4.5.3 Shift Logical

Format:

SxL

Ra.rq,Rb.rq,Rc.wq

!Operate format

SxL

Ra.rq,#b.ib,Rc.wq

!Operate format

Operation:

Rc

LEFT_SHIFT(Rav, Rbv<5:0>)

!SLL

Rc

RIGHT_SHIFT(Rav, Rbv<5:0>)

!SRL

Exceptions:

 

None

 

Instruction mnemonics:

 

SLL

Shift Left Logical

SRL

Shift Right Logical

Qualifiers:

 

None

 

Description:

Register Ra is shifted logically left or right 0 to 63 bits by the count in register Rb or a literal. The result is written to register Rc. Zero bits are propagated into the vacated bit positions.

Instruction Descriptions 4–45

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Compaq ECQD2KCTE manual Shift Logical, Sll