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9-140 PPC405 Core User’s Manual
or
OR
or
OR
(RA) ← (RS) ∨ (RB)
The contents of register RS is ORed with the contents of register RB; the result is placed into register
RA.
Registers Altered
•RA
• CR[CR0]
LT, GT, EQ, SO
if Rc contains 1
Architecture Note
This instruction is part of the PowerPC User Instruction Set Architecture.
or RA, RS, RB Rc=0
or. RA, RS, RB Rc=1
31 RS RA RB 444 Rc
0 6 11 16 21 31
Table 9-25. Extended Mnemonics for or, or.
Mnemonic Operands Function
Other Registers
Altered
mr RT, RS Move register.
(RT)
← (RS)
Extended mnemonic for
or RT,RS,RS
mr.
Extended mnemonic for
or. RT,RS,RS
CR[CR0]