[Coco] Booting Nitros9.

Dave Philipsen dave at davebiz.com
Tue May 12 00:11:24 EDT 2020


And with the CoCo3FPGA and my CoCoDEV board the megaread completes in about three seconds. I have done some mild optimizations in hardware that have seen it as low as 2.75 seconds.

-Dave

> On May 11, 2020, at 3:51 PM, Mark Marlette <mmarlette at frontiernet.net> wrote:
> 
> Alex,
> The SuperIDE has the data registers split at offset0 and offset8, IIRC.  Thus slower, 8bit width only.
> Now the TC^3 would hit 10-11 seconds depending on the hard drive.
> A lot has to do with the handshaking of the technology used.
> Can you go faster....... :)
> Regards,
> Mark Marlette
> http://www.cloud9tech.com
> mark at cloud9tech.com
> mark at gamecamaddict.com
> 
> 
> On Monday, May 11, 2020, 03:22:20 PM CDT, Alex Evans <varmfskii at gmail.com> wrote: 
> 
> Its for both Super IDE and CoCoSDC on a 6309.
> 
>> On Mon, May 11, 2020 at 3:36 PM Gene Heskett <gheskett at shentel.net> wrote:
>> 
>>> On Monday 11 May 2020 14:49:03 Alex Evans wrote:
>>> 
>>> Also, the best megaread times I observe are closer to 18 than 11
>>> seconds. (additional overhead?)
>> 
>> You're on a 6809 I assume?  That 11 was obtained from a 6309, using the Q
>> register as the bucket. 32 bits at a whack.
>> 
>> Stay safe and well Alex.
>> 
>> Cheers, Gene Heskett
>> --
>> "There are four boxes to be used in defense of liberty:
>>   soap, ballot, jury, and ammo. Please use in that order."
>> -Ed Howdershelt (Author)
>> If we desire respect for the law, we must first make the law respectable.
>>   - Louis D. Brandeis
>> Genes Web page <http://geneslinuxbox.net:6309/gene>
>> 
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