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putstr.S revision 1.2 
      1 /*	$NetBSD: putstr.S,v 1.2 2008/04/28 20:23:25 martin 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  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <machine/asm.h>
     33 
     34 /*
     35  * Diagnostic print routines callable from 32bit C code during early
     36  * parts of the boot process.
     37  */
     38 
     39 /*
     40  * void putstr(const char *)
     41  *
     42  * display message on console
     43  * bugs: message address must be less than 64k
     44  */
     45 
     46 	.globl	_C_LABEL(putstr)
     47 _C_LABEL(putstr):
     48 	.code32
     49 	movl	4(%esp), %eax
     50 	pusha
     51 	movl	%eax, %esi
     52 
     53 	call	_C_LABEL(prot_to_real)
     54 	.code16
     55 
     56 	movl	%esi, %eax
     57 	call	message
     58 
     59 	calll	_C_LABEL(real_to_prot)
     60 	.code32
     61 	popa
     62 	ret
     63 
     64 /*
     65  * void putint(int)
     66  *
     67  * display value on console as 8 hex digits followed by a space
     68  */
     69 
     70 	.globl	_C_LABEL(putint)
     71 _C_LABEL(putint):
     72 	.code32
     73 	movl	4(%esp), %eax
     74 	pusha
     75 
     76 	call	_C_LABEL(prot_to_real)
     77 	.code16
     78 
     79 	call	dump_eax
     80 
     81 	calll	_C_LABEL(real_to_prot)
     82 	.code32
     83 	popa
     84 	ret
     85