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34 lines
971 B
PHP
34 lines
971 B
PHP
{
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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 r9,r3,1
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.LStrLenLoop:
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lbzu r10,1(r9)
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cmplwi cr0,r10,0
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bne .LStrLenLoop
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sub r3,r9,r3
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.LStrLenDone:
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end;
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