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putstr.S revision 1.2
      1  1.2  martin /*	$NetBSD: putstr.S,v 1.2 2008/04/28 20:23:25 martin Exp $	*/
      2  1.1     dsl 
      3  1.1     dsl /*-
      4  1.1     dsl  * Copyright (c) 2003 The NetBSD Foundation, Inc.
      5  1.1     dsl  * All rights reserved.
      6  1.1     dsl  *
      7  1.1     dsl  * This code is derived from software contributed to The NetBSD Foundation
      8  1.1     dsl  * by David Laight.
      9  1.1     dsl  *
     10  1.1     dsl  * Redistribution and use in source and binary forms, with or without
     11  1.1     dsl  * modification, are permitted provided that the following conditions
     12  1.1     dsl  * are met:
     13  1.1     dsl  * 1. Redistributions of source code must retain the above copyright
     14  1.1     dsl  *    notice, this list of conditions and the following disclaimer.
     15  1.1     dsl  * 2. Redistributions in binary form must reproduce the above copyright
     16  1.1     dsl  *    notice, this list of conditions and the following disclaimer in the
     17  1.1     dsl  *    documentation and/or other materials provided with the distribution.
     18  1.1     dsl  *
     19  1.1     dsl  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  1.1     dsl  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  1.1     dsl  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  1.1     dsl  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  1.1     dsl  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  1.1     dsl  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  1.1     dsl  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  1.1     dsl  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  1.1     dsl  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  1.1     dsl  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  1.1     dsl  * POSSIBILITY OF SUCH DAMAGE.
     30  1.1     dsl  */
     31  1.1     dsl 
     32  1.1     dsl #include <machine/asm.h>
     33  1.1     dsl 
     34  1.1     dsl /*
     35  1.1     dsl  * Diagnostic print routines callable from 32bit C code during early
     36  1.1     dsl  * parts of the boot process.
     37  1.1     dsl  */
     38  1.1     dsl 
     39  1.1     dsl /*
     40  1.1     dsl  * void putstr(const char *)
     41  1.1     dsl  *
     42  1.1     dsl  * display message on console
     43  1.1     dsl  * bugs: message address must be less than 64k
     44  1.1     dsl  */
     45  1.1     dsl 
     46  1.1     dsl 	.globl	_C_LABEL(putstr)
     47  1.1     dsl _C_LABEL(putstr):
     48  1.1     dsl 	.code32
     49  1.1     dsl 	movl	4(%esp), %eax
     50  1.1     dsl 	pusha
     51  1.1     dsl 	movl	%eax, %esi
     52  1.1     dsl 
     53  1.1     dsl 	call	_C_LABEL(prot_to_real)
     54  1.1     dsl 	.code16
     55  1.1     dsl 
     56  1.1     dsl 	movl	%esi, %eax
     57  1.1     dsl 	call	message
     58  1.1     dsl 
     59  1.1     dsl 	calll	_C_LABEL(real_to_prot)
     60  1.1     dsl 	.code32
     61  1.1     dsl 	popa
     62  1.1     dsl 	ret
     63  1.1     dsl 
     64  1.1     dsl /*
     65  1.1     dsl  * void putint(int)
     66  1.1     dsl  *
     67  1.1     dsl  * display value on console as 8 hex digits followed by a space
     68  1.1     dsl  */
     69  1.1     dsl 
     70  1.1     dsl 	.globl	_C_LABEL(putint)
     71  1.1     dsl _C_LABEL(putint):
     72  1.1     dsl 	.code32
     73  1.1     dsl 	movl	4(%esp), %eax
     74  1.1     dsl 	pusha
     75  1.1     dsl 
     76  1.1     dsl 	call	_C_LABEL(prot_to_real)
     77  1.1     dsl 	.code16
     78  1.1     dsl 
     79  1.1     dsl 	call	dump_eax
     80  1.1     dsl 
     81  1.1     dsl 	calll	_C_LABEL(real_to_prot)
     82  1.1     dsl 	.code32
     83  1.1     dsl 	popa
     84  1.1     dsl 	ret
     85