QuestionQuestion

Write a procedure named PackedToAsc that converts a 4-byte packed decimal number to a string of ASCII decimal digits. Pass the packed number to the procedure in EAX, and pass a pointer to a buffer that will hold the ASCII digits. If EAX receives a packed BCD number like DWORD 87654321h, it should return a string of ASCII digits in a buffer like "87654321" to display. For this, an array is defined as numbers DWORD 87654321h, 45346894h, 193492h, 123h, 3h
The output of ASCII buffer will be
87654321
45346894
00193492
00000123
00000003

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.code
main8stub PROC

   ; Prepare for LOOP
   mov ecx, 5; set loop variable to 5
   mov esi, OFFSET numbers ; store the start address of numbers in esi
   mov edx, OFFSET buffer ; set edx to startaddres of buffer array
L1:
   ; Prepare pointer to buffer and packed decimal number
   ; Call _PackedToAsC to convert to ASCII digits
   ; Display string of digits
   ; ...
   mov eax, [esi]; set eax to current element in numbers
   Call _PackedToAsc ; call the function
   mov edx, OFFSET buffer; prepare array for printing
   Call WriteString; ; print the string
   Call Crlf ; new line
   ; Get next number
   add esi, 4; set esi to the next element in numbers

   loop L1
   Call ReadChar; stop the execution to see the result
   Invoke ExitProcess, 0 ; exit

main8stub ENDP...

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