[Coladam] Call the new Adam Colecovision II

shonmccallum at juno.com shonmccallum at juno.com
Wed Oct 24 19:28:40 CEST 2012


One could make a improved ADAM and call it a Colecovision II (becomes a ADAM with add on optional USB keyboard and other optional USB devices). Most people use their ADAM these days for classic Supergames. While I would be interested in a improved ADAM, the demand will be a lot less once the ADAM Supergames are ported over to the Colecovision supergame module.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />
            Making a ColecoVision II that is ADAM compatible would sell several thousand. Since consumers would be willing to purchase a modern Colecovisoion II  with a HDMI output for modern displays. A Colecovision II could be sold to Walmart and other retail stores. In the 80’s millions of Colecovisions were sold but in the 21st Century under 10,000 ColecoVision II’s could be sold if the quality was overall better than the original. 


---------- Original Message ----------
From: coladam-request at adamcon.org
To: coladam at adamcon.org
Subject: Coladam Digest, Vol 88, Issue 12
Date: Wed, 24 Oct 2012 14:27:34 +0200

Send Coladam mailing list submissions to
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Today's Topics:

  1. Re: Coladam Digest, Vol 88, Issue 9 (Steve Pitman)
  2. Re: Coladam Digest, Vol 88, Issue 7 (shonmccallum at juno.com)


----------------------------------------------------------------------

Message: 1
Date: Wed, 24 Oct 2012 07:26:40 -0400
From: Steve Pitman <swp at cinci.rr.com>
Subject: Re: [Coladam] Coladam Digest, Vol 88, Issue 9
To: Eduardo Mello <eduardo at opcodegames.com>
Cc: "coladam at adamcon.org" <coladam at adamcon.org>
Message-ID: <1EE3666C-B642-4B29-A165-559126D340DC at cinci.rr.com>
Content-Type: text/plain; charset=us-ascii

Maybe you should check out kickstarter.com,  a lot of projects get funded that way, it's worth the try.  An Android based console got funded 8 1/2 million dollars on there recently (they were only asking for like $900,000) and it's coming out next year for $99. Not saying you would get anywhere near that for Colecovision/Adam of course but something is better than nothing.


Sent from my iPad

On Oct 23, 2012, at 11:49 PM, Eduardo Mello <eduardo at opcodegames.com> wrote:

> Jim,
> 
> Now how about something a little more advanced than that. How about an
> improved ADAM.
> Because once the SGM is out, I was planning to start working to on an
> improved ColecoVision. So we would expand on that and have an improved
> ADAM based on the new CV architecture. Of course we would need to add
> ADAMnet, which I am not totally familiar with, but I guess that can be
> emulated by a large CPLD.
> 
> For the new CV I am planning a Z80 at 7.14MHz, with software
> selectable clock, a V9958 for video, which is TMS9928 compatible but
> offers a number of interesting improvements specially for computer
> applications. It has four new bitmap modes, maximum resolution of
> 512x424 interlaced, 256 simultaneous RGB colors on screen, and a 80
> columns text mode. 16 programmable color palettes from 512 colors on
> all modes, hardware scroll. It also offers a special variation of the
> 256 color modes where we can have 19,000 colors on screen, using YJK
> encoding (a kind of JPEG variation). The V9958 also offers a blitter,
> like some 16 bits from the 80s.
> In addition to that a DMA and interruption controllers. And a couple
> of new sound chips, the extra PSG from the SGM + a YM2151, awesome for
> music.
> 
> For the ADAM variation we would add a RTC, a more flexible and
> powerful MMU (perhaps allowing 16MB of RAM to be mapped), a few on
> board connection ports like serial and parallel, and of course
> ADAMnet. And was you mentioned, SD. Perhaps even ethernet, I know that
> you can buy an ethernet controller those days that even includes a
> TCP/IP stack, so you don't need to implement that by software, which
> would be very inefficient anyway using a Z80.
> 
> So it would still keep the retro flavor of the original, but expand on
> many areas. Of course I would need help with the base software stuff,
> like OS, BIOS, etc.
> 
> But I believe that with good planning it would be possible.
> 
> Eduardo
> 


------------------------------

Message: 2
Date: Tue, 23 Oct 2012 21:52:11 GMT
From: "shonmccallum at juno.com" <shonmccallum at juno.com>
Subject: Re: [Coladam] Coladam Digest, Vol 88, Issue 7
To: jnoti2 at comcast.net
Cc: coladam at adamcon.org
Message-ID: <20121023.175211.20077.0 at webmail02.vgs.untd.com>
Content-Type: text/plain; charset=windows-1252

               Also it might be possible to emulate a Adam computer by only using the Ultimate SD cartridge and a Colecovision. A Adam Supergame emulator could simulate a Digital Date Drive and then all Games that only use the Colecovision controller would work without a patch to every supergame. Just games that need to keyboard would need special patches for a USB keyboard. <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />


---------- Original Message ----------
From: "Jim Notini" <jnoti2 at comcast.net>
To: <shonmccallum at juno.com>, <coladam at adamcon.org>
Subject: Re: [Coladam] Coladam Digest, Vol 88, Issue 7
Date: Tue, 23 Oct 2012 16:01:48 -0500

Great idea Shon! All that's needed now is to find someone to recode the 1K 
EOS-HD Boot Loader.

----- Original Message ----- 
From: <shonmccallum at juno.com>
To: <coladam at adamcon.org>
Sent: Monday, October 22, 2012 11:16 PM
Subject: Re: [Coladam] Coladam Digest, Vol 88, Issue 7


> The Atarimax Ultimate SD cartirdge could be used as a boot cartridge if 
> someone spends the time to do so. Just like the old SmartBasic and Walters 
> EOS boot cartridges.
>
> ---------- Original Message ----------
> From: coladam-request at adamcon.org
> To: coladam at adamcon.org
> Subject: Coladam Digest, Vol 88, Issue 7
> Date: Tue, 23 Oct 2012 03:14:19 +0200
>
> Send Coladam mailing list submissions to
> coladam at adamcon.org
>
> To subscribe or unsubscribe via the World Wide Web, visit
> http://adamcon.org/cgi-bin/mailman/listinfo/coladam
> or, via email, send a message with subject or body 'help' to
> coladam-request at adamcon.org
>
> You can reach the person managing the list at
> coladam-owner at adamcon.org
>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Coladam digest..."
>
>
> Today's Topics:
>
>  1. Homebrew CV cartridges (Kevin Powers)
>  2. Re: CV/ADAM controllers hot-swappable? (Kevin Powers)
>  3. Re: CV/ADAM controllers hot-swappable? (Kevin Powers)
>  4. ColecoVision Super Game Module available for orders
>     (Eduardo Mello)
>  5. Re: CV/ADAM controllers hot-swappable? (Jim Notini)
>  6. Re: Homebrew CV cartridges (Jim Notini)
>  7. Re: Homebrew CV cartridges (Frances and/or Richard Clee)
>  8. Re: CV/ADAM controllers hot-swappable?
>     (Frances and/or Richard Clee)
>  9. Fwd:  Homebrew CV cartridges (Eduardo Mello)
> 10. running Super Games from HD (Rich Drushel)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 22 Oct 2012 09:04:57 -0400
> From: Kevin Powers <kjpmail at gmail.com>
> Subject: [Coladam] Homebrew CV cartridges
> To: coladam at adamcon.org
> Message-ID:
> <CAB1UwGWfy2y0WBYwzZmpq6QqpTj9Vs0VS3mMp71chHGDE6ZQhw at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> It looks like Opcode Games is sold out of the Pac-Man Collection & Space
> Invaders Collection carts.  Does that mean they're gone forever & cannot 
> be
> ordered?
>
>
> ------------------------------
>
> Message: 2
> Date: Mon, 22 Oct 2012 10:19:18 -0400
> From: Kevin Powers <kjpmail at gmail.com>
> Subject: Re: [Coladam] CV/ADAM controllers hot-swappable?
> To: coladam at adamcon.org
> Message-ID:
> <CAB1UwGUAr_qu1Cnsoabzik83EJ8+ryFkVWK5+VaJTbgu0=GWDw at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Would it be possible to create a custom cartridge that would serve as a
> boot loader for the IDE/CF from the cartridge slot?
> I'm concerned about the tapes becoming unreliable over time. If a cart
> could boot the IDE/CF then that would take the tape thing out of the loop.
>
>
> ------------------------------
>
> Message: 3
> Date: Mon, 22 Oct 2012 10:20:05 -0400
> From: Kevin Powers <kjpmail at gmail.com>
> Subject: Re: [Coladam] CV/ADAM controllers hot-swappable?
> To: coladam at adamcon.org
> Message-ID:
> <CAB1UwGX_TDdwrOaSAfzfV+Eo4RMtNAyMr4uQYYCEuRLZ3ure-Q at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Would it be possible to create a custom cartridge that would serve as a
> boot loader for the IDE/CF from the cartridge slot?
>
> I'm concerned about the tapes becoming unreliable over time.  If a cart
> could boot the IDE/CF then that would take the tape thing out of the loop.
>
>
> ------------------------------
>
> Message: 4
> Date: Mon, 22 Oct 2012 10:40:37 -0400
> From: Eduardo Mello <eduardo at opcodegames.com>
> Subject: [Coladam] ColecoVision Super Game Module available for orders
> To: coladam at adamcon.org
> Message-ID:
> <CAPKMOcNOCY-2BjqCFo7icUwajZLX+v2qUe6s8um3ww5AhGfyrA at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Hi,
>
> I was going to post the full text here, but it is easier if you follow
> the link and check the most up to date information:
>
> http://www.atariage.com/forums/topic/203362-super-game-module-now-available-for-order/
>
> Thanks,
>
> Eduardo
>
>
> ------------------------------
>
> Message: 5
> Date: Mon, 22 Oct 2012 17:41:50 -0500
> From: "Jim Notini" <jnoti2 at comcast.net>
> Subject: Re: [Coladam] CV/ADAM controllers hot-swappable?
> To: "Kevin Powers" <kjpmail at gmail.com>
> Cc: coladam at adamcon.org
> Message-ID: <22DD5C8AA5C649F681114CDD55F23B79 at HomePC>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Yeah, sad state of affairs, but right now, this is the best that can be 
> done. A gentleman that goes by the name of Else on AtariAge has developed 
> an ADAMnet SD Drive that allows for the loading of Disk Images and it 
> works, but no one has heard from him in over a year... big bummer there. 
> It was demoed at an ADAMcon a couple years ago and there is a lengthy 
> thread on AtariAge discussing it... just search for ADAMnet SD Drive.
>
> To answer your questions:
>
> 1) You can play Buck via DDP or Disk, that's it for now.
>
> 2) There is more ADAM software that WILL work with the IDE/CF package than 
> will not work and I'm plugging away at all the best titles. SmartLOGO, 
> SmartBASIC, some utilities, most Homerew games will indeed work.
>
> 3) An IDE Boot Cartridge is a very good idea although I would prefer a 
> Boot Prom that would install in a Parallel Interface Card with the 
> available open socket
>
> ----- Original Message ----- 
> From: Kevin Powers
> To: Jim Notini
> Cc: Steve Pitman ; coladam at adamcon.org
> Sent: Sunday, October 21, 2012 9:35 PM
> Subject: Re: [Coladam] CV/ADAM controllers hot-swappable?
>
>
> That is some of the saddest news that I have ever heard.  I absolutely 
> love Super Buck Rogers Planet Of Zoom and it would break my heart if, 
> years hence, I was unable to ever play it on a real live ADAM again. 
> :-(  I had been hoping that this would be the solution.
>
> New questions:
>
> 1) So you're saying that if I want to make Buck live forever, I'm going to 
> have to eventually get a floppy drive?
>
> 2) How about SmartLogo and other stuff?  Utility programs?  BASIC 
> programs/games?  Homebrew games that were released on tape/disk?  Can all 
> of that stuff be put on the IDE/CF?
>
>
>
>
> On Sun, Oct 21, 2012 at 10:14 PM, Jim Notini <jnoti2 at comcast.net> wrote:
>
>   Unfortunately all the Coleco made Super Games are NOT compatible with 
> the IDE setup as was the case with other ADAM Hard Drives from back in the 
> day. The Super Games are contained on non-standard EOS media due to the 
> fact that they don't contain a standard directory, they load by reading 
> specific block #'s, so very unlikely that they will ever be hacked/patched 
> to work.
>
>   You don't copy DDP / DISK images to the partitions, you copy the actual 
> files, image files are only useable via emulators in Windows PCs or Macs.
>
>   The max number of EOS partitions (10) is limited by the setup program 
> which was written back in 1991.
>
>   A DDP or Disk with the boot loader to gain access to the IDE/CF is 
> required.
>
>     ----- Original Message ----- 
>     From: Kevin Powers
>     To: Jim Notini
>     Cc: Steve Pitman ; coladam at adamcon.org
>     Sent: Sunday, October 21, 2012 8:43 PM
>     Subject: Re: [Coladam] CV/ADAM controllers hot-swappable?
>
>
>     Jim & Co.,
>
>     I'd like to follow up on your IDE/CF issue.  I'm considering saving up 
> to eventually get one of those drives from Bob.  It's not clear to me 
> whether/how it would be possible to include on the CF a complete set of 
> the various Super Game Packs, SmartLOGO, etc.  Would each tape/disk image 
> need its own partition?  If so, is the number of partitions limited to the 
> number that it comes with?
>
>     Basically, I'm worried that I would get the drive but find myself 
> still having to use tapes (I neither have nor can afford an ADAM disk 
> drive!) to run Super Back Rogers, which is one of my all-time favorites, 
> or the various other Super Game Packs that I didn't get to play years ago 
> but would very much like to play today.
>
>     (Also, is it possible to boot into the IDE/CF without using a cassette 
> to "bootstrap" it?  Or is the initial cassette necessary to get over to 
> the IDE?)
>
>     Thanks,
>     Kevin
>
>
>
>
>     On Sun, Oct 21, 2012 at 9:27 PM, Jim Notini <jnoti2 at comcast.net> 
> wrote:
>
>       Hey Steve, great to hear from you and sorry that I haven't kept in 
> touch. I may have to pick your brain as I've been working going to town 
> setting up EOS software to run thru EOS-HD by Tony Morehen as I recently 
> picked up an IDE Card and an IDE Compact Flash Drive (other IDE drives 
> will work as well) from Bob Slopsema. It took me about a week, on and off, 
> to figure out how to get Temple of the Snow Dragon to work and there are 
> some others that are giving me fits that I'd might need some help if you 
> have some free time.
>
>       I'll put some stuff together and email it to you in the next day or 
> two.
>
>       As I mentioned, the ADAM (with built-in ColecoVision) is a lot less 
> prone to this controller issue.
>
>       ----- Original Message ----- From: "Steve Pitman" <swp at cinci.rr.com>
>       To: "Jim Notini" <jnoti2 at comcast.net>
>       Cc: "Kevin Powers" <kjpmail at gmail.com>; <coladam at adamcon.org>
>       Sent: Sunday, October 21, 2012 4:53 PM
>
>       Subject: Re: [Coladam] CV/ADAM controllers hot-swappable?
>
>
>       Yeah, I definitely don't recommend swapping them while the system is 
> on.  My wife did that on one of my Adams years ago and it did damage it. 
> Well... It was actually the Colecovision that was damaged since I was 
> using the expansion module Adam. The Colecovision was totally dead though, 
> I had to have the board replaced.
>
>
>
>       On Oct 21, 2012, at 4:53 PM, "Jim Notini" <jnoti2 at comcast.net> 
> wrote:
>
>
>         In hindsight.... YES!
>
>         The likiehood of blowing these IC Chips on the improved 
> ColecoVision PCB in the ADAM is less likely than blowing it on a real 
> ColecoVision Game System. BITD I used to change out controllers with the 
> system on all the time without any problems, but now I practice a lot more 
> caution with all this old equipment.
>
>          ----- Original Message -----  From: Kevin Powers
>          To: Jim Notini
>          Cc: coladam at adamcon.org
>          Sent: Sunday, October 21, 2012 3:07 PM
>          Subject: Re: [Coladam] CV/ADAM controllers hot-swappable?
>
>
>          Well... wouldn't you say that if swapping out controllers with 
> the power on could lead to a blown chip, then the controllers are not 
> really hot-swappable?
>
>
>
>          On Sun, Oct 21, 2012 at 4:06 PM, Jim Notini <jnoti2 at comcast.net> 
> wrote:
>
>            Yes, you can switch the controllers anytime you want and even 
> switch between the standard controllers and one of the additional 
> controllers (Driving Module, Roller Controller, Super Action) while the 
> system is ON. However, I don't recommend that you do this as eventually 
> this method could lead to a blown Controller IC Chip on the CV PCB.
>
>            Treat the controllers just like you do a cartridge and always 
> connect them with the system OFF.
>
>            ----- Original Message ----- From: "Kevin Powers" 
> <kjpmail at gmail.com>
>            To: <coladam at adamcon.org>
>            Sent: Sunday, October 21, 2012 9:58 AM
>
>            Subject: [Coladam] CV/ADAM controllers hot-swappable?
>
>
>
>              Are the CV/ADAM game controllers hot-swappable?
>
>              _______________________________________________
>              Coladam mailing list
>              Coladam at adamcon.org
>              http://adamcon.org/cgi-bin/mailman/listinfo/coladam
>
>
>
>
>
>
>         _______________________________________________
>         Coladam mailing list
>         Coladam at adamcon.org
>         http://adamcon.org/cgi-bin/mailman/listinfo/coladam
>
>
>
>
>
>
>
>
>
> ------------------------------
>
> Message: 6
> Date: Mon, 22 Oct 2012 17:46:43 -0500
> From: "Jim Notini" <jnoti2 at comcast.net>
> Subject: Re: [Coladam] Homebrew CV cartridges
> To: "Kevin Powers" <kjpmail at gmail.com>, <coladam at adamcon.org>
> Message-ID: <AC8E338E760E40E299052A0D6CCA3D59 at HomePC>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
> Both of these have been showing up on eBay a lot more, so keep your eyes
> peeled. Also Space Invaders Collection will be getting reissued as a SGM
> game in the future.
>
> ----- Original Message ----- 
> From: "Kevin Powers" <kjpmail at gmail.com>
> To: <coladam at adamcon.org>
> Sent: Monday, October 22, 2012 8:04 AM
> Subject: [Coladam] Homebrew CV cartridges
>
>
>> It looks like Opcode Games is sold out of the Pac-Man Collection & Space
>> Invaders Collection carts.  Does that mean they're gone forever & cannot
>> be
>> ordered?
>> _______________________________________________
>> Coladam mailing list
>> Coladam at adamcon.org
>> http://adamcon.org/cgi-bin/mailman/listinfo/coladam
>>
>
>
>
>
> ------------------------------
>
> Message: 7
> Date: Mon, 22 Oct 2012 18:54:57 -0400
> From: Frances and/or Richard Clee <cleechez at tamcotec.com>
> Subject: Re: [Coladam] Homebrew CV cartridges
> To: Kevin Powers <kjpmail at gmail.com>
> Cc: coladam at adamcon.org
> Message-ID: <5085CEC1.2010809 at tamcotec.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Kevin, I think the answer to your question is that it all depends on
> Opcode games. If they are faced with enough users waving dollars in
> their faces to cover the costs of a new production run, and unless the
> first run was specifically sold as a limited edition, I suspect they
> would find the temptation to produce more very difficult to resist. But
> given the sales of the first run and comparable collections, they would
> likely have to wait until they had enough cash deposits in hand, and the
> likelihood of that happening seems diminishingly small. At least that's
> my interpretation of what the game makers have been telling us.
>
>
>
>
> On 10/22/2012 9:04 AM, Kevin Powers wrote:
>> It looks like Opcode Games is sold out of the Pac-Man Collection&  Space
>> Invaders Collection carts.  Does that mean they're gone forever&  cannot 
>> be
>> ordered?
>> _______________________________________________
>> Coladam mailing list
>> Coladam at adamcon.org
>> http://adamcon.org/cgi-bin/mailman/listinfo/coladam
>>
>
>
> ------------------------------
>
> Message: 8
> Date: Mon, 22 Oct 2012 18:59:07 -0400
> From: Frances and/or Richard Clee <cleechez at tamcotec.com>
> Subject: Re: [Coladam] CV/ADAM controllers hot-swappable?
> To: Kevin Powers <kjpmail at gmail.com>
> Cc: coladam at adamcon.org
> Message-ID: <5085CFBB.3020507 at tamcotec.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Kevin - not sure if it answers your question of not, but if my
> recollection is correct - and if it is relevant - the Walters brothers
> did have some programs such as SmartBASIC in bootable cartridges. There
> was also provision for a boot prom on MicroInnovations MIB2 and 3 cards.
>
>
>
>
> On 10/22/2012 10:19 AM, Kevin Powers wrote:
>> Would it be possible to create a custom cartridge that would serve as a
>> boot loader for the IDE/CF from the cartridge slot?
>> I'm concerned about the tapes becoming unreliable over time. If a cart
>> could boot the IDE/CF then that would take the tape thing out of the 
>> loop.
>> _______________________________________________
>> Coladam mailing list
>> Coladam at adamcon.org
>> http://adamcon.org/cgi-bin/mailman/listinfo/coladam
>>
>
>
> ------------------------------
>
> Message: 9
> Date: Mon, 22 Oct 2012 19:22:26 -0400
> From: Eduardo Mello <eduardo at opcodegames.com>
> Subject: [Coladam] Fwd:  Homebrew CV cartridges
> To: coladam at adamcon.org
> Message-ID:
> <CAPKMOcNhx9DB+gFqxfTsWijrCf6=7qyycJgrFxLV6iNf6-h4yQ at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> I will make them available again eventually. In fact I plan to do that
> with Space Invaders Collection next year, for its 10th anniversary.
>
> On Mon, Oct 22, 2012 at 9:04 AM, Kevin Powers 
> <kjpmail at gmail.com<DISABLEDSCRIPT:;>>
> wrote:
>> It looks like Opcode Games is sold out of the Pac-Man Collection & Space
>> Invaders Collection carts.  Does that mean they're gone forever & cannot
> be
>> ordered?
>> _______________________________________________
>> Coladam mailing list
>> Coladam at adamcon.org <DISABLEDSCRIPT:;>
>> http://adamcon.org/cgi-bin/mailman/listinfo/coladam
>
>
> ------------------------------
>
> Message: 10
> Date: Mon, 22 Oct 2012 21:14:18 -0400 (EDT)
> From: "Rich Drushel" <drushel at apk.net>
> Subject: [Coladam] running Super Games from HD
> To: coladam at adamcon.org
> Message-ID:
> <51129.129.22.129.189.1350954858.squirrel at mail.expedient.net>
> Content-Type: text/plain;charset=iso-8859-1
>
>
> Wow, so much traffic on the list that I can't find where the bit about 
> this
> was discussed.  However:
>
> Gist of discussion was, people want to play Super Games from a hard drive,
> but since Super Games access raw tape blocks 0-255, rather than named 
> files
> in a directory, there can be no support.  Moreover, someone said that the
> Super Game tapes being end-directory rather than center-directory would be
> a problem.
>
> Well... I will add a qualified "not so fast..."
>
> Part of the nightmare that is the EOS partition on the standard 10 MB
> hard drive, especially volume 0 block 0, is various patches for software
> that accessed raw blocks from tape or disk.  I don't know who did them
> all (I would guess Tony Morehen), because they were already in place when
> I first started working on Mini Winnie HD stuff with Herman Mason and
> George Koczwara in 1991.  The gist of the patches was to put files from
> various applications in unmovable locations, recompute the block offsets
> for the various boot loaders (which was where most of the raw blocks stuff
> was happening), and then NEVER do a SQUEEZE or CRUNCH of volume 0.  The
> HD version of PowerPaint similarly must sit in a defined place, with its
> 64K XRAM requirement redirected to a virtual memory file that also has
> defined block offsets.
>
> When I reverse-engineered HARDDISK (the EOS program loader shell), for
> ADAMserve, one of the things I did was get rid of all the absolute block
> reads and convert them to standard EOS file I/O.  I *THINK* (but it has 
> been
> a long while) that I did something similar for ADAMlink V's boot loader.
>
> In all my patched versions of HARDDISK, the EOS that is loaded traps the
> keypress SHIFT-TAB, and causes that to increment the current HD volume
> (0-9), wrapping back to 0 from 9, and beeping each time.  This was a
> primitive way to boot from one HD volume, then change to another one as
> the default (for software that did not independently have a patch to
> specify the volume number as part of access to device 24 (tape2/HD), such
> as I did put into SmartBASIC 1.x).
>
> There is only convention for limiting EOS to 10 1024-block volumes -- in
> the days of 20 MB HDs, you put 10 MB for EOS and 10 MB for TDOS.  I don't
> recall the format of the volume 0/block 0 partition table, as interpreted
> by HARDDISK; but I do know that the current EOS volume is just one byte in
> a reserved location in EOS, so logically that could support volumes 0-255.
>
> To come back to Super Games on hard drives... the obvious solution to me
> is to insure that you can format an EOS partition to have at least 255
> volumes.  Put one Super Game tape image on its own volume.  (So what if
> 3/4 of it is not used, HD space is cheap, and currently HARDDISK I don't
> think can deal with EOS volumes of arbitrary different sizes).  Put its 
> boot
> block into volume 0, just like the boot block of any app you want to run.
> In HARDDISK, specify the target volume, then BOOT SOFTWARE.  So long as
> the game itself does not do disk I/O by directly manipulating the ADAMnet
> device control block (DCB), but rather uses EOS function calls, it will
> work with the patched EOSes that I know about, or at least the ones that
> I worked on for ADAMserve.  As far as I remember, the ADAMserve EOS can
> catch function calls all the way down to START_READ_1_BLOCK and 
> START_WRITE_
> 1_BLOCK (which is what the games call so that there is background tape
> rewind while the game is playing -- emulated or with a modern HD, it would
> be instantaneous).
>
> If the game is evil and bypasses EOS completely for block I/O, then the
> game would have to be disassembled and patched.  I have never disassembled
> a Super Game, so I don't know how well they were written to keep code and
> data segments separate.  If code is well-isolated and easily-identifiable,
> it may not be such a job to rewrite to use EOS block I/O and then make it
> emulatable.
>
> Doug Slopsema has been inside HARDDISK more recently than me, so I defer
> to his superior knowledge in case of any errors I have made here.
>
> As for end-directory vs. center-directory tape format, this would not
> affect the operation of the Super Game at all if moved to HD.  The only
> reason for center-directory was to minimize rewind for data tapes, since
> presumably you'd be doing writes as well as reads.  Games are read-only
> (except for a high score screen), and you are loading screens one at
> a time and playing straight through, so having everything in order from
> beginning to end is more efficient.  My Dad did a block copy of his 256K
> Donkey Kong Super Game to a 160K disk, and it played fine until he would
> reach the point in the game where access beyond block 159 was required.
> I remember playing this disk myself.
>
> So, the main problem is software, not hardware, at least for any Super 
> Game
> which does not bang bits in the ADAMnet DCBs.
>
> *Dr. D.*
>
>
> -- 
> Richard F. Drushel, Ph.D.            | "They fell:  for Heaven to them no 
> hope
> Department of Biology                |  imparts / Who hear not for the 
> beating
> Case Western Reserve University      |  of their hearts."
> Cleveland, Ohio  44106-7080  U.S.A.  |         -- Edgar Allan Poe, 
> "Al-Aaraaf"
>
>
>
>
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> End of Coladam Digest, Vol 88, Issue 7
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