freebsd-dev/sys/boot/i386/libi386/pxetramp.s

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#
# Copyright (c) 2000 Peter Wemm
# All rights reserved.
#
# Redistribution and use in source and binary forms are freely
# permitted provided that the above copyright notice and this
# paragraph and the following disclaimer are duplicated in all
# such forms.
#
# This software is provided "AS IS" and without any express or
# implied warranties, including, without limitation, the implied
# warranties of merchantability and fitness for a particular
# purpose.
#
# $FreeBSD$
# ph33r this
.globl __bangpxeentry, __bangpxeseg, __bangpxeoff
.globl __pxenventry, __pxenvseg, __pxenvoff
.code16
.p2align 4,0x90
__bangpxeentry:
push %dx # seg:data
push %ax # off:data
push %bx # int16 func
.byte 0x9a # far call
__bangpxeoff: .word 0x0000 # offset
__bangpxeseg: .word 0x0000 # segment
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add $6, %sp # restore stack
.byte 0xcb # to vm86int
#
__pxenventry:
.byte 0x9a # far call
__pxenvoff: .word 0x0000 # offset
__pxenvseg: .word 0x0000 # segment
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.byte 0xcb # to vm86int