mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 1300
mpc823rg
Manufacturer Part Number
mpc823rg
Description
Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MPC823RG.pdf
(1348 pages)
- Current page: 1300 of 1348
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subfc
Assembler Syntax
Definition
Operation
Description
FIELD
FIELD
BIT
BIT
16
0
17
1
18
B
2
Freescale Semiconductor, Inc.
31
subc
For More Information On This Product,
19
3
subfc.
subfco
subfco.
Other registers altered:
Simplified mnemonics:
subfc
Subtract from Carrying
rD
The sum ¬ (rA) + (rB) + 1 is placed into rD.
POWERPC ARCHITECTURE
20
MPC823 REFERENCE MANUAL
4
¬ (rA) + (rB) + 1
Condition Register (CR0 field):
Affected: LT, GT, EQ, SO (if Rc = 1)
The CR0 field may not reflect the “true” (infinitely precise)
result if overflow occurs (see XER below).
XER:
Affected: CA
Affected: SO, OV (if OE = 1)
rD,rA,rB
Go to: www.freescale.com
OE
21
5
LEVEL
UISA
rD,rA,rB (OE = 0 Rc = 0)
rD,rA,rB (OE = 0 Rc = 1)
rD,rA,rB (OE = 1 Rc = 0)
rD,rA,rB (OE = 1 Rc = 1)
22
6
23
7
equivalent to
24
D
8
25
9
SUPERVISOR
LEVEL
10
26
8
MPC823 Instruction Set—subfc
11
27
subfc
OPTIONAL
12
28
13
29
rD,rB,rA
A
14
30
FORM
XO
B-147
RC
15
31
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