How to use an assembler, Computer Engineering

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Q. How to use an Assembler?

Symbolic instructions which we code in assembly language is called as- Source program.

An assembler program translates source program in machine code that is called as object program.

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The steps needed to assemble and link as well as execute a program are:

Step 1: Assembly step includes translating source code in object code and producing an intermediate module or .OBJ (object file).

Assembler also creates a header instantaneously in front of produced .OBJ module; part of the header comprises information about incomplete addresses.  The .OBJ module isn't quite in executable form.  

Step 2: The link step involves converting the .OBJ module to an .EXE machine code module.  Linker's tasksinvolves completing any address left open by assembler in addition to combining separately assembled programs in one executable module.


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