[Coco] Semigraphics modes examples

[Salvador Garcia]

Is documentation available on how to get NitrOS9 up and running on the CoCo3 FPGA?


Thanks, Salvador




-----Original Message-----
From: Dave Philipsen <dave at davebiz.com>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Sent: Tue, Aug 4, 2015 11:20 am
Subject: Re: [Coco] Semigraphics modes examples


You can buy a DE-1 (FPGA development board) for $156 + tax & shipping.  
It has
512K SRAM, 4M Flash, 8M SDRAM, VGA, RS232, PS/2, Audio Codec, SD 
card slot and
two expansion ports.  There is more than enough logic on 
the board to
synthesize a CoCo 3, Apple II/e, Commodore, etc.

I am mostly interested in
running NitrOS9 and this board does it well.  
You know how fast a 1.89 MHz CoCo
3 is. Just imagine a computer running 
13 times as fast and you have the CoCo 3
FPGA! Now, it's true that there 
are a few games which may not run on the CoCo 3
FPGA but let's try to 
identify the problems and see if the developer will
correct them.  I 
have personally seen a bunch of stuff that runs well on it
(including 
games) and it's just a great platform for NitrOS9.  A version was
just 
released recently that now supports the SD card under N-OS9. A program

called 'megaread' measures disk (storage) performance. Drivewire at 
115.2k
completes megaread in around 96 seconds (YMMV).  The SD interface 
on the CoCo3
FPGA board with CPU core running at 25 MHz completes it in 
about 3.5
seconds!

On , Stephen Robinson wrote:
> It is also still more expensive to buy
a FPGA board than an original
> CoCo3 anyway right? so there still is probably
not that much
> motivation, except as insurance for the future.
> 
> On Sat, Aug
1, 2015 at 8:34 PM, Nick Marentes <nickma at optusnet.com.au> 
> wrote:
>> On
2/08/2015 1:11 PM, Dave Philipsen wrote:
>>> 
>>> Which software specifically
can you not run that you would like to?
>>> 
>>> The latest can be found at:

>>> https://groups.yahoo.com/neo/groups/CoCo3FPGA
>>> 
>>> Dave Philipsen
>>

>> 
>> I remember trying all my CoCo3 games I wrote and none worked (Rupert 
>>
Rythym,
>> Space Intruders, Pacman, Gate Crasher)
>> 
>> I remember trying some
others and they too failed.
>> 
>> I'll set it up again and try the newest
firmware.
>> 
>> 
>> Nick
>> 
>> 
>> --
>> Coco mailing list
>>
Coco at maltedmedia.com
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