60 lines
2.0 KiB
C
60 lines
2.0 KiB
C
/*-
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* Copyright (c) 2010 Rui Paulo <rpaulo@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <stand.h>
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#include <machine/elf.h>
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#include "../btx/lib/btxv86.h"
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#include "../../common/bootstrap.h"
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uint32_t __base;
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struct __v86 __v86;
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void
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__v86int()
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{
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printf("%s\n", __func__);
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exit(1);
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}
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void
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__exec(caddr_t addr, ...)
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{
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/* XXX this is wrong */
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__asm __volatile("movl %cr0, %eax");
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__asm __volatile("andl $0x7fffffff, %eax");
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__asm __volatile("mov %eax, %cr0");
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__asm __volatile("xorl %eax, %eax");
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__asm __volatile("mov %eax, %cr3");
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__asm __volatile("movl %cr0, %eax");
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__asm __volatile("andl $0xfffffffe, %eax");
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__asm __volatile("movl %eax, %cr0");
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__asm __volatile("jmp %0" :: "r" (addr));
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}
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