From 9e80202352dd49bdd9e67b8b906d86f058431505 Mon Sep 17 00:00:00 2001 From: Timothy Pearson Date: Sat, 11 May 2019 15:12:49 -0500 Subject: Initial import of abandoned HQEMU version 2.5.2 --- src/roms/qemu-palcode/util.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 src/roms/qemu-palcode/util.c (limited to 'src/roms/qemu-palcode/util.c') diff --git a/src/roms/qemu-palcode/util.c b/src/roms/qemu-palcode/util.c new file mode 100644 index 0000000..1444dd6 --- /dev/null +++ b/src/roms/qemu-palcode/util.c @@ -0,0 +1,39 @@ +/* Utility functions for the QEMU PALcode. + + Copyright (C) 2011 Richard Henderson + + This file is part of QEMU PALcode. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the text + of the GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. If not see + . */ + +#include "protos.h" + + +void +ndelay(unsigned long nsec) +{ + unsigned long target, now; + + /* ??? Fix race between setting an alarm and waiting for an interrupt, + so that we can use wtint here. This isn't used much except for + during startup, so it probably doesn't matter much. */ + + now = get_wall_time(); + target = now + nsec; + + do + now = get_wall_time(); + while (now < target); +} -- cgit v1.1