Write a program in Assembly for the PIC$16$F$84$A that generates an output sequence to control a stepper motor. The output sequence to generate is:

$0001$

; wait for a certain amount of time

$0010$

; wait for a certain amount of time

$0100$

; wait for a certain amount of time

$1000$

; wait for a certain amount of time

; Repeat

The outputs are on pins $4$ to $7$ in PortB.

Write the program by ensuring that the waiting after each bit pattern is included.

Provide a screenshot showing the code and the correct execution with different values of PortB.