Discussion in "8051 Discussion Forum" started by    Nisar Ahmed    Jul 27, 2009.
Mon Jul 27 2009, 02:25 PM
#1
Hello everyone
I have a file" table.asm",I want to include with another file" main.asm".Plz help me how i call file "table.asm"in the file "main.asm".I have using Keil assembler.

Thanks in advance
Nisar Ahmed
Mon Jul 27 2009, 05:03 PM
#2
have u added the file to your source group of "main.asm"?
Mon Jul 27 2009, 07:22 PM
#3
there are rules to follow when writing distributed assembly code..
you can download the PDF document from download section regarding Assembly programming in keil.

look for the use of keyword
"extrn" and "segment code" etc.
Tue Jul 28 2009, 06:37 PM
#4
hi guys.. can any 1 post a ScreenShot of them working with multi-file (asm)..
i wana see the declarations made in main pgm and sub-pgms..
Wed Jul 29 2009, 08:39 AM
#5
Now it's ok
In" main.asm" file .I use directive #include<table.asm>

Regards
Nisar Ahmed
Wed Jul 29 2009, 09:16 PM
#6
make sure you are not getting any warnings coz that can ruin your program.

to call a routine from external asm file.. you need to declare that segment as public. i will give you an example soon..
Thu Jul 30 2009, 03:40 AM
#7
There is no any warning.
Fri Jul 31 2009, 06:54 PM
#8
here is the exact Keil example..

File: ADD.asm


;Add routine which will be called from other file
PUBLIC ADDNUM ;declare function as public

ADDNUM_ SEGMENT CODE  ;define code segment for linker
RSEG ADDNUM_ ;select segment ADDNUM

ADDNUM:  ;Our add routine
MOV R2,R1
ADD R2,R0
RET


File: Test.asm


EXTRN CODE (ADDNUM) ;define the external symbol

CSEG at 0 ;code starts at 0
MOV R0,#50  ;Some dummy instructions
MOV R1,#51
ACALL ADDNUM ;lets call this routine which is in second file


Link it and check..


[ Edited Fri Jul 31 2009, 06:56 PM ]
Tags keil assembly programmingkeil C calling label external file
Sat Aug 01 2009, 03:30 AM
#9
Thanks for help
Mon Aug 03 2009, 05:10 PM
#10
Ok i guess Ajay's example is enough to learn the multi file concept..

I have written a code of about 31KB in a notepad which includes main pgm, LCD initilizations, 3 timer configurations and settings, ADC and its lookup table, Serial intializations and its Tx and Rx, keypad routine and some more things..

Unfortunately i dont know the concept of multi file in asm formats and i have written all these in a single file with countless jumps.... Thank god its working and thanks to JTAG debugger as well...

Now i wana seperate them into individual files and add them into my project...

So i request any 1 to plz share me a project where such concept of multi files is used... so i can get a clear idea of it...

And i dont understand why multi file is required when the solo single file is working fine....

Anyways both formats jumps to specified sequence right ? Can any 1 plz explain why they insist on multifile ?


[ Edited Mon Aug 03 2009, 05:13 PM ]

Get Social

Information

Powered by e107 Forum System

Conversation

Tue Nov 29 2016, 02:49 PM
jaykumar
Dear sir, elevator microprocessor control , the vendor locked the control, pls help me how can we decode the password
Sat Nov 26 2016, 10:24 AM
manikanta B
hello i know about gsm,gps and zigbee but i dont know how to use them while programming. can anyone suggest me how to use them
ExperimenterUK
Sat Nov 19 2016, 07:09 PM
@Protaz.. Really you would be better off asking on one of the many Arduino user sites
Fri Nov 18 2016, 05:39 AM
Protaz
Hi, am new in programing, but I have few skills in electronic. I want to make an automatic timing system for institutions using arduino uno. Any one to assist me how to program the microcontoller?
Tue Nov 15 2016, 04:45 AM
Hemangi patel
hello, i am working on atmega128 board and i want to interface with sd card with using fat32 file system. i am totaly new in this field .so pls anyone can u suggest me some imp links.thanks
Thu Nov 10 2016, 01:40 PM
ajith raj
hi frds i make voice control robot using blutooth module
Wed Oct 26 2016, 08:23 AM
ishalt
is it possible to completly get the robot running from java code
Sun Oct 23 2016, 05:50 PM
mamata thakur
plz send full mini project report for ic 741&ic 555 tester
Wed Oct 19 2016, 03:30 PM
riddhi1296
can you provide an explanation for the inverter 8051 code and how it works
ExperimenterUK
Sat Oct 15 2016, 12:15 AM
@snaya. Create a thread in the 8051 forum for your questions

Downloads

Comments

Jonathan.kei
Mon Nov 21 2016, 04:30 PM
AVRuser1
Sun Nov 20 2016, 06:07 PM
JaguarPaw
Thu Nov 17 2016, 07:44 PM
PeterJohn
Mon Nov 14 2016, 05:54 PM
evigna
Wed Nov 02 2016, 02:03 PM
ozancakiroglu
Thu Oct 27 2016, 01:54 PM
[email protected]
Fri Oct 21 2016, 10:35 PM
Beliwars
Sat Oct 15 2016, 09:40 AM

Online

Guests: 39, Members: 0 ...

most ever online: 182184
(Members: , Guests: 182184) on 06 Aug 2010: 05:37 AM

Members: 37792
Newest member: Jonathan.kei
Forum Activity
Centurio Avatar
Posted By Centurio
Mon Nov 28 2016, 08:46 AM
Hi there,long time ago... i've a short question to...
kirangowle Avatar
Posted By kirangowle
Wed Nov 16 2016, 03:56 PM
Hello Forum members,After a long time i am back to...
Pratik_Suthar Avatar
Posted By Pratik_Suthar
Thu Oct 13 2016, 12:39 PM
@martin the HEX file provided in the project is no...
ajay_bhargav Avatar
Posted By ajay_bhargav
Thu Oct 06 2016, 06:15 AM
Hi Phil, Do you want to add this to existing proje...
ajay_bhargav Avatar
Posted By ajay_bhargav
Thu Oct 06 2016, 06:13 AM
CE should be high when you go for reading mode/wai...
ajay_bhargav Avatar
Posted By ajay_bhargav
Thu Oct 06 2016, 06:03 AM
You can also use ESP8266 with its SDK to write app...
ExperimenterUK Avatar
Posted By ExperimenterUK
Mon Oct 03 2016, 11:15 PM
This is an old thread and the links no longer work...
martinsnc115877 Avatar
Posted By martinsnc115877
Wed Sep 14 2016, 12:51 PM
sir, i did your led scrolling mass display, and it...
ExperimenterUK Avatar
Posted By ExperimenterUK
Fri Sep 09 2016, 11:45 PM
The Hex file for this project is a bit too big for...