[Coco] Disto 512k upgrade board
Mark Marlette
mmarlette at frontiernet.net
Thu Dec 12 15:41:19 EST 2013
Short of going in and look at the disam...I'll take your word.
I do recall that ECB looks for the 'D' and inits if not present. In my testing, this has worked. ???
I will try your suggestion in the future.
Thanks!!!!
________________________________
From: William Astle <lost at l-w.ca>
To: coco at maltedmedia.com
Sent: Thursday, December 12, 2013 2:30 PM
Subject: Re: [Coco] Disto 512k upgrade board
On 13-12-12 01:10 PM, Mark Marlette wrote:
> No 20 count......
>
> POKE 113,0:POKE 49152,0:EXEC40999
>
How does zeroing out the first byte of the DECB range help anything? All
that'll do is stop extended basic from initializing DECB.
For a proper cold start, better to EXEC&H8C1B (35867) on a coco3 - that
will actually trigger the internal boot rom. 40999 (A027) does not.
Triggering the internal rom will recopy the ROMs to RAM which may be
helpful if you messed something up.
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