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e240856e43
data registers stored are 1 to 7, not 0 to 7
* rtl/m68k/setjump.inc:
don't use "S" or "value" to reference the parameters as the code generator does not use "sp" instead of "fp" in case of "nostackframe"
restore a0 at the end of setjmp
git-svn-id: trunk@23240 -
41 lines
1.6 KiB
PHP
41 lines
1.6 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 xxxx
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member of the Free Pascal development team
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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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{**********************************************************************
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Declarations for SetJmp/LongJmp
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**********************************************************************}
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Type
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jmp_buf = packed record
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fp : dword; { offset 0} { frame pointer (also a6) }
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sp : dword; { offset 4} { stack pointer (also a7) }
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pc : dword; { offset 8} { program counter }
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{ There is no point in saving d0, as this is the register used to
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return the vlaue of a function, which must be either zero
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if called from SetJmp or value if called from LongJmp }
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{ data registers (d1, d2, d3, d4, d5, d6, d7) }
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{ offsets: 12, 16, 20, 24, 28, 32, 36 }
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dregs : array[1..7] of dword;
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{ address registers (a0, a1, a2, a3, a4, a5), a6 and a7 are fp and sp respectively }
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{ offsets: 40, 44, 48, 52, 56, 60 }
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aregs : array[0..5] of dword;
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{Total size 64 bytes }
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end;
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PJmp_buf = ^jmp_buf;
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Function Setjmp (Var S : Jmp_buf) : longint;[external name 'FPC_SETJMP'];
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Procedure longjmp (Var S : Jmp_buf; value : longint);[external name 'FPC_LONGJMP'];
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