[Coco] CoCo-XT RTC ROM and disk

John Mautz ejmautz2 at gmail.com
Sat Sep 1 20:35:27 EDT 2018 

Sure.  Here is the link....

https://www.hhdsoftware.com/free-hex-editor

On Sat, Sep 1, 2018 at 8:02 PM rietveld rietveld <rietveldh at hotmail.com>
wrote:

> Maybe post a link to the Hex Editor for others on the LIST. It's a free
> editor and very easy to use.
> It's fun to open up radio Shack rom paks with it and look at the code.
> Some is written very tightly others look like spaghetti code
>
> Sent from my BlackBerry
>   Original Message
> From: John Mautz
> Sent: Saturday, September 1, 2018 7:29 PM
> To: CoCoList for Color Computer Enthusiasts
> Reply To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] CoCo-XT RTC ROM and disk
>
>
> One additional update.  I put the old 5M hard drive on the controller w/
> the updated 3.0 ROM and it does boot to OS9 HD.  So that is a good thing!!
> :)
>
> On Sat, Sep 1, 2018 at 7:21 PM John Mautz <ejmautz2 at gmail.com> wrote:
>
> > Rietveld,
> >
> > I didn't get your email with the editor, but since you posted the name, I
> > was able to download it (maybe google ate it if were an exe file).  There
> > are 5 bytes on the XTROM30.bin file at the beginning that are not on the
> 23
> > ROM, so I nuked those saved as a test and burned a ROM.  I now get the
> boot
> > logo COCO3 XT-ROM VERSION 3.0 and it does tests the first 512K of memory
> in
> > my CoCo3.  So that is progress.
> >
> > I'm not sure where the end of the program really is so I didn't try to
> > chop anything off the ROM bin file.
> >
> > They put an Easter egg of the the game of Life so I can see some of that
> > test in the ROM file so at least to me it makes it hard to tell where the
> > end of the ROM is vs the junk.
> >
> > Now with the splash screen and memory checker in place, there is at least
> > one difference...  On the 2.3 ROM if I turn the hard drive off, it
> check's
> > the floppy drive and then dumps to a READY prompt.  With the state of my
> > 3.0 ROM, it just sits there after the memory check.  So still more work
> to
> > do but things are better.  If someone knows this ROM magic, I'm willing
> to
> > share my 2.3 and edited 3.0 file.
> >
> > Thanks,
> > John.
> >
> > On Sat, Sep 1, 2018 at 5:25 PM rietveld rietveld <rietveldh at hotmail.com>
> > wrote:
> >
> >> I just sent neo to you. It's a small single. Exe.    Open one window
> with
> >> the old rom and a second neo window with the new rom.   Comapre the
> start
> >> and end of the two and delete and save as needed
> >>
> >> Sent from my BlackBerry
> >>   Original Message
> >> From: rietveld rietveld
> >> Sent: Saturday, September 1, 2018 5:22 PM
> >> To: Jim McClanahan
> >> Reply To: CoCoList for Color Computer Enthusiasts
> >> Subject: Re: [Coco] CoCo-XT RTC ROM and disk
> >>
> >>
> >> Use the program HDD Hex Editor Neo for Windows
> >> I will email it to you right now
> >>
> >> Basically use it to open your old rom
> >>
> >> Now open the new rom(.bin) and compare the beginning. Just delete until
> >> you get to the same start as the known working one. That will remove the
> >> header. Now scroll to to the bottom of the new rom and compare it to the
> >> bottom of the known working one. Delete any values after the end of the
> >> original
> >>
> >>
> >>
> >> Sent from my BlackBerry
> >>   Original Message
> >> From: Jim McClanahan
> >> Sent: Saturday, September 1, 2018 5:06 PM
> >> To: CoCoList for Color Computer Enthusiasts
> >> Reply To: CoCoList for Color Computer Enthusiasts
> >> Subject: Re: [Coco] CoCo-XT RTC ROM and disk
> >>
> >>
> >> You'll know the length of the header. (It won't be long--I'm not
> familiar
> >> with CoCo binaries, but maybe a load and an entry address at most.) Then
> >> you have to figure out how to remove them. I have read how to do it
> before
> >> but don't remember the details.
> >>
> >> Good news is it is probably just sorting through a few steps and
> reburning
> >> the eprom.
> >>
> >> Jim
> >>
> >> On Sat, Sep 1, 2018, 4:54 PM John Mautz <ejmautz2 at gmail.com> wrote:
> >>
> >> > Ok, I'll have to spend some time looking.  When I find it, then what?
> >> >
> >> > On Sat, Sep 1, 2018 at 3:16 PM Jim McClanahan <jim30109 at gmail.com>
> >> wrote:
> >> >
> >> > > The first two locations are an ASCII flag. On the working one you
> have
> >> > > "DK", but the nonworking one doesn't make sense.
> >> > >
> >> > > I think think the point about having a header you need to pull out
> is
> >> > spot
> >> > > on. Peek a few more locations higher and you will likely find the
> "DK"
> >> > > again.
> >> > >
> >> > > Thanks,
> >> > > Jim
> >> > >
> >> > > On Sat, Sep 1, 2018, 11:47 AM John Mautz <ejmautz2 at gmail.com>
> wrote:
> >> > >
> >> > > > Dave,
> >> > > > I have a Multi-Pack....  CoCo-XT is in slot 3.
> >> > > >
> >> > > > working v2.3
> >> > > >     PEEK(&HC000) = 68
> >> > > >     PEEK(&HC001) = 75
> >> > > >
> >> > > > Not working v3.0 - fresh burn
> >> > > >     PEEK(&HC000) = 171
> >> > > >     PEEK(&HC001) = 186
> >> > > >
> >> > > > Thanks,
> >> > > > John.
> >> > > >
> >> > > >
> >> > > > On Sat, Sep 1, 2018 at 11:32 AM Dave Philipsen <dave at davebiz.com>
> >> > wrote:
> >> > > >
> >> > > > > Yeah, with the controller plugged in with the new ROM, what do
> you
> >> > get
> >> > > > > when you PEEK(&HC000) and PEEK(&HC001)?
> >> > > > >
> >> > > > > Dave
> >> > > > >
> >> > > > > > On Sep 1, 2018, at 10:29 AM, Jim McClanahan <
> jim30109 at gmail.com
> >> >
> >> > > > wrote:
> >> > > > > >
> >> > > > > > Can you PEEK () the ROM from BASIC? That would tell you if the
> >> ROM
> >> > > was
> >> > > > on
> >> > > > > > the bus and what the contents are.
> >> > > > > >
> >> > > > > > Not exactly sure what you are doing, so that may not be
> helpful.
> >> > But
> >> > > my
> >> > > > > > experience with EPROMs is that if they erase and I can
> >> successfully
> >> > > > > verify
> >> > > > > > the write, they work. In my homebrew systems it is usually a
> >> wiring
> >> > > or
> >> > > > > > timing problem when they don't.
> >> > > > > >
> >> > > > > > good luck,
> >> > > > > > Jim
> >> > > > > >
> >> > > > > >> On Sat, Sep 1, 2018, 11:21 AM John Mautz <ejmautz2 at gmail.com
> >
> >> > > wrote:
> >> > > > > >>
> >> > > > > >> Ok, received my tube of 2764A chips.  I've tried twice (each
> >> with
> >> > a
> >> > > > new
> >> > > > > >> chip) and when I put it in my CoCo-XT card it does not
> >> recognize
> >> > the
> >> > > > > >> CoCo-XT.  It just boots to the normal CoCo3 screen.  When I
> put
> >> > the
> >> > > > old
> >> > > > > >> v2.3 ROM back it it boots fine so I didn't blow that part up.
> >> > Both
> >> > > > > chips
> >> > > > > >> passed verification, so that should be fine.
> >> > > > > >>
> >> > > > > >> I'm using a USBPrg GQ-4X programmer (mine is the 4x not the
> 4x4
> >> > > which
> >> > > > is
> >> > > > > >> the current version -
> >> > > > > >>
> >> > > > >
> >> > > >
> >> > >
> >> >
> >>
> http://www.mcumall.com/comersus/store/comersus_viewItem.asp?idProduct=4282
> >> > > > > >> ,
> >> > > > > >> only for reference to help me out not an advertisement, as
> >> > naturally
> >> > > > I'm
> >> > > > > >> having trouble).  When I open the XT-ROM30.Bin, I have a
> >> choice of
> >> > > > Read
> >> > > > > >> mode, Fill Mode and File offset. I just chose defaults, Read
> >> Mode
> >> > =
> >> > > > > Normal,
> >> > > > > >> Fill Mode = Normal, File Offset = 000000.
> >> > > > > >>
> >> > > > > >> Before I start the trial and error process of burn, test, UV
> >> > erase,
> >> > > > does
> >> > > > > >> anyone have any guidance?
> >> > > > > >>
> >> > > > > >> Thanks,
> >> > > > > >> John.
> >> > > > > >>
> >> > > > > >>> On Mon, Aug 27, 2018 at 10:35 PM John Mautz <
> >> ejmautz2 at gmail.com>
> >> > > > > wrote:
> >> > > > > >>>
> >> > > > > >>> Thank you all.  I'm just waiting on my EPROMS to arrive and
> I
> >> can
> >> > > > start
> >> > > > > >>> playing.  You help is much appreciated.
> >> > > > > >>>
> >> > > > > >>> On Mon, Aug 27, 2018 at 4:23 PM rietveld rietveld <
> >> > > > > rietveldh at hotmail.com
> >> > > > > >>>
> >> > > > > >>> wrote:
> >> > > > > >>>
> >> > > > > >>>> I actually have 3.1 or 3.01.    I can upload that if it's
> >> not in
> >> > > the
> >> > > > > >>>> archive. As far as I know that was the final release.
> >> > > Unfortunately
> >> > > > I
> >> > > > > >> don't
> >> > > > > >>>> think I have the manual for it but I definitely have the
> ROM
> >> > > > > >>>>
> >> > > > > >>>> Sent from my BlackBerry 10 smartphone.
> >> > > > > >>>>  Original Message
> >> > > > > >>>> From: tonym
> >> > > > > >>>> Sent: Monday, August 27, 2018 4:14 PM
> >> > > > > >>>> To: coco at maltedmedia.com
> >> > > > > >>>> Reply To: CoCoList for Color Computer Enthusiasts
> >> > > > > >>>> Subject: Re: [Coco] CoCo-XT RTC ROM and disk
> >> > > > > >>>>
> >> > > > > >>>>
> >> > > > > >>>> Pretty sure I uploaded the 3.0 ROM, and manual, a few years
> >> > back.
> >> > > > > might
> >> > > > > >>>> be on "THE ftp" though...
> >> > > > > >>>>
> >> > > > > >>>> Tony
> >> > > > > >>>>
> >> > > > > >>>>
> >> > > > > >>>> ---- Original Message ----
> >> > > > > >>>> From: "Grumpyx" <grumpyx at gmail.com>
> >> > > > > >>>> Sent: 8/26/2018 9:39:03 PM
> >> > > > > >>>> To: "CoCoList for Color Computer Enthusiasts" <
> >> > > coco at maltedmedia.com
> >> > > > >
> >> > > > > >>>> Subject: Re: [Coco] CoCo-XT RTC ROM and disk
> >> > > > > >>>>
> >> > > > > >>>> The color computer archive has them:
> >> > > > > >>>>
> >> > > > > >>>>
> >> > http://www.colorcomputerarchive.com/search?q=burke&ww=0&cat=&cs=0
> >> > > > > >>>>
> >> > > > > >>>> The XT-ROM zip file has several version including 3.0
> >> > > > > >>>>
> >> > > > > >>>>
> >> > > > > >>>>
> >> > > > > >>>>> On Sat, Aug 25, 2018 at 6:55 PM John Mautz <
> >> ejmautz2 at gmail.com
> >> > >
> >> > > > > wrote:
> >> > > > > >>>>>
> >> > > > > >>>>> Hello,
> >> > > > > >>>>>
> >> > > > > >>>>> I picked up a CoCo-XT RTC a few months ago.  It works
> great
> >> as
> >> > it
> >> > > > > came
> >> > > > > >>>> with
> >> > > > > >>>>> what I was told is a 5MB HD.  My CoCo-XT has the Western
> >> > Digital
> >> > > > > >>>> 1002A-WX1
> >> > > > > >>>>> card int it.  When it boots it show the Burke & Burke ROM
> >> > version
> >> > > > to
> >> > > > > >> be
> >> > > > > >>>>> 2.3.  I don't see a version on the CoCo-XT RTC card (other
> >> than
> >> > > the
> >> > > > > >>>>> copyright 1988, though it could be on the back of the
> card).
> >> > > > I've
> >> > > > > >>>> doing
> >> > > > > >>>>> some searches for about a week now and I must be searching
> >> the
> >> > > > wrong
> >> > > > > >>>> way as
> >> > > > > >>>>> I'm not finding any hits.
> >> > > > > >>>>>
> >> > > > > >>>>> This brings me to my 2 questions:
> >> > > > > >>>>> 1) Does anyone have a newer version of the ROM?  If so can
> >> you
> >> > > > > >> provide a
> >> > > > > >>>>> link or send it to me?  I have searched around and all I
> can
> >> > find
> >> > > > is
> >> > > > > >> the
> >> > > > > >>>>> manual for version 2.4 and a 2.5 supplement. - BTW: I'm
> >> willing
> >> > > to
> >> > > > > >> read
> >> > > > > >>>> and
> >> > > > > >>>>> upload my version 2.3 ROM if someone wants it.
> >> > > > > >>>>>
> >> > > > > >>>>> 2) Has anyone see the disk imaged some place?  I've looked
> >> and
> >> > I
> >> > > > seen
> >> > > > > >>>> where
> >> > > > > >>>>> it used to be sold for $24.99 but no links to the actual
> >> > > software.
> >> > > > > >>>>>
> >> > > > > >>>>> So other than completeness, why do I ask?  I was able to
> >> get a
> >> > > > Tandy
> >> > > > > >>>> 20MB
> >> > > > > >>>>> external hard drive.  The PS was dead so I replaced that
> and
> >> > > would
> >> > > > > >> like
> >> > > > > >>>> to
> >> > > > > >>>>> use the Seagate ST-225 that came with it.  Therefore I
> need
> >> the
> >> > > > disk
> >> > > > > >>>> with
> >> > > > > >>>>> the utilities on it.
> >> > > > > >>>>>
> >> > > > > >>>>> Thanks,
> >> > > > > >>>>> John.
> >> > > > > >>>>>
> >> > > > > >>>>> --
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> >> > > > > >>>>> Coco at maltedmedia.com
> >> > > > > >>>>> https://pairlist5.pair.net/mailman/listinfo/coco
> >> > > > > >>>>>
> >> > > > > >>>>
> >> > > > > >>>> --
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> >> > > > > >>>>
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> >> > > > > >>>>
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> >> > > > > >>>>
> >> > > > > >>>
> >> > > > > >>
> >> > > > > >> --
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> >> > > > > >>
> >> > > > > >
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> >> > > > >
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> >> > > > >
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> >> > > >
> >> > >
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> >> > >
> >> >
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> >> >
> >>
> >> --
> >> Coco mailing list
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> >>
> >> --
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> >>
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> >>
> >
>
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