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Download IBM PPC440X5 User's Manual
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adde Add Extended PPC440x5 CPU Core User’s Manual Preliminary adde Add Extended adde adde. addeo addeo. RT, RA, RB RT, RA, RB RT, RA, RB RT, RA, RB 31 0 OE= 0, Rc= 0 OE= 0, Rc= 1 OE= 1, Rc= 0 OE =1, Rc=1 RT 6 RA 11 RB 16 OE 138 Rc 21 22 31 (RT) ← (RA) + (RB) + XER[CA] if (RA) + (RB) + XER[CA] >u 232 – 1 then XER[CA] ← 1 else XER[CA] ← 0 The sum of the contents of register RA, register RB, and XER[CA] is placed into register RT. XER[CA] is set to a value determined by the unsigned magnitude of the result of the add operation. Registers Altered • RT • XER[CA] • CR[CR0] if Rc contains 1 • XER[SO, OV] if OE contains 1 instrset.fm. September 12, 2002 Page 257 of 589
