n : integer = UInt(Zn::'00'); let d : integer = UInt(Zd::'00');
| <Zd1> |
Is the name of the first scalable vector register of the destination multi-vector group, encoded as "Zd" times 4. |
| <T> |
Is the size specifier,
encoded in
|
| <Zd4> |
Is the name of the fourth scalable vector register of the destination multi-vector group, encoded as "Zd" times 4 plus 3. |
| <Zn1> |
Is the name of the first scalable vector register of the source multi-vector group, encoded as "Zn" times 4. |
| <Zn4> |
Is the name of the fourth scalable vector register of the source multi-vector group, encoded as "Zn" times 4 plus 3. |
CheckStreamingSVEEnabled(); let VL : integer{} = CurrentVL(); if VL < esize * 4 then EndOfDecode(Decode_UNDEF); end; let quads : integer = VL DIV (esize * 4); let operand0 : bits(VL) = Z{}(n); let operand1 : bits(VL) = Z{}(n+1); let operand2 : bits(VL) = Z{}(n+2); let operand3 : bits(VL) = Z{}(n+3); var result : bits(VL); for r = 0 to 3 do let base : integer = r * quads; for q = 0 to quads-1 do result[(4*q+0)*:esize] = operand0[(base+q)*:esize]; result[(4*q+1)*:esize] = operand1[(base+q)*:esize]; result[(4*q+2)*:esize] = operand2[(base+q)*:esize]; result[(4*q+3)*:esize] = operand3[(base+q)*:esize]; end; Z{VL}(d+r) = result; end;
This instruction is a data-independent-time instruction as described in About PSTATE.DIT.
2026-03_rel 2026-03-26 20:48:11
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