Dec 312017
 
Simple resident routine that will slowdown the processor by a specified percentage. Includes complete ASM source code.
File SLWDN.ZIP from The Programmer’s Corner in
Category Utilities for DOS and Windows Machines
Simple resident routine that will slowdown the processor by a specified percentage. Includes complete ASM source code.
File Name File Size Zip Size Zip Type
SLOWDOWN.ASM 5317 2240 deflated
SLOWDOWN.COM 496 411 deflated
SLOWDOWN.DOC 1800 965 deflated

Download File SLWDN.ZIP Here

Contents of the SLOWDOWN.DOC file


Program:SLOWDOWN
Version:1.1a
Date:April 5, 1986
Author:David K. Goodwin
Rochester, NY

Description:

This program is a simple resident routine that will slowdown the
processor by a specified percentage. This version is hard-coded to
work correctly when running on an 8MHz 8086 such as the AT&T PC6300.
However, this program will run on any PCompatible computer becuase
all it does is go into a time wasting loop every time the Timer Tick
Interrupt (1Ch) is serviced. Source is provided for hackers who want
to tune the waster loop for a different processor speed.

Invocation:

A>SLOWDOWN

where is a number between 0 and 99. If is zero,
then the routine will disable and lose track of the resident portion
left in memory from a previous call.

Warning:

If you specify a value that approaches 99 percent of your machine
throughput, this routine is perfectly capable of shutting DOS off
of the processor. All you need to do in this case is press the
Hard-Reset button...what?...You say you don't have a reset
button?...Who would design a machine without one?...Ha ha!

Comments:

The reason I wrote this routine is basically that I have a super-
charged machine (AT&T PC6300 w/V30) and some programs and games
that I have acquired from the wonderful world of hackerdom do not
care how fast the processor runs. My computer does not have a switch
or mode-change to slow down the processor.

I am contributing this program to the world of public-domain and I do
not care if you copy, modify, or mutilate it. I do care if someone
attempts to make a buck off my work (although this isn't much work)
so it is:

Copyright (c) 1986
David K. Goodwin
All Rights Reserved



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