93 lines
2.7 KiB
C
93 lines
2.7 KiB
C
/* $NetBSD: bootsectmain.c,v 1.3 1999/04/14 10:57:59 drochner Exp $ */
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/*
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* Copyright (c) 1996
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* Matthias Drochner. 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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* 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project
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* by Matthias Drochner.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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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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*/
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/* load remainder of boot program
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(blocks from fraglist),
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start main()
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needs lowlevel parts from biosdisk_ll.c
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*/
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#include <lib/libsa/stand.h>
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#include <biosdisk_ll.h>
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#include "bbinfo.h"
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int boot_biosdev; /* exported */
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void bootsectmain __P((int));
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extern struct fraglist fraglist;
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extern char edata[], end[];
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extern void main __P((void));
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void
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bootsectmain(biosdev)
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int biosdev;
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{
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struct biosdisk_ll d;
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int i;
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char *buf;
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/*
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* load sectors from bootdev
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*/
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d.dev = biosdev;
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set_geometry(&d, NULL);
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buf = (char*)(PRIM_LOADSZ * BIOSDISK_SECSIZE);
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for (i = 0; i < fraglist.numentries; i++) {
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int dblk, num;
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dblk = fraglist.entries[i].offset;
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num = fraglist.entries[i].num;
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if (readsects(&d, dblk, num, buf, 1))
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return; /* halts in start_bootsect.S */
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buf += num * BIOSDISK_SECSIZE;
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}
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/* clear BSS */
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buf = edata;
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while(buf < end)
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*buf++ = 0;
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/* call main() */
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boot_biosdev = biosdev;
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main();
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}
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