HDTenEightyP/NetNews huggingface dataset:
From: Roger.Sheppard@bbs.actrix.gen.nz
Subject: Re: Word Processors
Organization: Actrix Information Exchange
Date: Thu, 16 Apr 1992 23:17:21 GMT

In article <1992Apr16.144337.10819@miavx1.acs.muohio.edu> rlcollins@miavx1.acs.muohio.edu (Ryan 'Gozar' Collins) writes:
> In article <1992Apr15.230239.23854@actrix.gen.nz>, Roger.Sheppard@bbs.actrix.gen.nz writes:
> > In article <1992Apr15.134800.40129@yuma.acns.colostate.edu> komives@lamar.ColoState.EDU (Robert Komives) writes:
> >> 	No Postscript output.
> 
>      Now I thought FSMGDOS came with a driver for postscript? At least
> Bob Brodie said it would when I asked him about it in Chicago.
> 
> > Does this have the same problem that all GDOS type program have, you
> > nead 2 lots a fonts, one for the screen and one for the printer,
> > plus you can't load fonts on the fly, only at run time...!!!
> 
>      With FSMGDOS you can load and unload fonts on the fly. And from
> what I understand, it has only one font file for each font.
> 
> Later.......
> 
> ------======={{{{{{{{((((((Ryan 'Gozar' Collins))))))))}}}}}}}}=======--------
> "You can give her the usual		     rlcollins@miavx1.acs.muohio.edu
> things: candy, flowers, promises 	      RC1DSANU@miamiu.acs.muohio.edu
> you don't intend to keep."		      rcollins@apsvax.aps.muohio.edu
>   -Cogsworth	 			      R.COLLINS1 on GEnie
> (Beauty and the Beast)
> 	------======={{{{{{{{(((((())))))))}}}}}}}}=======--------

One of the BIG problems is that FSM GDOS has not bean released to the
Public, and from what I have read there is current release date at all..
-- 
***  Roger W. Sheppard      *      Roger.Sheppard@bbs.actrix.gen.nz  ***
***  85 Donovan Rd        *    *   GEnie.  R.SHEPPARD5               ***
***  Kapiti                        At least I don't Flicker,         ***
***  New Zealand..          *      not like a dying light globe      ***
From: elendir@pegase.enst.fr (Vincent Habchi)
Newsgroups: comp.sys.atari.st
Subject: GIF
Keywords: File format.
Date: 15 Apr 92 18:04:12 GMT
Organization: Telecom-Paris, France


 Hello.
 This may be a FAQ, but I'm looking for the GIF ('89 and '87) file format.

 I tried some GIF viewer (Viewgif 1.2, zum beispiel) but it cannot handle the TT
low rez and med rez, and that's a pity.

 SO I plan to write a gif-viewer which can do it, and I will add a JPEG encoder/
decoder.

 Thanks for any input.

 Vincent.

PS : I have no CompuServe account, but I do have free ftp.
From: adhir@cygnus.umd.edu (Alok Dhir)
Newsgroups: comp.sys.atari.st
Subject: Re: Gemulator
Date: 9 Apr 92 19:49:07 GMT
Organization: /etc/organization

This is for all you ST fanatics that keep bringing up PC Ditto.  PC Ditto
is a software implementation of a 8088 emulator.  It runs at about 10%
the speed of an IBM XT, and is unusable in just about all respects other
than listing directories.  It would probably be alot faster on a TT or
Falcon or whatever, but unfortunately it is no longer supported, and will
not run on anything above Tos 1.2 or so.

Gemulator, on the other hand, is an emulator that will let you run ST
stuff on a pretty average PC compatible (386 and better) at a very
usable speed.

ATonce and other card based PC emulators are junk.  They limit you to
a 286 or 386sx processor, which people have pointed out are about as
useful as their STE :)

					- Al
From: hutch@bellman.lanl.gov (John Hutchinson)
Newsgroups: comp.sys.atari.st
Subject: Re: mega ste price
Date: 15 Apr 92 15:29:14 GMT
Article-I.D.: newshost.1992Apr15.152914.9456
Reply-To: hutch@bellman.lanl.gov
Organization: Los Alamos National Laboratory

In article 8558@actrix.gen.nz, Roger.Sheppard@bbs.actrix.gen.nz () writes:

>Have you ever been to New Zealand, no I don't think so, so you comments
>are a load of rubish, you are nothing but a Atari bigot, get with it..

Yes, I _have_ been to New Zealand... several times as a matter of fact.
And it's a fabulously beautiful country with _mostly_ wonderful, intelligent,
friendly people... of course, there are always exceptions, right, Roger?

And make up your mind, Roger, first you call me a nerd and now I'm an
Atari bigot?  I think "nerd" is probably more accurate since I own 4
computers (Atari, Apple and yes, a 386 clone).

>Atari has just posted 1/4 year loss of 4.4 million...

You sure that was for the last 1/4 and not just the last week?  :) 
Got any more good news to make Atarians feel better?

>What a load of Crap, most of that software you list is no longer supported,
>and Flash II is not even out yet, Signum III is in German the ICD utils

Uh, sorry, Roger... Flash II _is_ out now.  Was released by my buddy John
Trautschold at the Toronto ACE show.  Should I quote you... "get with it" ?

-Hutch-
From: ziggy@grafted.UUCP (anthony lewis)
Newsgroups: comp.sys.atari.st
Subject: Re: mega ste price
Date: 14 Apr 92 00:38:33 GMT
Organization: GRAFTED, Central Indiana's Usenet BBS 317-881-4369

>  
> According to the benchmarks in a past current notes, a Mega STE
> will outperform a 386/25 machine.  A standard STE will outperform
> any 286 machine, and the TT blows away a 486/25.
>  
        Dont believe all of those "benchmarks" they are always a little
biased to prove what ever the testers want to..... Its all in what /
how it is preformed..
                                        Ziggy.


--
anthony lewis
The Grafted Branch BBS
317-881-4369
internet: ziggy@grafted.UUCP
uucp: ..!uunet!grafted.UUCP!ziggy
 = = Grafted Branch BBS (317) 889-6997 2 Gig on-line = =
Newsgroups: comp.sys.atari.st
From: ganea@inmos.co.uk ()
Subject: RE GALAXY CAD
Reply-To: ganea@inmos.co.uk ()
Organization: INMOS Limited, Bristol, UK.
Date: Wed, 15 Apr 1992 15:09:39 GMT



Hi EveryOne

I tried running Galaxy Cad on my TT machine ( 2 Meg ST Ram
and 4 Meg TT Ram ).
I got a Boot strap loaded message followed closely by 2 Bombs,
(Bus Error !!). Has anybody been able to get this program to
work on the TT. Is anybody out there able to do a port of the
ST spacific bits to the TT machine, and sort out the 'BUGGY' 
user interface at the same time ????
Has anybody tried the Mac version on the TT using Spectra ??


-- Andy

-- ganea@inmos.co.uk
Newsgroups: comp.sys.atari.st
From: aq115@cleveland.Freenet.Edu (Robert C Glover)
Subject: Re: TOS 2.06 for the MegaSTe
Organization: Case Western Reserve University, Cleveland, Ohio, (USA)
Date: Sun, 12 Apr 92 00:02:08 GMT


No, TOS 2.06 is not included with that high density upgrade.  It's
not required.  See, instead of an Ajax chip, you get a small PCB
board that plugs into the socket where the disk controller went,
and it handles the mode switching for the disk drive.  It's a
simple software patch so you can use all versions of TOS.  I'm
not sure TOS 2.06 would eliminate the need for this patch, as
TOS 2.06 is set for an Ajax chip, not his board.  Next time I'm
on GEnie, I'll ask him about that, and try to get his phone
number for you.  If you have access to GEnie, I believe is
Email address is PAUL.WU.
 
Rob
-- 
| Robert Glover                               GEnie:  R.GLOVER3 |
| Internet:           rg@turing.acs.virginia.edu                |
| Cleveland Freenet:  aq115@cleveland.freenet.edu               |
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
From: vicb@clark.edu (Victor Bruhn)
Newsgroups: comp.sys.atari.st
Subject: little noises
Date: 13 Apr 92 22:11:56 GMT
Article-I.D.: clark.1992Apr13.221156.8415
Distribution: usa
Organization: Clark College, Vancouver, Wa.  USA


I have this small problem with my new STe.
For the first three weeks the built-in floppy was whisper quiet, but for
the last three weeks the drive motor has been rubbing on something, 
producing this annoying squeak (for lack of a better word) at a steady
pace (about 3 times/sec.)  Sometimes it's pretty loud, sometimes not.
The drive still does its job just fine, no problems there yet.
I originally wasn't sure if my local dealer would fix it under warranty
since I mail ordered it, but when I called them to ask about it I never
got that far- I was told that 'annoyances' were not covered under warranty.

Anybody have any input/ideas?  I really would like to have my quiet drive
back.  Is there anyone from Atari out there that might have a suggestion?

Thanks-
Victor Bruhn
vicb@clark.edu
From: heijink@pttrnl.nl (Heijink R.J.)
Newsgroups: comp.sys.atari.st
Subject: Re: File number limit ?
Date: 8 Apr 92 06:44:11 GMT
Organization: PTT Research

charlie@mudhoney.micro.umn.edu (Charlie Demerjian) writes:

>In <7252@laas.laas.fr> doucet@ripolin.laas.fr (Jean-Etienne Doucet,149,6323) writes:

>>Yesterday, when grouping fonts collections on one floppy,
>>the copy stopped with the message  "invalid copy operation".
>>When looking at what have been copied on the floppy, I noticed
>>it contained 128 files, and had much free space left.
>>This is a too familiar number to not remark it.

>>So, the question is:
>>  - is 128 a limit for the number of files that can fit on a floppy?

>I think you might have filled up your FAT's. Try using a formatter that allows you to expand 
>the size of the FAT and retry the copy operation. There is a German program that allows you to 
>do this. It is called Hyperformat, and it allows you to control almost all the disk format 
>parameters.

This cannot be true. The FAT is just large enough to contain pointers to all sectors of the
DISK. In general I have some doubts about attempts to do strange formatting things. A number of
responses to this mail state that the problem is in the size of the root directory. For
mysterious reasons this size is fixed. For subdirectories this restriction does not hold.

Rudolf J. Heijink
--
Rudolf J. Heijink               phone : +31 70 332 5709
PTT Research POB 421            fax   : +31 70 332 6477
2260 AK  Leidchsendam  E-Mail: R.J.Heijink@research.ptt.nl (internet)
Netherlands                     ...!hp4nl!dnlunx!heijink (UUCP)
Newsgroups: comp.sys.atari.st
From: oddjob@oz.plymouth.edu (Andrew C. Stoffel)
Subject: Re: __NEW__ Mega STE deal
Reply-To: oddjob@oz.plymouth.edu (Andrew C. Stoffel)
Organization: Plymouth State College - Plymouth, N.H.
Date: Wed, 15 Apr 92 21:55:33 GMT

In article <1992Apr14.165359.13313@umiami.ir.miami.edu> dlk0ms9s@umiami.ir.miami.edu writes:
>New Atari Package Deals!
>	Purchase a MEGA STE and get cash off on the monitor.

I heard about this Monday when I called 8 Atari dealers lookig{ for a
Mega STe (4 meg, no HD)
>	 example:
>	  one store, nameless, offers

>		MEGA STE 1 	$849
>		MEGA STE 2	$899
>		MEGA STE 4	$989

One (nameless) dealer offered me a mega STe w/the setup I mention
above for $749 (but they didn't expeft to get them in stock for a
couple days). The next best deal was $799 and shipping w/in 48 hours
of the order being placed. Hopefully I'll get it by Friday... %-).

>	Add a 50 meg hard drive with 19ms for $100
>	Add a 68881 co processor for $79
What is the market price for one of these ? I'd love to get it.....



> These prices are current.  BTW, this is an ATARI deal.  They are sponsoring
>this package deal.  $1250 for a color 4 meg MEGA STE is a really good deal. 
>Not to mention, the prices are dropping.  Something like this is what to watch
>out for.
It looks like a great deal, except I already have mono & color & a
larger HD etc. Just needed a replacement machine (ie. CPU).

>Mark Santora
>  My name is Mark, but my friends call me Mark...
>						Founder D.D.I. Productions
>

If anyone is interested in the 8 dealers & their prices ask by e-mail.
No need to clutter this group with such short lived information. (I
asked each dealer (I think) about 4 meg STe's and Mega STe's - CPU
only.


-Andy-
-- 
|"The Snark WAS a Boojum, you see!"   |                                |
|"Reality !?! Isn't that something    |     andys@psc.plymouth.edu     |
|    you sprinkle on ice ??"          |     oddjob@oz.plymouth.edu     |
From: baffoni@aludra.usc.edu (Juxtaposer)
Newsgroups: comp.sys.atari.st
Subject: Atari Unix ...
Date: 14 Apr 1992 17:53:35 -0700
Organization: University of Southern California, Los Angeles, CA
Distribution: world
NNTP-Posting-Host: aludra.usc.edu


	Hi all,

	The recent discussion on Atari Unix has left me a couple of questions
that I hope someone out there can answer (if they are doing the development)
or who can give a knowledgeable answer (remarks about how ASV will never come
out, Atari will fold before it is available, or other negative/non-productive
comments are NOT welcome).

	The Atari Unix is supposed to be a full port of System VR4, with the
Wish (sp?) windowing interface.  What I am wondering is if it will support
the currently-existing SCSI/ACSI ethernet cards (I would assume that it would
support any VME/Megabus cards as it is on the bus like most other UNIX ethernet
cards)?  If it does support ethernet (or SLIP, etc.), will it support NFS so
that it can mount fileservers, other accounts, etc.?  
	Will it support 3rd party video cards (say one of the plethora of 
1024x768 cards thave hve come out), or are we stuck with using only the Atari
Monochrome (or other brands I would suppose) monitors?

	I realize that ASV doesn't have this support now, or it would already
be out :), but have any developers pledged support for these issues yet?

	Thanks,

	Mike Baffoni

	UCS, USC
From: hjv@phil.ruu.nl (Hendrik Jan Veenstra)
Newsgroups: comp.sys.atari.st
Subject: Re: TeX: what...how?
Date: 13 Apr 92 12:30:30 GMT
Organization: Department of Philosophy, University of Utrecht, The Netherlands

morrison@ee.ualberta.ca (Robert Morrison) writes:

>	What is TeX?  My impression is that it is a typesetter of some sort.

TeX is a typesetting language, originally developed to typeset mathematical
books & articles. It's available for (almost?) every kind of machine, and it's
public domain (!). In mathematical publishing it already has become the de
facto standard, because with TeX you can do (almost?) everything concerning
complex formulae (make a stack of 20 exponents, with 15 different sub- and
superscripts :) and other math stuff.
I can't help you on the language itself - TeX is one of the things on my list
of 'things to do and learn when at last I've got some time' :)
But I know there are some good books on using TeX (titles anyone?) - and I
guess the purchase of such a book will be justified, not because TeX is so
difficult to learn (I am told it's rather straightforward), but because it has 
a multitude of possibilities.
Hope this helps a little.


--
Hendrik Jan Veenstra - Department of Philosophy
University of Utrecht - The Netherlands
USENET: hjv@phil.ruu.nl   * don't worry about life; it's not permanent *
From: hintz@gulliver.informatik.uni-dortmund.de (Stefan Hintz)
Newsgroups: comp.sys.atari.st
Subject: Re: New Graphics Card: Spektrum
Keywords: Graphics Card
Date: 8 Apr 92 13:38:40 GMT
Organization: University of Dortmund, Germany



The Spektrum Graphics Cards where developed by

Wilhelm Mikroelektronik
Luenen
Germany

At the moment are three different types of cards available:

Spektrum 1	        	with 256 colors out of 16777216.
Spektrum 1 HC (HighColor)	with 32768 colors. (5-Bit each of
				the Red,Green Blue channels.)
Spektrum 1 TC (TrueColor)	with 16777216 colors. (8-Bit each of
				the Red,Green Blue channels.)

The Spektrum 1 HC can also display 256 colors.
The Spektrum 1 TC can also display 32768 and 256 colors.

The cards are shipped with GEM-VDI-Drivers.
All clean GEM-Software runs:
Gemini, Turbo-C, Interface, Harlekin 2, Charly-Image, GEM-View etc.

All three cards are designed for the VMEbus. For the MEGAbus is an adaptor
available. The cards have 1 Megabyte videomemory on board.

Stefan Hintz

hintz@gulliver.informatik.uni-dortmund.de
Newsgroups: comp.sys.atari.st
From: pbh@jake.cc.wayne.edu (Patrick Haggood)
Subject: Re: Good software (Was: mega ste price
Organization: Wayne State University, Detroit
Date: Tue, 14 Apr 1992 17:57:46 GMT

In article <H.&578FyydmsU@icemark.oche.de> sigrorn@icemark.oche.de writes:
>And what machine would you buy if you selected:
>	khoros     as Graphix package  (UN*X-box)
>	DBase IV   as database package (MS-DOS)
>	CyPress    as WordProcessor    (ST-TOS)
>Hmm?         ;-)
>Benedikt Eric Heinen

A 50MHZ EISA 486 Intel box running Interactive 3.0, VP-IX and Gemulator 

(nobody likes a smart-ass....)   :-)

As an aside, the above would probably cost around $9K. 

Power has it's price.
-- 
"Again, the kingdom of heaven is like unto a net," | DoD #1966	
	Matthew 13:47                              | 81 Honda CB400T Hawk
From: dlk0ms9s@umiami.ir.miami.edu
Newsgroups: comp.sys.atari.st
Subject: Re: GEMULATOR (WAS RE: SUDDEN VIEW VS.
Date: 6 Apr 92 16:12:00 EDT
Organization: Univ of Miami IR

In article <12367@umd5.umd.edu>, adhir@cygnus.umd.edu (Alok Dhir) writes:
> In article <1992Apr5.151539.15944@imada.ou.dk> micro@imada.ou.dk (Klaus  
> Pedersen) writes:
>> hrs@aber.ac.uk (Herbert Martin Sauro) writes:
>> 
> DOS/Windows/OS/2 apps.  Another cool thing is that Darek was hinting  
> towards the fact that it will actually run Spectre 3.0!  So we'll have  
> Mac, ST and PC in one box.


  We already have one!  It is called an ST plus GCR plus At ONCE!

> 
> My question is whether it will support an aftermarket sound board like  
> Soundblaster Pro to emulate the STe sound...
> 
> 					- Al


  Mark Santora
From: silvert@cs.dal.ca (Bill Silvert)
Newsgroups: comp.sys.atari.st
Subject: TOS chips
Date: 12 Apr 92 18:45:01 GMT
Reply-To: silvert@biome.bio.ns.ca (Bill Silvert)
Distribution: na
Organization: Habitat Ecology Div., Bedford Inst. of Oceanography

I have a 1040ST with TOS 1.4 and a Mega-2 with TOS 1.2.  Before I bother
opening these up, can anyone tell me whether the TOS chips are (or are
likely to be) interchangeable?  I use the Mega-2 much more and would
rather switch for free than upgrade for $$$$.
-- 
William Silvert, Habitat Ecology Division, Bedford Inst. of Oceanography
P. O. Box 1006, Dartmouth, Nova Scotia, CANADA B2Y 4A2.  Tel. (902)426-1577
InterNet Address: silvert@biome.bio.dfo.ca
-- 
William Silvert, Habitat Ecology Division, Bedford Inst. of Oceanography
P. O. Box 1006, Dartmouth, Nova Scotia, CANADA B2Y 4A2.  Tel. (902)426-1577
InterNet Address: silvert@biome.bio.dfo.ca
Newsgroups: comp.sys.atari.st
From: sakari@laureline.cs.hut.fi (Sakari Aaltonen)
Subject: Re: HELP ME on TOS 1.? 2.? 3.?
Reply-To: sakari@niksula.hut.fi (Sakari Aaltonen)
Organization: Helsinki University of Technology, Finland
Date: Mon, 6 Apr 1992 15:52:24 GMT

TOS is short for The Operating System. Thus spake Tim Oren.

It does what operating systems do.

Rainbow TOS is another name for TOS 1.04.

TOS version numbers seem to reflect the machines they are meant for. 1.x is
for the ST, 2.x is for the STe and 3.x is for the TT. The hardware of the
machines is not uniform.
Also, it is commonly thought that TOS versions with bigger numbers have less
bugs.

Hope this helps,
s.a.
--
-----------------------------------------------------------------------------
Sakari Aaltonen                             Helsinki University of Technology
Email: sakari@cs.hut.fi
---  You can't keep a Finn down without him getting all red in the face  ----
From: dingelde@igd.fhg.de (Dennis Dingeldein)
Newsgroups: comp.sys.atari.st
Subject: Why are there NO GL-Viewers for the ST ???
Date: 10 Apr 92 13:21:14 GMT
Organization: IGD Darmstadt

Hello!
After seeking some months for a GL-Viewer for my ST, I must admit
that I did not found anything. "xviewgl" might run on the TT using
X11R* , but that's not my hardware.

Is there such a beast, or did someone works on it ?

Dennis
-- 
Dennis Dingeldein	ZGDV Zentrum fuer Graphische Datenverarbeitung
(dingelde@igd.fhg.de)	Wilhelminenstr. 7 		    mWm
			D-6100 Darmstadt, West Germany	    ~.~
			Phone: +49/6151/155-112		    \-/
From: jon@chopin.udel.edu (Jon Deutsch)
Newsgroups: comp.sys.atari.st
Subject: Terminal Program Blues
Keywords: terminals
Date: 15 Apr 92 16:08:44 GMT
Organization: University of Delaware - What state is that in?


I'm looking for a terminal program for the ST that can handle IBM
ANSI BBS Graphics.  I'm not having much luck.

I've heard that a commercial program called INTERLINK from Intersect
Software can handle it.  Does anyone know how I can obtain it, though?
I don't have the address or phone number of the company, and there's
no Atari resellers anywhere near where I live.

Is there any other terminal program that could do what I ask?

Please send replies directly to me, since I don't have access to
this list.  Thanks for your time.

--Karl Lohner.     klohner@drunivac.drew.edu
From: charles@taloa.unice.fr
Newsgroups: comp.sys.atari.st
Subject: Need informations about the MIDI interface....
Date: 9 Apr 92 13:55:46 GMT
Organization: University of Nice - Sophia Antipolis, France

Hi atari users...

I look for informations about MIDI. Does it exist a ftp server or
something like that where I can find the complete (or incomplete !!!)
dscription of MIDI (some examples a welcome.......).

It's really very important.......

Please mail me if you have any informations.........

--
From: dtarico@misvax.mis.arizona.edu
Newsgroups: comp.sys.atari.st
Subject: 030 accelerators
Date: 9 Apr 92 19:46:50 GMT
Distribution: usa, canada
Organization: University of Arizona

Does anybody know if the SST will fit in a Mega ST that has an internal
hard drive (the ICD micro kit)?  Also, if somebody could repeat the info
about the Tiny Turbo introductory offer, I would appreciate that.
Thanks.

-- 
----------------------------------------------------------------------------
        Doug Tarico                      
    dtarico@mis.arizona.edu                  Bombs, not Hippies!
       (602)795-7633                       
----------------------------------------------------------------------------
From: eker@cwi.nl (S.M. Eker)
Newsgroups: comp.sys.atari.st
Subject: Re: software blitting
Date: 9 Apr 92 18:00:30 GMT
Reply-To: eker@cwi.nl (S.M. Eker)
Organization: CWI, Amsterdam

In article <bnell.702755753@ferrari>, bnell@ferrari.siemens.com (Bill
Nell) writes:
|> I've been writing a game and I've written my own software blitter routines
|> (since I have a plain 520) and I was just wondering if the routines I had
|> were fast enough compared to any others that may be out there.
|> 
|> On average I can do 900 blitter operations a second.  Each operation is
|> 16x16 pixels, computes a mask, does a couple of specific things for my game
|> and then combines the two rasters.  Does anyone know if this is a decent
|> speed or what?  I've tried the built in line-a routines a long time ago
|> but they are truly lame.
|> 
|> 						Thanks
|> 						Bill

It all depends on exactly what you're doing; assuming you're writing to all
4 planes in lo res you're hitting the screen at

900 * 16 * 4 = 57600 words/sec  =  ~138cycles/word

This seems slow for most operations. Shifting is a pain but even this can be
done reasonably effeciently. Some hints for faster code:

1.	Use linear code (with computed jump ins if necessary)
2.	Write to 2 planes at a time with long word instructions.
3.	Use a separate routine for each operation - generalized blit routines
	are always slow.
4.	Rearrange any boolean formula to minimize the number of ops; eg
	the classic "cookie cut" function
	(SPRITE and MASK) or (BACKGROUND and (not MASK))
	(4 ops) becomes:
	((BACKGROUND eor SPRITE) and MASK) eor BACKGROUND
	(only 3 ops)

There various other tricks but it depends on exactly what you're trying to do
and how much memory you can afford for precomputed stuff.

Steven