This commit was manufactured by cvs2svn to create tag 'FreeBSD-release/1.0'.

[unix-history] / sys / i386 / boot / io.c

diff --git a/sys/i386/boot/io.c b/sys/i386/boot/io.c
index 237b21c..6a5a58a 100644 (file)
--- a/sys/i386/boot/io.c
+++ b/sys/i386/boot/io.c
@@ -1,6 +1,4 @@
 /*
 /*

- * Ported to boot 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
- *

  * Mach Operating System
  * Copyright (c) 1992, 1991 Carnegie Mellon University
  * All Rights Reserved.
  * Mach Operating System
  * Copyright (c) 1992, 1991 Carnegie Mellon University
  * All Rights Reserved.


@@ -24,18 +22,9 @@
  * 
  * any improvements or extensions that they make and grant Carnegie Mellon
  * the rights to redistribute these changes.
  * 
  * any improvements or extensions that they make and grant Carnegie Mellon
  * the rights to redistribute these changes.

- */
-
-/*
- * HISTORY
- * $Log:       io.c,v $
- * Revision 2.2  92/04/04  11:35:57  rpd
- *     Fixed for IBM L40's A20 initialization.
- *     [92/03/30            rvb]
- * 
- *     Created.
- *     [92/03/30            mg32]
- * 
+ *
+ *     from: Mach, Revision 2.2  92/04/04  11:35:57  rpd
+ *     $Id$

  */
 
 #include <i386/include/pio.h>
  */
 
 #include <i386/include/pio.h>


@@ -82,6 +71,8 @@ printf(format,data)
 {
        int *dataptr = &data;
        char c;
 {
        int *dataptr = &data;
        char c;

+
+       reset_twiddle();

        while (c = *format++)
                if (c != '%')
                        putchar(c);
        while (c = *format++)
                if (c != '%')
                        putchar(c);


@@ -187,3 +178,25 @@ int len;
        while (len-- > 0)
                *to++ = *from++;
 }
        while (len-- > 0)
                *to++ = *from++;
 }

+
+static int tw_on;
+static int tw_pos;
+static char tw_chars[] = "|/-\\";
+
+reset_twiddle()
+{
+       if (tw_on)
+               putchar('\b');
+       tw_on = 0;
+       tw_pos = 0;
+}
+
+twiddle()
+{
+       if (tw_on)
+               putchar('\b');
+       else
+               tw_on = 1;
+       putchar(tw_chars[tw_pos++]);
+       tw_pos %= (sizeof(tw_chars) - 1);
+}