IBM PPC440X5 Uživatelský manuál stáhnout pdf (Strana 257)

Add Extended

Preliminary PPC440x5 CPU Core User’s Manual

instrset.fm.

September 12, 2002 Page 257 of 589

Add Extended

(RT) ← (RA) + (RB) + XER[CA]

if (RA) + (RB) + XER[CA] 2

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

• CR[CR0] if Rc contains 1

• XER[SO, OV] if OE contains 1

adde RT, RA, RB OE= 0, Rc= 0

adde. RT, RA, RB OE= 0, Rc= 1

addeo RT, RA, RB OE= 1, Rc= 0

addeo. RT, RA, RB OE =1, Rc=1

31 RT RA RB OE 138 Rc

0 6 11 16 21 22 31

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IBM PPC440X5 Uživatelský manuál Strana 257