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VSHR (by immediate)

Vector Shift Right by immediate value.

Syntax

VSHR{cond}.datatype {Qd}, Qm, #imm

VSHR{cond}.datatype {Dd}, Dm, #imm

where:

cond

is an optional condition code.

datatype

must be one of S8, S16, S32, S64, U8, U16, U32, or U64.

Qd, Qm

are the destination vector and the operand vector, for a quadword operation.

Dd, Dm

are the destination vector and the operand vector, for a doubleword operation.

imm

is the immediate value specifying the size of the shift. The ranges are shown in the following table:

Table 14-22 Available immediate ranges in VSHR (by immediate)

datatype imm range
or U8 0 to 8
S16 or U16 0 to 16
S32 or U32 0 to 32
S64 or U64 0 to 64

VSHR with an immediate value of zero is a pseudo-instruction for VORR.

Operation

VSHR takes each element in a vector, right shifts them by an immediate value, and places the results in the destination vector. The results are truncated.

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