diff options
| author | Miod Vallat <miod@cvs.openbsd.org> | 2004-07-23 21:00:10 +0000 |
|---|---|---|
| committer | Miod Vallat <miod@cvs.openbsd.org> | 2004-07-23 21:00:10 +0000 |
| commit | 62d1ffc4c99bb035a3957704f73585970ffe9109 (patch) | |
| tree | 6318a548966ab67dca5944fdf39d1f44516f888c /sys/arch | |
| parent | 9acd6e3fbaced078abf76d7d96a963555317abb1 (diff) | |
Better delay code for MVME188. Should make console and network much more
reactive.
Diffstat (limited to 'sys/arch')
| -rw-r--r-- | sys/arch/mvme88k/dev/clock.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/sys/arch/mvme88k/dev/clock.c b/sys/arch/mvme88k/dev/clock.c index 0cf6d10a38c..cb2e4061e38 100644 --- a/sys/arch/mvme88k/dev/clock.c +++ b/sys/arch/mvme88k/dev/clock.c @@ -1,4 +1,4 @@ -/* $OpenBSD: clock.c,v 1.31 2004/07/02 14:00:42 miod Exp $ */ +/* $OpenBSD: clock.c,v 1.32 2004/07/23 21:00:09 miod Exp $ */ /* * Copyright (c) 1999 Steve Murphree, Jr. * Copyright (c) 1995 Theo de Raadt @@ -597,10 +597,13 @@ void delay(int us) { if (brdtyp == BRD_188) { + extern int cpuspeed; + /* * Unable to use a real timer, use a tight loop. + * XXX not accurate! */ - volatile int c = (25 * us) / 3; /* XXX not accurate! */ + volatile int c = (3 * us) / (cpuspeed == 25 ? 4 : 5); while (--c > 0) ; } else { |