64 lines
2.3 KiB
ArmAsm
64 lines
2.3 KiB
ArmAsm
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/* $NetBSD: consio.s,v 1.1.1.1 1996/02/29 11:36:12 leo Exp $ */
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/*
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* Copyright (c) 1995 Waldi Ravens.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Waldi Ravens.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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.globl _getchar | int getchar (void);
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.text
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.even
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_getchar:
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movml d2/a2,sp@-
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movw #2,sp@- | BIOS device 2 => console (VT52)
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movw #2,sp@- | BIOS opcode 2 => Bconin
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trap #13 | => char in d0.b
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addql #4,sp
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andl #0xff,d0
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movml sp@+,d2/a2
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rts
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.globl _putchar | void putchar (int c);
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.text
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.even
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_putchar:
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movl sp@(4),d0
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cmpw #10,d0 | linefeed?
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bnes 0f
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movq #13,d0 | yes, put CR and LF.
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bsrs 0f
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movq #10,d0
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0: movml d2/a2,sp@-
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movw d0,sp@- | character
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movw #2,sp@- | BIOS device 2 => console (VT52)
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movw #3,sp@- | BIOS opcode 3 => Bconout
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trap #13 | => none
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addql #6,sp
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movml sp@+,d2/a2
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rts
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