#mz80k — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #mz80k, aggregated by home.social.
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#today visited the ARC@KU https://arcatku.org/event/arc-annual-showcase-event-2026 #retrogaming #retrocomputing exhibition with many working #Z80 #6502 #68000 etc machines, including the #BBCMicro and #Spectrum48k I had, though not the #MZ80K. Also an #Atari2600 that my brother and I had nearly 50Y ago!
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#today visited the ARC@KU https://arcatku.org/event/arc-annual-showcase-event-2026 #retrogaming #retrocomputing exhibition with many working #Z80 #6502 #68000 etc machines, including the #BBCMicro and #Spectrum48k I had, though not the #MZ80K. Also an #Atari2600 that my brother and I had nearly 50Y ago!
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#today visited the ARC@KU https://arcatku.org/event/arc-annual-showcase-event-2026 #retrogaming #retrocomputing exhibition with many working #Z80 #6502 #68000 etc machines, including the #BBCMicro and #Spectrum48k I had, though not the #MZ80K. Also an #Atari2600 that my brother and I had nearly 50Y ago!
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#today visited the ARC@KU https://arcatku.org/event/arc-annual-showcase-event-2026 #retrogaming #retrocomputing exhibition with many working #Z80 #6502 #68000 etc machines, including the #BBCMicro and #Spectrum48k I had, though not the #MZ80K. Also an #Atari2600 that my brother and I had nearly 50Y ago!
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#today visited the ARC@KU https://arcatku.org/event/arc-annual-showcase-event-2026 #retrogaming #retrocomputing exhibition with many working #Z80 #6502 #68000 etc machines, including the #BBCMicro and #Spectrum48k I had, though not the #MZ80K. Also an #Atari2600 that my brother and I had nearly 50Y ago!
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Getting there (if only I could find my soldering iron).
New blog post from me - Pico MZ-700 progress.
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Getting there (if only I could find my soldering iron).
New blog post from me - Pico MZ-700 progress.
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Getting there (if only I could find my soldering iron).
New blog post from me - Pico MZ-700 progress.
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Getting there (if only I could find my soldering iron).
New blog post from me - Pico MZ-700 progress.
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Getting there (if only I could find my soldering iron).
New blog post from me - Pico MZ-700 progress.
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My rewrite of the 8255 emulation seems to have fixed the keyboard handling weirdness and cursor blink speed issues on the #MZ700 emulation. It also seems to have sorted the odd glitch I knew I still had with #MZ80K keyboard handling. The new emulation is more efficient, so I may be able to drop the Pico clock speed another 10MHz or so ...
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My rewrite of the 8255 emulation seems to have fixed the keyboard handling weirdness and cursor blink speed issues on the #MZ700 emulation. It also seems to have sorted the odd glitch I knew I still had with #MZ80K keyboard handling. The new emulation is more efficient, so I may be able to drop the Pico clock speed another 10MHz or so ...
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My rewrite of the 8255 emulation seems to have fixed the keyboard handling weirdness and cursor blink speed issues on the #MZ700 emulation. It also seems to have sorted the odd glitch I knew I still had with #MZ80K keyboard handling. The new emulation is more efficient, so I may be able to drop the Pico clock speed another 10MHz or so ...
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My rewrite of the 8255 emulation seems to have fixed the keyboard handling weirdness and cursor blink speed issues on the #MZ700 emulation. It also seems to have sorted the odd glitch I knew I still had with #MZ80K keyboard handling. The new emulation is more efficient, so I may be able to drop the Pico clock speed another 10MHz or so ...
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My rewrite of the 8255 emulation seems to have fixed the keyboard handling weirdness and cursor blink speed issues on the #MZ700 emulation. It also seems to have sorted the odd glitch I knew I still had with #MZ80K keyboard handling. The new emulation is more efficient, so I may be able to drop the Pico clock speed another 10MHz or so ...
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I'm not able to take part in #RetroChallenge this year, but I've just spent a few minutes enjoying last year's writeup of my #Sharp #MZ80K emulator for the #RaspberryPiPico . In the weeks after the challenge it went on to emulate the #MZ80A as well. The plan for this winter is to have a bash at #MZ700 emulation. The architecture isn't hugely different from the earlier MZs, but I'll need to implement colour output as a minimum.
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I'm not able to take part in #RetroChallenge this year, but I've just spent a few minutes enjoying last year's writeup of my #Sharp #MZ80K emulator for the #RaspberryPiPico . In the weeks after the challenge it went on to emulate the #MZ80A as well. The plan for this winter is to have a bash at #MZ700 emulation. The architecture isn't hugely different from the earlier MZs, but I'll need to implement colour output as a minimum.
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I'm not able to take part in #RetroChallenge this year, but I've just spent a few minutes enjoying last year's writeup of my #Sharp #MZ80K emulator for the #RaspberryPiPico . In the weeks after the challenge it went on to emulate the #MZ80A as well. The plan for this winter is to have a bash at #MZ700 emulation. The architecture isn't hugely different from the earlier MZs, but I'll need to implement colour output as a minimum.
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I'm not able to take part in #RetroChallenge this year, but I've just spent a few minutes enjoying last year's writeup of my #Sharp #MZ80K emulator for the #RaspberryPiPico . In the weeks after the challenge it went on to emulate the #MZ80A as well. The plan for this winter is to have a bash at #MZ700 emulation. The architecture isn't hugely different from the earlier MZs, but I'll need to implement colour output as a minimum.
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I'm not able to take part in #RetroChallenge this year, but I've just spent a few minutes enjoying last year's writeup of my #Sharp #MZ80K emulator for the #RaspberryPiPico . In the weeks after the challenge it went on to emulate the #MZ80A as well. The plan for this winter is to have a bash at #MZ700 emulation. The architecture isn't hugely different from the earlier MZs, but I'll need to implement colour output as a minimum.
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One of the most repair-friendly computers of the 80s. Our #Sharp #MZ80K in the museum. But ultimately, it was also one of the dumbest computers ever launched.
#RetroComputing #ComputerMuseum -
One of the most repair-friendly computers of the 80s. Our #Sharp #MZ80K in the museum. But ultimately, it was also one of the dumbest computers ever launched.
#RetroComputing #ComputerMuseum -
One of the most repair-friendly computers of the 80s. Our #Sharp #MZ80K in the museum. But ultimately, it was also one of the dumbest computers ever launched.
#RetroComputing #ComputerMuseum -
One of the most repair-friendly computers of the 80s. Our #Sharp #MZ80K in the museum. But ultimately, it was also one of the dumbest computers ever launched.
#RetroComputing #ComputerMuseum -
One of the most repair-friendly computers of the 80s. Our #Sharp #MZ80K in the museum. But ultimately, it was also one of the dumbest computers ever launched.
#RetroComputing #ComputerMuseum -
Do you know when the next lunar umbral eclipse is?
The Pico MZ-80K running program 9 from Celestial #BASIC does!
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Do you know when the next lunar umbral eclipse is?
The Pico MZ-80K running program 9 from Celestial #BASIC does!
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Do you know when the next lunar umbral eclipse is?
The Pico MZ-80K running program 9 from Celestial #BASIC does!
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Do you know when the next lunar umbral eclipse is?
The Pico MZ-80K running program 9 from Celestial #BASIC does!
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Do you know when the next lunar umbral eclipse is?
The Pico MZ-80K running program 9 from Celestial #BASIC does!
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The first release of my Pico MZ-80A emulator has escaped!
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The first release of my Pico MZ-80A emulator has escaped!
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The first release of my Pico MZ-80A emulator has escaped!
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The first release of my Pico MZ-80A emulator has escaped!
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The first release of my Pico MZ-80A emulator has escaped!
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Look what the postie brought! I've been looking for a copy of this for years 😊
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Look what the postie brought! I've been looking for a copy of this for years 😊
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Look what the postie brought! I've been looking for a copy of this for years 😊
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Look what the postie brought! I've been looking for a copy of this for years 😊
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Look what the postie brought! I've been looking for a copy of this for years 😊
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That's better! (Sorry @rc2014 ... your wish is not granted!!)
... this reminds me of having to fix a display driver in the PAFEC DOGS CAD software when I'd ported it to the IBM 6150 (PC/RT for any Americans reading) (the RS/6000's ancestor).
On the IBM megapel display, I was getting strange corruption as it was interpreting some escape sequences incorrectly. I think IBM fixed the firmware in the end, but the workaround was never taken out of our code, "just in case". It scored me a trip to IBM in Innsbruck as that was the nearest office they had with the offending graphics display available at the time - it must've been very early 6150 days.
I've attached a picture of the cowbell IBM Innsbruck gave me for installing the workaround!
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That's better! (Sorry @rc2014 ... your wish is not granted!!)
... this reminds me of having to fix a display driver in the PAFEC DOGS CAD software when I'd ported it to the IBM 6150 (PC/RT for any Americans reading) (the RS/6000's ancestor).
On the IBM megapel display, I was getting strange corruption as it was interpreting some escape sequences incorrectly. I think IBM fixed the firmware in the end, but the workaround was never taken out of our code, "just in case". It scored me a trip to IBM in Innsbruck as that was the nearest office they had with the offending graphics display available at the time - it must've been very early 6150 days.
I've attached a picture of the cowbell IBM Innsbruck gave me for installing the workaround!
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That's better! (Sorry @rc2014 ... your wish is not granted!!)
... this reminds me of having to fix a display driver in the PAFEC DOGS CAD software when I'd ported it to the IBM 6150 (PC/RT for any Americans reading) (the RS/6000's ancestor).
On the IBM megapel display, I was getting strange corruption as it was interpreting some escape sequences incorrectly. I think IBM fixed the firmware in the end, but the workaround was never taken out of our code, "just in case". It scored me a trip to IBM in Innsbruck as that was the nearest office they had with the offending graphics display available at the time - it must've been very early 6150 days.
I've attached a picture of the cowbell IBM Innsbruck gave me for installing the workaround!
-
That's better! (Sorry @rc2014 ... your wish is not granted!!)
... this reminds me of having to fix a display driver in the PAFEC DOGS CAD software when I'd ported it to the IBM 6150 (PC/RT for any Americans reading) (the RS/6000's ancestor).
On the IBM megapel display, I was getting strange corruption as it was interpreting some escape sequences incorrectly. I think IBM fixed the firmware in the end, but the workaround was never taken out of our code, "just in case". It scored me a trip to IBM in Innsbruck as that was the nearest office they had with the offending graphics display available at the time - it must've been very early 6150 days.
I've attached a picture of the cowbell IBM Innsbruck gave me for installing the workaround!
-
That's better! (Sorry @rc2014 ... your wish is not granted!!)
... this reminds me of having to fix a display driver in the PAFEC DOGS CAD software when I'd ported it to the IBM 6150 (PC/RT for any Americans reading) (the RS/6000's ancestor).
On the IBM megapel display, I was getting strange corruption as it was interpreting some escape sequences incorrectly. I think IBM fixed the firmware in the end, but the workaround was never taken out of our code, "just in case". It scored me a trip to IBM in Innsbruck as that was the nearest office they had with the offending graphics display available at the time - it must've been very early 6150 days.
I've attached a picture of the cowbell IBM Innsbruck gave me for installing the workaround!
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Just looking at how straightforward it would be to extend the Pico MZ-80K to emulate the MZ-80A as well.
Shouldn't be too difficult, and it could potentially run CP/M.
I've a feeling I'm just about to fall down a rabbit hole that I swore I wouldn't ...
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Just looking at how straightforward it would be to extend the Pico MZ-80K to emulate the MZ-80A as well.
Shouldn't be too difficult, and it could potentially run CP/M.
I've a feeling I'm just about to fall down a rabbit hole that I swore I wouldn't ...
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Just looking at how straightforward it would be to extend the Pico MZ-80K to emulate the MZ-80A as well.
Shouldn't be too difficult, and it could potentially run CP/M.
I've a feeling I'm just about to fall down a rabbit hole that I swore I wouldn't ...
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Just looking at how straightforward it would be to extend the Pico MZ-80K to emulate the MZ-80A as well.
Shouldn't be too difficult, and it could potentially run CP/M.
I've a feeling I'm just about to fall down a rabbit hole that I swore I wouldn't ...
-
Just looking at how straightforward it would be to extend the Pico MZ-80K to emulate the MZ-80A as well.
Shouldn't be too difficult, and it could potentially run CP/M.
I've a feeling I'm just about to fall down a rabbit hole that I swore I wouldn't ...
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Newly minted - Pico #MZ80K release 1.2.4 - bugfixes and initial support for the Japanese character ROM.
Runs on a #RaspberryPi Pico mounted on a Pimoroni VGA Demo Base, #RC2014 Pi Pico VGA terminal card or on the self-contained RC2014 RP2040 VGA terminal card.
More details:
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Newly minted - Pico #MZ80K release 1.2.4 - bugfixes and initial support for the Japanese character ROM.
Runs on a #RaspberryPi Pico mounted on a Pimoroni VGA Demo Base, #RC2014 Pi Pico VGA terminal card or on the self-contained RC2014 RP2040 VGA terminal card.
More details:
-
Newly minted - Pico #MZ80K release 1.2.4 - bugfixes and initial support for the Japanese character ROM.
Runs on a #RaspberryPi Pico mounted on a Pimoroni VGA Demo Base, #RC2014 Pi Pico VGA terminal card or on the self-contained RC2014 RP2040 VGA terminal card.
More details:
-
Newly minted - Pico #MZ80K release 1.2.4 - bugfixes and initial support for the Japanese character ROM.
Runs on a #RaspberryPi Pico mounted on a Pimoroni VGA Demo Base, #RC2014 Pi Pico VGA terminal card or on the self-contained RC2014 RP2040 VGA terminal card.
More details:
-
Newly minted - Pico #MZ80K release 1.2.4 - bugfixes and initial support for the Japanese character ROM.
Runs on a #RaspberryPi Pico mounted on a Pimoroni VGA Demo Base, #RC2014 Pi Pico VGA terminal card or on the self-contained RC2014 RP2040 VGA terminal card.
More details:
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@metin Since you seem interested in graphics, #pc1211 had basically none; single line of 24? chars, until someone found a way to derail BASIC interpreter and access the first columns of pixels.
You could access pixels natively on #pc1500, but again display was small. 4 colors plotter was amazing.
#mz80k had an interesting font with symbols
#mz80b could display 40 or 80 columns text and 2 switchable graphic pages, all ORed together. Could be used for page flipping, etc. -
@metin First personal computer I touched in 1980 was a #Micral, thanks to a high school professor that gave me access to one
https://en.wikipedia.org/wiki/Micral
Then I had several #Sharp computers, a #pc1211 that my father bought, then temporary access to a #pc1500 (with plotter!), #mz80k and #mz80b, thanks to a Sharp reseller (Mr #Laussucq, in #Dax).
Got my first #ibmpc #Thomson clone in 1983 or 1984. -
@metin First personal computer I touched in 1980 was a #Micral (80-20?), thanks to a high school professor that gave me access to one
https://en.wikipedia.org/wiki/Micral
Then I had several #Sharp computers, a #pc1211 that my father bought, then temporary access to a #pc1500 (with small plotter!), #mz80k and #mz80b, thanks to a Sharp reseller (Mr #Laussucq, in #Dax).
Got my first #ibmpc #Thomson clone in 1983 or 1984. -
@metin First personal computer I touched in 1980 was a #Micral, thanks to a high school professor that gave me access to one
https://en.wikipedia.org/wiki/Micral
Then I had several #Sharp computers, a #pc1211 that my father bought, then temporary access to a #pc1500 (with plotter!), #mz80k and #mz80b, thanks to a Sharp reseller (Mr #Laussucq, in #Dax).
Got my first #ibmpc #Thomson clone in 1983 or 1984. -
@metin First personal computer I touched in 1980 was a #Micral, thanks to a high school professor that gave me access to one
https://en.wikipedia.org/wiki/Micral
Then I had several #Sharp computers, a #pc1211 that my father bought, then temporary access to a #pc1500 (with plotter!), #mz80k and #mz80b, thanks to a Sharp reseller (Mr #Laussucq, in #Dax).
Got my first #ibmpc #Thomson clone in 1983 or 1984.