[Coco] Speed question

[Becker, Gary]

Thanks Derek
 
I was hoping that the standard CoCo would take longer. I was told by the guy who wrote the 6809 code, that it was more efficient than the real CPU. Using your number for the standard, I have added a effective CPU speed.
 
Real                  Effective
CoCo 0.89      = 0.89 MHz
FPGA 0.89     = 1.06 MHz
FPGA 1.79     = 2.11 MHz
FPGA 4.167   = 5.05 MHz
FPGA 12.5     = 14.88 MHz
FPGA 25       = 22.72 MHz
 
This test is not very scientific, but close enough.
 
Gary

________________________________

From: coco-bounces at maltedmedia.com on behalf of Derek
Sent: Fri 8/17/2007 7:48 PM
To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] Speed question



I got 3 Minutes 24.2 Seconds when run on a stock CoCo 3 w/ 128K Ram



"Becker, Gary" <Gary.Becker at amd.com> wrote:
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



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