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From: md@ncsu.UUCP
Newsgroups: net.micro.apple
Subject: Re: Lower Case Using Apple DOS
Message-ID: <2626@ncsu.UUCP>
Date: Thu, 21-Jun-84 13:26:04 EDT
Article-I.D.: ncsu.2626
Posted: Thu Jun 21 13:26:04 1984
Date-Received: Wed, 27-Jun-84 00:44:18 EDT
References: <1259@sdccs7.UUCP>
Organization: N.C. State University, Raleigh
Lines: 35

yes there is a way to have DOS accept lower case commands, the program
is listed below, here is how it works.  There are several unused placed in
DOS that can store small patches, $BCDF-BCFF is one of them.  In this location
goes a routine that reads a character from the input buffer ($200) and 
checks to see if this is a lower case letter, if it is it changes it
to upper case (in the a-reg only not the buffer) and then lets normal
DOS take it from there.  The routine that calls this patch is located 
at $A193 and the change there is shown below.  
	
	BCDF: BD 00 02  LDA $200,X
	      C9 E1     CMP #$E1
	      90 06     BCC $BCEC
	      C9 FB     CMP #$FB
	      B0 02     BCS $BCEC
	      29 DF     AND #$DF
	BCEC: 60        RTS

	second patch goes here

	change A196 from LDA $200,X  to   A196: 20 DF BC   JSR $BCDF

  the other method involving some $F000 or so location only allows
  lower case letters to be typed, NOT accepted as commands.

  While on the subject of lower case did you know that the Franklin 
  computer allows for more variable names than the Apple.  The 
  Franklin allows for lower case variable names so variable aa$ is 
  different from variable AA$!!!
  Anyone interested in this can reply to me.  (I own an Apple ][ my
  dad owns a Franklin.)  

			Mike Davis
			NCSU Raleigh NC