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How to sort counted(occurrence) numbers in increasing order?

Started by xcbart, April 27, 2019, 02:23:41 PM

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xcbart

I have been given this question to create 50 random numbers from 1 to 15 and count how many times each occurred. I need to print them out in increasing order, but I couldn't. So far, I can only print out the numbers randomly with an increasing counter next to them. Any idea how I can print them out in order?

Thank you


INCLUDE Irvine32.inc
.data
blank byte " ",0

count byte 16 dup (0)
    dates dword 50 dup (?)
.code
main PROC
call randomize
mov edx, offset blank
    mov edi,0   ;count index
mov ecx,50
printnum:

    mov eax,15
    call randomRange   
    add eax,1
    call writedec
        mov dates[edi],eax;

        add edi,4;
    mov esi, eax
    inc count[esi]
        call writestring
        movzx eax,count[esi]
        call writedec
    call writestring
        mov eax,ecx

loop printnum

call crlf

exit
main ENDP
end main


jimg

How would you do it with a pencil and the list of numbers on a piece of paper?
Do it that way.
The point of the exercise is to figure out which instructions to use to do the same thing manually.

Vortex

Hi xcbart,

You can use the qsort function supplied by the MS VC run-time library. As an exercise, try to study the rand() function, the pseudorandom number generator :

https://docs.microsoft.com/en-us/previous-versions/398ax69y(v%3Dvs.140)

include qsort.inc

CompareProc PROTO C :DWORD,:DWORD

NUMB_OF_ELEMENTS equ 10

.data

numbers     dd 29,12,32,65,58,7,12,11,11,97
format1     db '%d',13,10,0

.code

start:

    invoke  crt_qsort,ADDR numbers,\
            NUMB_OF_ELEMENTS,\
            SIZEOF DWORD,ADDR CompareProc

    call    PrintArray

    invoke  ExitProcess,0
   

CompareProc PROC C arg1:DWORD,arg2:DWORD

    mov     ecx,arg1
    mov     edx,arg2
    mov     eax,DWORD PTR [ecx]
    sub     eax,DWORD PTR [edx]
    ret

CompareProc ENDP


PrintArray  PROC uses esi ebx

    mov     ebx,NUMB_OF_ELEMENTS
    mov     esi,OFFSET numbers
@@:
    invoke  crt_printf,ADDR format1,\
            DWORD PTR [esi]

    add     esi,4
    dec     ebx
    jnz     @b
    ret

PrintArray ENDP


END start