31 Jan
2023
31 Jan
'23
12:04 p.m.
"DLOAD is the most obscure command in the Color
Computer and absorbs a substantial amount of space in the ROM. DLOAD is so
poorly
understood because Tandy has never made the necessary companion routine,
DSEND.
I wonder if it was originally intended (or even used) at the factory
to download a diagnostic program into the machine for final testing,
or for similar use at repair centres?
The IBM5150 has a similarly obscure facility to download a diagnostic
program through the keyboard port (this one is sort-of documented in
the BIOS sources)
-tony