title: Assembly (masm) array manipulation
body: <p>New to assembly and very stuck on how do this:</p>
  
  <p>I have a user specified array. The user inputs the length and the characters. My problem is I need move all the vowels to the beginning of the array.</p>
  
  <p>This is my current progress</p>
  
  <pre><code>INCLUDE Irvine32.inc
  
  .data
  
          ProgInfo BYTE " ",0Ah
                   BYTE "------------------------------------------------------",0Ah
                   BYTE "This program will reorder an array of characters",0Ah
                   BYTE "all vowels will be moved to the beginning of the array",0Ah
                   BYTE "------------------------------------------------------",0Ah
                   BYTE " ",0
          Prompt1 BYTE "Please enter the number of characters to be inputed: ",0
          NChars   DWORD ?    ;Unitialized for user input
          myarray  BYTE ? 
  
          Prompt2 BYTE "Please enter a string of characters: ",0
          Reordered BYTE " ",0Ah
                   BYTE "The reordered array is: ",0
  
  .code
  main PROC
              mov edx, OFFSET ProgInfo      
              call WriteString
  
              mov edx, OFFSET Prompt1  ;ask for total characters
              call WriteString
  
              call ReadInt             ;read as integer
              mov Nchar, eax                  
  
              mov edx, OFFSET Prompt2     ;ask for the string of characters
              call WriteString            
  
              mov edx, OFFSET myarray
              mov ecx, NChars     
              call ReadString
  
  exit
  main ENDP
  END main
  </code></pre>
  
  <p>considering using something similar to this to check for vowels in loop as it goes through the array</p>
  
  <pre><code>VowelCheck:
  cmp myarray[edi],'a'
  je isVowel
  cmp myarray[edi],'A'
  je isVowel
  cmp myarray[edi],'e'
  je isVowel
  cmp myarray[edi],'E'
  je isVowel
  cmp myarray[edi],'i'
  je isVowel
  cmp myarray[edi],'I'
  je isVowel
  cmp myarray[edi],'o'
  je isVowel
  cmp myarray[edi],'O'
  je isVowel
  cmp myarray[edi],'u'
  je isVowel
  cmp myarray[edi],'U'
  je isVowel
  </code></pre>