Re: Sunday brain tickler

2017-01-09 Thread Chuck Guzis
On 01/09/2017 02:58 PM, allison wrote: > Low majik there... 8 bytes of 7 bit ascii means one free bytes > worth of bits, to do that start with an 8byte area as 64 bits and > stuff the bits. The only question is are the left justified or > right a few minutes by hand can discover that. Done

Re: Sunday brain tickler

2017-01-09 Thread allison
On 01/09/2017 12:51 PM, Chuck Guzis wrote: > On 01/09/2017 09:28 AM, Fred Cisin wrote: >> Need there BE a filename? >> >> An OS, particularly for a word processor, could have an IMPLICIT list >> of filenames on a disk of DOCUMENT1 DOCUMENT2 DOCUMENT3 > > I found this document: > >

Re: Sunday brain tickler

2017-01-09 Thread Chuck Guzis
On 01/09/2017 03:33 PM, Jules Richardson wrote: > It seems unlikely that a simple system would resort to something > like frequency analysis of characters when encoding filenames, > though, particularly given the size of the data (the overhead would > probably not make it worthwhile) - so I'm

Re: Sunday brain tickler

2017-01-09 Thread Jules Richardson
On 01/09/2017 11:51 AM, Chuck Guzis wrote: On 01/09/2017 09:28 AM, Fred Cisin wrote: Need there BE a filename? An OS, particularly for a word processor, could have an IMPLICIT list of filenames on a disk of DOCUMENT1 DOCUMENT2 DOCUMENT3 I found this document:

Re: Sunday brain tickler

2017-01-09 Thread Chuck Guzis
On 01/09/2017 09:28 AM, Fred Cisin wrote: > Need there BE a filename? > > An OS, particularly for a word processor, could have an IMPLICIT list > of filenames on a disk of DOCUMENT1 DOCUMENT2 DOCUMENT3 I found this document: http://www.dtic.mil/get-tr-doc/pdf?Location=U2=GetTRDoc.pdf=ADA199551

Re: Sunday brain tickler

2017-01-09 Thread Chuck Guzis
The web search breadth increases a bit when the term "No Problem" is substituted for "103" when looking for Lanier documents. Not much, but there are some tidbits. Such as: " Its main drawback was that it was a page-oriented program as opposed to a document-oriented program. You got only 99

Re: Sunday brain tickler

2017-01-09 Thread Fred Cisin
Need there BE a filename? An OS, particularly for a word processor, could have an IMPLICIT list of filenames on a disk of DOCUMENT1 DOCUMENT2 DOCUMENT3 in which case, the table that you have found could be little more than record keeping of which "documents" are allocated V free-space, how

Re: Sunday brain tickler

2017-01-09 Thread Adam Sampson
Chuck Guzis writes: > I can get the raw text, but how it's linked together and what file > names might is still a mystery. The Lanier 103 is apparently a rebadged AES Superplus, and one owner says: "The word processor had some strange features, such as each page had to be

Re: Sunday brain tickler

2017-01-08 Thread Chuck Guzis
On 01/08/2017 06:25 PM, allison wrote: > I haven't ground on what it may be but there are four likely > directory/catalog cases. I've certainly seen my share of various filesystems. In fact, I can laboriously reconstruct the original files, there being only 70 1200 byte blocks on the disk. I

Re: Sunday brain tickler

2017-01-08 Thread allison
On 01/08/2017 09:09 PM, Chuck Guzis wrote: > On 01/08/2017 04:42 PM, william degnan wrote: >> Inverse 8085? > I don't think so. If it helps, here's the first few lines of the > "directory": > > 000: 00 a1 7a c1 c0 00 00 > 0007: 00 00 00 00 00 00 00 80 1a 02 38 00 > 0013: a1 7a c1 c0 00 00 00

Re: Sunday brain tickler

2017-01-08 Thread Chuck Guzis
Jim, that occurred to me right off the bat, but the disk has only 35 cylinders and is single-sided. No file names in the body text. The text itself isn't proprietary, but merely an early cut of an already-published public report, so I have no problem sharing any part of the disk image. --Chuck

Re: Sunday brain tickler

2017-01-08 Thread jim stephens
I don't know the names, but the use of extents might be something going on. I highlighted the c4a3 extent. The last two columns maybe cylinder and sector number. There may be a free count going on with the next to the last two bytes 0xff85 for instance in the first stick. Since line 0x000

Re: Sunday brain tickler

2017-01-08 Thread Chuck Guzis
On 01/08/2017 04:42 PM, william degnan wrote: > Inverse 8085? I don't think so. If it helps, here's the first few lines of the "directory": 000: 00 a1 7a c1 c0 00 00 0007: 00 00 00 00 00 00 00 80 1a 02 38 00 0013: a1 7a c1 c0 00 00 00 00 1b ff 00 00 001f: 5c 25 15 1b 4c 40 00 00 ff ff 37 05

Re: Sunday brain tickler

2017-01-08 Thread william degnan
Inverse 8085? Bill Degnan twitter: billdeg vintagecomputer.net On Jan 8, 2017 7:38 PM, "Chuck Guzis" wrote: > On 01/08/2017 04:24 PM, Jules Richardson wrote: > > On 01/08/2017 10:03 AM, Chuck Guzis wrote: > >> I'm looking at a sample of what I see as a directory of sorts and >

Re: Sunday brain tickler

2017-01-08 Thread Chuck Guzis
On 01/08/2017 04:24 PM, Jules Richardson wrote: > On 01/08/2017 10:03 AM, Chuck Guzis wrote: >> I'm looking at a sample of what I see as a directory of sorts and >> am attempting to decode the file names from it. They're not >> anything as elegant as Rad50, but the encoding has escaped my weary

Re: Sunday brain tickler

2017-01-08 Thread Jules Richardson
On 01/08/2017 10:03 AM, Chuck Guzis wrote: I'm looking at a sample of what I see as a directory of sorts and am attempting to decode the file names from it. They're not anything as elegant as Rad50, but the encoding has escaped my weary brain. Hmm, do you have any clues to go on? Knowledge of

Sunday brain tickler

2017-01-08 Thread Chuck Guzis
I'm looking at a sample of what I see as a directory of sorts and am attempting to decode the file names from it. They're not anything as elegant as Rad50, but the encoding has escaped my weary brain. The system in question is a Lanier 103 word processor. Here are some samples. Can anyone come