(old) | htmldiff from- | (new) |
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 | ||||||||||
H |
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 | ||||||||||
H |
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
|
<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 pairs =integer elements = VL DIV (esize * 2);
DIV esize;
bits(PL) operand1 = P[n];
bits(PL) operand2 = P[m];
bits(PL) result;
for p = 0 to pairs - 1bits(
ElemPL[result, p, esize DIV 8] = Elem[operand1, 2*p+part, esize DIV 8];
for p = 0 to pairs - 1*2) zipped = operand2:operand1;
for e = 0 to elements-1
Elem[result, pairs+p, esize DIV 8] =[result, e, esize DIV 8] = Elem[operand2, 2*p+part, esize DIV 8];[zipped, 2*e+part, esize DIV 8];
P[d] = result;
Internal version only: isa v32.15v32.13, AdvSIMD v29.05, pseudocode v2021-03v2020-12, sve v2021-03_rc2v2020-12
; Build timestamp: 2021-03-30T212021-03-05T20:2214
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(old) | htmldiff from- | (new) |