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Add getchar().

This commit is contained in:
tsutsui 2002-04-30 13:08:01 +00:00
parent ea0ec5a299
commit 2d9bb7f94e
2 changed files with 49 additions and 2 deletions
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4
sys/arch/news68k/stand/boot/Makefile
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@ -1,4 +1,4 @@
# $NetBSD: Makefile,v 1.13 2001/12/12 12:24:24 lukem Exp $ # $NetBSD: Makefile,v 1.14 2002/04/30 13:08:02 tsutsui Exp $
NOMAN= # defined NOMAN= # defined
@ -11,7 +11,7 @@ COMMONOBJ!= cd ${COMMON} && ${PRINTOBJDIR}
PROG= boot PROG= boot
SRCS= locore.S boot.c devopen.c SRCS= locore.S boot.c devopen.c
SRCS+= romcalls.S putchar.c SRCS+= romcalls.S getchar.c putchar.c
STRIPFLAG= STRIPFLAG=
BINMODE= 444 BINMODE= 444

47
sys/arch/news68k/stand/common/getchar.c Normal file
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@ -0,0 +1,47 @@
/* $NetBSD: getchar.c,v 1.1 2002/04/30 13:08:01 tsutsui Exp $ */
/*-
* Copyright (C) 2002 Izumi Tsutsui. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <lib/libkern/libkern.h>
#include <lib/libsa/stand.h>
#include <machine/romcall.h>
int
getchar()
{
char c = '\0';
int i;
for (;;) {
i = rom_read(1, &c, 1);
if (i == 1)
break;
if (i != -2 && i != 0)
return -1;
}
return c;
}