Altera Nios II User Manual page 257

Chapter 8: Instruction Set Reference
Instruction Set Reference
nor
Operation:
Assembler Syntax:
Example:
Description:
Exceptions:
Instruction Type:
Instruction Fields:
31 30 29 28 27 26 25
A
February 2014 Altera Corporation
rC ← ~(rA | rB)
nor rC, rA, rB
nor r6, r7, r8
Calculates the bitwise logical NOR of rA and rB and stores the result in rC.
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
16 15 14 13 12 11 10 9
0x06
bitwise logical nor
8 7 6 5 4 3 2 1
0 0x3a
Nios II Processor Reference Handbook
8–77
0