Computer Stuff Kit Tricks: Assembling and 8051 program

What is assembling and running an 8051 program?

Now that the basic or primary form of an Assembly language program has been given, the next question is: How it is created or generates, assembled, and made ready to run? The steps to create an executable or program Assemblylanguage program are outlined as follows.

8051 C program, c coding, assembling program

Assembling and 8051 program image-1

1. First we use a computer program enabling the user to enter or editor to type in a program. Many outstanding or excellent editors or word processors are accessible or available that can be used to create and/or edit the program. A widely or range used editor is the MS-DOS EDIT program (or Notepad in Windows), which comes or near with all Microsoft operating systems.

For many assemblers, the file names follow the usual or habitual DOS conventions or compact, but the source or origin file has the extension or addition “asm” or “src”, depending or be controlled on which assembler you are using. Check your assembler for the convention or a way in which something is usually done.

2. The assembler converts or changes the instructions into machine code. The assembler will produce or build an object file and a list file.

3. Assemblers require or need a third step called linking. The link program takes or gets hold of one or more object files and produces or builds an absolute object file with the extension or addition “abs”. This abs file is used by 8051 trainers or instructor that has a monitor or detector program.

More about “asm” and “obj” files

The “asm” file is also called the source or origin file and for this reason or cause some assemblers require that this file have the “src” extension.

Check your 8051 assembler or a program for converting instructions to see which extension it requires. As mentioned or bring up earlier, this file is created or produce with an editor such as DOS EDIT or Windows Notepad. In addition to creating or produce the object file, the assembler also produces the 1^st file (list file).