Mercurial > hg > Members > kono > nitros9-code
diff lib/alib/strncmp.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/strncmp.a Tue Mar 30 02:44:42 2010 +0000 @@ -0,0 +1,47 @@ +************************************* + +* STRNCMP: compare 2 null terminated strings +* maximum number of bytes to compare in D +* +* OTHER MODULES NEEDED: COMPARE + +* ENTRY: X=start of 1st string +* Y=start of 2nd string +* D=number of bytes to compare +* CASEMTCH:(a global variable in COMPARE) +* 0=match for case +* -1=ignore case differences + +* EXIT: CC zero set if equal (beq) +* carry + zero clear if 1>2 (bhi) +* carry set if 1<2 (blo) + + nam Compare 2 Strings + ttl Assembler Library Module + + + psect STRNCMP,0,0,0,0,0 + + +STRNCMP: + pshs d,x,y,u + + tfr y,u U=string2 + tfr d,y use Y for counter + leay 1,y comp for initial dec. + +loop + leay -1,y count down + beq exit no miss-matches + lda ,x+ get 2 to compare + ldb ,u+ + lbsr COMPARE go compare chars. + beq loop chars match, do more + +* exit with flags set. Do a beq, bhi or blo to correct +* routines.... + +exit + puls d,x,y,u,pc + + endsect