From: "DeHackEd" <Not DOT given AT out>
References: <6be66a$e7i$1 AT herald DOT Mines DOT EDU>
Subject: Re: Keeping speed with slow CPUs
Date: Fri, 6 Feb 1998 19:13:42 -0500
Lines: 63
Message-ID: <ebbEd01M9GA.237@upnetnews03>
Newsgroups: comp.os.msdos.djgpp
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Precedence: bulk

If you are using Allegro, considder installing a timer interupt to do the
following:

void my_timer(/* insert a ... here for C++ */)
{
    timer = 1;
}

And install it with the approprite time. Read the Allegro Docs...
--
"DeHackEd"

EMail address not given out due to low-life spammers.
Jean-Luc Romano wrote in message <6be66a$e7i$1 AT herald DOT Mines DOT EDU>...
>
>
>Hi, again.
>
>   About a week ago I posted a message about the problem of having
>fast computers run my game too fast.  I wanted faster CPUs to
>run my program at a normal speed while slower CPUs run my program
>slower, since I do not want my game to not run at all.  I proposed
>the following code for regulating my event loop:
>
>   while (!quitflag)   /* event loop */
>   {
>      /* Event loop stuff */
>
>      prepare_buffer();
>      regulate();
>      blit(buffer, screen, 0, 0, 0, 0, SCREEN_W, SCREEN_H);
>   }
>
>And my regulate function is:
>
>void regulate()   /* uses the timer to make sure a min amount
>                     of time is spent each event loop */
>{
>   while (timer < 100_milliseconds)  /* has .1 secs passed yet? */
>   {
>      /* Do nothing -- just wait out the timer */
>   }
>   timer = 0;  /* once done waiting, reset the timer */
>}
>
>   George Foot told me this was a working way to prevent faster
>machines from running my game too fast, but slower computers
>would run it too slow (and George, if you are reading this, you may
>want to answer).  He briefly mentioned that there was another way
>to regulate the event loop, one that would not be slower for slower
>computers.
>
>   Would anyone know how I would go about accomplishing this?
>
>   George, you have any suggestions?
>
>   Thanks.
>
>   Jean-Luc Romano
>
>