#!/bin/sh
#
# This script, when installed in your /etc/rc.d directory,
# and when called from e.g. rc.local or rc.M will enable
# various performance and power-saving features on your
# Cyrix 6x86MX CPU.
#
# set6x86 version 1.2 or newer required


BINPATH=/usr/sbin

echo -n "Cyrix 6x86: Suspend-on-Halt"
$BINPATH/set6x86 -p 0xC2 -s 0x08

echo -n ", Fast ADS"
$BINPATH/set6x86 -p 0xC2 -c 0x02

# MAPEN (access to CCR4/5 enabled -- needed for settings below)
$BINPATH/set6x86 -p 0xC3 -s 0x10

echo -n ", Fast IORT"
$BINPATH/set6x86 -p 0xE8 -s 0x07

# Setup ARR6 and RCR6 for a 2 Mb region
# This enables some performance features for the linear memory mapped
# VGA memory buffer, assuming it's on address 0xE7800000.
#
echo -n ", Fast Linear Video Memory"
$BINPATH/set6x86 -p 0xD6 0xE7
$BINPATH/set6x86 -p 0xD7 0x80
$BINPATH/set6x86 -p 0xD8 0x0A
$BINPATH/set6x86 -p 0xE2 0x09


# MAPEN (disable access to CCR4/5)
$BINPATH/set6x86 -p 0xC3 -c 0x10

echo