aaa(chatgpt)

title "aaa"
.model small
.stack 100h
.data
   num1 db '9'
   num2 db '5'
   result db 0  ; Initialize result variable
.code
   mov ax, @data
   mov ds, ax

   ; Convert ASCII characters to numerical values
   sub num1, '0'  ; Convert character '9' to numerical value 9
   sub num2, '0'  ; Convert character '5' to numerical value 5

   ; Add numerical values
   mov al, num1  ; Move num1 into AL
   add al, num2  ; Add num2 to AL

   ; Store the result
   mov result, al  ; Store the result in result variable

   mov ah, 4ch    ; Exit program
   int 21h
end
*********************
  title "aaa"
.model small
.stack 100h
.data
   num1 db '9'
   num2 db '5'
   result db ?
.code
   mov ax, @data
   mov ds, ax

   ; Convert ASCII characters to binary
   mov al, num1
   sub al, '0'   ; Convert ASCII character to binary
   mov bl, num2
   sub bl, '0'   ; Convert ASCII character to binary

   ; Perform addition
   add al, bl

   ; Adjust the result using aaa
   aaa

   ; Convert result back to ASCII character
   add al, '0'   ; Convert binary to ASCII character

   ; Store the result
   mov result, al

   ; Display result (if needed)
   mov ah, 02h   ; DOS function to display character
   mov dl, al    ; Move the result to DL register
   int 21h       ; Call DOS interrupt

   ; Terminate program
   mov ah, 4Ch   ; DOS function to exit program
   int 21h       ; Call DOS interrupt
end