Table of Contents
unmak explanations and plans
2022-10-30
I didn't get to use the (third) 95LX that much this week, though I did read a few more chapters of a story. Right now my modern mobile device shut down due to a discharged battery (without warning) so I might as well spend some time writing on the 95LX again.
Friday (the day before yesterday) I started to work on some tools to disassemble and re-assemble programs. For now I have been working on Public Domain ZModem (PDZM) version 1.26 which is, as the name suggests, released into the public domain but does not ship with sources. Another case of "free software without sources" that I may want to work on later is the assembler and linker included with the free software release of MS-DOS version 2.
Rest In Pieces, 95LX
2022-10-23
Today I found that the first 95LX's screen had an error, in which the last line of the screen did not display correctly.
95LX sending at 57600 baud, line history optimisations, third 95LX
2022-10-16
Today during the file transfer between the HP 95LX (running PD ZModem version 1.26) and the Linux box (running Debian's sz/rz) I tried out sending from the 95LX at 57600 baud. I used the command line zm -88 -c1 -b57600 -h -d sz *.com. It worked, although the resulting Bytes per second rate was below 2000 (up from less than 1000 for receiving with 9600 baud), so not as much of a speed up as one could hope. But I am happy that it works at all, and sending multiple files using a single command also works very well. I did notice that the labels within the PDZM window do not seem to be readable; there's a bunch of numbers but no visible labels that indicate what those numbers are. I seem to recall from using PDZM on the server and the DOS box that there are labels there, and the space is certainly enough to hold such labels.
Request For Comments - please reply to this post!
2022-09-29
RFC! I am requesting all readers of this post to comment on here to let me gauge interest in this blog. Whether you're reading this today or at any point in the future: Make a noise! If this blog no longer exists or you wish to do so, I'd also like to encourage you to write about the pushbx blog elsewhere. If you have any particular favourite topics or posts I'd also be interested in learning about those.
95LX hang, PDZM, Zip, lDebug line history comments
2022-10-11
The other day I managed to hang the 95LX again, to the point that Ctrl-Alt-Del did not work. This time I used Shift-Ctrl-On to reset the system. This reboots and queries whether to re-initialise the RAM disk. I chose "No". I found that while the disk contents and settings where preserved, the current date and time were not. (Supposedly this way of resetting may damage the RAM disk contents even if you reply not to reset the disk memory. So perhaps don't repeat the experiment.)
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