ARM Compiler armasm User Guide : 14.68 VMOV (between an ARM register and an Advanced SIMD scalar)

14.68 VMOV (between an ARM register and an Advanced SIMD scalar)

Transfer contents between an ARM register and an Advanced SIMD scalar.

Syntax

VMOV{cond}{.size} Dn[x], Rd

VMOV{cond}{.datatype} Rd, Dn[x]

where:

cond: is an optional condition code.
size: the data size. Can be 8, 16, or 32. If omitted, size is 32.
datatype: the data type. Can be U8, S8, U16, S16, or 32. If omitted, datatype is 32.
Dn[x]: is the Advanced SIMD scalar.
Rd: is the ARM register. Rd must not be PC.

Operation

VMOV Dn[x], Rd transfers the contents of the least significant byte, halfword, or word of Rd into Dn[x].

VMOV Rd, Dn[x] transfers the contents of Dn[x] into the least significant byte, halfword, or word of Rd. The remaining bits of Rd are either zero or sign extended.

Related concepts

9.15 Advanced SIMD scalars

9.10 Advanced SIMD data types in A32/T32 instructions

Related reference

7.11 Condition code suffixes

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