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Diffstat (limited to 'i386/pc/rv86/trap_handler.S')
| -rw-r--r-- | i386/pc/rv86/trap_handler.S | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/i386/pc/rv86/trap_handler.S b/i386/pc/rv86/trap_handler.S new file mode 100644 index 0000000..99254ee --- /dev/null +++ b/i386/pc/rv86/trap_handler.S @@ -0,0 +1,39 @@ +/* + * Copyright (c) 1995-1994 The University of Utah and + * the Computer Systems Laboratory at the University of Utah (CSL). + * All rights reserved. + * + * Permission to use, copy, modify and distribute this software is hereby + * granted provided that (1) source code retains these copyright, permission, + * and disclaimer notices, and (2) redistributions including binaries + * reproduce the notices in supporting documentation, and (3) all advertising + * materials mentioning features or use of this software display the following + * acknowledgement: ``This product includes software developed by the + * Computer Systems Laboratory at the University of Utah.'' + * + * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS + * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF + * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * CSL requests users of this software to return to csl-dist@cs.utah.edu any + * improvements that they make and grant CSL redistribution rights. + * + * Author: Bryan Ford, University of Utah CSL + */ + +#include <mach/machine/asm.h> +#include <mach/machine/eflags.h> + +#include "trap.h" +#include "trap_asm.h" + + .text + +ENTRY(trap_handler) + + /* See if we came from v86 mode. */ + testl $EFL_VM,TR_EFLAGS(%esp) + jnz EXT(rv86_trap_handler) + + UNEXPECTED_TRAP + |