Unsigned maximum with immediate (unpredicated).
Determine the unsigned maximum of an immediate and each element of the source vector, and destructively place the results in the corresponding elements of the source vector. The immediate is an unsigned 8-bit value in the range 0 to 255, inclusive. This instruction is unpredicated.
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 |
0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | size | 1 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | imm8 | Zdn |
if !HaveSVE() then UNDEFINED; integer esize = 8 << UInt(size); integer dn = UInt(Zdn); boolean unsigned = TRUE; integer imm = Int(imm8, unsigned);
<Zdn> |
Is the name of the source and destination scalable vector register, encoded in the "Zdn" field. |
<T> |
Is the size specifier,
encoded in
size:
|
<imm> |
Is the unsigned immediate operand, in the range 0 to 255, encoded in the "imm8" field. |
CheckSVEEnabled(); integer elements = VL DIV esize; bits(VL) operand1 = Z[dn]; bits(VL) result; for e = 0 to elements-1 integer element1 = Int(Elem[operand1, e, esize], unsigned); Elem[result, e, esize] = Max(element1, imm)<esize-1:0>; Z[dn] = result;
If PSTATE.DIT is 1:
This instruction might be immediately preceded in program order by a MOVPRFX instruction that conforms to all of the following requirements, otherwise the behavior of either or both instructions is unpredictable:
Internal version only: isa v30.44, AdvSIMD v27.08, pseudocode v8.5-2019-06_rc2-5-g22901f2, sve v2019-06_rc4 ; Build timestamp: 2019-06-26T22:30
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