(old) | htmldiff from- | (new) |
Unsigned saturating increment scalar by count of true predicate elementselements.
Counts the number of true elements in the source predicate and then uses the result to increment the scalar destination. The result is saturated to the general-purpose register's unsigned integer range.
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Counts the number of true elements in the source predicate and then uses the result to increment the scalar destination. The result is saturated to the general-purpose register's unsigned integer range.
It has encodings from 2 classes: 32-bit and 64-bit
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 | 0 | 0 | 0 | 1 | 0 | 0 | Pm | Rdn | ||||||||
D | U | sf |
if !HaveSVE() then UNDEFINED; integer esize = 8 << UInt(size); integer m = UInt(Pm); integer dn = UInt(Rdn); boolean unsigned = TRUE; integer ssize = 32;
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 | 0 | 0 | 0 | 1 | 1 | 0 | Pm | Rdn | ||||||||
D | U | sf |
if !HaveSVE() then UNDEFINED; integer esize = 8 << UInt(size); integer m = UInt(Pm); integer dn = UInt(Rdn); boolean unsigned = TRUE; integer ssize = 64;
<Wdn> | Is the 32-bit name of the source and destination general-purpose register, encoded in the "Rdn" field. |
<Xdn> | Is the 64-bit name of the source and destination general-purpose register, encoded in the "Rdn" field. |
<Pm> | Is the name of the source scalable predicate register, encoded in the "Pm" field. |
<T> | Is the size specifier,
encoded in
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CheckSVEEnabled(); integer elements = VL DIV esize; bits(ssize) operand1 = X[dn]; bits(PL) operand2 = P[m]; bits(ssize) result; integer count = 0; for e = 0 to elements-1 if ElemP[operand2, e, esize] == '1' then count = count + 1; integer element = Int(operand1, unsigned); (result, -) = SatQ(element + count, ssize, unsigned); X[dn] = Extend(result, 64, unsigned);
Internal version only: isa v32.12v32.06, AdvSIMD v29.04, pseudocode v2020-09_xmlv2020-06_rel, sve v2020-09_rc3v2020-06_rel0
; Build timestamp: 2020-11-18T172020-07-03T12:2342
Copyright © 2010-2020 Arm Limited or its affiliates. All rights reserved. This document is Non-Confidential.
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