Hi I am trying to write a program that counts the number of letter in a string.
My code compiles fine but doesnt work when I run it.
My output should be "Capital letters appear x times in y"
Where x is the num (from my code) and y is (txt)
.8086 .model small .stack 100h .data txt db "A Student of Carleton University", 0dh, 0ah, "$" rslt db "Capital Letter appear x times in y", 0dh, 0ah, "$" num db ? .code main PROC MOV AX, @data MOV DS, AX MOV BX, offset txt MOV SI, 0 MOV rslt+ 33, AL CheckForDone: CMP BYTE PTR [BX+SI], 0dh JE Done CMP BYTE PTR [BX+SI], 'A' JL NEXT CMP BYTE PTR [BX+SI], 'Z' JG NEXT ADD num, 1 NEXT: ADD SI, 1 JMP CheckForDone Done: MOV AL, num MOV rslt+22, AL MOV AX, 09h MOV DX, offset rslt INT 21h Exit: MOV AX, 4C00h INT 21h main ENDP END main