[Coco] DLOAD upload program for CoCo 1/2?

[RETRO Innovations]

On 1/29/2023 5:57 PM, Allen Huffman via Coco wrote:
>> I read DLOAD was in Microsoft Basic for 6502 back in 1977. This was the version JT got a perpetual license for and sold forever. Always wondered if Commodore's weird serial 'disk drive' was hacked from DLOAD.
>
> That’s an interesting thought. I need to read through the DLOAD to understand it a bit more, and then maybe see what the protocol was on the C64s. That might very well be it. Thus, why there is no DIR — it returns the directory as if it’s a BASIC program called “$” that you load and LIST. Interesting. Very DLOAD-like!

This piques my curiosity, but I need more context on what "DLOAD-like" 
implies or means.

The LOAD/SAVE/OPEN/CLOSE/PRINT/GET/INPUT commands in CBM BASIC ride atop 
a set of commands that looks more like IEEE-488 commands to me.

It's possible the rarely seen CBM BASIC 1.0 which only had cassette tape 
support might have had a LOAD that aligns with DLOAD here.

Jim