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- 1.1
- date 92.05.14.20.36.14; author mwild; state Exp;
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- desc
- @non-debugging version of syscall()
- @
-
-
- 1.1
- log
- @Initial revision
- @
- text
- @/*
- * This file is part of ixemul.library for the Amiga.
- * Copyright (C) 1991, 1992 Markus M. Wild
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * $Id$
- *
- * $Log$
- */
-
- | this is the library internal function!!
- | there is a similar function in the statically linked part of the library, but
- | that one may not use our library base vector
-
- .globl _syscall
-
- _syscall:
- movel _ixemulbase,a0
- movel sp@@(4),d0 | get vector number
- addl #4,d0 | add 4, since we start at offset -30 (first #=1)
- addl d0,d0
- subl d0,a0
- addl d0,d0
- subl d0,a0
-
- lea sp@@(8),sp | advance to "real" arguments
- jsr a0@@
- lea sp@@(-8),sp | and back, so rts will work ;-)
-
- rts
- @
-