lib/libsa/twiddle.c

1.1  pk /*	$NetBSD: twiddle.c,v 1.1 1999/02/13 20:56:58 pk Exp $	*/
1.1  pk
1.1  pk /*-
1.1  pk  * Copyright (c) 1993
1.1  pk  *	The Regents of the University of California.  All rights reserved.
1.1  pk  *
1.1  pk  * Redistribution and use in source and binary forms, with or without
1.1  pk  * modification, are permitted provided that the following conditions
1.1  pk  * are met:
1.1  pk  * 1. Redistributions of source code must retain the above copyright
1.1  pk  *    notice, this list of conditions and the following disclaimer.
1.1  pk  * 2. Redistributions in binary form must reproduce the above copyright
1.1  pk  *    notice, this list of conditions and the following disclaimer in the
1.1  pk  *    documentation and/or other materials provided with the distribution.
1.1  pk  * 3. All advertising materials mentioning features or use of this software
1.1  pk  *    must display the following acknowledgement:
1.1  pk  *	This product includes software developed by the University of
1.1  pk  *	California, Berkeley and its contributors.
1.1  pk  * 4. Neither the name of the University nor the names of its contributors
1.1  pk  *    may be used to endorse or promote products derived from this software
1.1  pk  *    without specific prior written permission.
1.1  pk  *
1.1  pk  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
1.1  pk  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.1  pk  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.1  pk  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
1.1  pk  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1.1  pk  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
1.1  pk  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1.1  pk  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
1.1  pk  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1.1  pk  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1.1  pk  * SUCH DAMAGE.
1.1  pk  *
1.1  pk  *	@(#)printf.c	8.1 (Berkeley) 6/11/93
1.1  pk  */
1.1  pk
1.1  pk /*
1.1  pk  * Scaled down version of printf(3).
1.1  pk  *
1.1  pk  * One additional format:
1.1  pk  *
1.1  pk  * The format %b is supported to decode error registers.
1.1  pk  * Its usage is:
1.1  pk  *
1.1  pk  *	printf("reg=%b\n", regval, "<base><arg>*");
1.1  pk  *
1.1  pk  * where <base> is the output base expressed as a control character, e.g.
1.1  pk  * \10 gives octal; \20 gives hex.  Each arg is a sequence of characters,
1.1  pk  * the first of which gives the bit number to be inspected (origin 1), and
1.1  pk  * the next characters (up to a control character, i.e. a character <= 32),
1.1  pk  * give the name of the register.  Thus:
1.1  pk  *
1.1  pk  *	printf("reg=%b\n", 3, "\10\2BITTWO\1BITONE\n");
1.1  pk  *
1.1  pk  * would produce output:
1.1  pk  *
1.1  pk  *	reg=3<BITTWO,BITONE>
1.1  pk  */
1.1  pk
1.1  pk #include <sys/cdefs.h>
1.1  pk #include <sys/types.h>
1.1  pk #ifdef __STDC__
1.1  pk #include <machine/stdarg.h>
1.1  pk #else
1.1  pk #include <machine/varargs.h>
1.1  pk #endif
1.1  pk
1.1  pk #include "stand.h"
1.1  pk
1.1  pk void
1.1  pk twiddle()
1.1  pk {
1.1  pk 	static int pos;
1.1  pk
1.1  pk 	putchar("|/-\\"[pos++ & 3]);
1.1  pk 	putchar('\b');
1.1  pk }