HP-41CX w/ XF-Module - just curious

[hth]

(07-28-2019 04:27 AM)Ángel Martin Wrote:  

(07-26-2019 06:32 PM)hth Wrote:  There is also another bug by design here. If we enter an instruction by name and have multiple ROMs with the same ID, it will execute the first one with a corresponding XROM i,j and that may be a different instruction from the one we entered (and found in the alpha search). I suspect this may be a known problem?

Well I'd argue that's not necessarily a bug but an implementation choice: what's the point of continuing the search for another ROM with the same XROM id#; just for the "excess" functions in the second instance of that ROM? I would have done the same and save a few bytes in the OS.

ÁM

Yes, by design. However, you spelled the name and if you hold down ALPHA at the end the instruction, what you spelled is even displayed (acknowledged) and when you let go of ALPHA it goes ahead and does something else!

In program mode you will see the other instruction as the program step and if you assign it to a key you sort of put it there for the future and have the chance to see it does something else (if you press and hold).

When executed directly you have no chance to see it will do anything but what you entered, there is no mercy.

I have not investigated what it would be take to fix it, but I did put it down for the future. It is not a high priority and it needs to be a rather trivial and safe fix, otherwise I will leave it as is.