MOV (scalar, predicated)

Move general-purpose register to vector elements (predicated)

Move the general-purpose scalar source register to each active element in the destination vector. Inactive elements in the destination vector register remain unmodified.

This is an alias of CPY (scalar). This means:

313029282726252423222120191817161514131211109876543210
00000101size101000101PgRnZd

MOV <Zd>.<T>, <Pg>/M, <R><n|SP>

is equivalent to

CPY <Zd>.<T>, <Pg>/M, <R><n|SP>

and is always the preferred disassembly.

Assembler Symbols

<Zd>

Is the name of the destination scalable vector register, encoded in the "Zd" field.

<T>

Is the size specifier, encoded in size:

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

Is the name of the governing scalable predicate register P0-P7, encoded in the "Pg" field.

<R>

Is a width specifier, encoded in size:

size <R>
01 W
x0 W
11 X
<n|SP>

Is the number [0-30] of the general-purpose source register or the name SP (31), encoded in the "Rn" field.

Operation

The description of CPY (scalar) gives the operational pseudocode for this instruction.

Operational information

If FEAT_SVE2 is implemented or FEAT_SME is implemented, then if PSTATE.DIT is 1:

This instruction might be immediately preceded in program order by a MOVPRFX instruction. The MOVPRFX must conform to all of the following requirements, otherwise the behavior of the MOVPRFX and this instruction is constrained unpredictable:


Internal version only: aarchmrs v2024-03_relA, pseudocode v2024-03_rel, sve v2024-03_rel ; Build timestamp: 2024-03-26T09:45

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