[Coco] DELPHIterm Coco3 terminal program source

[RETRO Innovations]

On 7/10/2018 10:08 PM, Rick Adams wrote:
> At the last CocoFEST! Henry Rietveld helped me recover the source to 
> my terminal program from an old floppy.  It was the second attempt; 
> the files we read from the disk at the previous CocoFEST! turned out 
> to be corrupt.  This time our luck was better.
>
> In this particular case, I don't mind if people paw through my source 
> code for historical or educational purposes.  The assembler source is 
> available at:
>
> http://rickadams.org/downloads/dterm.zip
>
> I've been able to build it with lwasm; not having a RS232 pack, a 
> modem, or even a POTS phone line to test with, I have no idea if it 
> still works.
>
> There are some keyboard and disk IO routines people might find 
> interesting and/or useful.  They are complicated enough (plus not 
> coded in my coding style) that I suspect they were donated by Dale 
> Lear and/or possibly Marty Goodman.
>
> An intriguing bit of trivia: at one point you will see two NOPs 
> commented out right before the INCL of the disk IO code.  Those were 
> used to alter the starting address of the disk IO routines to avoid an 
> obscure and little-understood (by me, at least) bug in which disk IO 
> would become unreliable if a certain key disk routine started on the 
> "wrong" multiple of bytes in memory.  This was the cause of the BLOB 
> (Boot Load Order Bug) known to those in the OS9 world back in the day.
>
>
>
I am sure someone can set you up with the RS232 Pak, if you are interested.

Jim


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