Altera Nios II User Manual page 259

Chapter 8: Instruction Set Reference
Instruction Set Reference
orhi
Operation:
Assembler Syntax:
Example:
Description:
Exceptions:
Instruction Type:
Instruction Fields:
31 30 29 28 27 26 25
A
February 2014 Altera Corporation
rB ← rA | (IMM16 : 0x0000)
orhi rB, rA, IMM16
orhi r6, r7, 100
Calculates the bitwise logical OR of rA and (IMM16 : 0x0000) and stores the result in rB.
None
I
A = Register index of operand rA
B = Register index of operand rB
IMM16 = 16-bit signed immediate value
24 23 22 21 20 19 18 17
B
bitwise logical or immediate into high halfword
16 15 14 13 12 11 10
IMM16
9 8 7 6 5 4 3 2
0x34
Nios II Processor Reference Handbook
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