77 lines
2.1 KiB
ArmAsm
77 lines
2.1 KiB
ArmAsm
/* $NetBSD: fdsub.S,v 1.1 2001/09/27 10:03:28 minoura Exp $ */
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/*
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* Copyright (c) 2001 MINOURA Makoto.
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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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* 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 <machine/asm.h>
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#include "iocscall.h"
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/*
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* int fd_check_fmt(drive, head, minmax)
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* int drive; (0-3)
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* int head; (0-1)
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* struct fdfmt *minmax; (results are stored)
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* return value: 0 on success, or negative
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*/
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.text
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ENTRY_NOPROFILE(fd_check_format)
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|| movl %sp@(4),%d1
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|| andil #3,%d1
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|| orib #0x90,%d1
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|| lslw #8,%d1
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|| movql #0,%d2
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|| IOCS(__B_DRVCHK)
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|| btst.b #1,%d0
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|| beq fail
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|| IOCS(__B_RECALI)
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moveml %sp@(4),%d0-%d1
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andil #1,%d1
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andil #3,%d0
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lslw #2,%d1
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orw %d1,%d0
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jbsr check_fd_format
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tstl %d1
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beq fail1
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moval %sp@(12),%a0
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moveml %d0-%d1,%a0@
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movl #0,%d0
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rts
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||fail:
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|| movl #-6,%d0
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|| rts
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fail1:
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movl #-5,%d0
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#define BOOT_ERROR(a) movl #0,%d1; \
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rts
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#include "chkfmt.s"
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