[Coco] First experiences with my DE1

[Arthur Flexser]

Nick, there's no patching of Disk Basic, otherwise Super Extended Basic
wouldn't work in a CoCo 3 without Disk Basic.  Only the CoCo Basic and
Extended Basic ROM code is patched, I'm pretty sure.

Art


On Mon, Feb 17, 2014 at 12:21 AM, <nickma2 at optusnet.com.au> wrote:

> Yes Bob. This had me curious but any docs I have found state that ECB
> should be at 0000 in flash RAM.
>
> It must be right because this part is working.
>
> I don't understand the relationship with the Flash RAM locations and
> how they relate to the real address.
>
> The CoCo3 ROM image is 32K so obviously, it occupies the whole upper
> 32K.
>
> How does the CoCo3 deal with Disk Basic?
>
> I know it copies it to RAM and then patches it for Super Extended
> Basic. How is Disk Basic managed?
>
> Nick
>
> ----- Original Message -----
> From: "CoCoList for Color Computer Enthusiasts"
> To:"CoCoList for Color Computer Enthusiasts"
> Cc:
> Sent:Mon, 17 Feb 2014 14:27:42 +1000
> Subject:Re: [Coco] First experiences with my DE1
>
>  Nick,
>
>  I'll admit I know nothing about the DE-1, but in a *real* coco, the
> ECB rom
>  is at 08000 and the DECB is at 0C000. Are the memory locations in the
> flash
>  related to the locations in the real coco? ECB looks at the two bytes
> at
>  0C000 to see if DECB exists.
>
>  Regards, Bob Devries
>  Dalby, QLD, Australia
>
>  ----- Original Message -----
>  From:
>  To: "CoCoList for Color Computer Enthusiasts"
>  Sent: Monday, February 17, 2014 12:44 PM
>  Subject: Re: [Coco] First experiences with my DE1
>
>  > Good startup docs are important. Look at my experiences.
>  >
>  > I've had all sort of problems getting a running system with the
>  > CoCo3FPA yet I had the MSX core downloaded and running in 10
> minutes
>  > because of the easy to follow documentation/website.
>  >
>  > That was a BIG difference.
>  >
>  > In all fairness, Gary's CoCo3FPGA is still in development and
>  > undergoing tweaking. My knowledge on FPGA's is close to ziltch but
> I
>  > managed to get the MSX core up and running easily.
>  >
>  > I have now joined the Yahoo groups so I'll be able to provide Gary
>  > with some feedback once I get my DE1 up and running.
>  >
>  > As an update, I have the CoCo3 running and booting up to Extended
>  > Color Basic. It's operating like a diskless CoCo3.
>  >
>  > My last hurdle (famous last words!) is to get the Disk Basic going.
>  >
>  > ECB went into the FLASH memory at 00000 and while I've put the Disk
>  > Basic at 08000, it doesn't boot to it.
>  >
>  > After this, hopefully I can access DSK image files off the
> SDCard...
>  > I'm assuming that is how it works. Many things to discover....
>  >
>  > Nick
>  >
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