NetBSD/sys/arch/atari/stand/libsa/consio.s

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1996-02-29 14:35:46 +03:00
/* $NetBSD: consio.s,v 1.1.1.1 1996/02/29 11:36:12 leo Exp $ */
/*
* Copyright (c) 1995 Waldi Ravens.
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Waldi Ravens.
* 4. 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.
*/
.globl _getchar | int getchar (void);
.text
.even
_getchar:
movml d2/a2,sp@-
movw #2,sp@- | BIOS device 2 => console (VT52)
movw #2,sp@- | BIOS opcode 2 => Bconin
trap #13 | => char in d0.b
addql #4,sp
andl #0xff,d0
movml sp@+,d2/a2
rts
.globl _putchar | void putchar (int c);
.text
.even
_putchar:
movl sp@(4),d0
cmpw #10,d0 | linefeed?
bnes 0f
movq #13,d0 | yes, put CR and LF.
bsrs 0f
movq #10,d0
0: movml d2/a2,sp@-
movw d0,sp@- | character
movw #2,sp@- | BIOS device 2 => console (VT52)
movw #3,sp@- | BIOS opcode 3 => Bconout
trap #13 | => none
addql #6,sp
movml sp@+,d2/a2
rts