INCP (scalar)

Increment scalar by count of true predicate elements

.

Counts the number of true elements in the source predicate and then uses the result to increment the scalar destination.

313029282726252423222120191817161514131211109876543210
00100101size1011001000100PmRdn
D

INCP <Xdn>, <Pm>.<T>

if !HaveSVE() then UNDEFINED; integer esize = 8 << UInt(size); integer m = UInt(Pm); integer dn = UInt(Rdn);

Assembler Symbols

<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 size:

size <T>
00 B
01 H
10 S
11 D

Operation

CheckSVEEnabled(); integer elements = VL DIV esize; bits(64) operand1 = X[dn]; bits(PL) operand2 = P[m]; integer count = 0; for e = 0 to elements-1 if ElemP[operand2, e, esize] == '1' then count = count + 1; X[dn] = operand1 + count;


Internal version only: isa v32.12, AdvSIMD v29.04, pseudocode v2020-09_xml, sve v2020-09_rc3 ; Build timestamp: 2020-11-18T17:23

Copyright © 2010-2020 Arm Limited or its affiliates. All rights reserved. This document is Non-Confidential.