Q.Mention the different steps used to write a program.

Turning an idea into code the 8051 can run passes through a fixed sequence of tool stages, from typing the source to producing the final hex file. …

[!TLDR]

Writing an 8051 program is a four-step tool chain: editor → assembler → linker → OH (object-to-hex) converter, ending in a .hex file ready to burn into ROM.

An assembly language program does not become machine code in one step; it flows through a sequence of programs (utilities), each producing a file used by the next stage:

1. Editor — first an editor (such as MS-DOS EDIT or Notepad) is used to type in the program. The editor produces an ASCII text source file that follows the usual naming conventions, with the extension .asm (or .src).
2. Assembler — the .asm source file is fed to an 8051 assembler, which converts the mnemonics into machine code. The assembler produces an object file with extension .obj and an optional list file with extension .lst (which lists all the opcodes, addresses and any errors the assembler detected). …