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ARM Compiler armasm User Guide : UMOV (vector)

UMOV (vector)

Unsigned move vector element to general-purpose register.

This instruction is used by the alias MOV (to general).

Syntax

UMOV Wd, Vn.Ts[index] ; 32-bit

UMOV Xd, Vn.Ts[index] ; 64-bit

Where:

Wd

Is the 32-bit name of the general-purpose destination register.

Ts

Is an element size specifier:

32-bit

Can be one of B, H or S.

64-bit

Must be D.

index

The value depends on the instruction variant:

32-bit
Is the element index, in the range shown in Usage.
64-bit
Is the element index
Xd

Is the 64-bit name of the general-purpose destination register.

Vn

Is the name of the SIMD and FP source register.

Usage

The following table shows the valid specifier combinations:

Table 20-101 UMOV (32-bit) specifier combinations

Ts index
B to 15
H 0 to 7
S 0 to 3
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