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61 lines
1.7 KiB
PHP
61 lines
1.7 KiB
PHP
{
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$Id$
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This file is part of the Free Pascal run time library.
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Copyright (c) 1999-2000 by the Free Pascal development team
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Processor specific implementation of strlen
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See the file COPYING.FPC, included in this distribution,
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for details about the copyright.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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**********************************************************************}
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{ in: p in r3 }
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{ out: result (length) in r3 }
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asm
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{ load the begin of the string in the data cache }
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dcbt 0,r3
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{ empty/invalid string? }
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cmplwi cr0,r3,0
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{ if yes, do nothing }
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beq .LStrLenDone
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subi r29,r3,1
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.LStrLenLoop:
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lbzu r30,1(r29)
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cmplwi cr0,r30,0
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bne .LStrLenLoop
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sub r3,r29,r3
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.LStrLenDone:
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end;
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{
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$Log$
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Revision 1.8 2003-11-23 17:34:27 jonas
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* fixed some label names
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Revision 1.7 2003/11/15 19:01:27 florian
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* fixed rtl to work with the integrated fpc ppc assembler reader
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Revision 1.6 2003/06/14 12:41:09 jonas
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* fixed compilation problems (removed unnecessary modified registers
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lists from procedures)
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Revision 1.5 2002/09/11 07:49:40 jonas
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* fixed assembler errors
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Revision 1.4 2002/09/07 16:01:26 peter
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* old logs removed and tabs fixed
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Revision 1.3 2002/08/18 21:37:48 florian
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* several errors in inline assembler fixed
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Revision 1.2 2002/08/10 17:14:36 jonas
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* various fixes, mostly changing the names of the modifies registers to
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upper case since that seems to be required by the compiler
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}
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