Re: Software for MS-DOS 1.25

... I meant the colon character ":" of course.

Also, the program sends a character $16 and expects the sender side to
reply also with $16, only then the transmission can begin.

Regards,
Michau.

Michał Pleban wrote:
> Hello!
> 
> Not quite. The correct format is:
> 
> * Semicolon character ":"
> * Two characters encoding one byte in hex, denoting the number of bytes
> to follow. Can be ether 00 (end of transmission) or 20 (transfer 32
> bytes). So the file can be only transferred in 32-byte chunks.
> * 32 hex bytes (data)
> * One hex byte, a checksum of the 32 data bytes.
> 
> So it is similar to the Intel HEX format (code 83) except there is no
> address field, and the number of bytes per line is fixed at 32.
> 
> Anyway, I can easily write a Perl program to send a file from the PC
> side. I just need the files to send ;-)
> 
> Regards,
> Michau.
> 
> 
> 
> didier derny wrote:
>> Hi
>>
>> perhaps mos technology format... (check code 81)
>>
>> ftp://ftp.dataio.com/main/manuals/unifam/translation%20formats.pdf
>>
>> if you need to encode /decode it  I have a source code  (6502 assembler)
>>
>>
>> Le 06/10/2017 à 10:44, Michał Pleban a écrit :
>>> Hello!
>>>
>>> I have dug out my Commodore 710 with the 8088 card and booted MS-DOS
>>> 1.25 on it. It contains a program named RECV.EXE, which allows receiving
>>> files over the RS-232 connection. The program is not documented but
>>> after some debugging it turns out that it uses some simplified version
>>> of Intel HEX format to transfer the files.
>>>
>>> Now, I would like to download some software and try running it to see
>>> whether it works. But after browsing some software archives I can see
>>> that most DOS software is available for later versions of MS-DOS. Is
>>> there any place where I can find applications that would run under
>>> MS-DOS 1.25?
>>>
>>> Regards,
>>> Michau.
>>>
>>>         Message was sent through the cbm-hackers mailing list
>>
>>       Message was sent through the cbm-hackers mailing list
>>
> 
> 
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> 


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