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9-142 PPC405 Core User’s Manual
ori
OR Immediate
ori
OR Immediate
(RA) ← (RS) ∨ (
16
0||IM)
The IM field is extended to 32 bits by concatenating 16 0-bits on the left. Register RS is ORed with the
extended IM field; the result is placed into register RA.
Registers Altered
•RA
Architecture Note
This instruction is part of the PowerPC User Instruction Set Architecture.
ori RA, RS, IM
24 RS RA IM
0 6 11 16 31
Table 9-26. Extended Mnemonics for ori
Mnemonic Operands Function
Other Registers
Changed
nop Preferred no-op; triggers optimizations based on
no-ops.
Extended mnemonic for
ori 0,0,0