mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 1303

• Manufacturer Part Number: mpc823rg
• Description: Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
• Manufacturer: Freescale Semiconductor, Inc

MPC823 Instruction Set—subfme
subfme
Assembler Syntax
Definition
Operation
Description
FIELD
FIELD
BIT
BIT
16
0
17
1
00000
18
2
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31
For More Information On This Product,
19
3
subfme.
subfmeo
subfmeo.
Other registers altered:
subfme
Subtract from Minus One Extended
rD
The sum ¬ (rA) + XER[CA] + (32)1 is placed into rD.
POWERPC ARCHITECTURE
20
MPC823 REFERENCE MANUAL
4
¬ (rA) + XER[CA] – 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)
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OE
21
5
LEVEL
UISA
rD,rA (OE = 0 Rc = 0)
rD,rA (OE = 0 Rc = 1)
rD,rA (OE = 1 Rc = 0)
rD,rA (OE = 1 Rc = 1)
22
6
23
7
24
D
8
25
9
SUPERVISOR
232
10
26
11
27
OPTIONAL
12
28
13
29
A
MOTOROLA
14
30
FORM
XO
RC
15
31