Altera Nios II User Manual page 271

Chapter 8: Instruction Set Reference
Instruction Set Reference
srl
Operation:
Assembler Syntax:
Example:
Description:
Usage:
Exceptions:
Instruction Type:
Instruction Fields:
31 30 29 28 27 26 25
A
February 2014 Altera Corporation
rC ← (unsigned) rA >> ((unsigned) rB
srl rC, rA, rB
srl r6, r7, r8
Shifts rA right by the number of bits specified in rB
result in rC. Bits 31–5 are ignored.
srl performs the unsigned >> operation of the C programming language.
None
R
A = Register index of operand rA
B = Register index of operand rB
C = Register index of operand rC
24 23 22 21 20 19 18 17
B C
)
4..0
(inserting zeroes), and then stores the
4..0
16 15 14 13 12 11 10 9
0x1b
shift right logical
8 7 6 5 4 3 2 1
0 0x3a
Nios II Processor Reference Handbook
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