need some help with my code in Assembly. For my class I had to write some code a

ID: 3603897 • Letter: N

Question

need some help with my code in Assembly. For my class I had to write some code and start building off it which is all done in MASM. I was able to do most of the assignment but now I am stuck! Currently, the code asks the user for a value between 0 and 99. It then takes this number input and loops for that amount of times. The loop prints out text and then a count for how many times the progam has looped for. The program works for the most part. If I enter in 11 then it loops 11 times. However, the counter, when it prints takes the ASCII code and ends up printing symbols when it is past a count of 9. I tried slightly modifying it to accept two inputs of a single digit and combine them, but then I got lost trying to incement the count.

Long story short, how do I modify my code to not print in ASCII but rather print the numbers from 0 - 99. Like I said, the code works and loops correctly, I just can't get it to print correctly. My current code is below:

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cseg segment 'code'
assume cs:cseg, ds:cseg, ss:cseg, es:cseg

org 100h

start:   mov dx, offset Intro
           mov ah, 09
  .        int 21h

mov dx, offset Prompt
int 21h

read:   mov ah, 1
           int 21h
           mov cl, 0ah
           sub al, 30h
           mul cl
           mov bl, al
           mov ah, 1
           int 21h
           sub al, 30h
           add bl, al

mov ch, 0

again:   mov dx, offset Hello
           mov ah, 09
           int 21h

           mov dx, offset Num_msg
           int 21h
           inc byte ptr Num_msg

           inc ch
           cmp ch, bl
           jl again

done:   mov Num_msg, 30h
           mov ah, 4ch
           int 20h

org 200h

Intro   db "Insert name here", 0ah, 0ah, 0dh, "$"
Hello   db "Hello World", 20h, 20h, "$"
Prompt   db "Enter a number between 1 and 99:", 20h, 20h, 0ah, 0dh, "$"

Num_msg db 30h, 13, 10, "$"

cseg ends
end start

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Currently this is what it outputs to the screen:

Insert name here

Enter a number between 1 and 99:
15Hello World 0
Hello World 1
Hello World 2
Hello World 3
Hello World 4
Hello World 5
Hello World 6
Hello World 7
Hello World 8
Hello World 9
Hello World :
Hello World ;
Hello World <
Hello World =
Hello World >

Explanation / Answer