Posts tagged "pc8801mkii"

thumbnail for "The last ride of PC88 colour video"

The last ride of PC88 colour video

After a respin of the PC88 colour video board, the PC8801mkII now has excellent digital colour video out.

thumbnail for "A mystical journey to PC8801mkII colour video"

A mystical journey to PC8801mkII colour video

I’ve been using the monochrome video cable on my PC88 ever since I built it. Colour video was a little more complicated, so I ended up designing a bunch of adapters to try and get it to work. I’m happy to announce that one of those adapters has finally worked!

thumbnail for "Revenge of the PC-8801mkII floppy adapter board"

Revenge of the PC-8801mkII floppy adapter board

In the last entry, I found myself with a working adapter board to allow a 3.5” floppy drive (like a Gotek) to work with the NEC PC8801mkII. This liberated me from having to source, organize and maintain 5.25” floppy disks, and opens a large library of software for this computer without having to hunt through the used market. However, like all good things, there were a lot of bugs with the old adapter.

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PC-8801mkII floppy adapter board

I wanted to get a Gotek working on my PC88, and after seeing that there were a lot of Japanese hobbyists who had managed to get an HxC floppy emulator working, decided it must be possible - even if not simple.

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PC-8801mkII battery removal

I delved into the depths of my trusty Showa-era NEC to remove its leaking (leaked?) battery. Here’s what I found.

thumbnail for "Mini-updates - PC-8801, PC-9821, Macintosh LC520"

Mini-updates - PC-8801, PC-9821, Macintosh LC520

Going to try a new format for this entry; there are some small updates to keep a record of, but nothing deserving of a full entry on their own.

thumbnail for "PC-8801mkII monochrome video works"

PC-8801mkII monochrome video works

In the last entry, we left our intrepid hero with no video out. After a quick consultation of the Japanese internet, and a not-so-quick cable soldering job later, we now have black and white video and can use N88 BASIC (at least in theory).

thumbnail for "The PC8801mkII gets inspected"

The PC8801mkII gets inspected

While the PC9821 has horsepower and 90s clone styling for days, the real reason I spent all this effort and money was to get personal with the PC8801 platform. This humble little NEC home computer platform launched an indie game development revolution - well, or at least it did after this one was made. In fact, this 8801mkII, having been released immediately before the gaming-friendly 8801mkIISR, is only really useful to someone super weird who wants to learn about its guts on the cheap. I don’t know anyone like that around here, so I might as well do it. You’re welcome, future historians.

thumbnail for "Building a keyboard adapter for the early PC8801. (Part 1 - Research)"

Building a keyboard adapter for the early PC8801. (Part 1 - Research)

If all goes well, I will soon be the owner of an NEC PC-8801mkII “Model 30.” The platform is famous in Japan, as later models of the PC88 featured a ton of independent games, including many from developers who would go on to create games that were popular worldwide (Thexder, Snatcher and Ys all got their start on this platform). It also has a lot of trash, but neither of these things are interesting to me right now. I’d be happier just getting the computer to work (not least, because as a non-SR mkII, there are very few games I can enjoy on it anyway).

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