How does the pop and push instruction of AVR affect the value in a register? - Quora
AVR Tutorials - Assembly Subroutines
Avr Atmega Getting Started With Atmel Studio | Avr Atmega
Getting Started with MPLAB® X IDE
The AVR Microcontroller and Embedded Systems Using Assembly and C: Using Arduino Uno and Atmel Studio (Paperback) | Gallery Bookshop & Bookwinkle's Children's Books
avr-libc: A simple project
1+ Free Pop-Xt & Arduino Images - Pixabay
Debugging AVR ATMEGA code with Atmel Studio and ICE - Machina Speculatrix