This is just a short note to tell that I have just uploaded the latest version of QPI for the HP-42S at the following URL:
http://w1.322.telia.com/~u32220482/qpi42s.html
Best regards,
Erik Ehrling (Sweden)
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QPI for the HP-42S
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Post: #3
09-01-2003, 03:58 AM
 Where did you get the font you used for the program listing? Regards, Juergen ▼
Post: #4
09-02-2003, 01:54 AM
Hi Juergen! The listing is just made up of a series of screen-shots from Emu42 (so in a sense the underlying font is the real HP-42S font, although it is not made using a font per se), however if anyone could recommend a good program to construct a font from bitmaps it would not be much work to convert it into a real font.
Best regards!
Post: #5
09-02-2003, 04:48 PM
Look in here for some nice fonts produced by Luiz:
Post: #6
09-02-2003, 02:56 AM
Lines 381 and 383 should not be there; they cannot be correct. ▼
Post: #7
09-02-2003, 01:37 PM
Hi Werner! Certainly the lines should be there! The lines 2-12 at the start of the program stores the contents of the stack (and all registers). The corresponding lines 376-391 at the end of the program restores the stack (and all registers). This way program encapsulation is achieved on the HP-42S! Further, this allows you to run QPI in the middle of a calculation and then continue the calculation after QPI has run!
Best regards, ▼
Post: #8
09-02-2003, 08:04 PM
No, Werner is right, I've noticed this too. The lines 381 and 383 are too much. Consider: If you do
RCL "T_QPI" you will restore the saved T register contents directly to T. But if you now execute
RCL "Z_QPI" the stack is lifted and the contents of T are lost. Instead you should just do
RCL "T_QPI" as Werner suggests, and the entire stack will be restored. Cheers, Victor ▼
Post: #9
09-03-2003, 02:10 PM
Oh yes! The lines are redundant (even though the program works perfectly with the lines in place as well...). Thanks!
Regards, |