27 Jun
2016
27 Jun
'16
11:32 p.m.
Hi
I collect vintage IBM laptops, have just joined the community, and wonder if anyone can
help with the following:
1. Can write a Teledisk image of concurrent CP/M for Displaywriter to two 8 inch floppy
disks which I can supply?
2. Can solder a cable fie me which will interface an ibm 6360 8 inch floppy to a PC. I am
unable to do this myself.
3. I have an external 5.25 floppy adapter/a inside an ibm ps/2 p70 and wonder if the
external 37 pin connector is pin compatible with the 37 pin connector of the ibm 6360 8
inch floppy drive?
I thought about connecting two out of the 3 cables from this drive to an IBM displaywriter
(supplying the correct voltages etc) and the 37 pin connector to my external 5.25
adapter/a card?
Thanks for your help.
David
28 Jun
28 Jun
1:43 a.m.
On 06/27/2016 11:32 PM, David Walton wrote:
Hi I collect vintage IBM laptops, have just joined the
community, and
wonder if anyone can help with the following:
1. Can write a Teledisk image of concurrent CP/M for Displaywriter
to two 8 inch floppy disks which I can supply?
Probably--I think I remember something about Teledisk. But you didn't
give your location. Clearly if there's an international border between
us, it's going to get complicated.
2. Can solder a cable fie me which will interface an
ibm 6360 8 inch
floppy to a PC. I am unable to do this myself.
Maybe, but see your next point.
3. I have an external 5.25 floppy adapter/a inside an
ibm ps/2 p70
and wonder if the external 37 pin connector is pin compatible with
the 37 pin connector of the ibm 6360 8 inch floppy drive?
I don't know that, but I do have the pinout for the Diskette Adapter/A.
But I don't know (and suspect it won't) if Teledisk or even Imagedisk
will work with the DAA.
I thought about connecting two out of the 3 cables
from this drive to
an IBM displaywriter (supplying the correct voltages etc) and the 37
pin connector to my external 5.25 adapter/a card?
Too bad it's a PS/2 system--a legacy whitebox PC system would be easier
to work with. PS/2 floppy drives are generally strange.
--Chuck
6:48 a.m.
On 2016-06-28 10:48 AM, Al Kossow wrote:
On 6/28/16 1:43 AM, Chuck Guzis wrote:
Nope not even close
Paul.
interface an ibm 6360 8 inch
this seems like a really bad idea. are these even remotely
compatible with a normal 50 pin Shugart interface?
floppy to a PC. I am unable to do this myself.
6:50 a.m.
On 6/28/16 6:48 AM, Paul Berger wrote:
On 2016-06-28 10:48 AM, Al Kossow wrote:
Curious, since CHM (and LCM, it think) have double-sided Displaywriters..
Has anyone gotten these images to work on real hardware.
That's probably the only choice, since AFAIK no one has an emulation
On 6/28/16 1:43 AM, Chuck Guzis wrote:
Nope not even close
Paul. interface an ibm 6360 8 inch
this seems like a really bad idea. are these even remotely
compatible with a normal 50 pin Shugart interface?
floppy to a PC. I am unable to do this myself.
8:06 p.m.
New subject: IC Identification?
Hey everyone,
I'm in the process of trying to unload a bunch of things I don't need, and I have
several sticks of old ICs that I have no need for. Most are easily identified, but this
one in particular I can't figure out, so I'm hoping someone here knows:
130018
4393409
RCA Z 806
Any help would be appreciated!
8:41 p.m.
New subject: IC Identification?
On 06/28/2016 08:06 PM, Geoff Oltmans wrote:
Hey everyone,
I'm in the process of trying to unload a bunch of things I don't
need, and I have several sticks of old ICs that I have no need for.
Most are easily identified, but this one in particular I can't figure
out, so I'm hoping someone here knows:
130018 4393409 RCA Z 806
Any help would be appreciated!
RCA, was at one time, very big in transistor arrays. I wonder if this
isn't just a house number for a CA3018.
A thought, anyway.
--Chuck
29 Jun
29 Jun
8:46 a.m.
New subject: IC Identification?
On Tue, Jun 28, 2016 at 10:41 PM, Chuck Guzis <cclist at sydex.com> wrote:
On 06/28/2016 08:06 PM, Geoff Oltmans wrote:
I guess I should have mentioned that it's in a DIP 40, the size of a Z80
processor or the like. I wonder if it's some MPU for an RCA TV? Not sure, I
do have a bunch of ICs for TV video circuits in this box of stuff.
Hey everyone,
I'm in the process of trying to unload a bunch of things I don't
need, and I have several sticks of old ICs that I have no need for.
Most are easily identified, but this one in particular I can't figure
out, so I'm hoping someone here knows:
130018 4393409 RCA Z 806
Any help would be appreciated!
RCA, was at one time, very big in transistor arrays. I wonder if this
isn't just a house number for a CA3018.
A thought, anyway.
--Chuck
9:24 a.m.
New subject: IC Identification?
On 06/29/2016 08:46 AM, Geoffrey Oltmans wrote:
I guess I should have mentioned that it's in a DIP
40, the size of a Z80
processor or the like. I wonder if it's some MPU for an RCA TV? Not sure, I
do have a bunch of ICs for TV video circuits in this box of stuff.
That seems likely--particularly in that the labeling is a house number,
not a standard commodity part. Probably has some special firmware inside.
--Chuck
10 a.m.
New subject: IC Identification?
On Jun 29, 2016, at 11:24 AM, Chuck Guzis wrote:
On 06/29/2016 08:46 AM, Geoffrey Oltmans wrote:
There was a particularly quaint part I found in the stash (or should I say a bunch of
them)... that decodes an IR receiver signal with several dedicated high/low outputs for
the different received functions (i.e. volume up/down, channels 1-20, etc). So there's
a lot of TV parts in here. :)
I guess I should have mentioned that it's in
a DIP 40, the size of a Z80
processor or the like. I wonder if it's some MPU for an RCA TV? Not sure, I
do have a bunch of ICs for TV video circuits in this box of stuff.
That seems likely--particularly in that the labeling is a house number,
not a standard commodity part. Probably has some special firmware inside.
--Chuck
28 Jun
28 Jun
6:46 a.m.
On 6/27/16 11:32 PM, David Walton wrote:
1. Can write a Teledisk image of concurrent CP/M for
Displaywriter to two 8 inch floppy disks which I can supply?
Displaywriters supported single and double-sided drives. What kind do
you have? I assume these are from the 3.5" images that have been
discussed on the CP/M usenet group. Are these images recorded as single
or double-sided? Someone there has dumped a directory, I guess I should
take a closer look at what was dumped.
9 a.m.
On 28 Jun 2016, at 11:46 PM, Al Kossow <aek at
bitsavers.org> wrote:
Displaywriters supported single and double-sided drives. What kind do you have? I assume
these are from the 3.5" images that have been discussed on the CP/M usenet group. Are
these images recorded as single
or double-sided? Someone there has dumped a directory, I guess I should
take a closer look at what was dumped.
Previously ....
http://www.classiccmp.org/pipermail/cctalk/2016-May/022226.html
I started looking at ways to extract the XIOS portion since it would have the hooks to the
IBM Displaywriter ROM, but haven't made any progress as yet.
9:06 a.m.
The thread on comp.os.cpm is "Displaywriter and CP/M 86"
-- exerpts
Both of those .TD0 files were created on a HD 3.5" Floppy (Single Sided)
with Teledisk Ver 2.15
01.IMD = 01.TD0
IMageDisk Utility 1.18 / Mar 07 2012
IMD TD 1.5 3.5 HD MFM S-step, 1 sides ADV 30/03/2005 23:48:57
DRI Disk with odd CP/M-86 format
0/0 500 kbps SD 26x128
1/0 500 kbps SD 15x256
6/0 500 kbps DD 8x1024
77 tracks(77/0), 669 sectors (225 Compressed)
21.IMD = 21.TD0
IMageDisk Utility 1.18 / Mar 07 2012
IMD TD 1.5 3.5 HD MFM S-step, 1 sides ADV 31/03/2005 22:50:32
Unknown CP/M-86 disk image
0/0 500 kbps SD 26x128
1/0 500 kbps SD 15x256
6/0 500 kbps DD 8x1024
77 tracks(77/0), 669 sectors (58 Compressed, 1 Bad)
I've conjured up a cpmtools definition for a correct directory listing of both TD0
files.
# COM8X Compupro (Viasyn) 8/16 - SSDD 8" - 1024 x 8
diskdef com8x
seclen 1024
tracks 77
sectrk 8
blocksize 2048
maxdir 128
skew 3
offset 22528
boottrk 0
end
It seems to work correctly.
Larry
--
01.RAW Directory:
-----------------
MPM SYS
BDOS MPM
CIO MPM
SUP MPM
MEM MPM
RTM MPM
XIOS MPM
SYSDAT MPM
CLOCK RSP
ECHO RSP
MPMSTAT RSP
TMP RSP
DIRECT ORY
ABORT CMD
ASM86 CMD
ATTACH CMD
CONSOLE CMD
COPYDISK CMD
DDT86 CMD
DIR CMD
DSKRESET CMD
ED CMD
ERA CMD
ERAQ CMD
GENCMD CMD
GENSYS CMD
HELP CMD HELP HLP HELP DAT HELP TEX
MPMSTAT CMD
PIP CMD
REN CMD
SDIR CMD
SET CMD
SETUP CMD
SHOW CMD
SPOOL CMD
STAT CMD
STOPSPLR CMD
SUBMIT CMD
TOD CMD
TYPE CMD
CRUN86 CMD CPU INT
21.RAW Directory:
-----------------
PIP CMD
CBAS86 CMD
CRUN86 CMD
XREF86 CMD
DEFINE BAS DEFINE INT
INVNTORY BAS
CHECK BAS CHECK INT
EVENT BAS
SELECTOR BAS SELECTOR INT SELECTOR DOC
PAYABLES BAS
SET BAS SET INT
NOUPD BAS
LIBRARY BAS
CLIENT BAS
JULIAN BAS
UPDATE BAS UPDATE INT
REPORT BAS REPORT INT
SELECT BAS SELECT INT
RCVABLES BAS
AUTOUPD BAS
UPOPTION BAS
CONVERT BAS CONVERT INT
SALES BAS
STANDARD BAS
CPU BAS CPU INT
MPFORM INT
MPSET INT
MPLOGIC INT
PLAN INT
MPPRINT INT
MPSHOW INT
MPSTAT INT
MPEXT INT
CUSTOM INT
FOO BAS FOO INT
FOO1 BAS FOO1 INT
FOO2 BAS
MPSETUP FIL
MPERROR FIL
MPHELP FIL
MPHELPA FIL
MPMENU FIL
MPSERIAL NUM
SCREENS DAT
TERMINAL DAT
TEST DAT
TEST KEY
SALES SEL
SALES SRT
INCOME TBL
INCOME LOG
DIRECT ORY
COPY COM
MERGE COM
On 6/28/16 9:00 AM, Nigel Williams wrote:
On 28 Jun 2016, at 11:46 PM, Al Kossow <aek at
bitsavers.org> wrote:
Displaywriters supported single and double-sided drives. What kind do you have? I assume
these are from the 3.5" images that have been discussed on the CP/M usenet group. Are
these images recorded as single
or double-sided? Someone there has dumped a directory, I guess I should
take a closer look at what was dumped.
Previously ....
http://www.classiccmp.org/pipermail/cctalk/2016-May/022226.html
I started looking at ways to extract the XIOS portion since it would have the hooks to
the IBM Displaywriter ROM, but haven't made any progress as yet.
6:47 a.m.
On 2016-06-28 3:32 AM, David Walton wrote:
Hi
I collect vintage IBM laptops, have just joined the community, and wonder if anyone can
help with the following:
1. Can write a Teledisk image of concurrent CP/M for Displaywriter to two 8 inch floppy
disks which I can supply?
2. Can solder a cable fie me which will interface an ibm 6360 8 inch floppy to a PC. I am
unable to do this myself.
3. I have an external 5.25 floppy adapter/a inside an ibm ps/2 p70 and wonder if the
external 37 pin connector is pin compatible with the 37 pin connector of the ibm 6360 8
inch floppy drive?
I thought about connecting two out of the 3 cables from this drive to an IBM
displaywriter (supplying the correct voltages etc) and the 37 pin connector to my external
5.25 adapter/a card?
Thanks for your help.
David
If you want to create diskettes from images to use with your
Displaywriter you would be much further ahead to obtain a 8" diskette
drive with an "industry standard" interface. The 6360 diskette unit has
a drive controller built into into it so the external connection is to
the system bus rather than to a diskette controller like the external
floppy connector you have for your PS/2 system. Even the raw drives do
not have a standard interface and are missing some of the signals that
are found on industry standard drives. The signals for controlling head
motion are different, however that could be gotten around with a little
logic, but the big problem will be the IBM drives do not have a track
zero signal. On the IBM drives, when they are initialized they do about
80 outward steps to ensure the head is at track zero. The first
generation R/W drives the 33FD or Igar made an unforgettable noise when
seeking zero on the drives like the ones in the 6360 it is less noticeable.
Paul.
3098
days inactive
3099
days old
13 comments
6 participants
participants (6)
-
aek＠bitsavers.org -
cclist＠sydex.com -
nw＠retrocomputingtasmania.com -
oltmansg＠gmail.com -
phb.hfx＠gmail.com -
walton.david＠sky.com