On July 6, 2016 at 6:40 PM Ralf Reköndt <[email protected]>
wrote:
Ok, has anyone a working email address for Fred Toussi?
----- Original Message -----
From: "Dilwyn Jones" <[email protected]>
To: <[email protected]>
Sent: Wednesday, July 06, 2016 7:08 PM
Subject: Re: [Ql-Users] Withdrawal of my personalSoftware
PreservationProject
>> For those of us who are unfamiliar with T87, is there some (short)
>> example document and the ASCII of the text contained?
>>
>> Graeme
> The drivers_info_t87 file supplied with it states that the sources for
> the
> printer drivers were not included on the disk for lack of space but
> were
> available on request from the author Fred Toussi. I'm not in contact
> with
> him now, but if anyone did go to the trouble of getting these from him,
> it
> might possibly help I suppose.
>
> There is some information at the end of the above file:
>
> STRUCTURE OF PRINTER DRIVERS
>
> Each printer driver file consists of tables of numbers and strings and
> a
> small amount of machine code. The supplied files vary in size. The
> Assembly Language source code for the driver files is available
> separately
> from Software87. Some of the source code files are for more than one
> printer driver. Modifying the driver files requires the use of an
> assembler to re-assemble the modified source file. Modification can be
> very simple, as in the case of changing a number representing the pitch
> of
> a daisywheel, or more complex when a printer with a completely
> different
> standard is aimed at. With many Epson compatible dot-matrix printers,
> the
> width tables for proportionally spaced characters are different from
> those
> of the Epson printers for which there is a driver. This means that when
> proportional spacing is used within a line, that line may not justify
> correctly. The width tables within the printer driver should be
> modified
> for correct justification.
>
> The source listings are in the form of _T91 or _T87 documents.
> Extensive
> comments on the structure of the printer driver files can be found in
> the
> LX800 file. Once modifications have been made, driver files must be
> |Export|ed using the |Ascii| command to make them readable by
> assemblers.
> The SINCLAIR Macro Assembler or Assembler (written by GST) can be used
> for
> assembling the printer drivers. The Macro Assembler can be purchased
> from
> QUANTA.
>
> I have a working Text 87 (thanks to Marcel for the patch program) so
> could
> export the data to help anyone prepared to look into this if we can
> find
> these sources.
>
> As it is, I’ll privately send you some Text87 files to experiment with
> along with exported ascii text to compare. I’ve not looked at it
> myself,
> but I suspect that with all the options such as proportional spacing
> etc
> etc Text 87 has to handle it might be a very complex file format.
>
> Dilwyn
>
>
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