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Date: 2006-02 atari800xl.org comp.sys.atari.8bit
Question about TBXL  
 
1.  Thomas Richter  
 More options Feb 1, 12:39 am
Newsgroups: comp.sys.atari.8bit
From: Thomas Richter <t@mersenne.math.TU-Berlin.DE> -
Date: 31 Jan 2006 15:39:38 GMT
Local: Wed, Feb 1 2006 12:39 am
Subject: Re: Question about TBXL
| | | | | |
Hi,

> Perhaps things have changed, but previously only version 3.3a of Sparta
> would work with the MyIDE and it's OS rom.
> Can TurboDos (or other) CLI-type Dos work with the MyIDE now?  

I don't know.

> If the problem is overwriting lower memory by DUP.SYS, then shouldn't using
> MEM.SAVE with an Atari-type Dos work?  

In principle, yes. However, MEM.SAV is typically only restored on the
"B"ack to Cartridge command, and not on the "G"o to hex addr command which
is required to restart TurboBasic. Thus, it doesn't work without
modifications on the DUP. See also Hias posting on this.

So long,
        Thomas


 
 
2.  rjesp...@gmail.com  
 More options Feb 1, 5:48 am
Newsgroups: comp.sys.atari.8bit
From: rjesp@gmail.com -
Date: 31 Jan 2006 12:48:08 -0800
Local: Wed, Feb 1 2006 5:48 am
Subject: Re: Question about TBXL
| | | | | |

Many years ago I managed to get this working using DOS 2.5, I wrote a
small program that would modify DOS 2.5 to allow you to go back to TB
by selecting the 'B' option from the DOS menu.

Several years later New Atari User/Page 6 published the program. I've
been looking for the issue it got published in, but I've not been able
to find it. It's in one of the later issues, certainly after issue 61.
Unfortunately the online Page 6 archive hasn't got that far yet.

I should still have a copy of the file and/or binary on a floppy
somewhere, I could try to find that if any one is interested.

--
-- Raphael Espino - rjespino(at)yahoo.com -Ramdrive + JPEG viewers --
--     or     --
------------- Join The Atari 8-bit Computer WebRing at: -------------
----------  ino/a8ring.html -----------


 
 
3.  Larry  
 More options Feb 1, 9:27 pm
Newsgroups: comp.sys.atari.8bit
From: "Larry" <LLppwh@aol.com> -
Date: 1 Feb 2006 04:27:01 -0800
Local: Wed, Feb 1 2006 9:27 pm
Subject: Re: Question about TBXL
| | | | | |
Hi Raphael-

> Many years ago I managed to get this working using DOS 2.5, I wrote a

small program that would modify DOS 2.5 to allow you to go back to TB
by selecting the 'B' option from the DOS menu.

Several years later New Atari User/Page 6 published the program. I've
been looking for the issue it got published in, but I've not been able
to find it. It's in one of the later issues, certainly after issue 61.
Unfortunately the online Page 6 archive hasn't got that far yet. <

That would be great!  I'll also look in my Page 6/NAU mags. -- I have
them until the end of publication.

-Larry


 
 
4.  rjespino@hotmail.com  
 More options Feb 6, 12:28 am
Newsgroups: comp.sys.atari.8bit
From: "rjesp@hotmail.com" <rjesp@gmail.com> -
Date: 5 Feb 2006 07:28:40 -0800
Local: Mon, Feb 6 2006 12:28 am
Subject: Re: Question about TBXL
| | | | | |
I've uploaded it to my website now:

I remember it was published in an issue in the mid 90s, it was a small
type-in and I think it wasn't even listed in the index (just to make
things easier ;)

I'm amazed I can still remember writing this, it's been sitting on a
floppy for around 16 years now.

--
-- Raphael Espino - rjespino(at)yahoo.com -Ramdrive + JPEG viewers --
--     or     --
------------- Join The Atari 8-bit Computer WebRing at: -------------
----------  ino/a8ring.html -----------


 
 
5.  Larry  
 More options Feb 1, 9:46 pm
Newsgroups: comp.sys.atari.8bit
From: "Larry" <LLppwh@aol.com> -
Date: 1 Feb 2006 04:46:56 -0800
Local: Wed, Feb 1 2006 9:46 pm
Subject: Re: Question about TBXL
| | | | | |
> In principle, yes. However, MEM.SAV is typically only restored on the

"B"ack to Cartridge command, and not on the "G"o to hex addr command
which
is required to restart TurboBasic. Thus, it doesn't work without
modifications on the DUP. See also Hias posting on this. <

Yes, you and Hias are quite correct.  (Years ago,) I used the
disk-based version of Atari Microsoft BASIC for quite some time, and
knew that I used MEM.SAVE with it.  It appears Atari had patched Dos
2.0s to do as you both suggest.  -Larry


 
 
6.  Sc0rpi0  
 More options Feb 2, 1:38 am
Newsgroups: comp.sys.atari.8bit
From: Sc0rpi0 <sc0r@free.polbox.pl> -
Date: Wed, 01 Feb 2006 17:38:14 +0100
Local: Thurs, Feb 2 2006 1:38 am
Subject: Re: Question about TBXL
| | | | | |
Larry:

>> In principle, yes. However, MEM.SAV is typically only restored on the
> "B"ack to Cartridge command, and not on the "G"o to hex addr command
> which
> is required to restart TurboBasic. Thus, it doesn't work without
> modifications on the DUP.

Hmm, but TB XL is not looking for values at
$0E-$0F, $6A, $80-$81 and $02e4-$02E8 ?
If you need ALL memory then nothing you can do,
but if you don't then you can do it without modyfing DUP.SYS,
just there will be less memory. I don't know TB XL,
but I just think it is compatible with ATARI BASIC in that
one particular thing ?

--
Sc0rpi0
I hated going to weddings.
All the grandmas would poke me saying "You're next".
They stopped that when I started doing it to them at funerals.


 
SRAM Cart Project - works but I need help  
 
1.  stephenshepp...@hotmail.com  
 More options Feb 1, 10:47 am
Newsgroups: comp.sys.atari.8bit
From: stephenshepp@hotmail.com -
Date: 31 Jan 2006 17:47:45 -0800
Local: Wed, Feb 1 2006 10:47 am
Subject: SRAM Cart Project - works but I need help
| | | | | |
I'll try to make this short (doubtful, LOL).

I've built 3 versions (same hardware just different wiring) of internal
cartridges using SRAM. The project is basically a subset and variation
of Bob Woolley's SmartOS.

All three configurations suffer from the same problem.  I can store
cartridge images in battery backed up SRAM but when I shut down the
800XL and power up I boot to black screen.  The only way I can start
the cartridge is by holding down the Reset button for approximated 7
seconds.

The hardware consists of not much more than one 32K x 8 SRAM which sits
in the socket formerly reserved for the BASIC ROM.  I do use two
additional sockets as adapters so I can re-route or utilize A13 (for an
addition 8K bank), A11 (because A11 from the BASIC socket is the pin
normally reserved for /CS), Vcc, /OE, /WE (R/-W in A8 schematics), and
eventually A14 will be used (for multiple carts).  Borrowing from Mr.
Woolley's followup article, SmartIDE for the 1200XL,  I used the Dallas
DS1210 SRAM controller (for the battery backup).

The three configurations.

1) Substituted SRAM for the 800XL internal BASIC ROM.  No gates were
used in first trial.  /OE is enabled (fixed to ground), -BASIC signal
to /CS (thru the battery backup circuit), R/-W signals /WE on the SRAM
(I also have a switch to write protect)

I use my own software (simple Action code) to load the SRAM. I switch
on write protect and initiate jump to the Coldstart vector.  The
cartridge then runs (or it doesn't).

On this trial, in addition to having the initial black screen problem
on about 50% of the cart images worked.  The others refused to revive
from the black screen.  Please note that I can turn of power and still
revive the cartridge, with the Reset trick mentioned above.

2) Moved on to simulating external 8K cartridges.  Instead of using
-BASIC for chip selection I use -S5, just as an 8K cartridge does.  To
indicate the presence of an 8K cartridge I tied RD5 to Vcc.  These are
the only hardware changes from stage 1.

The software was changed because for a simulate external cartridge I
could perform direct writes to address $A000-$BFFF.  I didn't have to
bank select the "BASIC ROM" as I had in stage 1.

Despite being basically the same hardware about 75% (vs 50%) of the
cart images run but several have visual problems.

3) 16K cart emulation.  Tied both RD4 and RD5 to Vcc,  -S4 is connected
to A13 of my SRAM to control two 8K banks.  Used -S4 and -S5 thru an
AND gate to signal chip select (if either is LOW then the SRAM gets
selected).

I had big problems here.  Only about 10% of the ROM images would run
and nearly all of those were corrupted.

 I eventually incorporated 02 (Phi2), I believe correctly or as per Bob
Wolley's intent (but I'm no electronics guru, not even close, LOL).  To
be honest though, I don't understand how or for what the 02 clock
signal is used in this application.

Eventually, I fixed many of my problems and am working on the others
but the boot up isssue keeps nagging at me.

Here are my questions for the group.

Does the OS detect a cartridge, external cart or built-in BASIC, in
some way that I am not aware of? My SRAM is write protected, AFAIIK the
hardware should see the SRAM as ROM.

I'm aware that OS checks a zero value at $BFFC, and if it finds it then
the OS assumes that  $A000-$BFFF is RAM.  I don't know if the OS tries
to write to that range at this time.  In any case, the SRAM is write
protected via a switch.

Could there be timing issues, as in the SRAM responding initially too
slowly or too quickly?

- Steve Sheppard


 
looking for simple ram expansion for 800XL  
 
1.  Peter K.  
 More options Feb 1, 12:54 pm
Newsgroups: comp.sys.atari.8bit
From: "Peter K." <bitbuc@dev.null> -
Date: Wed, 01 Feb 2006 03:54:38 GMT
Local: Wed, Feb 1 2006 12:54 pm
Subject: Re: looking for simple ram expansion for 800XL
| | | | | |

On 1/27/06 11:42 PM, in article %CCCf.327659$0l5.231074@dukeread06,

"Docrotcod" <rahb@cox.net> wrote:
> Bradley at Best sells the Wizztronics assembled.  Which makes it a *BIT*
> easier to install.

> Thomas

Does anybody know whether this will work in an Atari 1200XL?

Pete


 
 
2.  Slor  
 More options Feb 1, 3:21 pm
Newsgroups: comp.sys.atari.8bit
From: Slor <s@rols.ten> -
Date: Wed, 01 Feb 2006 00:21:42 -0600
Local: Wed, Feb 1 2006 3:21 pm
Subject: Re: looking for simple ram expansion for 800XL
| | | | | |
Despite all prevention efforts, "Peter K." <bitbuc@dev.null> wrote in

>> Bradley at Best sells the Wizztronics assembled.  Which makes it a *BIT*
>> easier to install.

>> Thomas

> Does anybody know whether this will work in an Atari 1200XL?

Perhaps a dumb question, but did you email Brad to ask?  I was actually
about to do that myself.

--
James


 
Atari Chat  
 
1.  Greg Goodwin  
 More options Feb 1, 1:18 pm
Newsgroups: comp.sys.atari.8bit
From: "Greg Goodwin" <Greg.Goodwinp0.f2.n8@fmlynet.org> -
Date: Mon, 31 Jan 2006 20:18:22
Local: Tues, Jan 31 2006 8:18 pm
Subject: Atari Chat
| | | | | |
FamilyNet International Newsgate

  The Atari chat going on... currently have eleven people.  Come on and join!

   (If not, we will be back again next Tuesday... sorry for the late post, busy
week.  )  :)

A quick tutorial. Many have heard this on the Atari 8 newsgroup but I forgot
they haven't here.

Here we go.... (Entering "Telnet://" into a browser)

Red Hat Linux release 7.3 (Valhalla) Kernel 2.4.20-43.7.legacy on an i686
login: bbs
Password: bbs

----===== [ Enter "bbs" at both prompts ]=============----------

Last login: Wed Jan 4 09:04:38 from commodore.justdied.com

Welcome to The AtariNews.Org BBS

This BBS was setup mainly for its chat feature... to give the guys from the
Atar
i
forum on Delphi a place to chat. We'll see how it goes. A full BBS is obviousl
y
overkill but after trying a few web based chat systems and the Atari web
browser

having a problem with frames and refresh headers, this seemed like the next
step


 

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