mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 1184

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

cntlzw
Assembler Syntax
Definition
Operation
Description
FIELD
FIELD
BIT
BIT
16
0
17
1
00000
18
2
Freescale Semiconductor, Inc.
31
For More Information On This Product,
19
3
cntlzw.
do while n < 32
if rS[n] = 1 then leave
n
rA
rS is placed into rA. This number ranges from 0 to 32, inclusive.
Other registers altered:
cntlzw
Count Leading Zeros Word
n
A count of the number of consecutive zero bits starting at bit 0 of
POWERPC ARCHITECTURE
20
MPC823 REFERENCE MANUAL
4
n + 1
0
n
Condition Register (CR0 field):
Affected: LT, GT, EQ, SO(if Rc = 1)
If Rc = 1, then LT is cleared in the CR0 field.
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21
5
LEVEL
UISA
rA,rS (Rc = 0)
rA,rS (Rc = 1)
22
6
23
7
24
S
8
25
9
SUPERVISOR
26
LEVEL
10
26
MPC823 Instruction Set—cntlzw
11
27
OPTIONAL
12
28
13
29
A
14
30
FORM
X
B-31
RC
15
31