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- Info-Atari16 Digest Fri, 5 Apr 91 Volume 91 : Issue 193
-
- Today's Topics:
- (INQUIRY) ST players for Amiga animation and *.SPS files
- Aladin Mac emulator problems...
- Analyze! Metafiles (HELP!)
- Atari cpu evolution (2 msgs)
- Does Lode Runner game exist for the ST?
- Flicker Palettes [was Re: Graphics on the STE...]
- Graphics on the STE - v. generally speaking...
- hard disk cache
- MEGA => MEGA STE Board?
- MEGA STE trouble (2 msgs)
- Problems with ST Writer (3.8) double column format.
- RUFUS problem - it won't run!
- Specre GCR MAC -> DeskJet Printer Driver Needed
- Spectrum/3-D/animation
- Stalker/Steno & Diamond Back II w/Cache
- The cause of the phantom typist
- union demo 2
-
- Welcome to the Info-Atari16 Digest. The configuration for the automatic
- cross-posting to/from Usenet is getting closer, but still getting thrashed
- out. Please send notifications about broken digests or bogus messages
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-
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-
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- from someplace (usually a BITNET host) that redistributes it, please
- contact the redistributor, not us.
- ----------------------------------------------------------------------
-
- Date: 5 Apr 91 02:03:51 GMT
- From: wixer.UUCP!bgodot@ucbvax.berkeley.edu (Paul Ortega)
- Subject: (INQUIRY) ST players for Amiga animation and *.SPS files
- To: Info-Atari16@naucse.cse.nau.edu
-
- Is there an ST player for the Amiga animations that are played with
- the Amiga program 'flick'?
-
- Also, what kind of ST graphics files are those with the .SPS
- extender? I downloaded a number of them (NAGEL**.SPS) , but can't view
- them. What do I need to view those?
-
- ------------------------------
-
- Date: 4 Apr 91 15:12:48 GMT
- From:
- noao!ncar!elroy.jpl.nasa.gov!usc!snorkelwacker.mit.edu!bloom-beacon!eru!hagbard
- !sunic!mcsun!ukc!pyrltd!lucifer!ralph@arizona.edu ( 244)
- Subject: Aladin Mac emulator problems...
- To: Info-Atari16@naucse.cse.nau.edu
-
- Are there any Aladin users out there ??
-
- I have just inherited an Aladin Mac emulator, complete with original
- disks and documentation. Unfortunately, several of the PD utility
- disks appear to be damaged in some way.
-
- One of the disks has some games on, but when trying to mount it, Aladin
- claims that it is not an Aladin disk. I've looked through a Mac hints
- book which claims that this is can probably be fixed by holding down
- OPTION+'cloverleaf' keys during bootup. Does you happen to know if
- these keys are emulated, and if so, what they are mapped to ??
-
- The other disk seems to start mounting properly, but it never finishes.
- I see the disk access light go on, the mouse pointer changes to wristwatch
- during several seconds of disk access. It then flips back to the pointer
- and back to the watch again and does a little more disk access. After
- some more seconds, the disk light goes out and nothing happens. I've
- tried leaving it for a long time to see if it's thinking about it, but
- nothing ever happens. The arrow pointer never comes back. The only way
- to get out of it seems to be a reboot...
-
- What really bothers me is that these damaged disks appear to be the only
- ones that contain binhex and MacKermit, so I can't download any other PD
- stuff...
-
- I have managed to get hold of a copy of binhex on a TOS disk, which I've
- copied over to Aladin using the Gem file import program, but it comes
- through in a non-executable form. Do you happen to know of a way to
- make it into an executable application ?? I am willing to start editing
- disks to get this to work....
-
- Of course, an Aladin disk containing some kind of terminal emulator/download
- would be most welcome...
-
- Thanks in Advance
-
- Ralph Mitchell
- --
- Paper: Electronic Control Group, Lucas Powertrain Systems, Phoenix Way,
- Cirencester, Gloucestershire, GL7 1QG, United Kingdom.
- Voice: +44 285 657981 Fax: +44 285 658258
- Bang: ...!ukc!lucifer!ralph Janet: ralph@uk.co.lucasauto.eg
-
- ------------------------------
-
- Date: 5 Apr 91 03:26:14 GMT
- From:
- noao!ncar!elroy.jpl.nasa.gov!usc!zaphod.mps.ohio-state.edu!uakari.primate.wisc.
- edu!unmvax!nmt.edu!eahsnsr@arizona.edu (Eric A. Hobbs)
- Subject: Analyze! Metafiles (HELP!)
- To: Info-Atari16@naucse.cse.nau.edu
-
- Has anyone used the make Metafile option of the _Analyze!_ spreadsheet?
- It doesn't seem to work right. The files it creates don't correctly load
- into DP programs. Also, when I use GEM2PS, the program creates a series
- of definitions and the like, but never makes any print information.
-
- Could it be that it is creating IBM Metafiles? Or does the fact that it
- must use GDOS automatically mean that it is trying to create GEM Metafiles?
-
- ----------------
- Eric A. HOBBS!
- eahsnsr@JUPITER.nmt.edu
-
- ------------------------------
-
- Date: 5 Apr 91 05:53:16 GMT
- From: fernwood!portal!cup.portal.com!Bob_BobR_Retelle@decwrl.dec.com
- Subject: Atari cpu evolution
- To: Info-Atari16@naucse.cse.nau.edu
-
- Lotsa speculation about Atari using '040 and beyond..
-
- Golly.. Lenonard Tramiel has already stated that Atari will never use
- the 68040 (I think it was at the Glendale AtariFest last year..?), so
- why worry about it..?
-
- Atari wouldn't lie to us, would they..?
-
- BobR
-
- ------------------------------
-
- Date: 5 Apr 91 00:15:38 GMT
- From:
- noao!asuvax!ukma!psuvax1!uwm.edu!zaphod.mps.ohio-state.edu!rpi!news-server.csri
- .toronto.edu!torsqnt!geac!maccs!johns@arizona.edu (Conan the Barbarian)
- Subject: Atari cpu evolution
- To: Info-Atari16@naucse.cse.nau.edu
-
- Are people seriously replying to this message? Wouldn't it be wise to
- be at least a little skeptical?
-
- >Article 32880 of comp.sys.atari.st:
- >>From: kiki@uhunix1.uhcc.Hawaii.Edu
- >Newsgroups: comp.sys.atari.st
- >Subject: Atari cpu evolution
- >Keywords: Motorola 68040
- >Message-ID: <12229@uhccux.uhcc.Hawaii.Edu>
- >Date: 1 Apr 91 07:31:56 GMT
- ~~~~~
- Does this date mean anything to anyone?
- >Sender: news@uhccux.uhcc.Hawaii.Edu
- >Organization: University of Hawaii
-
- Or maybe this is one of them there prolonged jokes, and the joke
- is on me for not recognizing it as such. <insert fav. smiley>
-
-
- --
- John Schmitt
- johns@maccs.dcss.mcmaster.ca
- !unet!utai!utgpu!maccs!johns
-
- ------------------------------
-
- Date: 5 Apr 91 01:24:51 GMT
- From:
- noao!ncar!elroy.jpl.nasa.gov!sdd.hp.com!uakari.primate.wisc.edu!unmvax!nmt.edu!
- eahsnsr@arizona.edu (Eric A. Hobbs)
- Subject: Does Lode Runner game exist for the ST?
- To: Info-Atari16@naucse.cse.nau.edu
-
- In article <1991Apr3.205704.8441@unislc.uucp> bj@unislc.uucp (Bruce Jones)
- writes:
- >The subject says it all. I would like to get Lode Runner for the
- >ST if it exists. If yes, does someone want to sell their copy? If
- >the answer is no are there any similar type games that you can recommend?
-
- There is a good mono-only Lode Runner clone at atari.archive. It's
- from Germany and I think it's name is GO_UP.
-
-
- -------------
- Eric A. HOBBS!
- eahsnsr@JUPITER.nmt.edu
-
- ------------------------------
-
- Date: 5 Apr 91 06:02:12 GMT
- From:
- noao!ncar!elroy.jpl.nasa.gov!sdd.hp.com!think.com!mintaka!ogicse!unmvax!nmt.edu
- !eahsnsr@arizona.edu (Eric A. Hobbs)
- Subject: Flicker Palettes [was Re: Graphics on the STE...]
- To: Info-Atari16@naucse.cse.nau.edu
-
- In article <1991Apr4.223506.11715@imada.dk> micro@imada.dk (Klaus Pedersen)
- writes:
-
- [stuff deleted]
-
- >
- >I have some code at here that can display 256 graylevels on the mono screen.
- >(written in C). The program is less than 50 lines long, and features
- >an advanced errordiffusion ditering algoritm, with a small edge sharping
- >filter (simple laplace). This have been coupled with a 3 screen 'flicker'
- >mode. The result is approx. the same as 256 grayscale VGA LCD screens (I
- >think mine is better, because there is no shadows running around the screen,
- >but...)
- >The 3 screens is build to that the 'on' pixels is equally distributed on the
- >3 'planes' - this avoids flicker.
- >All this could used with color too, and I think the result would be even
- >better because you can pick colors which is closer to each other (than on and
- >off)...
- >In color mode you can probaly show true-color, but you will need to make some
- >additional code, to handle interesting subjets - such as picking reprensative
- >colors from the picture file...
- >
- >The program IS quick hack, and therefor it only runs on mono in 640x400.
- >I will send the source to who-ever that is interested...
- >
- >Klaus (micro@imada.dk)
-
-
- Wow! Now if only someone would write a mono GIF viewer with this!!!
- <Hint> <Hint> <Hint> :-)
- I would if I knew how to program!!!
-
-
- ------------
- Eric A. HOBBS!
- eahsnsr@JUPITER.nmt.edu
-
- ------------------------------
-
- Date: 5 Apr 91 06:09:54 GMT
- From: fernwood!portal!cup.portal.com!Bob_BobR_Retelle@decwrl.dec.com
- Subject: Graphics on the STE - v. generally speaking...
- To: Info-Atari16@naucse.cse.nau.edu
-
- >It seemed reasonable to point out here that VGA uses a minimum of (I hope I
- >have this right) 256 K of screen memory. I'm rather nearer to certain that
- >most super VGA uses a Meg. This isn't the sort of thing that would have bee
- >considered reasonable when the ST was designed.
-
- That's very true..!
-
- Of course, the ST was designed over *FIVE YEARS* ago, and has never really
- changed since then..
-
- ( WHY???)
-
-
- An Atari 8-bit screen only took up 8k of RAM... if you want to take it to
- extremes, an AstroCade only needed 2K to display a full screen..
-
- Why not change with the times..? Why not provide competitive graphics
- modes..?
-
-
- Why...?
-
- BobR
-
- ------------------------------
-
- Date: Fri, 5 Apr 1991 12:35 N
- From: HANTKE%KVI.NL@CUNYVM.CUNY.EDU
- Subject: hard disk cache
- To: Info-Atari16@naucse.cse.nau.edu
-
- Hi folks,
-
- Mathew (noao!asuvax!cs.utexas.edu!usc!snorkelwacker.mit.edu!bloom-beacon!eru!
- hagbard!sunic!mcsun!ukc!slxsys!ibmpcug!mantis!mathew@arizona.edu (mathew))
- writes:
-
- > I'm looking for a hard disk cache program for my ST, to speed up things a
- > little. I'm sure that there are hundreds of such things, so I wondered if
- > anyone had any recommendations...
- >
- > (...)
-
- Working under TOS 1.2 I have been using FATSPEED.PRG and DCACHE.TTP.
- DCACHE.TTP gives you the options to
- - select drive(s) to be cached
- - write through/on/off individually for each drive
- - total cache memory
- - maximum cache block size
- and some more. These features can also be controlled by an ACCessory, which you
- can optionally install.
-
- Bugs I came across using DCACHE are so far::
- 1. Write-through OFF and disk write-protected: Delete all files on disk #1.
- NO (!) write prot. is indicated and files are (virtually) deleted. Then do
- not flush and insert another disk (#2) which is unprotected.
- Flush, and disk #2 is deleted!
- 2. Write-through ON and disk protected: delete all files results in a
- strange error message (as far as I remember).
- 3. Accessory is informative, but not user-friendly.
-
- Summary
- You can live with the 'bugs' as far as you use wrt-thr always (which I do)
- and use the -ttp with appropriate parameters for information instead of
- the accessory.
-
- PLEASE,
- quote your address when asking questions in the digest. A kind of
- address as quoted above is not very useful for contacting people personally
- (what I tried).
-
- Cheers,
-
- Thomas
-
- (hantke@kvi.nl)
- ---------------
- Thomas Hantke, V. Oldenbarneveltlaan 16, NL-9716 EJ Groningen, The Netherlands
- fax ++3150-634003, phone ++3150-633259,778777
-
- ------------------------------
-
- Date: 5 Apr 91 05:05:03 GMT
- From: noao!ncar!news.miami.edu!umiami!dlk0ms9s@arizona.edu
- Subject: MEGA => MEGA STE Board?
- To: Info-Atari16@naucse.cse.nau.edu
-
- I have heard that Atari Canada has a bridgeboard for the MEGA computers to
- turn them into a MEGA STE. Now, like I said this is just stuff I have been
- hearing and I was wondering if any of our Canadian frineds, or anyone else out
- there has any info on this. And if so, when, if ever, might we see it in the
- US? From what I heard it plugs into the expansion port behind the CPU.
-
- Mark Santora
- Film Production Major at the Univeristy of Miami
- Internet: dlk0ms9s@umaimi.ir.miami.edu
-
- If the world was ruled by women, would missles be shaped any differently?
-
- ------------------------------
-
- Date: 5 Apr 91 01:36:27 GMT
- From:
- noao!ncar!elroy.jpl.nasa.gov!sdd.hp.com!uakari.primate.wisc.edu!unmvax!nmt.edu!
- eahsnsr@arizona.edu (Eric A. Hobbs)
- Subject: MEGA STE trouble
- To: Info-Atari16@naucse.cse.nau.edu
-
- In article <CMM.0.88.670807428.larserio@kvart.ifi.uio.no> larserio@ifi.uio.no
- writes:
- >I have two problems with my new MEGA STE, and wondered if anyone out there
- >hadany good ideas for fixing them:
- >
- >1) When using STEREO DMA sound (not normal ST sound) I get "static" (small
- > clicks kind of) in the sound. Sounds almost like a spark. Occurs even
- > when there is no sound (as long as the voulume is on). It has has no
- > strict pattern and occurs every now and then. Anyone have an idea ??
-
- I don't have an STE so I am assuming that you are playing samples.
- If the sample is recorded so that when you look at it on a sample
- editing program, the sample is not vertically centered over the "zero"
- output line, you will almost invariably hear a "pop" at the beginning
- and end of the sample. This is because the player is trying to jump
- from zero output to a higher output. In which case, any computer
- will pop while trying to make the sound.
- Of course, this is all assuming that you in fact _are_ playing samples.
-
- If any of this makes any sense to you, then good for you! :-)
-
- -------------------
- Eric A. HOBBS!
- eahsnsr@JUPITER.nmt.edu
-
- ------------------------------
-
- Date: 5 Apr 91 01:27:44 GMT
- From:
- noao!ncar!elroy.jpl.nasa.gov!jarthur!petunia!csuchico.edu!ekrimen@arizona.edu
- (Ed Krimen)
- Subject: MEGA STE trouble
- To: Info-Atari16@naucse.cse.nau.edu
-
- In article <CMM.0.88.670807428.larserio@kvart.ifi.uio.no> larserio@ifi.uio.no
- writes:
- >I have two problems with my new MEGA STE, and wondered if anyone out there
- >hadany good ideas for fixing them:
- >
- >1) When using STEREO DMA sound (not normal ST sound) I get "static" (small
- > clicks kind of) in the sound. Sounds almost like a spark. Occurs even
- > when there is no sound (as long as the voulume is on). It has has no
- > strict pattern and occurs every now and then. Anyone have an idea ??
- >
-
- I get this on my STe as well. Not as often as it seems you do, however. Mine
- occurs usually about once every two weeks or so. Could it be non-computer
- related, such as your amp or speakers?
-
-
- --
- Ed Krimen ...............................................
- ||| Video Production Major, California State University, Chico
- ||| INTERNET: ekrimen@ecst.csuchico.edu FREENET: al661
- / | \ SysOp, Fuji BBS: 916-894-1261 FIDONET: 1:119/4.0
-
- ------------------------------
-
- Date: 5 Apr 91 02:05:17 GMT
- From: wixer.UUCP!bgodot@ucbvax.berkeley.edu (Paul Ortega)
- Subject: Problems with ST Writer (3.8) double column format.
- To: Info-Atari16@naucse.cse.nau.edu
-
- I've been having problems with the double-column formatting with
- version 3.8 of ST Writer.
-
- It truncates the line at column 105, no matter what I set the second
- right margin to.
-
- I'm using a Star NX-1000 and the EPSON MX-80 printer driver
- (EPSMX80.DAT). It could be the printer driver messing it up, but
- seems the closest printer driver to the Star.
-
- Is there a printer driver specificly for the Star NX-1000?
-
- ------------------------------
-
- Date: 4 Apr 91 18:17:17 GMT
- From: garfield!carlos@uunet.uu.net (MiG - Miguel Borges)
- Subject: RUFUS problem - it won't run!
- To: Info-Atari16@naucse.cse.nau.edu
-
- I ftp'ed RUFUS.TOS from the atari.archive. I ran the self-extracting archive,
- and then booted up the disk. The GDOS-clone was in the auto folder, and
- the fonts were in the GEMSYS folder, just like the archiver left them.
- I ran RUFUS.PRG, but all I got was an alert box, saying something like
- "GDOS falhure - Ungultiges Handle" I assume it's german. Anybody know
- how to get this working? Are there english docs available?
-
- --
- C. Miguel Borges |"Cyberspace. A consensual hallucination... |||
- carlos@odie.cs.mun.ca|Unthinkable complexity. Lines of light ranged |||
- an630@po.cwru.edu |in the nonspace of the mind, clusters and / | \
- ad040@yfn.ysu.edu |constellations of data. Like city lights, receding..."
-
- ------------------------------
-
- Date: Thu, 4 Apr 1991 22:09 PDT
- From: MHD@PCR.SLAC.Stanford.EDU
- Subject: Specre GCR MAC -> DeskJet Printer Driver Needed
- To: Info-Atari16@naucse.cse.nau.edu
-
- John Kawakami @ocf.berkeley.edu requested information about using the
- MacPrint printer driver with Spectre GCR. Perhaps this may help.
-
- I have my DeskJet 500 working just fine with Spectre GCR 3.0 and
- MacPrint. I did have some problems to begin with but found a solution
- that worked.
-
- The cable that comes with MacPrint is a Mac serial cable. Just use
- your own parallel cable and hook up your ST to the parallel port
- of the DeskJet with it.
-
- First, make sure that your DeskJet is turned on before turning on the
- ST. (There has been correspondance this past week about installing a
- diode or pnp transistor to make this procedure unnecessary.)
-
- Install MacPrint according to directions. You may have problems when
- using the CHOOSER to set the DeskJet as the printer driver. If the
- SETTINGS menu does not work and you cannot set the printer port, then
- do the following:
-
- 1. Look in the INSIGHT folder inside your system folder. MacPrint
- has made a new file there 'DeskJet info' ( or 'DeskJet Plus info').
-
- 2. Move this file outside of the INSIGHT folder so that it is just in
- the system folder but not inside any folder therein.
-
- 3. Try again. The settings menu should work now.
-
- When you have everything working get yourself Adobe Type Manager. The
- results are great on the DeskJet.
-
- You can save lots of money by refilling your ink cartridges. RayDar
- Products, 270 Winston Rd., Andrews AFB, MD 20331 sells a kit to refill
- DeskJet ink cartridges for $17.95 plus $2 for shipping and handling.
-
- Martin Donald
-
- Bitnet MHD@SLACPCR
- DECnet PCR::MHD (44.37 = 45093)
- Internet MHD@PCR.SLAC.STANFORD.EDU
-
- ------------------------------
-
- Date: 5 Apr 91 09:09:07 GMT
- From:
- noao!asuvax!ukma!usenet.ins.cwru.edu!agate!darkstar!bill!monsoon@arizona.edu
- (Monsoon)
- Subject: Spectrum/3-D/animation
- To: Info-Atari16@naucse.cse.nau.edu
-
- In article <1991Apr4.190424.13189@milton.u.washington.edu>
- alexd@milton.u.washington.edu (Alex Danilchik) writes:
- >Can this be done:
- >
- >Create a 3-D model in Sculpt 3-D, paint/render it with
- >Spectrum, then animate the frames?
- >
- >Is there any software pacakge/integration of packages,
- >that can do this for me using Spectrum? I do want the
- >advantage of all those colors on the screen at once...
- >
- >Thanks
- >
- >gunnar
- >alexd@milton.u.washington.edu
-
- There are several ways to do this. First of all, to get animation
- using Spectrum 512, there is a program called Unispec, which is actually an
- upgrade module to Spectrum, which turns it into a desk accessory and adds
- many new features (including animation.) The new additions alone merit
- recommendation for anyone who uses Spectrum, such as better anti-alised(sp)
- functions, and an improved dithered blur, just to name a scad few.
-
- As for rendering it in spectrum, there is a painful way, and some
- other not so painful ways...
-
- First of all, you could always just use Cad 3-D (I believe you are
- referring to CyberSculpt, if not, then the rest of these techniques do not
- apply...) and do a straight degas import into Spectrum, frame by frame (also,
- Cyber Control, an animation scripting language, is recommended for this) and
- tweak the colors using spectrums global color commands.
-
- There is also a program from the magazine STart, called RezRender.
- This program can use Cad 3-D objects, and raytrace them using various styles
- (flat polygons, gourad shading, off the top of my head), BUT can only render
- in 16 shades (yes you can make 16 psuedo-shades, on most colors except some
- such as grey). It does, however have many excellent features like shadowing,
- chekerboard plane backgrounds, gradient backgrounds, and limited animation.
- I believe this can be founds in the February 1989 or 1990 issue of STart.
-
- Another program, called GFA Raytrace (which is VERY hard to find, but
- one source would be on the British-mag ST Format, not sure which issue) which
- will raytrace objects in full, glorious 512 colors, BUT it is not compatible
- with Spectrum 512, and the tools are quite limited.
-
- Also, there is news of a new program from a company called Lexicorp,
- which is creating a 3-D rendering system far superior to the Cyber series.
-
- In summary, it is a bit of a pain to do 3-D animation in Spectrum.
- Like any system, you need gobs of memory (even at 8 Megs you run out of room!),
- and things like an accelerator are VERY handy to have (it took me at least
- 12 hours to render 16 frames of a rotating object on a stock 1040 using
- RezRender).
-
- ------------------------------
-
- Date: 5 Apr 91 01:22:47 GMT
- From:
- noao!ncar!elroy.jpl.nasa.gov!jarthur!petunia!csuchico.edu!ekrimen@arizona.edu
- (Ed Krimen)
- Subject: Stalker/Steno & Diamond Back II w/Cache
- To: Info-Atari16@naucse.cse.nau.edu
-
- In article <1991Apr4.223352.19625@netcom.COM> yonder@netcom.COM (Christopher
- Russell) writes:
- >I am looking for the latest versions of Diamond Back II with Cache (v2.2) and
- >the new version of Stalker/Steno (with Zmodem, etc, v3.0 ?) All of the
- >mail order places I have called don't have these products in stock. Anybody
- >know of a place that has these? I know I could probably get these both
- >direct, but the "Street" price on these products is much lower than the list.
-
- The latest version of STalker is 2.06. Version 3.0 won't be out for
- a couple of months still; at least that's what Eric Rosenquist says. I highly
- recommend you get STalker now and upgrade later.
-
-
- --
- Ed Krimen ...............................................
- ||| Video Production Major, California State University, Chico
- ||| INTERNET: ekrimen@ecst.csuchico.edu FREENET: al661
- / | \ SysOp, Fuji BBS: 916-894-1261 FIDONET: 1:119/4.0
-
- ------------------------------
-
- Date: 4 Apr 91 21:13:42 GMT
- From: fernwood!portal!atari!apratt@decwrl.dec.com (Allan Pratt)
- Subject: The cause of the phantom typist
- To: Info-Atari16@naucse.cse.nau.edu
-
- micro@imada.dk (Klaus Pedersen) writes:
- >> To exorcise one may
- >> 1) Replace expressions like ++i; if(i == ANYPOWEROFTWO) i= 0;
- >> by ++i &= (ANYPOWEROFTWO - 1)
-
- >jan@janhh.hanse.de (Jan Willamowius) writes:
- > in what language do you want to write that?
- >What you are writing is :
- > ++i = ++i & (APO2-1);
- > - no matter how you try to hide it...
-
- That's not true. Semantically, "i += 2;" is equivalent to "i = i + 2;"
- but "++i += 2;" is not equivalent to "++i = ++i + 2;" because the
- people who designed C are smarter than that. The side-effect is
- performed only once.
-
- But regardless of that, you are suggesting that what happens in a C
- statement is uninterruptable, so doing something in a single statement
- makes it safe when it might be unsafe in multiple statements. This is
- not true. On the 68000 family, an interrupt can come between any two
- instructions. Individual instructions can't be interrupted, but the
- bus can be arbitrated away (for DMA, for example) between the read and
- the write of a read-modify-write instruction, except for the TAS
- instruction which is explicitly atomic.
-
- ============================================
- Opinions expressed above do not necessarily -- Allan Pratt, Atari Corp.
- reflect those of Atari Corp. or anyone else. ...ames!atari!apratt
-
- ------------------------------
-
- Date: 5 Apr 91 05:43:38 GMT
- From: fernwood!portal!cup.portal.com!Bob_BobR_Retelle@decwrl.dec.com
- Subject: union demo 2
- To: Info-Atari16@naucse.cse.nau.edu
-
- Lotsa questions about various "demos" for the ST..
-
- These demos are great, but.. is anyone involved in creating the demos
- also involved in creating anything useful..?
-
- If you bother to wait through all the text on most of these demos, they
- all seem to be self-congratulatory messages between various software
- pirating groups...
-
- We've got a wonderful body of "demos" to run on our computers, but do they
- equate into anything "real"..?
-
- BobR
-
- ------------------------------
-
- End of Info-Atari16 Digest
- ******************************