HP 41 Catalog implementation

[Siegfried]

(05-03-2021 01:17 AM)rprosperi Wrote:  The CCD ROM (from 1985) added this feature while in CAT-2:

-In normal mode, pressing [XEQ] would execute the currently highlighted command/function

-In Program mode (yes, CAT-2 works in PRGM mode) pressing [XEQ] will insert the currently highlighted command into the program you are editing, as the next instruction

I am amazed that a ROM could change the CATALOG behaviour like that.
Another reason to get one...

(05-03-2021 01:17 AM)rprosperi Wrote:  Its easy to look back on an old, mature design and wonder why the initial developers didn't see this or add that, but the magic hindsight of 20/20 just wasn't available. Remember that the core 41 OS was basically done in '79 and even the CX features were added as mostly external ROM commands; it never really evolved very much once completed. The most interesting OS enhancements came from 3rd parties, like this one.

Of course. I assumed as much.