please its two eassy question, solve all of them clearly

Question I: (01 Mark) Consider the following 8051 assembly program: 1) Find the the delay in previous routine Delay, if the crystal frequency is 11.0592MHz. We suppose that MOV instruction requires 1 machine cycle and DJNZ, RET require 2 machine cycles. 2) Give the task achieved by this program. Write a program to generate a square wave of 440Hz frequency ( 50% cycle duty) on pin Pl.1. Assume that XTAL=11.0592MHz