What is subroutine instructions?

Subroutine instructions are a set of instructions in programming that allow a program to execute a specific task or function independently from the main program flow. They enable code reusability by allowing the same block of code to be called multiple times from different parts of the program. Subroutines typically have their own parameters and can return values, making them essential for organizing and managing complex code efficiently. This modular approach improves readability and maintainability of the code.