Assembly Codes [Nasm]

Some Assembly x86 codes with NASM.

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NASM Syscall Documentation

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Installation

1. Clone the Repository:

(or Download and Extract a zip HERE)

git clone https://github.com/GabriOliv/assembly-nasm-codes.git

2. Install NASM:

• If in Ubuntu 18.04:

  sudo apt update
  sudo apt install nasm

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Compilation

Use the script .sh

1. Give Permission

   chmod +x compile_asm.sh

2. Run the script .sh (without ".asm")

   ./compile_asm Script_Name

3. Run the Assembly Script .exe

   ./Script_Name.exe

Use the Default Commands

1. mount

   nasm -f elf64 program.asm

2. link

   ld program.o -o program

3. execute

   ./program

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List of Scripts

Listing of Scripts in this Repository

Scripts (.asm)	Description	Programming
001_Nothing	Simple Script	Simple System Call (mov, int)
002_Output_Msg	Static Text Output	Use of static section (section .data)
003_Input_Msg	Return user input on the screen	Text Entry Using Buffers (section .bss)
004_Jump_Flag	Return Even or Odd	Compare (cmp), Jump (jmp) and Labels
005_Subroutines	Return Even or Odd	Subroutine call (call)
006_Macro_Intern	Return Even or Odd	Macro inside the same file (% macro)
007_0_Macro_Extern	Return Even or Odd	Macro call external to the file (% include)
007_1_Macro_Lib	Macro Library	Macro Library called by the Script "007_0_Macro_Extern"
008_Input_Validation	Sum of Two Numbers	Input Validation using Stack (push, pop)
009_Open_File	Return File Contents	Syscall 5 (open)
010_Write_File	Save user input inside the File	Syscall 8 (creat)
011_Copy_File	Copy data from one file to another	---
012_Uppercase	Uppercase Input Text	Using Macros in Library
013_Lowercase	LowerCase Input Text	Using Macros in Library
014_Change_Letter_Case	Input Text in Upper and Lower Case	Include from Macro