AMCC PPC405 - Page 285

AMCC Proprietary 285
Revision 1.02 - September 10, 2007
PPC405 Processor
neg
Negate
Preliminary User’s Manual
neg
Negate
(RT) ←¬(RA) + 1
The twos complement of the contents of register RA are placed into register RT.
Registers Altered
•RT
• CR[CR0]
LT, GT, EQ, SO
if Rc contains 1
• XER[SO, OV] if OE=1
Invalid Instruction Forms
• Reserved fields
Architecture Note
This instruction is part of the PowerPC User Instruction Set Architecture.
neg RT, RA OE=0, Rc=0
neg. RT, RA OE=0, Rc=1
nego RT, RA OE=1, Rc=0
nego. RT, RA OE=1, Rc=1
31 RT RA
OE 104 Rc
0 6 11 16 21 22 31