diff options
Diffstat (limited to 'i386/pc/i16/i16_real_int.S')
| -rw-r--r-- | i386/pc/i16/i16_real_int.S | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/i386/pc/i16/i16_real_int.S b/i386/pc/i16/i16_real_int.S new file mode 100644 index 00000000..f05077e2 --- /dev/null +++ b/i386/pc/i16/i16_real_int.S @@ -0,0 +1,84 @@ +/* + * 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 "pc_asm.h" + + .text + .code16 + +ENTRY(i16_real_int) + pushf + pushl %ebx + pushl %esi + pushl %edi + pushl %ebp + + cli + + movl 6*4(%esp),%eax + movb %al,1f+1 + + movl 7*4(%esp),%ebp + movl RCD_EAX(%ebp),%eax + movl RCD_EBX(%ebp),%ebx + movl RCD_ECX(%ebp),%ecx + movl RCD_EDX(%ebp),%edx + movl RCD_ESI(%ebp),%esi + movl RCD_EDI(%ebp),%edi + movw RCD_DS(%ebp),%ds + movw RCD_ES(%ebp),%es + /* XXX flags */ + movl RCD_EBP(%ebp),%ebp + +1: int $0 + + pushl %ebp + movl 8*4(%esp),%ebp + popl RCD_EBP(%ebp) + + movl %eax,RCD_EAX(%ebp) + movl %ebx,RCD_EBX(%ebp) + movl %ecx,RCD_ECX(%ebp) + movl %edx,RCD_EDX(%ebp) + movl %esi,RCD_ESI(%ebp) + movl %edi,RCD_EDI(%ebp) + movw %ds,RCD_DS(%ebp) + movw %es,RCD_ES(%ebp) + + pushf + popl %eax + movw %ax,RCD_FLAGS(%ebp) + + movw %ss,%ax + movw %ax,%ds + movw %ax,%es + + popl %ebp + popl %edi + popl %esi + popl %ebx + popf + ret + |