[comp.sys.atari.st] PC-Speed

l86@nikhefh.hep.nl (Hugo Burm) (07/12/89)

I tested PC-Speed at a local Atari dealer. It works! And fast! All the 
MS-DOS software I tested worked fine. Some of the speed indices 
returned unbelievable numbers. It certainly is faster than the IBM PS2
model 30 I sometimes have to use. If you don't know what PC-Speed is,
here is some info from the German magazines:

PC-Speed is an MS-DOS emulator. It comes as a little PCB with a 
V30 (that is a faster, Japanese version of the 8086), two PAL's, and 
four TTL's. It must be soldered piggy-back on the 68000.

It is faster than PC-Ditto II (speed indices don't tell you everything).
PC-Ditto II has a special chip which converts some of the Intel 
opcodes into Motorola opcodes. These are then executed by the 68000.
PC-Speed stops the 68000, takes the buss, and executes the instructions.

It emulates CGA and Hercules. (the latter with some horizontal
scrolling). The magazines tested some major MS-DOS software, it
all ran immediately. They had some problems with copy-protected games
(as expected) and non-Atari hard disk drivers (they are working on the
latter).

I think it is expensive (about $320). But I am sure that many people
have been waiting for this a very long time. In Europe, it is 
distributed by Maxon. 

mikes@pedsga.UUCP (Mike Shulman) (07/13/89)

In article <221@nikhefh.hep.nl> l86@nikhefh.hep.nl (Hugo Burm) writes:
  
  
>I tested PC-Speed at a local Atari dealer. It works! And fast! All the 
[....]
>It emulates CGA and Hercules. (the latter with some horizontal
>scrolling). The magazines tested some major MS-DOS software, it
>all ran immediately. They had some problems with copy-protected games
                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>(as expected) and non-Atari hard disk drivers (they are working on the
 ^^^^^^^^^^^^^
>latter).

Why is it expected that the emulator should have problems with
copy-protected games? I would think that if you can read an IBM
disk correctly, the program should run... By the way, can you
hook up a 5 1/4 drive to PC-Speed?

			 Mike
  

-- 
----------------------------------------------------------------------------
Mike Shulman                         <Insert your favorite disclaimer here>
UUCP: princeton!rutgers!petsd!pedsga!mikes        
Internet: mikes%pedsga.uucp@rutgers.edu

hase@netmbx.UUCP (Hartmut Semken) (07/15/89)

In article <930@pedsga.UUCP> mikes@pedsga.UUCP (Mike Shulman,SPCSYS,7586) writes:
>In article <221@nikhefh.hep.nl> l86@nikhefh.hep.nl (Hugo Burm) writes:
>>all ran immediately. They had some problems with copy-protected games
>                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>>(as expected) and non-Atari hard disk drivers (they are working on the
> ^^^^^^^^^^^^^
>>latter).
>
>Why is it expected that the emulator should have problems with
>copy-protected games? I would think that if you can read an IBM
>disk correctly, the program should run... By the way, can you
>hook up a 5 1/4 drive to PC-Speed?

The problems are with the different floppy controller: the WD 1772
(Atari) and NEC 765 (PC) are equivalent in reading/writing standard
floppy disks (9 sectors of 512 bytes per track). They are not the same
in recognizing copy protection shemes...

Of course it is possible to connect a 5 1/4 inch drive to the ST.

The ST has a standard Shugard bus (with nonstandard connector :-).

It is easy to install a 80-Track 5.25 inch drive.
There is a problem with 40-track drives: the ST issues a step impulse
every 3 milliseconds. 40 track drives need about 6 millisaconds for a
step.

The seek time can be changed by patching the drive parameter blocks, but
the adress varies from TOS version to TOS version...

hase
-- 
Hartmut Semken, Lupsteiner Weg 67, 1000 Berlin 37 hase@netmbx.UUCP
If there is something more important than my Ego, I want it caught and shot.
Now! (Zaphod Beeblebrox)

neil@cs.hw.ac.uk (Neil Forsyth) (07/18/89)

In article <930@pedsga.UUCP> mikes@pedsga.UUCP (Mike Shulman,SPCSYS,7586)
writes:
>In article <221@nikhefh.hep.nl> l86@nikhefh.hep.nl (Hugo Burm) writes:
>>(with respect to emulators)They had some problems with copy-protected games
>>(as expected) 
>
>Why is it expected that the emulator should have problems with
>copy-protected games? I would think that if you can read an IBM
>disk correctly, the program should run...

Not so. To both machines a sector is just a sector. But if you want to go
looking between sectors or reading whole tracks you must access the floppy
disk controller yourself. The ST of course doesn't have the same FDC as the
PC and so a program gets stuck when it trys to use the non-existant
hardware itself.

The Spectre 128 Mac Emulator has the same problems. Any direct access to
Appletalk/Modem hardware and there is a freeze up.

With new hardware & software platforms coming out, most software developers
will stop doing this (we hope). Wait and see how much naughty ST software
works on TOS 1.4 or on a TT.

>----------------------------------------------------------------------------
>Mike Shulman                         <Insert your favorite disclaimer here>
>UUCP: princeton!rutgers!petsd!pedsga!mikes        
>Internet: mikes%pedsga.uucp@rutgers.edu

+-----------------------------------------------------------------------------+
! DISCLAIMER: Unless otherwise stated, the above comments are entirely my own !
!                                                                             !
! Neil Forsyth                       JANET:  neil@uk.ac.hw.cs                 !
! Dept. of Computer Science          ARPA:   neil@cs.hw.ac.uk                 !
! Heriot-Watt University             UUCP:   ..!ukc!cs.hw.ac.uk!neil          !
! Edinburgh, Scotland, UK            "spam spaM spAM sPAM SPAM, lovely SPAM"  !
+-----------------------------------------------------------------------------+

f-leoe@IFI.UIO.NO (Lars-Erik 0sterud) (07/20/89)

All my copy-protected software works on TOS 1.4
Some programs that would't work on TOS 1.2 works on TOS 1.4 (yeah !!)

  Lars-Erik 0sterud   /   Summer & Christmas:   /
   leoe@ifi.uio.no   /     f-leoe@ifi.uio.no   /
____________________/  _______________________/

SYTANG@CSUGREEN.BITNET (SHOOU-YU TANG,PHYSICS DEPT,CSU,303-491-6372) (10/03/89)

In Oct. issue of ST-World there is a detailed review with 3 photos showing
the needed steps in install it. The review seems to like it, it has Nortorn
index of 4 which is faster than the PC-Ditto II.`
=========
sytang@csugreen.ucc.colostate.edu

UK14@DKAUNI2.BITNET ("O. Steinmeier") (02/14/90)

In <90Feb9.235128est.57802@ugw.utcs.utoronto.ca> Greg Csullog
writes:

> Since that posting, I formatted drive C: with MS DOS but I could
> not get PC Speed to boot from hard disk. Was that because I reran
> HINSTALL to have the ST boot from C: as well?

Yes, that's it!
If you want TOS to boot from C:, you cannot tell PC-SPEED to boot
MS-DOS from TOS-drive C:. The PC-SPEED-software reads the MS-DOS-
system-files from DOS-drive C:, which can be set to an arbitrary
TOS-drive (e.g. D:). So all you have to do (assuming MS-DOS
boot-drive is TOS-D:) is:

1. Run PCS_INST and tell PC-Speed that you have a harddisk (do NOT
   select 'HDBOOT') and attach MS-DOS drive C: to TOS-drive D:
   (other connections as you would like to have them)
2. Run PC_SPEED and boot MS-DOS using your boot floppy-disk.
3. Try to switch to drive C:. It should work - and the contents
   should be the contents of your TOS-partition D:.
4. Format MS-DOS-drive C: using the FORMAT-command. Don't forget to
   use option /s to install the system files on your boot partition.
   FORMAT deletes the information which was stored on MS-DOS-drive C:.
   Make sure that you have copied your important files to another
   partition or disk, before you format the partition.
5. Leave MS-DOS and rerun PCS_INST. Tell PC-SPEED that you would
   like to boot MS-DOS from your harddisk (i.e. select HDBOOT).
6. Run PC_SPEED and press RETURN without inserting a boot disk.
   Your computer should boot from your harddisk.

By the way, you should NOT allow PC-SPEED to access harddisk
partitions which are smaller than 4.2 MB, because MS-DOS cannot
handle them. It could cause data loss!

Oliver

-----------------------------------------------------------
Disclaimer: Everything I wrote might be wrong, even this!
-----------------------------------------------------------
Oliver Steinmeier                     (UK14@DKAUNI2.BITNET)
Waldhornstrasse 4-8
D-7500 Karlsruhe, FRG
-----------------------------------------------------------

shipley@tron.UUCP (Bill Shipley) (06/15/90)

Are there any PC-Speed experts on the Net? I am generally very happy with it
but I have not been able to get a modem to work with the serial port. Has
anyone been able to do this? Also, I have had some problems with the Tandy
graphics mode. I am using version 1.40 of the software. 

Bill Shipley

v