Mercurial > hg > Members > kono > nitros9-code

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

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
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
line wrap: on
line source

*******************************

* convert a null terminated string to all lowercase

* OTHER MODULES NEEDED: TO_LOWER

* ENTRY: X=start of string

* EXIT:  all registers  preserved

 nam Convert String to Lowercase
 ttl Assembler Library Module

 psect TO_LOWRS,0,0,0,0,0

TO_LOWRS:
 pshs cc,b,x

loop
 ldb ,x get char to check
 beq exit exit if all done
 bsr TO_LOWER convert to upper 
 stb ,x+ put back in string
 bra loop loop till done

exit
 puls cc,b,x,pc

 endsect