https://github.com/ebodshojaei/calculator-in-c

Basic calculator in C that operates on integer operands based on user input.
https://github.com/ebodshojaei/calculator-in-c

asm assembly c

Last synced: 30 days ago
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Basic calculator in C that operates on integer operands based on user input.

• Host: GitHub
• URL: https://github.com/ebodshojaei/calculator-in-c
• Owner: EbodShojaei
• Created: 2023-10-31T17:57:54.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2023-11-01T04:33:12.000Z (over 1 year ago)
• Last Synced: 2024-11-15T08:20:58.594Z (3 months ago)
• Topics: asm, assembly, c
• Language: Assembly
• Homepage:
• Size: 13.7 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Calculator in C 

## About

Basic calculator in C that operates on integer operands based on user input. 

 - Includes functions for simple operations (i.e., addition, subtraction, multiplication, and division).  

 - Error handles invalid inputs (e.g., non-numeric, divide-by-0).

 - Accepts user input for operands and operation.

**Note:** *Repository includes C and assembly source files.*

## How to Run C Code

    // First command generates executable.

    // Second command runs executable.

    gcc calculator.c -o calculator.o

    ./calculator.o

## How to Run Assembly Code

### Extended ASM (current)

    // Converts to extended assembly syntax using GCC (current).

    //

    // First command disassembles C into extended assembly syntax with GCC. 

    // Second command generates executable.

    // Third command runs executable.

    //

    // **NOTE: for syntax @see https://www.felixcloutier.com/documents/gcc-asm.html

    // **NOTE: for -pie @see https://stackoverflow.com/a/30426603/22279004

    // **NOTE: -S disassembles C code into extended assembly syntax (does not support nasm, masm, fasm, tasm)

    

    gcc -S calculator.c -o calculator.s

    gcc -o calculator calculator.s -pie

    ./calculator

    

  ### NASM (deprecated)

    

    // Compiles and executes assembly in NASM syntax (deprecated).

    //

    // First command assembles NASM (Netwide Assembler).

    // Second command generates executable.

    // Third command runs executable.

    //

    // ** NOTE: -felf64 specifies the output format as ELF64 (Executable and Linkable Format for 64-bit architectures).

    

    nasm -felf64 Calculator2.asm

    ld Calculator2.o -o Calculator2

    ./Calculator2