Interleave elements from two vectors
This instruction places the two-way interleaved elements from the first and second source vectors in the corresponding elements of the two 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 | Zm | 1 | 1 | 0 | 1 | 0 | 0 | Zn | Zd | 0 | ||||||||||||
| op | |||||||||||||||||||||||||||||||
if !IsFeatureImplemented(FEAT_SME2) then EndOfDecode(Decode_UNDEF); constant integer esize = 8 << UInt(size); constant integer n = UInt(Zn); constant integer m = UInt(Zm); constant integer d = UInt(Zd:'0');
| 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 | Zm | 1 | 1 | 0 | 1 | 0 | 1 | Zn | Zd | 0 | |||||||||||
| op | |||||||||||||||||||||||||||||||
if !IsFeatureImplemented(FEAT_SME2) then EndOfDecode(Decode_UNDEF); if MaxImplementedSVL() < 256 then EndOfDecode(Decode_UNDEF); constant integer esize = 128; constant integer n = UInt(Zn); constant integer m = UInt(Zm); constant integer d = UInt(Zd:'0');
| <Zd1> |
Is the name of the first scalable vector register of the destination multi-vector group, encoded as "Zd" times 2. |
| <T> |
Is the size specifier,
encoded in
|
| <Zd2> |
Is the name of the second scalable vector register of the destination multi-vector group, encoded as "Zd" times 2 plus 1. |
| <Zn> |
Is the name of the first source scalable vector register, encoded in the "Zn" field. |
| <Zm> |
Is the name of the second source scalable vector register, encoded in the "Zm" field. |
CheckStreamingSVEEnabled(); constant integer VL = CurrentVL; if VL < esize * 2 then EndOfDecode(Decode_UNDEF); constant integer pairs = VL DIV (esize * 2); constant bits(VL) operand0 = Z[n, VL]; constant bits(VL) operand1 = Z[m, VL]; bits(VL) result; for r = 0 to 1 constant integer base = r * pairs; for p = 0 to pairs-1 Elem[result, 2*p+0, esize] = Elem[operand0, base+p, esize]; Elem[result, 2*p+1, esize] = Elem[operand1, base+p, esize]; Z[d+r, VL] = result;
This instruction is a data-independent-time instruction as described in About PSTATE.DIT.
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