Mercurial > hg > Members > kono > nitros9-code
diff lib/alib/to_lowrs.a @ 2474:7d70b7e1cb21
Moved net and alib files into here
author | boisy |
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date | Tue, 30 Mar 2010 02:44:42 +0000 |
parents | |
children | aaba193af04f |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/lib/alib/to_lowrs.a Tue Mar 30 02:44:42 2010 +0000 @@ -0,0 +1,30 @@ +******************************* + +* 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 +