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He wrote that he had implemented the FPS option, because some lower-spec systems had problems to achieve the power for producing a framerate of 60 FPS for the frontpanel. I contacted Udo Munk via email about this topic and he already knew it for the Cromemco Z1: ~/z80pack-1.36/cromemcosim/conf/systemconfĪfter that change all 3 emulators with graphical frontend did startup and give output on the terminal

for the Altair: ~/z80pack-1.36/altairsim/conf/systemconf

for the IMSAI 8080: ~/z80pack-1.36/imsaisim/conf/systemconf So my gut instinct did tell me thats to much and the NanoPi has to much work with the frontpanel than writing to the terminal. While taking a look at htop the NanoPi A64 (where my armbian buster Desktop does run) the cpu-utilization is near 90% There in nf is a line where the FPS-rate of the frontpanel as default is configured to 60 FPS (Frames per second). Today I did the same compile-session on a PC with Ubuntu MATE 20.04LTS and it did work in the first tryĪt first I got no idea what wasnt working.but then I discovered that - when moving the graphical frontpanel - the terminal-output was written VERY SLOWLY to the terminal-screen *Aha*īecause the garphical frontpanel seem to work perfectly (and did also compile very well) I searched inside the directorys of imsaisim and found in the "conf"-directory the file nf I did get the graphical frontend *yeah* - but after POWERON/RUN the computer I didnt get any terminal-output I did follow the instructions - which I collect and wrote for me - see attached to this message.īut yesterdy I only got limited success (after many "bad" compiles with missing dependencies) in starting the IMSAI 8080 emulation. Yesterday I did try to compile/start my favourite IMSAI 8080. Udo Munk did create the software z80pack (last version from 2017 v1.36 at  )Īgainst the text based cpmsim emulation the other features a graphical frontpanel with "blinken lights" If you know the movie "Wargames" then you may know the computer of "David Lightman" a IMSAI 8080