view lib/alib/is_alpha.a @ 2765:0bd16cca86b7

Updated rules.mak for all the os9 format's to format the entire disk. People were having some issues with the disk images not being formatted to their full capacity and preventing some functions from working.
author drencor-xeen
date Thu, 17 Jan 2013 11:03:26 -0600
parents 7d70b7e1cb21
children aaba193af04f
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*****************************************

* See if character in "B" is a alpha letter a..z or A..Z

* OTHER MODULES NEEDED: IS_LOWER, IS_UPPER

* ENTRY: B=character to test

* EXIT: CC zero=1 if alpha, 0 if not

 nam Is Char Alphabetic?
 ttl Assembler Library Module


 psect IS_ALPHA,0,0,0,0,0


IS_ALPHA:
 lbsr IS_UPPER
 BEQ yes uppercase letters are alpha
 lbsr IS_LOWER last chance to set flags.

yes
 rts


 endsect