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59 lines
1.4 KiB
PHP
59 lines
1.4 KiB
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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SetJmp and LongJmp implementation for exception handling
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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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Function SetJmp (Var S : Jmp_buf) : longint;assembler;[Public, alias : 'FPC_SETJMP'];
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asm
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{$ifndef REGCALL}
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movl 8(%ebp),%eax
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{$endif}
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movl %ebx,(%eax)
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movl %esi,4(%eax)
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movl %edi,8(%eax)
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movl 4(%ebp),%edi
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movl %edi,20(%eax)
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movl (%ebp),%edi
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movl %edi,12(%eax)
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{$ifdef REGCALL}
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leal 8(%ebp),%edi
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{$else}
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leal 12(%ebp),%edi
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{$endif}
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movl %edi,16(%eax)
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movl 8(%eax),%edi
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xorl %eax,%eax
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end['EAX'];
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Procedure longJmp (Var S : Jmp_buf; value : longint); assembler;[Public, alias : 'FPC_LONGJMP'];
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asm
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{$ifdef REGCALL}
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xchgl %edx,%eax
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{$else}
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movl 8(%ebp),%edx
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movl 12(%ebp),%eax
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{$endif}
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movl (%edx),%ebx
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movl 4(%edx),%esi
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movl 8(%edx),%edi
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movl 12(%edx),%ebp
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movl 16(%edx),%esp
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// we should also clear the fpu
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// fninit no must be done elsewhere PM
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// or we should reset the control word also
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jmp 20(%edx)
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end;
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