1 1.1 thomas /* $NetBSD: consio.S,v 1.1 2001/09/08 11:21:02 thomas Exp $ */ 2 1.1 thomas 3 1.1 thomas /* 4 1.1 thomas * Copyright (c) 1995 Waldi Ravens. 5 1.1 thomas * All rights reserved. 6 1.1 thomas * 7 1.1 thomas * Redistribution and use in source and binary forms, with or without 8 1.1 thomas * modification, are permitted provided that the following conditions 9 1.1 thomas * are met: 10 1.1 thomas * 1. Redistributions of source code must retain the above copyright 11 1.1 thomas * notice, this list of conditions and the following disclaimer. 12 1.1 thomas * 2. Redistributions in binary form must reproduce the above copyright 13 1.1 thomas * notice, this list of conditions and the following disclaimer in the 14 1.1 thomas * documentation and/or other materials provided with the distribution. 15 1.1 thomas * 3. All advertising materials mentioning features or use of this software 16 1.1 thomas * must display the following acknowledgement: 17 1.1 thomas * This product includes software developed by Waldi Ravens. 18 1.1 thomas * 4. The name of the author may not be used to endorse or promote products 19 1.1 thomas * derived from this software without specific prior written permission 20 1.1 thomas * 21 1.1 thomas * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 1.1 thomas * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 1.1 thomas * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 1.1 thomas * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 1.1 thomas * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 1.1 thomas * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 1.1 thomas * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 1.1 thomas * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 1.1 thomas * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 1.1 thomas * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 1.1 thomas */ 32 1.1 thomas 33 1.1 thomas #include <machine/asm.h> 34 1.1 thomas 35 1.1 thomas ENTRY_NOPROFILE(getchar) | int getchar (void); 36 1.1 thomas movml %d2/%a2,%sp@- 37 1.1 thomas movw #2,%sp@- | BIOS device 2 => console (VT52) 38 1.1 thomas movw #2,%sp@- | BIOS opcode 2 => Bconin 39 1.1 thomas trap #13 | => char in d0.b 40 1.1 thomas addql #4,%sp 41 1.1 thomas andl #0xff,%d0 42 1.1 thomas movml %sp@+,%d2/%a2 43 1.1 thomas rts 44 1.1 thomas 45 1.1 thomas ENTRY_NOPROFILE(putchar) | void putchar (int c); 46 1.1 thomas movl %sp@(4),%d0 47 1.1 thomas cmpw #10,%d0 | linefeed? 48 1.1 thomas bnes 0f 49 1.1 thomas movq #13,%d0 | yes, put CR and LF. 50 1.1 thomas bsrs 0f 51 1.1 thomas movq #10,%d0 52 1.1 thomas 0: movml %d2/%a2,%sp@- 53 1.1 thomas movw %d0,%sp@- | character 54 1.1 thomas movw #2,%sp@- | BIOS device 2 => console (VT52) 55 1.1 thomas movw #3,%sp@- | BIOS opcode 3 => Bconout 56 1.1 thomas trap #13 | => none 57 1.1 thomas addql #6,%sp 58 1.1 thomas movml %sp@+,%d2/%a2 59 1.1 thomas rts 60
Indexes created Tue Sep 30 17:09:57 GMT 2025