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FMOV (zero, predicated)

Move floating-point +0.0 to vector elements (predicated).

Move floating-point constant +0.0 to to each active element in the destination vector. Inactive elements in the destination vector register remain unmodified.

This is a pseudo-instruction of CPY (immediate, merging). This means:

  • The encodings in this description are named to match the encodings of CPY (immediate, merging).
  • The assembler syntax is used only for assembly, and is not used on disassembly.
  • The description of CPY (immediate, merging) gives the operational pseudocode for this instruction.

313029282726252423222120191817161514131211109876543210
00000101size01Pg01000000000Zd
shimm8

SVE

FMOV <Zd>.<T>, <Pg>/M, #0.0

is equivalent to

CPY <Zd>.<T>, <Pg>/M, #0

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 RESERVED
01 H
10 S
11 D
<Pg>

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

Operation

The description of CPY (immediate, merging) gives the operational pseudocode for this instruction.

Operational information

This instruction might be immediately preceded in program order by a MOVPRFX instruction that conforms to all of the following requirements, otherwise the behavior of either or both instructions is unpredictable:

  • The MOVPRFX instruction must specify the same destination register as this instruction.
  • The destination register must not refer to architectural register state referenced by any other source operand register of this instruction.
The MOVPRFX instructions that can be used with this instruction are as follows:
  • An unpredicated MOVPRFX instruction.
  • A predicated MOVPRFX instruction using the same governing predicate register and source element size as this instruction.