diff options
Diffstat (limited to 'sys/boot/i386/libi386/startprog.S')
| -rw-r--r-- | sys/boot/i386/libi386/startprog.S | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/sys/boot/i386/libi386/startprog.S b/sys/boot/i386/libi386/startprog.S deleted file mode 100644 index 348341f..0000000 --- a/sys/boot/i386/libi386/startprog.S +++ /dev/null @@ -1,120 +0,0 @@ -/* $NetBSD: startprog.S,v 1.1.1.1 1997/03/14 02:40:33 perry Exp $ */ - -/* starts program in protected mode / flat space - with given stackframe - needs global variables flatcodeseg and flatdataseg - (gdt offsets) - derivied from: NetBSD:sys/arch/i386/boot/asm.S - */ - -/* - * Ported to boot 386BSD by Julian Elischer (julian@tfs.com) Sept 1992 - * - * Mach Operating System - * Copyright (c) 1992, 1991 Carnegie Mellon University - * All Rights Reserved. - * - * Permission to use, copy, modify and distribute this software and its - * documentation is hereby granted, provided that both the copyright - * notice and this permission notice appear in all copies of the - * software, derivative works or modified versions, and any portions - * thereof, and that both notices appear in supporting documentation. - * - * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" - * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR - * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * - * Carnegie Mellon requests users of this software to return to - * - * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU - * School of Computer Science - * Carnegie Mellon University - * Pittsburgh PA 15213-3890 - * - * any improvements or extensions that they make and grant Carnegie Mellon - * the rights to redistribute these changes. - */ - -/* - Copyright 1988, 1989, 1990, 1991, 1992 - by Intel Corporation, Santa Clara, California. - - All Rights Reserved - -Permission to use, copy, modify, and distribute this software and -its documentation for any purpose and without fee is hereby -granted, provided that the above copyright notice appears in all -copies and that both the copyright notice and this permission notice -appear in supporting documentation, and that the name of Intel -not be used in advertising or publicity pertaining to distribution -of the software without specific, written prior permission. - -INTEL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE -INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, -IN NO EVENT SHALL INTEL BE LIABLE FOR ANY SPECIAL, INDIRECT, OR -CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM -LOSS OF USE, DATA OR PROFITS, WHETHER IN ACTION OF CONTRACT, -NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION -WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. -*/ - -#include <machine/asm.h> - -/* - * startprog(phyaddr,argc,argv,stack) - * start the program on protected mode where phyaddr is the entry point - */ -ENTRY(startprog) - pushl %ebp - movl %esp, %ebp - - # prepare a new stack - movl $flatdataseg, %ebx - movw %bx, %es # for arg copy - movl 20(%ebp), %eax # stack - subl $4,%eax - movl %eax, %edi - - # push some number of args onto the stack - movl 12(%ebp), %ecx # argc - - movl %ecx, %eax - decl %eax - shl $2, %eax - addl 16(%ebp), %eax # ptr to last arg - movl %eax, %esi - - std # backwards - rep - movsl - - cld # LynxOS depends on it - - movl 8(%ebp), %ecx # entry - - # set new stackptr (movsl decd sp 1 more -> dummy return address) - movw %bx, %ss - movl %edi, %esp - - # plug in a return address so that FreeBSD detects we are using - # bootinfo - movl $ourreturn, %eax - movl %eax, (%esp) - - # push on our entry address - movl $flatcodeseg, %ebx # segment - pushl %ebx - pushl %ecx #entry - - # convert over the other data segs - movl $flatdataseg, %ebx - movl %bx, %ds - movl %bx, %es - - # convert the PC (and code seg) - lret - -ourreturn: - /* For now there is not much we can do, just lock in a loop */ - jmp ourreturn - |
