peraino@gmuvax2.gmu.edu (Bob Peraino) (02/06/91)
POSSIBLE BUG IN HP48 MODES BROWSER
Here's what I did:
1. Archived machine to PC.
(Yes, I do this even if it's Dr. Wickes who wrote the code!)
2. Downloaded the ASC encoded modes browser. No problems.
3. Brought string to stack, and ran ASC-> No problems.
4. Stored it in the name MODES.
Here's where things get interesting. If I invoke MODES by pressing
the menu key, everything seems fine. However, if I invoke the browser
by typing out that name, and then I change the state of the clock flag,
when I press on/attn to exit the little hourglass appears and never
goes away. ON-C time. Everything's normal. I try going back into MODES by
pressing the menu key, and modify the clock flag, and it works fine.
I try again by typing out the name, and when I modify the clock flag,
it locks up again on exit.
So, I then copied the program to a new name, AA. When I start the
browser by pressing AA and modify the clock flag, it's fine. When I
type out AA and modify the clock flag, when I exit, my menu line gets
trashed (static type garbage), I get Insufficient memory error (when I
actually have 127k free), and then the machine runs REAL slow, like
someone cranked down the clock speed. ON-C time again. This appears
to straighten everything out. I try this test one more time, and
the last time, the screen flashed, blanked out, and system-halted
by itself. Me-thinks it's time to restore my machine from that
prudent backup I made.
I have a 128k card in port 0 (The hp variety)
and an EQ library card in port 1.
Any ideas?
peraino@gmuvax.gmu.edubillw@hpcvra.cv.hp.com. (William C Wickes) (02/08/91)
One of Murphy's lesser-known laws is that when you have an old, faulty
version of software, and think you have purged all copies thereof, one
will remain somewhere. Furthermore, when you post that software for
others to use, it is the old, faulty version that gets posted. @#$%@#$!@ !!!
What follows is (I hope) the correct version of the modes browser.
I apologize for the screw-up. I don't recall that the old version actually
corrupted memory, but then I also thought I had posted the correct version.
Bill Wickes
***********************
Below is the code for modes browser I demonstrated at the Philly meeting.
Executing this object creates an interactive modes display that
displays most HP-48 flag-controlled modes and their current states. The
display shows seven modes at a time, with a pointer in the leftmost
column that "selects" one mode and moves through the catalog. You
can move the selection pointer with the arrow keys, or by pressing
one of the menu keys
MATH PLOT I/O TIME DISP SYS
each of whichs jumps to a block of modes related to the key label.
Other keys are defined as follows:
[down-arrow] Moves the pointer to the next mode.
[up-arrow] Moves the pointer to the previous mode.
[left][down] Moves the pointer down one page.
[right][down] Moves the pointer to the last entry.
[left][up] Moves the pointer up one page.
[right][up] Moves the pointer to the first entry.
[ENTER] Enters the (first) flag number of the selected mode, tagged with
the mode name (visible when you exit the browser).
[+/-] Toggles the selected mode to its next state.
[right][OFF] Turns the 48 off.
[ATTN] Exits the browser.
After downloading the string to your HP 48, use ASC-> to create the executable
object.
%%HP: T(3)A(R)F(.);
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B2130E2B4"akcs.wilsonpm@hpcvbbs.UUCP (Pete M. Wilson) (02/10/91)
For reasons I'm not sure I understand, I am unable to receive this on the HP BBS without it trashing a line in the middle of the ascii listing (!). I have the pager turned on. Can this be reposted, or is there something I can do to prevent it Thanks Pete