UZP1, UZP2 (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.

Even

if !HaveSVE() && !HaveSME() then UNDEFINED; integer esize = 8 << UInt(size); integer n = UInt(Pn); integer m = UInt(Pm); integer d = UInt(Pd); integer part = 0;

Odd

if !HaveSVE() && !HaveSME() then UNDEFINED; integer esize = 8 << UInt(size); integer n = UInt(Pn); integer m = UInt(Pm); integer d = UInt(Pd); integer part = 1;

Assembler Symbols

<Pd>	Is the name of the destination scalable predicate register, encoded in the "Pd" field.

<T>

Is the size specifier, encoded in size:

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

<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.

Operation

CheckSVEEnabled(); integer pairs = VL DIV (esize * 2); bits(PL) operand1 = P[n]; bits(PL) operand2 = P[m]; bits(PL) result; for p = 0 to pairs - 1 Elem[result, p, esize DIV 8] = Elem[operand1, 2*p+part, esize DIV 8]; for p = 0 to pairs - 1 Elem[result, pairs+p, esize DIV 8] = Elem[operand2, 2*p+part, esize DIV 8]; P[d] = result;

Operational information

If FEAT_SVE2 is enabled or FEAT_SME is enabled, then when PSTATE.DIT is 1:

The execution time of this instruction is independent of:
- The values of the data supplied in any of its registers.
- The values of the NZCV flags.
The response of this instruction to asynchronous exceptions does not vary based on:
- The values of the data supplied in any of its registers.
- The values of the NZCV flags.

Internal version only: isa v33.11seprel, AdvSIMD v29.05, pseudocode v2021-09_rel, sve v2021-09_rc3d ; Build timestamp: 2021-10-06T11:41

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

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