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putstr.S revision 1.1 
      1 /*	$NetBSD: putstr.S,v 1.1 2003/04/16 13:24:10 dsl Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2003 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by David Laight.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <machine/asm.h>
     40 
     41 /*
     42  * Diagnostic print routines callable from 32bit C code during early
     43  * parts of the boot process.
     44  */
     45 
     46 /*
     47  * void putstr(const char *)
     48  *
     49  * display message on console
     50  * bugs: message address must be less than 64k
     51  */
     52 
     53 	.globl	_C_LABEL(putstr)
     54 _C_LABEL(putstr):
     55 	.code32
     56 	movl	4(%esp), %eax
     57 	pusha
     58 	movl	%eax, %esi
     59 
     60 	call	_C_LABEL(prot_to_real)
     61 	.code16
     62 
     63 	movl	%esi, %eax
     64 	call	message
     65 
     66 	calll	_C_LABEL(real_to_prot)
     67 	.code32
     68 	popa
     69 	ret
     70 
     71 /*
     72  * void putint(int)
     73  *
     74  * display value on console as 8 hex digits followed by a space
     75  */
     76 
     77 	.globl	_C_LABEL(putint)
     78 _C_LABEL(putint):
     79 	.code32
     80 	movl	4(%esp), %eax
     81 	pusha
     82 
     83 	call	_C_LABEL(prot_to_real)
     84 	.code16
     85 
     86 	call	dump_eax
     87 
     88 	calll	_C_LABEL(real_to_prot)
     89 	.code32
     90 	popa
     91 	ret
     92