view lib/alib/to_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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* Convert character in "B" to uppercase

* OTHER MODULES NEEDED: IS_LOWER

* ENTRY: B=ascii value of character to convert

* EXIT: B=ascii value of character in uppercase

* Note: control codes, etc. are not effected.


 nam Convert Char to Uppercase
 ttl Assembler Library Module


 psect TO_UPPER,0,0,0,0,0

TO_UPPER:
 pshs cc
 lbsr IS_LOWER only lowercase can be converted to upper
 bne toupx
 subb #$20 make uppercase

toupx
 puls cc,pc

 endsect