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Subject: Info-Atari16 Digest V86 #66 ( twomore.arc )
Jouko Yl{lahti <TRIPMGR%SAMPO.FUDEC@FINGATE>
Info-Atari16 Digest Monday, December 29, 1986 Volume 86 : Issue 66
This weeks Editor: Bill Westfield
Today's Topics:
twomore.arc (two simple monochrome graphics demos)
----------------------------------------------------------------------
Date: Mon, 22 Dec 86 15:43:13 est
From: Eric Terrell <terrell@ohio-state.ARPA>
To: info-atari16@su-score.arpa
begin 644 twomore.arc
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end
------------------------------
End of Info-Atari16 Digest
**************************
-------MAILER-DAEMON@fingate.BITNET (Mail Delivery Subsystem) (12/31/86)
----- Transcript of session follows -----
sh: /usr/lib/news/recnews: not found
554 "|/usr/lib/news/recnews sfnet.atari16"... unknown mailer error 1
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From: <INFO-ATARI16@SCORE.STANFORD.EDU>
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Original-From: Info-Atari16 Digest <INFO-ATARI16@SCORE.STANFORD.EDU>
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Comments: To: "Distribution List: ;" <INFO-ATARI16>
Subject: Info-Atari16 Digest V86 #64
Jouko Yl{lahti <TRIPMGR%SAMPO.FUDEC@FINGATE>
Info-Atari16 Digest Monday, December 29, 1986 Volume 86 : Issue 64
This weeks Editor: Bill Westfield
Today's Topics:
Re: 1040 STF
Hard disk questions
Hard disks - The Saga Continues (long)
Easy Draw 2.0 & Publishing Partner
STarter Kit Address Wanted
Copyright questions (Re: ARC)
Re: STarter Kit Address Wanted
Speak and Spell program?
avatex modem woes
My Previous Postings - What are They?
UUdecode Desk Accessory
----------------------------------------------------------------------
Date: 24 Dec 86 20:06:18 GMT
From: imagen!atari!neil@ucbvax.Berkeley.EDU (Neil Harris)
Subject: Re: 1040 STF
To: info-atari16@score.stanford.edu
In article <861222-095327-8810@Xerox>, Bicer.ES@XEROX.COM writes:
>
> Does anyone know the difference between 1040ST and 1040STF?
>
No difference. The F stands for floppy, as in built-in floppy drive. The
520 is actually called (in the USA) the 520STM, M for Modulator.
--
--->Neil @ Atari
....{hoptoad, lll-lcc, pyramid, imagen, sun}!atari!neil
...{hoptoad, lll-lcc, pyramid, imagen, sun}!atari!neil
BIX: neilharris CIS: 70007,1135 Delphi: NEILHARRIS
GENIE: nharris WELL: neil Atari Corp. BBS 408-745-5308
US Mail: Atari Corp.
1196 Borregas Ave.
Sunnyvale, CA 94086
"Loose chips sink ships."
------------------------------
Date: 25 Dec 86 04:32:38 GMT
From: decvax!mcnc!ravi@ucbvax.Berkeley.EDU (Ravi Subrahmanyan)
Subject: Hard disk questions
To: info-atari16@score.stanford.edu
I have some questions about the use of a hard disk with the
ST, I'd appreciate getting comments on these points:
1) What is the '40 folder limit' that's been bandied about
on the net? Can one not have more than 40 folders on the
disk (this does not make sense), or is one limited to
visiting 40 folders in a session? Do multiple openings
of a folder count towards the total more than once?
2) Is there a limit on the number of files one can have in
a folder, or on a logical disk? Please comment on any
and all limits..
3) Should the head parking program (I presume that's what
SHIP.PRG does) be run each time the drive is powered down),
or only if it is to be moved? Is it Ok to turn the drive
off without special attention?
(I do not have a manual that may have the answer to this).
4) Is the use of nonstandard partitions Ok? I made up a
partition by creating an entry in the WINCAP file, and it
looks fine so far. Specifically, I have 30 Mb divided up
into 5-10-10-5.
I realize I could probably find out some of the limits by
trial and error, but I'm afraid there may be some inconsistent
ones I may miss.
What are some benchmarks I may use to evaluate the
'performance' of the drive? I'd like to run something that's been
done on the Supra and Atari drives, to make a realistic comparison.
Thanks in advance for the help/advice.
-ravi
{seismo, decvax, ucbvax, ihnp4}!mcnc!ravi
------------------------------
Date: 25 Dec 86 05:27:08 GMT
From: decvax!mcnc!ravi@ucbvax.Berkeley.EDU (Ravi Subrahmanyan)
Subject: Hard disks - The Saga Continues (long)
To: info-atari16@score.stanford.edu
Here's another tale of the piecing together of a hard-disk,
including my evaluation (financial and otherwise) of the Ultimate Question:
Why Bother??
Anyway, it all began one dark and stormy night when I read a
posting describing a DMA-->SCSI adapter from Berkeley Microsystems.
My curiosity aroused, I called them up, and found that they offered
the board together with an Adaptek 4000 controller for $250. Also,
the board has a battery-backed up clock which can be used to update
the ST's internal clock, etc. Anyway, it seemed that this might be a
nice way to get a hard drive, provided I could get a good deal on a
bare drive. I snooped around, and the basic choices (within my budget)
were a Seagate ST225N, and a CDC Wren 9415. The price breakdowns were
roughly as follows:
a) DMA-->SCSI : ~125
b) SCSI controller: ~125
c) ST506 compatible hard drive:
1) Seagate ST225N (20Mb) ~325
2) Control Data 9415 (30Mb) ~325
d) Power supply: The CDC needs 4A at 12V during
Sjartup, so it needs a fairly hefty supply: ~75
It was obvious that making the 20Mb system would not save me anything,
at best I would barely break even. However, the CDC looked promising, and
so I decided to go ahead and take the plunge. 3 weeks later, I have a
roaring monster strewn all over the table in front of me; it's noisy,
the table looks like a Klingon cruiser, but it does work, and I have a
30 Mb drive.
Is it all worth it? Well, Tech-Specialities now advertises a
hard disk kit for $595. They give you some sort of a case and power
supply, with space/power for 2 half-height drives, one Seagate
ST225, and the controller cards. Considering the convenience that
offers, an experience like mine is of dubious value. Finding an
appropriate power supply was a pain, plus the CDC is full height, so
mounting the boards needed some machine work. Also, I don't have a
case, so it's sitting out front in all it's glory.
But, on the other hand, I do have a 30Mb drive for ~700.
Also, I'm certain it's a faster drive (it's voice-coil), for what
that's worth. I think I can get an IBM-PC case for ~30, and if I
can put it all in that, at least it'll be packaged. Also, I can add
a second drive for ~350 (the controller + drivers can handle two
drives), so I have the option of expanding cheaply at some future date if I
wish. All in all, it's almost worth the hassle, especially now that
it's over. If you like making things, it's probably a good deal;
one certainly breaks even. Finally, it adds an element of (possibly
unpleasant) surprise to the whole thing.. (will it work or won't it?
Did I just blow $$$? Will the old lady make me sleep in Fido's
room for the rest of the decade? Should I have it (Fido's room)
carpeted before I start this, just in case?.. you get the idea..)
Hope this fires up some intrepid adventurers out there,
-ravi
------------------------------
Date: Thu, 25 Dec 86 15:58:23 EST
From: Silver%UMass.BITNET@WISCVM.WISC.EDU (I forgot your name
Subject: Easy Draw 2.0 & Publishing Partner
To: Info-Atari16@SU-SCORE.ARPA
Hello,
For all desktop publishing fans. I just received a letter from
Migraph, Inc. Informing me that the new version of Easy-Draw is now
available for registered owners of Easy-Draw. So, if you have not
mailed your warranty card in yet, I think it is about time. In the
letter (all done with Easy-Draw, very nice.) they mention the new
features of Easy-Draw, which are:
* New Improved User Manual. Over 100 pages full of new information,
and a new section on using Easy-Draw for Desktop Publishing.
* Load ASCII - Import ASCII files into Easy-Draw from your favorite
word processir. Break text blocks too.
* Edit Polyline - Add or delete points to any polyline object. Modify
part or all of any polyline object.
* Flip or Mirror - Any object instantly.
* Single .GEM file format - All files are stored in ".GEM" format.
* New Arrange commands - Help you quickly page center and evenly space
objects.
* New ARC commands - Displays the angle and percentages. (Pie Charts!)
* Metric and Inch - Page sizes and measurements.
* 2 new point sizes - 7 and 28 point are included.
* Automatic Copy, Epson FX WIDE driver, and load up to 5 fonts. Also
twice the amount of text per drawing.
* 1/10 grid spacing and more...
To upgrade:
Send original disks (both!) with warranty card (if you did not send
it before) with $25.00 in a check or in VISA or MC. Add $4.00 for S&H
in Canada add $6.00 all internation orders add $10.00. ALL payment must
be in Check, Money Order or VISA or MC. Internation orders use cash (USD)
or card only. To:
Migraph, Inc.
720 S 333rd (201)
Federal Way, WA 98003
(I don't work with Migraph, not do I know anybody there, just passing the
info on...)
Upgrade goes up to $40 after January 31.
About Publishing Partner, I called them up (seems I do one a week
thes days.) All pre-paid orders are being shipped, week after x-mass they
ship COD orders. So, soon we should get that amazing program. :-)
Rick Flashman Flash@UMASS.BITNET
1040 N. Pleasant St. #381 Flash%UMASS.BITNET@WISCVM.WISC.EDU
Amherst, MA 01002 R-FLASHMAN on GENIE
(413) 549-0173
"Only after the traveler has stopped to reflect has his real journey
begun." - from T. Serstevens
------------------------------
Date: 24 Dec 86 18:16:51 GMT
From: ubc-vision!mprvaxa!jackson@beaver.cs.washington.edu (Taylor Jackson)
Subject: STarter Kit Address Wanted
To: info-atari16@score.stanford.edu
Have started the pre-season "paperless office and home" blitz, and have
(of course) thown out all the valuable stuff and kept the leftovers.
Would someone send me John Franco's address so I can get the STarter Kit.
Many Thankyouse in advance
Taylor Jackson
------------------------------
Date: 27 Dec 86 07:41:14 GMT
From: mnetor!genat!maccs!cs4e3ao@seismo.css.gov (cs4e3ao)
Subject: Copyright questions (Re: ARC)
To: info-atari16@score.stanford.edu
I recently downloaded a file called IBMSRCE.ARC from a local BBS, it
turned out that this archive contained most of the source files
for ARC (IBM version 4.??)
What I would like to know is ...
Are these files in the public domain? (they all contain copyright
notices in them)
If they are PD then could someone please send me the ST sources
(vers. 5.12 I believe)
If they are not PD then what could/would happen if I were to produce
and market a program which was in some way compatible with ARC
files? (say my program were able to extract files from an archive)
Would things be different if the program I wrote was PD?
Any help would be appreciated as I do not want to start this project until
these questions are cleared up.
Thanks
Grant Henderson
------------------------------
Date: 26 Dec 86 13:29:00 GMT
From: ihnp4!inuxc!iuvax!franco@ucbvax.Berkeley.EDU
Subject: Re: STarter Kit Address Wanted
To: info-atari16@score.stanford.edu
The STarter Kit, designed for new owners of an ST who have discovered that
their machines are virtually useless without some additional software
(communications, terminal emulators, ramdisks, text editors, memory editors,
disk editors, languages (xlisp, forth), C source for xlisp and communications
languages (mainly to teach some C programming principles), ARC + dozens
of other utilities, an entire development system (in FORTH)), may be
obtained by sending 5 disks formatted single-sided, SASE (that is, self
addressed, stamped envelope), packing material to:
John Franco
2535 Spicewood Lane
Bloomington, IN 47401
USA
From Europe send $3.00 US in postal coupons, from Canada send $1.50 US in
postal coupons.
------------------------------
Mail-From: BILLW created at 28-Dec-86 22:18:11
Date: Sun 28 Dec 86 22:18:11-PST
From: William "Chops" Westfield <BILLW@Score.Stanford.EDU>
Subject: Speak and Spell program?
To: info-mac@SUMEX-AIM.Stanford.EDU, info-atari16@Score.Stanford.EDU,
So my girlfriend and I got her son a TI Speak and Spell for Christmas,
and I was wondering whether a piece of software that does the same
sort of thing is available for any of the current generation of
"home" computers, since I know at least that they can all talk.
(If not, why not? It seems like a good idea...)
Please at least CC me directly, since I don't read any of these
mailing lists very frequently.
BillW
------------------------------
Date: Sun, 28 Dec 86 22:46:22 PST
From: <20370843@wsuvm1.bitnet>
Reply-To: 20370843%WSUVM1.BITNET@forsythe.stanford.edu
To: info-atari16@score.stanford.edu
Subject: avatex modem woes
My avatex 1200 modem has worked fine so far for kermit and xmodem uploads
and downloads (probably over 200K of each). I had to change a
DIP switch in the back though: sw 6 is down (DTR forced active). All
others are in the default or up position. I haven't changed any of the
flow-control parameters through the control panel.
My RS-232 cable only has the following lines connected: Ground, RD, TD.
Hope this helps.
---BLH
------------------------------
Date: Wed, 24 Dec 86 12:19:15 est
From: Eric Terrell <terrell@ohio-state.ARPA>
To: info-atari16@su-score.arpa
Subject: My Previous Postings - What are They?
I apologize for sending the uuencoded binaries with little or no
explanation as to their contents.
When I send such a file I give a command like:
mail <atari user's group> -s "this is the subject" < <uuencoded file>
But somehow the subject string doesn't make it. At any rate from now
on I'll place some information about the posting at the top of the
uuencoded file.
But here's an explanation of the various postings:
memtest.arc - contains a memory diagnostic program and user's guide
target.arc - contains a simple 2-person (mono only) target shooting game and
user's guide
digit.arc - contains a digital music player, and about 5 seconds of music
from the Rush band. If anyone has any more files for this
program, (i.e. other input data files) please let me know.
twomore.arc - two little (mono only) graphics demo programs
Terrell
------------------------------
Date: Mon, 29 Dec 86 12:56 EST
From: Rodney <Peck@RADC-MULTICS.ARPA>
Subject: UUdecode Desk Accessory
To: info-atari16@SCORE.STANFORD.EDU
Alright, I went and did it, I bought the developers kit, and that
Sybex book, now I know alot about gem. My first real program will be a
Desk accessory that does uudecoding in the background. The idea here is
that you would use kermit to transfer your file, and then pop down the
uudecode da, tell it what file you want to decode, and let it go. It
would do occasional timer events to keep things going, and decode the
file showing the line number & bytes output so far.
Since its a da, you can go back to kermit and transfer another file
while this is going on due to the "limited multitasking kernal".
Are there any features you all would like to see in this before I
start the serious coding? I plan to steal Paul Smee's code for the
actual uudecoding (with proper credit given)...it handels the missing
spaces and inserted nulls and those wacky "`"s.
A filled bar indicating how much of the input file has been read might
be nice (and in the gem spirit).
leave me some mail....
rodp@radc-multics.arpa (thru the wiscvm gateway for bitnet)
PS: As a registered developer, what am I entitled to as far as Gdos
goes? Also, what do I do with the disclosure statement???
------------------------------
End of Info-Atari16 Digest
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Subject: Info-Atari16 Digest V86 #62
Jouko Yl{lahti <TRIPMGR%SAMPO.FUDEC@FINGATE>
Info-Atari16 Digest Friday, December 26, 1986 Volume 86 : Issue 62
This weeks Editor: Bill Westfield
Today's Topics:
Re: Re: A challenge to you disk experts
Re: Re: A challenge to you disk experts
Re: Drawing programs
Re: "C" on Atari looks pretty wierd
Re: RE: uudecode
Mac Emulator (idea!)
1 MB Upgrade Board
Re: AUTOCOPY
----------------------------------------------------------------------
Date: 23 Dec 86 19:39:53 GMT
From: imagen!atari!apratt@ucbvax.Berkeley.EDU (Allan Pratt)
Subject: Re: Re: A challenge to you disk experts
To: info-atari16@score.stanford.edu
> What I would like is to take a SS disk, say "open, sesame" and end up with
> a normal DS disk, that may be used anytime without loading any special
> drivers, just like standard SS and DS disks may be mixed in a session.
The only way I can think of to say, "open, sesame" on an SS disk is to
write a program which would (A) format the second side, (B) compact
the data from its current, all-on-one-side format to the DS
alternating-sides format, and (C) diddle with the boot sector to
inform the system that this is a DS disk. That would take
considerable head movement (which I take it you want to avoid) but
could be done, and would only need to be done once per disk. The
formats are just too different to allow some simple changes to make it
all work out.
> Hint for making AUTOCOPY (current version) work as fast as it can:
> Put the files to be copied close to the beginning of the disk (simply
> by writing them on the disk first, then the rest of the files...).
> Write them to the disk in the order they are to be copied.
The first suggestion is good: it will minimize the distance from the
directory and FAT to the data. However, the second doesn't matter.
The head-seek distance is conserved no matter what permutation of
those files you use (provided they are all contiguous and the first
files on the disk).
The thing which will speed up your copy operation the most is a
disk-block caching program like Beckmeyer's hard-disk accelerator. If
it could be instructed to cache the blocks in the FAT and root
directory, you would only have to read them once for the first file,
and the directory searches involved in opening the subsequent files,
as well as the FAT hits to determine where they are, would be done
without any disk head movement at all. In that case, it really would
pay to copy the files to the disk in the order they're to be copied to
RAM, because then the head would march across the disk in one
direction, until all the files were copied.
The reason people don't write block-caching programs for floppies is
that they can be asynchronously dismounted: you can pop the disk at
any time. When you do that, you have to invalidate your cache. But
to determine that this has been done, you have to ask about media
change. Sometimes the routine which determines media change has to
hit the disk, to check its serial number (that is, when the state it
"maybe media has changed"). Hitting the disk undoes all the benefit
of having a cache in the first place. Therefore, people don't write
such caching programs, and you are out of luck.
Finally, the way to read lots of disk blocks without stopping is to use
a large buffer and the GEMDOS system call Rwabs. The Fread call uses
this to get its blocks. You shouldn't have to touch it. If you are
using the runtime library (GEMLIB's fread call), this explains your
troubles. Also, you mentioned using a 27K buffer. Why not use a
buffer as large as you can (whatever's left after your ramdisk and
copy program have started)? You can find out how big it is, and
where it is, by examining your own basepage.
Finally, consider the time you have spent worrying about this. You
will not make up that much time in saved disk accesses. Moreover,
head seeking is exactly what disk drives are made to do -- I wouldn't
worry about the wear and tear, especially if you have preventive
maintenance done occasionally -- make sure no screws are loose, speed
is within spec, etc. Things like that, and head wear, will cause
failures long before your stepper motor gives out.
| Opinions expressed above do not necessarily | -- Allan Pratt, Atari Corp.
| reflect those of Atari Corp. or anyone else. | ...lll-lcc!atari!apratt
------------------------------
Date: 24 Dec 86 04:06:36 GMT
From: braner@tcgould.tn.cornell.edu (braner)
Subject: Re: Re: A challenge to you disk experts
To: info-atari16@score.stanford.edu
Thanks to Allan for the expert advice.
My goal is not to minimize disk head movement, but to minimize disk use.
Period. Unnecessary head movement causes longer disk-turning periods -->
more disk (and head) wear (and more waiting time).
I used a 27K buffer for disk read in AUTOCOPY since the speed does not
increase significantly for larger buffers. (Indeed, the speed is almost
up to its max with 9K!) There I used Fread() to read into the buffer.
In AUTODISK (recently posted) I used Rwabs(), as Allen suggested. The whole
idea behind AUTODISK is that I copy the whole disk as a block, starting with
reading the boot sector and FAT, so I know how much to read on without
re-reading anything.
I very much wish I had a good disk-cache program. That would eliminate
not only the need for dirty tricks like AUTODISK, but also (with a BIG
cache) the need for a RAMdisk! The problem of handling disk-swappings
(by the user, with no warning) is serious, but not insurmountable.
For example, one could write a cache program that would keep track of
the disk things came off of (not just sectors and drives), and would NOT
delay WRITING of data to the physical disk. The former feature would allow
handling data from two or more disks with one drive and no extra swapping,
and the latter would avoid writing on the wrong disk and also after-the-fact
reporting of write errors (common on floppies...). If the user does not
swap disks too often, the program would not need to check the disk ID very
often, and GREAT increases in disk throughput would become possible!!
If I had the time for a large project like that, a GOOD disk-cache program
would be my very first choice! Anybody out there up to it?
Of course I've spent time on AUTOCOPY and AUTODISK, perhaps more than I'd
ever regain from them. But EVERYBODY can now use them for free! It's
part of my share in the great world of Public Domain Software.
- Moshe Braner
------------------------------
Date: 18 Dec 86 16:06:30 GMT
From: meccts!meccsd!mecc!zeke!todd@rutgers.rutgers.edu (Todd Burkey)
Subject: Re: Drawing programs
To: info-atari16@score.stanford.edu
Having owned a mac for years and after transforming it into a MacPaperweight
when I bought my ST in mid '85, I think I can give at least a little insight
into the drafting programs at least. First, it is really important not to
confuse painting programs with drafting ones. Macpaint on the mac is in the
same category as NEO, DEGAS, and N-Vision on the ST (although feature wise,
NEO .9 or 1.0 will wipe away macpaint...) 2-D drafting programs on the other
hand include programs like MacDraw and First Cadd, Drafix, and Easydraw on
the ST. I would say that feature for feature, MacDraw and the new Easydraw
are very similar. Easydraw is a little faster and fully utilizes both
buttons on the ST, simplifying the user interface. I have used Easydraw for
overheads and simple schematic drawings and was very satisfied with the
quality of the printouts on my Epson printer (I also have Macdraw on my
Magic Sac and guess what! It runs faster than a Mac+ and it gives you the
full screen for workspace...and I got a MacIntosh addict to admit that!).
More similar to Draft on the Mac are First Cadd and Drafix. First Cadd is
basically the IBM PC version of Generic Cadd ported to the ST with some
enhancements. Notable improvements are the speed (much faster than the AT
version of GC) and some of the GC 2.0 features were added. The important
features (to me) that First Cadd provides include: 1) component storing,
scaling, and placement, 2) truely redefinable grids, 3) edittable text fonts
(standard set is optimized for a pen plotter), 4) many printer drivers (>100
are included with the package, 5) user definable menus, 6) distance,
perimeter, and volume measurement capability, 7) a very well written manual,
and 8) enough commands to allow me to create any arc, ellipsoid, curvefit
line, etc that I care to make. And it is only 49.95 retail. Drafix I saw
when I was out at Comdex, but to be truthful I didn't look at it very
closely after I saw the $295 dealer price. For those with access to the PC
world, it is a direct port of Drafix from the PC and seemed to have most of
the features of Autocad and Generic Cadd 2.0. If anyone does buy drafix, let
me know it if was worth it.
One product I haven't mentioned yet is Graphics Artist. All I have seen of
this program so far is the demo disk I got from Atari. The program looks
like a combination of a drafting package and a paint program. I
probably would have purchased it by now if it wasn't for their poor ads I
see in Antic. As a graphics artist friend of mine mentioned..."If you are
putting an ad together about a product that is such a great graphics
program, why put out an ad that looks like it was done by hand and by an
inexperienced artist at that." Kind of like getting a completely handwritten
letter from a Printer company describing their product in detail...
-Todd Burkey
...!mecc!zeke!todd
------------------------------
Date: 24 Dec 86 19:50:09 GMT
From: voder!kontron!stephan@ucbvax.Berkeley.EDU (Stephan W. Wendl)
Subject: Re: "C" on Atari looks pretty wierd
To: info-atari16@score.stanford.edu
> Xref: kontron comp.sys.atari.st:478 comp.lang.c:489
>
> Do Atari C compilers really accept these? What do they do?
>
> Also, the library routines used are almost totally bonkers. E.g.
> to open a file they use Fopen rather than fopen. To read it's Fread.
> To scan a directory it's Fsfirst and Fsnext rather than opendir and
> readdir. For malloc/free they even use Malloc/Mfree! What was wrong
> with the old names, did they make software too easy to port?
I don't know about the '//' but the line behind references gem calls.
About the library routines: apearently there quite some bugs in the
lib functions and one way to get arround is to use macros which just
convert into trap calls. That effectivly makes the program work and
quite shorter in codesize.
------------------------------
Date: 23 Dec 86 10:27:41 GMT
From: mcvax!ukc!dcl-cs!bath63!pes@seismo.css.gov (Paul Smee)
Subject: Re: RE: uudecode
To: info-atari16@score.stanford.edu
Caught it. It's none of the above, but rather one of (a) some version of
uuencode or (b) some beknighted gateway or comms implementation.
The character causing problems (in uuencoded UNITERM) is the tilde, or
twiddle, (or ~) character. Some uuencoded programs contain twiddles.
Some uudecodes (e.g. mine) will handle twiddles. However, twiddle **IS NOT**
in the 'official' UUENCODE character set.
From a look at the files, it appears that the twiddles are replacing caret,
or hat, or not (or ^) characters. (Note that twiddle is ASCII 176 octal,
and hat is 136 octal.)
So, it looks like the answer is (a) if you're having uudecode problems,
check to see if there are twiddles in the file, and if so, turn them into
hats; and (b) to solve the new problem, of which UUENCODE generates files
containing twiddles, or possibly, which machine changes hats to twiddles
as the files get transmitted through...
Thanks to Leila Burrell-Davis at Sussex for her help in chasing this...
------------------------------
Date: 24 Dec 86 02:12:12 GMT
From: mcvax!botter!ark!Patrick@seismo.css.gov (Patrick van Kleef)
Subject: Mac Emulator (idea!)
To: info-atari16@score.stanford.edu
Just an idea:
The most frequent error that occurs using the Mac Emulator, is a
bus error. This happens when programs start writing at locations they're
not allowed to on the Atari ST. Usually it means the software wasn't
'perfect', not in accordance with the Apple Programming Guidelines.
People tell me there is a way of preventing bus errors on the ST. This
type of error is generated by one line of the Glue chip, the so called
BERR line.
Now what if we disconnected that line? In theory bus errors would be
impossible. Would it affect 'normal programs'? Will more Macintosh programs
run? Is there anyone who can figure this out?
Dave Small writes, the most frequent error is the bus error that occurs when
Mac programs write at location 0, Ram at the Mac, Rom at the ST. This action
has -as far as I know- no effect on the working of a program on the Mac. But
on the ST, a bus error occurs and the program fails to run. Would a switch,
that disconnects the BERR line on the Glue have the same effect as on the
Mac. Namely that programs run without further failure? I think it would
increase the amount of good working Mac software a lot.
As I'm too much of a kludge concerning hardware (and software too, for that
matter), I'd like the opinion of some experts. Moshe, do you have any idea?
------------------------------
Date: 24 Dec 86 15:52:46 GMT
From: kodak!ektools!bruce@rochester.arpa (Bruce D. Nelson )
Subject: 1 MB Upgrade Board
To: info-atari16@score.stanford.edu
I recently installed the ram upgrade board from Diverse Data Products
(1805 Northeast 164 St., N. Miamai Beach, FL 33162, 305-940-0458).
The installation went reasonably easy except for a few problems I ran into
at the end. The steps are basically:
1) Get to the mother board.
2) Remove the capacitors on either side of U30.
3) Place a clip over U30 (which gets the address signals to their board).
4) Remove the video shifter, insert their socket, and place the shifter in it.
5) Solder 3 wires to 3 lands under the MMU.
6) Put the computer back together.
Steps 1-6 took me about 20 minutes. Much more enjoyable than piggybacking the
ram chips and soldering over 250 connections per the "original" upgrade.
The problems I ran into were:
1) The socket that goes between the video shifter and the original
socket sits a little bit high and the shield over the shifter doesn't
fit. I had to cut off about 1 mm of each lead of their socket.
2) The tape they used on the back of their pc board still let some of
the pins of their components pop through. When reassembling the
shield, the pressure on the board popped some of the pins through so
they shorted something. Fortunately :-) it didn't cream the ST. I had
to put some thick foam tape under the board.
3) The fit of the board under the shield is very tricky. The instructions,
which are otherwise quite clear, don't give a hint on how to make it fit.
took a lot of trial and error to get it to fit under the shield.
Due to the problems I ran into, it took about 4 hours to get it right. But a
friend of mine who did it after I gave him the above info did it in about
1 1/2 hours (he also had trouble due to problem #3).
However, when it was all done, the results were worth all the trouble. As I
said, I think it was still easier than 256+ solder connections.
I have no connection to Diverse Data Products, and the opinions expressed are
my own and do not necessarily reflect those of my employer.
Bruce D. Nelson
Product Line Systems
USPS: EASTMAN KODAK CO., Dept. 407, 901 Elmgrove Rd., Rochester, NY 14650
VOICE: 716 726-7890
UUCP: {allegra, seismo}!rochester!kodak!ektools!bruce
ARPA: kodak!ektools!bruce@rochester.ARPA
------------------------------
Date: 24 Dec 86 18:56:20 GMT
From: clyde!watmath!watnot!water!ljdickey@rutgers.rutgers.edu (Lee Dickey)
Subject: Re: AUTOCOPY
To: info-atari16@score.stanford.edu
In article <674@bath63.ux63.bath.ac.uk>, pes@bath63.ux63.bath.ac.uk (Paul Smee)
writes:
> The advantage of using ` is that (not being a space) it won't get stripped
> from the ends of lines....
> So, in summary, if you get a uuencoded file containing `s, turn them all
> into space chars.
I think that this is a dangerous suggestion, because some ASCII to EBCDIC
conversions get the caret (^), the grave accent (`) and the tilde (~) mixed
up. I saw some files pass this way with lots of grave accents that had
started life as carets.
There are other solutions to the problem of blanks at the end of lines.
(1) If the lines are truncated, put some blanks in yourself.
It seems to matter not if you put in too many blanks.
For example, this worked for me:
"g/^M/s/$/ /"
My uudecode program was not upset by the extra blanks
that I put in at the end of the lines, and it got
everything right.
(2) Put in some terminator at the end of every line before you
transmit it. Someone recently sent a file with an "a" at
the end of every full line. (A full line is one that
starts with an "M" and has at least 61 chars in it.)
I made two copies of this file, one with the "a" and
one without, by doing something like this:
"g/^M/s/a$//"
The uudecode program produced the same result from both
encoded files.
Neither of these solves the problem of multiple blanks being turned
to tab characters. Are there any mailers that do this?
Perhaps a text editor might do that, maybe, but no file handlers, please.
Please do not deliberately introduce files with these non-UUencode
characters in them. If you do, then the errors of conversion that I
mentioned above can not be corrected.
The solutions that you found may be fine for you to get around whatever
problems your text editor may have. If they are, use them. Locally.
But please keep them local and do not introduce them onto the net.
Prof. L. J. Dickey, Faculty of Mathematics, University of Waterloo.
ljdickey@water.UUCP ljdickey%water@waterloo.CSNET
ljdickey%water%waterloo.csnet@csnet-relay.ARPA
ljdickey@watdcs.BITNET
------------------------------
End of Info-Atari16 Digest
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