view lib/alib/is_upper.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 uppercase letter

* OTHER MODULES NEEDED: none

* ENTRY: B=character to test

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

 nam Is Char Uppercase?
 ttl Assembler Library Module


 psect IS_UPPER,0,0,0,0,0


IS_UPPER:
 cmpb #'A 
 blo no not uppercase, zero cleared
 cmpb #'Z if equal, zero set
 bhi no not upperc, zero cleared
 orcc #%00000100 set zero

no
 rts

 endsect