[Coco] Speed question

[Becker, Gary]

Bob Devries

Originally, I had a problem with the internal clock hardware that made
the time run two times faster than it should. When I ran the tests in
Disk Extended BASIC, I used my Windows based machines clock to give me
the times. When I ran the test with Basic09, I used the time that it
printed. When the time was just about double the time you mentioned, I
assumed I still had a double speed clock and cut the times in half. I
now have looked and the clock is correct. So the times should be
doubled. This brings up the question, why is my Basic09 programming run
half the speed as yours? What video mode were you using? I was running
the 80 character mode that was the default with the NitrOS-9 version I
downloaded.

I have fixed the numbers below.

Gary

-----Original Message-----
From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com]
On Behalf Of Becker, Gary
Sent: Friday, August 24, 2007 1:04 PM
To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] Speed question

I loaded up Basic09 and got these results.

1.79 MHz	4 min 32 sec
4.167 MHz	1 min 54 sec
12.5 MHz	38 sec
25 MHz	21 sec

What about:

#include <stdio.h>
main()
{
	int	a;
	for(a=0; a<=10000; a++)
		printf("%d\n",a);
}

I'll let you know when I get the C compiler running.

Gary

-----Original Message-----
From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com]
On Behalf Of Bob Devries
Sent: Friday, August 17, 2007 8:36 PM
To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] Speed question

Just to be different, I used Basic09 to do that. Here's my source:

DIM A:REAL
D$=DATE$
FOR A=1 TO 10000.
PRINT A
NEXT A
PRINT D$
PRINT DATE$
END

This took 2 minutes 38 seconds on my 1MB Coco3 running NitrOS9 V030206.
With 
Basic09 running in interpreted mode (I.e. not PACKED). NitrOS9 of
course, 
runds in high speed mode.

--
Regards, Bob Devries, Dalby, Queensland, Australia

Isaiah 50:4 The sovereign Lord has given me
the capacity to be his spokesman,
so that I know how to help the weary.

website: http://www.home.gil.com.au/~bdevasl
my blog: http://bdevries.invigorated.org/

----- Original Message ----- 
From: "Becker, Gary" <Gary.Becker at amd.com>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Saturday, August 18, 2007 7:43 AM
Subject: [Coco] Speed question


>
> I am trying to gauge the speed of the CoCo3FPGA with a real CoCo3. I
am
> running a simple BASIC program.
>
> 10 FOR A=0 TO 10000
> 20 PRINT A
> 30 NEXT A
>
> Can someone with a real CoCo type in this simple program, time how
long
> it takes, and send me back the results? I would like to see 6809 and
> 6309 runs. It can be run at either the standard speed or the fast
speed,
> since it scales nicely. Here is a list of the ones that I have taken.
>
> 0.89 MHz 172 sec.
> 1.79 MHz 86 sec
> 4.167 MHz 36 sec
> 12.5 MHz 25 sec
> 25 MHz 8 sec (really 21.875 MHz)
>
>
> Thanks
>
> Gary
>
>
>
> --
> Coco mailing list
> Coco at maltedmedia.com
> http://five.pairlist.net/mailman/listinfo/coco 


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