Lab 3 solution

With the help of many classmates and professor, I have finally came up with the full solution to lab 3.

My solution turn out to be very long even after converting it into sudo code, I wanted to shorten it or think of another solution, but since I spend too much time on it I must shift my focus on other labs.

My method is function based, I wrap each section of the code in function form and call them for each situations

The following are sudo codes with the attempt to short the solution

Initialize settings:

Set display to zero zero

set 0 (LSD) to storage

set 0 (MSD) to storage

Loop-input:

check $ff (which is user input) for +/- input

compare for + input

Jmp to + subroutine

compare for – input

Jmp to – subroutine

clear $ff

Infinite loop: Loop-input

Check/draw:

Cmp MSD with each of the 10 digites and draw based on each compared

Cmp LSD with each of the 10 digites and draw based on each compared

Return from subroutine

++: Cmp LSD if 9 Jmp to + Return from subroutine Increment LSD Set LSD to 0 Jmp to check/draw Return from subroutine	--: Cmp LSD if 0 Jmp to – Return from subroutine Decrement LSD Set MSD to 0 Jmp to check/draw Return from subroutine
+: Cmp MSDif 9 Jmp to ++ Return from subroutine Increment MSD Jmp check/draw Return from subroutine	-: Cmp MSD if 0 Jmp to – Return from subroutine Decrement MSD Jmp to check/draw Return from subroutine

Digit 0-9

Create each of 10 single digits with DCB

Match each with a storage number of its graphic represented