Pic16f84a

I have no knoledge of asm code and would like for someone to write asm code for me so I can learn a bit about pic asm code I want to program four square wave frequencies into a pic16F84A chip EX: 2.2khz , 2.4khz . 2.6khz , 2.8khz and be able to select these frequencies one at a time in sequence at one second intervils and have it loop continously and have one output pin for the freuencies to come out.I know i am probally asking alot but it would be very helpful to me if someone could help do this.