I have to create a program using masm for windows. The program should read data from a file and store it into a 2d array, then display the column sum. I have successfully opened the file and calculated the sum but how do I display it? I am new to the language and I tried multiple ways to display my output, one of them attached below. However, my output is a register dump and not the sum.
; Convert ascii to int and store in ary
call zeroOut
lea esi, OFFSET buffer
lea edi, OFFSET ary
mov edx, cry
L1:
call convertasciitoint
mov [edi], eax
inc edi
inc esi
dec edx
call DumpRegs
cmp edx, 0
jne L1
call zeroOut
; Convert int to ascii for printing
lea esi, OFFSET ary
lea edi, OFFSET bry
mov ebx, cry
L2:
call convertinttoascii
mov [edi], eax
inc esi
inc edi
dec ebx
cmp ebx, 0
jne L2
; Print output
lea esi, OFFSET bry
call myLine
exit
main ENDP
convertasciitoint PROC
mov ecx, 0
mov eax, 0
nextDigit:
mov bl, [esi]
cmp bl, '0'
jl outOfHere
cmp bl, '9'
jg outOfHere
add bl, -30h
imul eax, 10
add eax, ebx
mov [esi], eax
mov [edi], eax
inc ecx
inc esi
inc edi
jmp nextDigit
outOfHere:
mov cnt, ecx
ret
convertasciitoint ENDP
convertinttoascii PROC
mov ecx, cnt
nextDigit:
mov al, [esi]
div TEN
mov eax, 0
mov al, dl
add al, 30h
mov [edi], dl
mov dl, [esi]
inc esi
inc edi
call DumpRegs
dec ecx
cmp ecx, 0
jne nextDigit
ret
convertinttoascii ENDP
myLine PROC
nextChar:
mov al, [esi]
inc esi
call WriteChar
cmp al, NULL
jne nextChar
ret
myLine ENDP
zeroOut PROC
mov eax, 0
mov ebx, 0
mov ecx, 0
mov edx, 0
ret
zeroOut ENDP
END main
