Date   : Mon, 04 Sep 2006 09:28:19 +1000
From   : "Bob Devries" <bdevries@...>
Subject: Re: CC Graphics ROM

Thanks, Sprow, that did the trick.

Now to work out what the commands all do :)
I see the usual turtle graphics (aka Logo) commands to start with.

Hmm, some serious playing to do.

--
Regards, Bob Devries, Dalby, Queensland, Australia

Isaiah 50:4 The sovereign Lord has given me
the capacity to be his spokesman,
so that I know how to help the weary.

website: http://www.home.gil.com.au/~bdevasl
my blog: http://bdevries.invigorated.org/

----- Original Message ----- 
From: "Sprow" <info@...        >
To: <bbc-micro@...         >
Sent: Sunday, September 03, 2006 11:08 PM
Subject: Re: [BBC-Micro] CC Graphics ROM


> In article <00b601c6cf3c$024d3700$0701a8c0@...   >,
>   Bob Devries <bdevries@...       > wrote:
>> Sprow said:
>
>> > The CC graphics I have reports
>> > Graphics Extension 2.09
>> > The Acornsoft one
>> > Acornsoft GXR 1.20
>> > in response to *HELP. Does yours?
>>
>> No. There is no mention of a graphics ROM when I type the *HELP command.
>
> It's probably disabled. This suggests it's the computer concepts one then
> since the Acornsoft one responds even if turned off.
>
> A quick nosey at the disassembly shows top bit of &3A4 is being used, so
>
> ?&3A4=?&3A4 AND127
> *HELP
>
> will wake it up and
>
> *HELP GRAPHICS
>
> lists the commands. Further inspection shows unknown OSBytes (service call
> 7) are filtered off before testing top bit of &3A4, and that a
>
> *FX162,<number>
>
> writes <number> to the flags@&3A4 amongst other things, presumably the
> manual would detail the relevance of other bits in this location,
> Sprow.
>
>
>
>
> -- 
> No virus found in this incoming message.
> Checked by AVG Free Edition.
> Version: 7.1.405 / Virus Database: 268.11.7/436 - Release Date: 1/09/2006
>
>