[Coco] Re: Re: CoCo related question? (Better edit for coco3.rom)

[jdaggett at gate.net]

Well it will take more than a simple patch.

james

On 23 Mar 2005 at 15:20, Albert Stinger wrote:

To:             	coco at maltedmedia.com
From:           	"Albert Stinger" 
<albertstinger24 at canada.com>
Date sent:      	Wed, 23 Mar 2005 15:20:40 -0500
Subject:        	[Coco] Re: Re: CoCo related question? 
(Better edit for coco3.rom)
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> So, what your saying is patch the edit command to map in the wasted
> 7376 author bytes with the new code put there and jump into that
> segment. Is it possible to fit a screen editor into 7376 bytes? What
> does a screen editor need to do to make it nice enough?  Things like
> cursor key movement. How much interfacing to Extended Color Basic is
> required for it to work?
> 
> Albert Stinger
> 
> <jdaggett at gate.net> wrote in message 
> news:424183A2.27863.12C4ADB at localhost...
> > Albert
> >
> > Not a lot. The Color basic Rom Code 1.2 from $A000 to $BFFF has
> > about 10 bytes or so. The Extended Color Basic Rom is full and Super
> > Extended basic Rom has 1012 bytes free from $FA0C to FDFF.  Finally
> > DOS 1.1 ROM has 167 bytes free.
> >
> > Not really much room to do a screen type editor.
> >
> > Now if you map the 8K space from $C000 to $DFFF as internal rom and
> > get rid of the author's picture you can recover about  7376 bytes.
> > Otherwise you have about 1172 bytes give take a few. Could be more
> > depending on how much of the old DLOAD code is patched and what
> > isleft of it can be overwritten with a patch.
> >
> >
> > james
> >
> >
> > On 23 Mar 2005 at 13:07, Albert Stinger wrote:
> >
> > To:             coco at maltedmedia.com
> > From:           "Albert Stinger"
> > <albertstinger24 at canada.com>
> > Date sent:      Wed, 23 Mar 2005 13:07:44 -0500
> > Subject:        [Coco] Re: CoCo related question? (Better
> > edit for coco3.rom)
> > Send reply to:  CoCoList for Color Computer Enthusiasts
> > <coco at maltedmedia.com>
> > <mailto:coco-
> > request at maltedmedia.com?subject=unsubscribe>
> > <mailto:coco-
> > request at maltedmedia.com?subject=subscribe>
> >
> >> More questions,
> >>
> >> Exactly how much rom space is available in the coco3 rom and
> >> could be used to make a better edit command?  Where is this
> >> rom space located in the rom image?  What would be the best
> >> way to interface to the edit command so you could have full
> >> screen editing with the cursor keys?
> >>
> >> "Albert Stinger" 
> >> <albertstinger24 at canada.com>
> >> wrote in message news:d1s26r$ipo$1 at sea.gmane.org...
> >> > Is someone or anyone making a slightly better edit for the
> >> > coco3.rom? Please! Full screen editing to go in the wasted rom
> >> > space would be nice.
> >> >
> >> > Albert Stinger.
> >> >
> >> >
> >> >
> >> >
> >> > -- 
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> >> >
> >>
> >>
> >>
> >>
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> 
> 
> 
> 
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