diff options
Diffstat (limited to 'sys/arch/mvme88k/stand/libsa/promcons.c')
| -rw-r--r-- | sys/arch/mvme88k/stand/libsa/promcons.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/sys/arch/mvme88k/stand/libsa/promcons.c b/sys/arch/mvme88k/stand/libsa/promcons.c new file mode 100644 index 00000000000..77ece569969 --- /dev/null +++ b/sys/arch/mvme88k/stand/libsa/promcons.c @@ -0,0 +1,71 @@ +/* $Id: promcons.c,v 1.1 1997/03/03 19:30:36 rahnds Exp $ */ + +/* + * Copyright (c) 1996 Nivas Madhur + * Copyright (c) 1995 Theo de Raadt + * 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 Theo de Raadt + * 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. + */ + +#include <stdarg.h> +#include <sys/types.h> + +int +getchar() +{ + char c; + + __asm volatile("or r9, r0, 0\n + tb0 0, r0, 496\n + st.b r2, %0" : "=m" (c)); + return (c); +} + +peekchar() +{ + int have = 0; + + __asm volatile("or r9, r0, 1\n + tb0 0, r0, 496\n + bb1 2, r2, 1f\n + or r2,r0, 1\n + st r2, %0\n1:" : "=m" (have) :); + return (have); +} + +void +putchar(c) + int c; +{ + if (c == '\n') + putchar('\r'); + __asm volatile("or r9, r0, 0x20\n + or r2, r0, %0\n + tb0 0, r0, 496\n" : : "r" (c)); +} + |