Encoding:

POOL32S

010110

rt

rs

rd

0

00

DSRLV

001010000

6

5

5

5

2

9

Format:

DSRLV rd, rt, rs

microMIPS64

Doubleword Shift Right Logical Variable

Purpose:

Doubleword Shift Right Logical Variable

To execute a logical right-shift of a doubleword by a variable number of bits

Description:

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

The 64-bit 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 63 is specified by the low-order 6 bits in GPR rs.

Restrictions:

Operation:

s        = GPR[rs]5..0
GPR[rd]   = 0s  || GPR[rt]63..s

Exceptions:

Reserved Instruction