HP41CX - Naive' question - "Current File"

[Sylvain Cote]

(12-17-2022 01:14 PM)rprosperi Wrote:  Thanks J-F, I certainly did not recall this particular warning's effects, but it may be because of this effect that I recalled some functions can leave it undefined??
Was this bug fixed in the 1C version included in the CX, or did they simply add the warning into the User Manual (no longer requiring an addendum)?

Easy to test.

Validate that XM is empty

Code:

EMDIR         → "DIR EMPTY" 
              → 124.0000

Create a bunch of text files in XM

Code:

10
"ABC"
CRFLAS
"DEF"
CRFLAS
"XYZ"
CRFLAS

Validate that XM is not empty

Code:

EMDIR         → "ABC     A010"
              → "DEF     A010"
              → "XYZ     A010"
              → 88.0000

Select a XM file and add data to it

Code:

0
"DEF"
SEEKPTA
"AAAA"
APPREC

Delete a XM file and append a record without a XM selected file

Code:

"DEF"
PURFL
"BBBB"
APPREC        → "FL NOT FOUND"

Using a 41CV with XF 1B

Code:

EMDIR         → "DIR EMPTY"
              → 124.0000

Using a 41CX with XF 2D

Code:

EMDIR         → "ABC     A010"
              → "XYZ     A010"
              → 100.0000

Edit:

(12-17-2022 03:15 PM)J-F Garnier Wrote:  I believe (but that I don't really remember) that it have been fixed in the revision 1C of the module for the 41C/CV, and so in the 2D revision of the 41CX X-F too.

Unfortunately, I am not able to test the 1C, all my XFM modules are 1B (~10 modules).
Thank you Jean-François for reminding us of this bug and also why, as a rule, I was always using one of the SEEK function before using a XM data/text file.