Addc - IBM PPC440X5 CPU Core User Manual

addc

Add Carrying
PPC440x5 CPU Core User's Manual
addc
Add Carrying
addc RT, RA, RB
addc. RT, RA, RB
addco RT, RA, RB
addco. RT, RA, RB
31
0 6
(RT) (RA) + (RB)
32
u
if (RA) + (RB) 2 – 1 then
>
XER[CA] 1
else
XER[CA] 0
The sum of the contents of register RA and register RB 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
Page 256 of 589
OE= 0, Rc= 0
OE= 0, Rc= 1
OE= 1, Rc= 0
OE= 1, Rc= 1
RT RA
11
RB OE
16 21 22
Preliminary
10 Rc
31
instrset.fm.
September 12, 2002