Hi Bob, Thank you for your quick reply. The numbers are 8-bits from four ADC (so they are unsigned). I would like to write the code in MPLAB assembly language (35 instructions). The speed or memory is not very important. The memory location I called "RESULT" stores the information which tell me which number is the biggest, big, small, and smallest. For your information, the inputs of the ADCs are from four CdS photoresistor cells and basically I want to determine where the brightest or darkest spot is. Sincerely, Thomas >From: Bob Ammerman >Reply-To: pic microcontroller discussion list >To: PICLIST@MITVMA.MIT.EDU >Subject: Re: [PIC]: Compare 4 numbers method. Please help! >Date: Thu, 12 Apr 2001 12:30:02 -0400 > >ie: you need to sort these numbers. > >what language. > >how big can the numbers be? > >are they signed or unsigned? > >what is more important, speed or code space? > >Bob Ammerman >RAm Systems >(contract development of high performance, high function, low-level >software) > >----- Original Message ----- >From: "Thomas N" >To: >Sent: Thursday, April 12, 2001 12:27 PM >Subject: [PIC]: Compare 4 numbers method. Please help! > > > > Hi everyone, > > > > I need to compare 4 numbers stored in Number1, Number2, Number3, and > > Number4. The result will be stored in the RESULT memory. > > > > I need to find out which one is the biggest, big, small, and smallest. > > Please help me! > > > > Thank you in advance! > > Thomas > >-- >http://www.piclist.com hint: PICList Posts must start with ONE topic: >[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads > > _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads