Concatenate even or odd elements from two predicates.
Concatenate adjacent even or odd-numbered elements from the first and second source predicates and place in elements of the destination predicate. This instruction is unpredicated.
It has encodings from 2 classes: Even and Odd
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 | 0 | 0 | 0 | 1 | 0 | 1 | size | 1 | 0 | Pm | 0 | 1 | 0 | 0 | 1 | 0 | 0 | Pn | 0 | Pd |
if !HaveSVE() then UNDEFINED; integer esize = 8 << UInt(size); integer n = UInt(Pn); integer m = UInt(Pm); integer d = UInt(Pd); integer part = 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 |
0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | size | 1 | 0 | Pm | 0 | 1 | 0 | 0 | 1 | 1 | 0 | Pn | 0 | Pd |
if !HaveSVE() then UNDEFINED; integer esize = 8 << UInt(size); integer n = UInt(Pn); integer m = UInt(Pm); integer d = UInt(Pd); integer part = 1;
<Pd> |
Is the name of the destination scalable predicate register, encoded in the "Pd" field. |
<T> |
Is the size specifier,
encoded in
size:
|
<Pn> |
Is the name of the first source scalable predicate register, encoded in the "Pn" field. |
<Pm> |
Is the name of the second source scalable predicate register, encoded in the "Pm" field. |
CheckSVEEnabled(); integer elements = VL DIV esize; bits(PL) operand1 = P[n]; bits(PL) operand2 = P[m]; bits(PL) result; bits(PL*2) zipped = operand2:operand1; for e = 0 to elements-1 Elem[result, e, esize DIV 8] = Elem[zipped, 2*e+part, esize DIV 8]; P[d] = result;
Release: 00rel5-manual
Copyright © 2010-2018 ARM Limited or its affiliates. All rights reserved. This document is Non-Confidential.