Altera Nios II User Manual page 266

8–86
ror
Operation:
Assembler Syntax:
Example:
Description:
Exceptions:
Instruction Type:
Instruction Fields:
31 30 29 28 27 26 25
A
Nios II Processor Reference Handbook
rC ← rA rotated right rB
4..0
ror rC, rA, rB
ror r6, r7, r8
Rotates rA right by the number of bits specified in rB
shift out of the register rotate into the most-significant bit positions. Bits 31– 5 of rB are
ignored.
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
bit positions
and stores the result in rC. The bits that
4..0
16 15 14 13 12 11 10
0x0b
Chapter 8: Instruction Set Reference
Instruction Set Reference
rotate right
9 8 7 6 5 4 3 2
0 0x3a
February 2014 Altera Corporation
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