Please help solve this simple Time Delay and Subroutines for assembly language. Help write the program. Thank you.

Post Lab Task Write and execute a program to count from 0 to 99 with 0.5 second delay between each count and display the counts in register R2. At the count of 99 , the counter should be reset to 00 and repeat the sequence infinitely. Write two programs: a) Using the delay within the main program. b) Using the delay as a subroutine