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MOV (element)

Move vector element to another vector element

This instruction copies the vector element of the source SIMD&FP register to the specified vector element of the destination SIMD&FP register.

This instruction can insert data into individual elements within a SIMD&FP register without clearing the remaining bits to zero.

Depending on the settings in the CPACR_EL1, CPTR_EL2, and CPTR_EL3 registers, and the current Security state and Exception level, an attempt to execute the instruction might be trapped.

This is an alias of INS (element). This means:

Advanced SIMD

(FEAT_AdvSIMD)

313029282726252423222120191817161514131211109876543210
01101110000imm50imm41RnRd
Qop

Encoding

MOV <Vd>.<Ts>[<index1>], <Vn>.<Ts>[<index2>]

is equivalent to

INS <Vd>.<Ts>[<index1>], <Vn>.<Ts>[<index2>]

and is always the preferred disassembly.

Assembler Symbols

<Vd>

Is the name of the SIMD&FP destination register, encoded in the "Rd" field.

<Ts>

Is an element size specifier, encoded in imm5:

imm5 <Ts>
x0000 RESERVED
xxxx1 B
xxx10 H
xx100 S
x1000 D
<index1>

Is the destination element index encoded in imm5:

imm5 <index1>
x0000 RESERVED
xxxx1 UInt(imm5<4:1>)
xxx10 UInt(imm5<4:2>)
xx100 UInt(imm5<4:3>)
x1000 UInt(imm5<4>)
<Vn>

Is the name of the SIMD&FP source register, encoded in the "Rn" field.

<index2>

Is the source element index encoded in imm5:imm4:

imm5 <index2>
x0000 RESERVED
xxxx1 UInt(imm4)
xxx10 UInt(imm4<3:1>)
xx100 UInt(imm4<3:2>)
x1000 UInt(imm4<3>)
Unspecified bits in "imm4" are ignored but should be set to zero by an assembler.

Operation

The description of INS (element) gives the operational pseudocode for this instruction.