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58 lines
1.5 KiB
PHP
58 lines
1.5 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;nostackframe;[Public, alias : 'FPC_SETJMP'];
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asm
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{$ifndef REGCALL}
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movl 4(%esp),%eax
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{$endif}
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movl %ebx,Jmp_buf.ebx(%eax)
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movl %esi,Jmp_buf.esi(%eax)
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movl %edi,Jmp_buf.edi(%eax)
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movl %ebp,Jmp_buf.bp(%eax)
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{$ifdef REGCALL}
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leal 4(%esp),%edi
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{$else}
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leal 8(%esp),%edi
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{$endif}
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movl %edi,Jmp_buf.sp(%eax)
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movl (%esp),%edi
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movl %edi,Jmp_buf.pc(%eax)
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movl Jmp_buf.edi(%eax),%edi
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xorl %eax,%eax
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end;
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Procedure longJmp (Var S : Jmp_buf; value : longint); assembler;nostackframe;[Public, alias : 'FPC_LONGJMP'];
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asm
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{$ifdef REGCALL}
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xchgl %edx,%eax
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{$else}
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movl 4(%esp),%edx
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movl 8(%esp),%eax
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{$endif}
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movl Jmp_buf.ebx(%edx),%ebx
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movl Jmp_buf.esi(%edx),%esi
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movl Jmp_buf.edi(%edx),%edi
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movl Jmp_buf.bp(%edx),%ebp
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movl Jmp_buf.sp(%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 Jmp_buf.pc(%edx)
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end;
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