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#zilog

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Óscar Toledo G.

The Hitachi HD64180 was an improvement over the Z80, with an 8x8 multiplication instruction, and able to address 512kb of memory. Zilog licensed it back as the Z180 and added a further address line to handle 1 mb of memory. #zilog

Óscar Toledo G.

The Zilog Z280 microprocessor. Able to address 16 megabytes of memory, and with MMU for 64k code area and 64k data area. It wasn't so popular, so it ceased manufacturing, but for some reason, Zilog sent all datasheets and manuals to oblivion. Check bitsavers. #zilog

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Wintermute_BBS

Out there, in the worrying world of today is a little #Zilog #Z80 computer with a mere 64KB of #RAM and running the #1970s CP/M operating system.

This little machine is connected to the #intertubes and it's serving a #singleuser #bulletinboardsystem for you, the worrying souls of #yesteryears to visit.

Take a break from today, connect like it's 1985 - here on RC-BOX BBS, the world's first and (currently) only #rc2014 based bulletin board system in the world!

Check out the #alttext or my #profile info for information on how to connect.

#bbs
#rc2014bbs
#rcbox

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Daniele Verducci 🧉
Progress!
I've got a basic #emulator working for my #Pat80 #homebrew #zilog #z80 #computer !
This should ease the os development as I can test the changes without having to: remove the #eeprom from the computer (without bending the pins), program it in the #TL866 programmer, place it again on the computer (aligning pins correctly), test, notice it's not working and have no idea why, start debugging with the logic probe on the #address and #data pins, swear in arcane languages... 😅

https://git.ichibi.eu/penguin86/pato-z80-home-computer/commits/branch/c-emulator
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Daniele Verducci 🧉
I'd like to resume my #zilog #z80 based #homebrew #computer project, the " #Pat80 ":
https://git.ichibi.eu/penguin86/pato-z80-home-computer/src/branch/c-emulator

When I left it, some years ago, I had no idea what I was doing.

Now, I have absolutely no idea what I am doing AND I don't remember where I left, but apparently I've written a decent enough documentation...

Anyway, apparently I decided the old python #emulator was too janky and started writing a new one in C, language i do not know and never use.

This will be fun
Ichibipato-z80-home-computerPat80 Home Computer is an attempt to develop the simplest possible Zilog Z80 based computer in 2021
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