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I've recently noticed that all of my Lisas (Lisae?) are now showing various video symptoms. At least one is a trimpot issue which should be easy to fix. Another the display over time scrunches up at the top, but is otherwise readable and playing with the trimpots doesn't help. Another goes out...

Thanks, I'll give it a shot.

So I've had this issue for a while now, the cable between my 20th anniversary Mac speaker and the main computer seems to be a large twist lock kind of cable that has many pins. After I got the TAM, I hooked it up and haven't separated the speaker base from the main computer since. When we moved...

Might be interesting to replace that FAT12 with something that supports more than 8.3, not just larger volumes - but yeah, that's going to be insanely hard and you'll have to change a lot of the underlying CP/M code, etc. as well as the GEMDOS side and certainly the apps too. FAT32 is likely...

I don't know of any, but in general, check each slot for a dual parallel port card, if installed check each card for the OCD bit - Open Cable Detect, if the cable is connected, there might be a drive there. If there is a drive there, you can try to probe reading of block 0x00ffffff - this will...

I'm not sure about the serial numbers, but the Lisa 1 mice had a very narrow button vs the newer ones that were shared with the Mac and Lisa 2's, and also a different DB9 connector hood (no screws). see the photos here...

To quote Zoidberg, "I'll take 8!"

On the Mac (and even LOS), the A-Line traps are almost fully used. You could cheat and use some of the F-Line traps that aren't used by the FPU or PMMU, or perhaps use some other mechanism if GEMDOS allows for it.

Pity, they missed an opportunity here to call that error something a lot more fun: Major Havoc [8D]

Can you modify the boot loader such that it zeros RAM before it loads the BIOS/BDOS? You should be able to get max ram from the Lisa BIOS low memory globals at 0294:   0000| 0000 0294 MAXMEM .EQU $0294 ;MAX MEMORY ADDRESS + 1 Generally the Lisa's BOOT ROM...

Thank you @fri0701 taking a look now

yeah, I vaguely remember that HD disks will not work fine because of the coercivity or whatever it's called in low density drives back from the commodore days. I used to order floppies from a bulk maker and for a while the DS/HD were cheaper than DS/DD, but they didn't work well at all in C1541s...

So did DS/HD floppies work well to hold data or did you need to switch to DS/DD?

Love that command's name! And yes, fond memories of BBEdit back when I was still on an actual mac. :)

So this is a bug with the SMF I have or possibly postgres setup with SMF, there's some visible or invisible unicode char it complains about. It only seems to happen from macos x or iOS. The only fix I've found for this, and it's lame, is to paste the text of the code into a pure text only...

Very nice! Are there many CP/M68k apps out there? I know there were a ton for the 8080/z80.

Bus error means you tried to access memory that does not exist or belong to you or the MMU hasn't mapped. It's equivalent to the unix segfault.

That's awesome! Thank you, much appreciated! :) Hope you used libdc42 to save yourself time, but if you didn't that's fine.

Good to know ZTerm works! :) Since the conversion didn't work, just hang on to the BLU images until I fix the bugs, might take a while, but you've done the hard work already. I'll try to image some of my own ProFiles and see what's needed to fix that tool. The last effort I made on that was...

On modern Mac OS X, you can probably use the brew.sh package system to install something like minicom which will work in Terminal.app or iTerm2.app if you don't mind that. Assuming your db9<-> USB cable is recognized by macos when you plug in, it should work, otherwise you'll need to...