Skip to main content

ASCENDING AND DESCENDING SORT

 ;Program to arrange series of 32bit numbers in ascending or descending order
 AREA data1,data,readonly
 DCD 0x12,0x13,0x18,0x674
 AREA data2,data
 SPACE 4
 AREA prog,code,readonly
 ENTRY
 mov r3,#4
 ldr r0,=data1
 ldr r1,=data2
top ldr r2,[r0],#4
 str r2,[r1],#4
 subs r3,#1
 bne top
 mov r5,#3
olop ldr r0,=data2
 mov r6,r5
up ldr r1,[r0],#4
 ldr r2,[r0]
 cmp r1,r2
 bcc skp ;replace bcc with bhi for descending sorting
 str r1,[r0],#-4
 str r2,[r0],#4
skp subs r6,#1
 bne up
 subs r5,#1
 bne olop
s b s
 END

Labels:

Comments

Post a Comment

Popular posts from this blog

"Swift" from Programming Template

About Memory: 1. How do I get memory, i.e how are variables declared. Any specific facts and constrains about variables ? If type annotation like var Varb:Float ; is not used then it is mandatory to assign the initial value to the variable. "Var" keyword should get you the required memory. 2. How do we get the entry point for the program execution ? [ Example : main() in the C program ] Script based. There is no particular entry point. 3. How does dynamic memory handled ? Is it supported in first place ? Instances for the classes can be created. Automatic Reference counting mechanism has the strong reference to one of the variable. Till there is strong reference to the variable it'll be there in the memory. Once there is no strong reference it'll be de-initialized. [ Ref : https://developer.apple.com/library/content/documentation/Swift/Conceptual/Swift_Programming_Language/AutomaticReferenceCounting.html ] 4. What are the datatypes which are supported an...
Post a Comment
Read more

Procedure to enable wireless LAN adapter in vmware!

I have went to find the way in which wlan in Kali Linux could be made listed my airmon-ng command. Most of the videos and posts suggested me that it is necessary to have another wi-fi adapter to have connected to wifi network. But this is not necessary. The procedure to do this is as follows: 1. Download this package in Virtual Machine(Kali linux) " http://wireless.kernel.org/download/compat-wireless-2.6/compat-wireless-2010-06-26-p.tar.bz2" 2.Unzip this package in terminal i.e navigate to place where you have downloaded this file , say desktop then type : cd Desktop for unzip type : tar -jxvf compat-wireless-2010-06-26-p.tar.bz2 3. Navigate into the uncompressed directory and type: i."make unload"  (only words within the quotes are the commands) ii."make load" Done!  now airmon-ng  should have the list of the required devices.
2 comments
Read more

Python Crash Course : Part 1

HISTORY :  Written by Guido Van Rossum in 1980s, i.e Guido started writing Python in 1989 December. Van Rossum is Python's principal author, and his continuing central role in deciding the direction of Python is reflected in the title given to him by the Python community,  benevolent dictator for life  (BDFL). INSTALLING PYTHON :  The python interpreted which can be downloaded from website www.python.org (https://www.python.org/download/releases) CHECKING SUCCESSFUL INSTALL : Open command prompt. Type " assoc .py " , without quotes. That should return ".py=Python.File Cool ! Up and Running to write the scripts !
1 comment
Read more