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

jdaggett at gate.net jdaggett at gate.net
Wed Mar 23 19:14:18 EST 2005


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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