Encoding:

SPECIAL

000000

0000

R

0

rt

rd

sa

DSRL

111010

6

4

1

5

5

5

6

Format:

DSRL rd, rt, sa

MIPS64

Doubleword Shift Right Logical

Purpose:

Doubleword Shift Right Logical

To execute a logical right-shift of a doubleword by a fixed amount-0 to 31 bits.

Description:

 GPR[rd] = GPR[rt] >> sa   (logical)

The doubleword contents of GPR rt are shifted right, inserting zeros into the emptied bits; the result is placed in

GPR rd. The bit-shift amount in the range 0 to 31 is specified by sa.

Restrictions:

Operation:

s        = 0 || sa
GPR[rd]   = 0s || GPR[rt]63..s

Exceptions:

Reserved Instruction