8bitfiles.net/archives/archives.tar/archives/genie-commodore-file-library/CompSysCBM/070496A.TXT/text0019.txt

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Newsgroups: comp.sys.cbm
Subject: Re: Multithreading OS for the C64, Erratum
Date: 4 Jul 1996 03:42:39 GMT
Organization: Department of Economics, University of Newcastle
Lines: 16
Message-ID: <4rfejf$[e-mail]>
References: <4q3u1i$[e-mail]> <[e-mail].=
net> <[e-mail]> <4rcqt2$[e-mail]=
le.edu.au> <4re6d3$[e-mail]>
NNTP-Posting-Host: econ70.newcastle.edu.au
Mime-Version: 1.0
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Content-Transfer-Encoding: 7bit
X-Mailer: Mozilla 1.2N (Windows; I; 16bit)

[e-mail] (Andre Fachat) wrote:
>Bruce R. McFarling ([e-mail]) wrote:
>> ... (That includes the original 6502, with 64K RAM,
>> 16K ROM, and 0K < IO < 4K

>You mean C64, don't you?

Can you tell I'm almost done marking final exams?
Yeah, that should have read "C64" instead of 6502.

Virtually,

Bruce R. McFarling, Newcastle, NSW
[e-mail]


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From: [e-mail] (Paul Seyler)
Newsgroups: comp.sys.cbm
Subject: Instructions for Commodore Music Composer
Date: Thu, 04 Jul 1996 04:17:03 GMT
Organization: FAA Technical Center, Pomona, NJ
Lines: 4
Message-ID: <[e-mail]>
NNTP-Posting-Host: 155.178.253.80
X-Newsreader: Forte Free Agent 1.0.82

Can anyone tell me how to enter music and save to disk?
I bought the cartridge used and it did'nt have instructions.


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isd4.tafensw.edu.au!mwalters
From: [e-mail]
Newsgroups: comp.sys.cbm
Subject: Apple LaserWriter IINT and GEOS
Message-ID: <[e-mail]>
Date: 4 Jul 96 11:24:00 +1000
Organization: TAFE NSW Network
Lines: 26

I'm attempting to hook up an Apple LaserWriter IINT to a C64 via an RS232
interface to use with GEOS V2. So far it's been quite unsuccessful. Has
anybody had success with a LW IINT plus GEOS?

The RS232 interface provides the standard 9V+- and uses two RS232 line Dr=
iver
and Receiver chips. Works fine with a modem.
The IINT receives at 9600 baud Xmodem protocol, has full Postscript
implementation and is compatible with the earlier Apple LaserWriter Plus.
The GEOS LW drivers are the ones supplied with V2- GeoLaser, and GeoPubLa=
ser.
I've also tried Jim Collette's preprocessors.

Using an RS232 tester, it appears that the data is being sent to the prin=
ter,
but the printer's "Processing" LED doesn't indicate anything is being don=
e, and=20
nothing prints.
I've tried different 64s in case a CIA is the trouble, tried inverting th=
e
output of the interface, to no avail.

Is a LW IINT specific driver needed for GEOS due to some unforseen
compatability problem? Or should I give up and just hunt around for an or=
iginal
Apple LaserWriter? The IINT has no centronics interface so I cannot use a
parallel cable, just AppleTalk (hah!) or 9600baud RS232.


-------------------------------------------------------------------------=
-------         =20
"The only certainty is death, yet we live as though we were immortal"-Unk=
nown.
[e-mail]
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From: Radioactive Warrior <[e-mail]>
Newsgroups: comp.sys.cbm
Subject: More I/O questions... This time, $DD00.
Date: Thu, 04 Jul 1996 01:26:23 +0000
Organization: noorgan
Lines: 23
Message-ID: <[e-mail]>
Reply-To: noname
NNTP-Posting-Host: user-168-121-176-117.dialup.mindspring.com
Mime-Version: 1.0
Content-Type: text/plain; charset=3Dus-ascii
Content-Transfer-Encoding: 7bit
X-Mailer: Mozilla 2.02 (Macintosh; U; PPC)

I am slowly learning the CIA chip and all it's tricks but I am stuck
at the following routine that is used in many fast loader programs to
transfer data from the disk drive rappidly.  This routine was
sandwiched in between a timing routine an a store byte/loop if not
done routine-

         LDA #$00
         LDX #$04
         STA $DD00
[loop]   LSR
         LSR
         EOR $DD00
         DEX
         BNE [loop]

I guess it's the "EOR" instruction that I don't understand...  Anyway
I do see it sending two bits at once and looping four times to gather
a byte in .AR but wouldn't the EOR invert the bits?  Well, if you know
what I am talking about please clue me in as to any other techniques
used to transfer data rapidly between a 1541 (stock...)

Thanks,
Radioactive Warrior
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From: Phil Porth <[e-mail]>
Newsgroups: comp.sys.cbm
Subject: Re: C64 archivers
Date: Wed, 3 Jul 1996 23:38:39 -0600
Organization: Calgary Free-Net
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Message-ID: <[e-mail]=
y.ab.ca>
References: <4r671a$[e-mail]>
NNTP-Posting-Host: [e-mail]
Mime-Version: 1.0
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To: Jari Karppinen <[e-mail]>
In-Reply-To: <4r671a$[e-mail]>

On 30 Jun 1996, Jari Karppinen wrote:

> them were packed with c64 archives unknown to me...
>
> can anyone tell me how to unpack files with extension .SFX ?
> It is supposed to be somekind of self extracting archive, right --- but
> how do I get it to extract itself?
Load and Run,with ,8 if it won't run it wasn't downloaded correctly. Some
Lynx programs won't recognize .sfx filetypes as being Binary files.
>
> Also there were some LHA archives, which contained files with names
> like: 1!turbo, 2!turbo etc.
If they are 1!turbo.lha then somone has played around with them as 1!, 2!
etc. are 64 zipped files and shouldn't be lh'arced download the zip.sda
prg from any 64/128 FTP site, or most bulletin boards. There should be "4=
"
files which when unzipped will create a whole 1541 disk side.anyway....?
Maybe somebody just renamed the files with the .lha extension without
really converting them.
Hope this helps

Phil Porth (aka Phone Man)

From the land of the frozen North, Calgary Alberta Canada
Home of the Calgary Stampede
and Calgary Commodore Users Group


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From: Phil Porth <[e-mail]>
Newsgroups: comp.sys.cbm
Subject: Re: How to connect to internet with a C64?
Date: Thu, 4 Jul 1996 00:12:23 -0600
Organization: Calgary Free-Net
Lines: 40
Message-ID: <[e-mail]=
y.ab.ca>
References: <[e-mail]>
NNTP-Posting-Host: [e-mail]
Mime-Version: 1.0
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To: daniele righini <[e-mail]>
In-Reply-To: <[e-mail]>

On Sun, 30 Jun 1996, daniele righini wrote:

> Anyone can say me how is possible to connect a C64 or C128 to inter-
> net for various services like FTP, E-MAIL, NEWSGROUPS and browsing
> WWW or GOPHER sites.
> What I need: programs, hardware etc.
> Where is possible to find programs ? (in case, also sites where all
> these programs are downloadly).
For the 64 or 128 the first thing you need is an internet provider willin=
g
to give you a Dos Shell access account, NOT Graphics (PPP or SLIP)
With the Dos Shell account you can use programs provided by the company,
they are called Lynx and Pine. These, when properly configured will allow
you to access Newsgroups, E-Mail WWW and FTP access. The Newsgroups are
the best place to correspond with "experts" in the Commodore community.


On the 64/128 you can usually get by with a C=3D1670 1200 baud modem, but
with a Swiftlink rs232 adaptor you can run any modem up to 38 k baud.
For the 64 a good term program is Novaterm 9.5 downloadable from many FTP
sites. Try the url ftp://ftp.ccnga.uwaterloo.ca/pub/cbm
For the 128 a good term program (in 80 columns) is Desterm V2.0 also at
the same FTP site. Both of these programs have VT102 emulation which  you
will need to access the Dos Shell account.

> We need to contact other hardware experts for ideas and information
> exchange.

Hope this helps your group. Don't be surpised if most of the people on
here are in the older age bracket. [;) Most kids still think that faster
is better while us "older users" are still trying to see what we can wrin=
g
out of our old machines. I still haven't found anything that I "NEED" to
do that I can't do with my 128.

Phil Porth (aka Phone Man)

From the land of the frozen North, Calgary Alberta Canada
Home of the Calgary Stampede
and Calgary Commodore Users Group


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Newsgroups: comp.sys.cbm
X-Comment-To: Dan Deel
From: Pontus Berg <[e-mail]>
Date: Wed, 03 Jul 96 00:11:06 +0200
Subject: c64/c128 emu
Message-ID: <[e-mail]>
References: <[e-mail]>
Organization: BoArDgasm, Farsta, Sweden
X-FTN-AREA: CANIT_COMP_SYS_CBM
X-FTN-MSGID: 2:201/411.71 31da1d0a
X-FTN-REPLY: s2.GANet.NET 6ea9ea59
X-FTN-CHRS: IBMPC 2
X-FTN-Tearline: Spot 1.3a #676
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Lines: 16

In a message of 30 Jun 96 Dan Deel wrote to All:

 DD> Could someone tell me where I can get a good C64/C128 emu for
 DD> Windows/Windows95?

A great question ... in Comp.EMULATORS.CBM! (The answer is PC64 2.02 but =
any
followup to that one is for thementioned group only - here we go for the =
real
thing!)

)=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D(
)  o/    [e-mail]  Fido: 2:201/411.71         (
) (#        HTTP://WWW.Canit.Se/ANet/p71.html              (
)=3D/7=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D(

... MicroSoft, as good as AIDS!
    (Pontus)
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Newsgroups: comp.sys.cbm
X-Comment-To: Yogi
From: Pontus Berg <[e-mail]>
Date: Wed, 03 Jul 96 00:16:08 +0200
Subject: Pirates Codes?
Message-ID: <[e-mail]>
References: <[e-mail]>
Organization: BoArDgasm, Farsta, Sweden
X-FTN-AREA: CANIT_COMP_SYS_CBM
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In a message of 01 Jul 96 Yogi wrote to All:

 Y> Besides, no one
 Y> reads emulator newsgroups except people who write the emulators.

So if noone here answer you, will you ask in Comp.sys.Atari (whatever) an=
d
follow to "Alt.binaries.picuters.nude.celebreties" (or whatever it's call=
ed)
untill you find someone not getting pissed off?

Different newsgroups are for different subjects. It's either OK or OT (fo=
r OFF
topic), which means you may and may not aksk the question in that newsgro=
up!

)=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D(
)  o/    [e-mail]  Fido: 2:201/411.71         (
) (#        HTTP://WWW.Canit.Se/ANet/p71.html              (
)=3D/7=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D(

... Marx got ONE thing  -  Religion is an opium for the people
    (Pontus Berg)
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srv1.freenet.calgary.ab.ca!pdporth
From: Phil Porth <[e-mail]>
Newsgroups: comp.sys.cbm,alt.fun.with.steve
Subject: Re: Name the most common post to comp.sys.cbm
Date: Thu, 4 Jul 1996 00:41:07 -0600
Organization: Calgary Free-Net
Lines: 13
Message-ID: <[e-mail]=
y.ab.ca>
References: <4r0962$[e-mail]> <[e-mail]=
>
NNTP-Posting-Host: [e-mail]
Mime-Version: 1.0
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To: Steve De Rose <[e-mail]>
In-Reply-To: <[e-mail]>
Xref: pravda.aa.msen.com comp.sys.cbm:57391 alt.fun.with.steve:585

On Mon, 1 Jul 1996, Steve De Rose wrote:

>   I am amazed that no one has suggested =3D
>   41) How can I {swive (look it up)} my JiffyDOS?   !=3DD>
                   ^^^^^ Not in my Funk and Wagnalls

Phil Porth (aka Phone Man)

From the land of the frozen North, Calgary Alberta Canada
Home of the Calgary Stampede
and Calgary Commodore Users Group


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From: Phil Porth <[e-mail]>
Newsgroups: comp.sys.cbm
Subject: Re: SuperCPU-64 status?
Date: Thu, 4 Jul 1996 01:00:00 -0600
Organization: Calgary Free-Net
Lines: 13
Message-ID: <[e-mail]=
y.ab.ca>
References: <[e-mail]> <31CF00A7.64A5@softd=
isk.com> <4raam5$[e-mail]>
NNTP-Posting-Host: [e-mail]
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To: Rich Will Powers <[e-mail]>
In-Reply-To: <4raam5$[e-mail]>

On 2 Jul 1996, Rich Will Powers wrote:

> Ok, I'm curious.  What is SuperCPU-64?
>
the 5 cent explanation ....A plug in 20 meghz. processor for the 64

Phil Porth (aka Phone Man)

From the land of the frozen North, Calgary Alberta Canada
Home of the Calgary Stampede
and Calgary Commodore Users Group


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From: [e-mail] (Andre Fachat)
Newsgroups: comp.sys.cbm
Subject: Re: Multithreading OS for the C64, Erratum
Date: 4 Jul 1996 07:18:15 GMT
Organization: University of Technology Chemnitz, FRG
Lines: 16
Message-ID: <4rfr7n$[e-mail]>
References: <4q3u1i$[e-mail]> <[e-mail].=
net> <[e-mail]> <4rcqt2$[e-mail]=
le.edu.au> <4re6d3$[e-mail]> <4rfejf$[e-mail]=
castle.edu.au>
NNTP-Posting-Host: mclane.physik.tu-chemnitz.de
X-Newsreader: TIN [version 1.2 PL2]

Bruce R. McFarling ([e-mail]) wrote:
: [e-mail] (Andre Fachat) wrote:
: >You mean C64, don't you?

: Can you tell I'm almost done marking final exams?
: Yeah, that should have read "C64" instead of 6502.
Well at least someone gets my posts.=20
My articles seem to magically disappear from our news server - after a
few hours they're gone. How many posts on this subject did you get?

Andre
--
Andre Fachat, Tel:++49-371-531-3551|"I do not feel obliged to believe tha=
t the
Stadlerstr 17, 09126 Chemnitz, FRG | same God who has endowed us with sen=
se,
[e-mail]     | reason, and intellect has intended u=
s to
http://www.tu-chemnitz.de/~fachat  | forego their use" -- Galileo Galilei
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uk
From: Jason <[e-mail]>
Newsgroups: comp.sys.cbm
Subject: Re: What or who is Visacorp?
Date: Wed, 3 Jul 96 23:00:48 GMT
Organization: Cosine Systems
Lines: 27
Message-ID: <[e-mail]>
References: <4reekv$[e-mail]>
X-NNTP-Posting-Host: gate.demon.co.uk
X-Newsreader: TIN [AMIGA 1.3 950726BETA PL0]
X-Mail2News-Path: relay-1.mail.demon.net!gate.demon.co.uk

Paul Allen Panks ([e-mail]) wrote:
: What is Visacorp, and what is AT?Does it tie in with the Commodore=20
: community? I've been out of touch with the commodore community for abou=
t=20
: half a year now until just recently, so I might have missed something b=
ig=20
: inbetween.

Viscorp are a nice bunch of people who like Amigas and have the rights to
sell 'em.  The management of the company is mostly made up of ex C=3D
staff (mainly from CDTV).  The company makes set top boxes (for decoding
cable and so on) and I believe (but may be wrong in saying) that they
were tied in with Escom when C=3D was brought out to do the very same.

AT is Amiga Technologies.  When Escom took over C=3D they split what they
had.  The C=3D label became a PC distributor for Escom's crap machines an=
d
Amiga Tech was founded to sell the Amiga.

One thing I missed is who owns the old 8bit C=3D architecture now?

Jason  =3D-)
     ____________________________________________________________________=
___
TMR /     /     /     /  /     /     /                                   =
  /\
   /  /__/  /  /  /__/  /  /  /  /__/    Email: [e-mail]   =
 / /
  /  /\_/  /  /__   /  /  /  /  __//          Cosine Homepage:           =
/ /
 /  /__/  /  /  /  /  /  /  /  /  / members.tripocom/~tmr/cosine.html /=
 /
/_____/_____/_____/___/__/_____/_____________________________________/ =
/
\_____\_____\_____\__\__\__\_____\_____________________________________\/
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From: [e-mail] (Andre Fachat)
Newsgroups: comp.sys.cbm,comp.emulators.cbm,comp.sys.apple2,comp.sys.atar=
i.8bit
Subject: Re: Multithreading OS for the C64
Followup-To: comp.sys.cbm,comp.emulators.cbm,comp.sys.apple2,comp.sys.ata=
ri.8bit
Date: 4 Jul 1996 07:30:58 GMT
Organization: University of Technology Chemnitz, FRG
Lines: 62
Message-ID: <4rfrvi$[e-mail]>
References: <4q3u1i$[e-mail]> <[e-mail].=
net> <4rba6u$[e-mail]> <4rd7o2$[e-mail]>
NNTP-Posting-Host: mclane.physik.tu-chemnitz.de
X-Newsreader: TIN [version 1.2 PL2]
Xref: pravda.aa.msen.com comp.sys.cbm:57395 comp.emulators.cbm:12274 comp=
.sys.apple2:105159 comp.sys.atari.8bit:38453

[Hi, I found out what was removing the messages: a cancelbot from=20
alt.comp.hardware.homebuilt! Grrr! So I removed it from the Followup-To-l=
ine
and the Newsgroups line and try to summarize my last posts. Please=20
ignore if you have already read my last posts, but please remove
alt.comp.hardware.homebuilt from the Newsgroups and Followup-To line
when replying to the other message. Sorry for the inconvenience. Andre]

--------------------snip-----------------
:       Notice that normally the 6502 address space is full
: with additional memory (if available) banked in by an external
: memory management arrangement.  So if the 6502 *had* 'boundary
: errors' it would be pointless -- I believe the Andre's original
: 6502 box had memory banking on 4K boundaries (is that right?)
Yes you are right. The upper 4 address bits were taken as index
into 16 registers each 8 bit wide. So I had 16 chunks of memory,
each 4kByte in size.
These could then be mapped to any of 256 chunks within the=20
extended up to 1MByte memory.
=20
--------------------snip-----------------
In my original design, the memory pages from other processes just couldn'=
t
be accessed, as they were not mapped in. (As I explained in another
post). A process with 8kByte RAM just had access to 8 kByte RAM
and the rest of the address space would be mapped into some read-only
regions (well, I used the kernel image...)
So that the process can just change it's own RAM.

That's even a way to implement paging, i.e. put a process out on disk=20
if memory is short. Only one thing, as you mentioned, has to be taken
care of: The 6502 cannot detect memory faults, so that _all_ memory pages
belonging to the process must be mapped and accessible when it is run.
(Even if there were some hardware mechanism to detect the fault,
there is no way to restore the original register values as before the
trapped memory access - which is essential to correctly re-execute
the offending opcode after the page has been loaded.
The capability to restore the register values was one of the few
improvements of the Motorola 68010 CPU above the 68000.)

--------------------snip-----------------

Well, I'm using the timer interrupt. But then I use the IRQ timer.
A disadvantage is, that 'nasty' programs can take full control over
the machine. An advantage is that the system itself cannot be=20
interrupted when doing critical routines. Well, that could have been
taken care of with a flag (to immediately return from NMI) but
I thought it was easier this way.

And as I wanted to run close-to-hardware processes on the machine, I
wanted a process to be able to protect itself from task switching.
(for timing critical hardware handling)
Which is obviously easier when just doing a SEI instead of=20
calling some StopMultiTasking or RestartMultiTasking (as the Amiga does)
to access some kernel internal flag - which is not available in the=20
process memory.

--------------------snip-----------------

--
Andre Fachat, Tel:++49-371-531-3551|"I do not feel obliged to believe tha=
t the
Stadlerstr 17, 09126 Chemnitz, FRG | same God who has endowed us with sen=
se,
[e-mail]     | reason, and intellect has intended u=
s to
http://www.tu-chemnitz.de/~fachat  | forego their use" -- Galileo Galilei
#! rnews 1780
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ari.OZ.AU!metro!metro!seagoon.newcastle.edu.au!usenet
From: "Bruce R. McFarling" <[e-mail]>
Newsgroups: comp.sys.cbm
Subject: Re: How to connect to internet with a C64?
Date: 4 Jul 1996 08:51:00 GMT
Organization: Department of Economics, University of Newcastle
Lines: 28
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[e-mail]>
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Phil Porth <[e-mail]> wrote:

> For the 64 or 128 the first thing you need is an internet provider
> willing to give you a Dos Shell access account, NOT Graphics (PPP
> or SLIP)

Where did this weird notion that PPP or SLIP are somehow
intrinsically 'graphical' come from?  We saw this last year when
someone was saying the C64 would 'never' get a SLIP because it
didn't have the capabilities, and turns out he meant graphic
capabilities.

Is it a common practice of providers who sell PPP or SLIP
access to bundle it with a graphical browser as a front end, so
that people confuse the two?  Because Point to Point Protocol or Serial=20
Link Internet Protocol are both just about shuffing a bytestream around.=20
 A SLIP or PPP point-and-click text ftp browser would be as=20
'non-graphical' as VT-100 terminal emulation talking to a shell account.
And, BTW, would also be a hell of a good idea for an alpha for=20
the graphical WWW browsers that different people are developing. 8-)#


Virtually,

Bruce R. McFarling, Newcastle, NSW
[e-mail]


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.gti.net!c128user
From: "Glenn P.," <[e-mail]>
Newsgroups: comp.sys.cbm
Subject: Re: Implementing a TIME command in adventure games?
Date: Thu, 4 Jul 1996 05:13:17 -0400
Organization: GTI -- GlobalNet Telecom Incorporated. For information call=
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Contents: Reply To Usenet Post.
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On 01-Jul-1996, Paul Allen Panks wrote:

> What is the best way of going about doing a TIME function in an adventu=
re=20
> game, one that will help determine weather and how the passage of time=20
> affects the player...?

"Time" in adventure games is measured in *turns*, nothing more. Just set =
a
counter, T=3DT+1, at the start of your main command input loop, and branc=
h to
the appropriate subroutine when the appropriate number of turns has elaps=
ed.

--_____
 {~._.~}       "There are a hundred ways in which a boy can injure -- if =
not
 _( Y )_  not indeed kill -- himself. The more advennturous he is and the
(:_~*~_:) greater his initiative, the more ways he will find. If you prot=
ect
 (_)-(_)  him from each of the hundred, he is sure to find the hundred-an=
d-
=3D=3D=3D=3D=3D=3D=3D=3D=3D first. Though most men can look back on their=
 boyhood and tremble
=3D=3D=3D=3D=3D=3D=3D=3D=3D at the narrowness of some of their escapes, m=
ost boys do in fact
  W.T.P.  survive, more or less intact, and the wise father is the trusti=
ng
=3D=3D=3D=3D=3D=3D=3D=3D=3D father."
                                       =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
:: --=3D Glenn P. =3D-- ::                 --"The Enchanted Places", Chap=
ter 21,
:: [e-mail] ::                    By: Christopher Robin Milne.