After over a year of continuous investigations, tests, measurements, repairs and absolutely active help from the USA, our #Kneisner #M100 is now booting #turboDOS from a floppy disk.
It still has a few quirks with its front panel. But the next step will be to try to boot it from D.Gesswein's MFM emulator from a known working HD image. To see whether the WD hard disk controller and the IMS controller card are still working properly.
The whole thing is now a "once in a lifetime" project for me. What I wasn't aware of until now is that the #IMSAI8080 will be 50 years old this year.
#RetroComputing #ComputerMuseum

#M100: A Grand Design #SpiralGalaxy
#Astronomy #Picture of the Day

https://apod.nasa.gov/apod/ap240502.html

Doubling the CPU Speed of the TRS-80 Model 100 With a Mod Board - The TRS-80 Model 100 was released in 1983, featuring an 80C85 CPU that can run at ... - https://hackaday.com/2024/02/18/doubling-the-cpu-speed-of-the-trs-80-model-100-with-a-mod-board/ #retrocomputing #trs-80model100 #model100 #m100

Got it in 5. Must need more coffee! #vintagecomputing #m100 #NEC #basic

Because my bud Ben is porting it to every BASIC in sight, I spent half the night messing with ROG, my trs80 model 100 roguelike.

Last looked at in 2016.... and it's in BASIC.... made by a Past Me who was cranky about the programming rules being preached at him by CS profs.

"Don't write big projects in BASIC" turns out to be a pretty good rule, actually.

#TRS80 #M100 #ModelT #Rog #RogueLike #Model100

Subdued LCD display (dial all-the-way-up)... Culprit found: C82! At least, time and a quick repair should determine.

Mail day - my first "real" #VintageComputer is here :)

Compared to opening the #Tandy #Model100 or the #NEC #PC-8201a, the #Olivetti M10 is a dream.

I've got a bit of recapping in my future. And some memory to make. And a battery to replace :)

OK, I gave myself a deadline:
I want to have a version of m200.def to distribute by Jan 3, 2022.

This wants to be *the* master include file (& ROM entry point documentation) for Tandy 200 assembly using ASM80, ZMAC, TASM (telemark, not turbo), and ASxxxx.

It will be completely untested, as I do not (yet) have a Tandy 200. :-(

#assembly #m100 #m200#t200 #ModelT #8085 #Asm80 #ZMac #TAsm #ASX