DCPU16 27
[COAL] XOR Guest on 18th December 2020 12:42:40 PM
  1. ;; AND can be used to clear bit or number bits  
  2. ;; OR can be used to set bit, set 1  
  3. ;; NOT - invert whole
  4. ;; XOR - invert single bits
  5. .model small
  6. .stack 100h
  7. .data
  8. .code
  9. main proc
  10.     L1:
  11.     mov ah,1
  12.     int 21h
  13.    
  14.     XOR al,00100000b        ;; to convert to upper case
  15.     mov dl,al
  16.     mov ah,2
  17.     int 21h
  18.     jmp L1
  19.    
  20.    
  21.     mov ah,4ch
  22.     int 21h
  23.    
  24.    
  25.    
  26.     main endp
  27. end main

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