Tag Archives: IBM

Some thoughts on emulators

Recently I watched Trixter’s latest Q&A video on YouTube, and at 26:15 there was a question regarding PC emulators: That got me thinking, I have some things I’d like to share on that subject as well. First of all, I … Continue reading

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The IBM Music Feature Card and Yamaha FB-01

This has got to be one of the most obscure pieces of hardware I have covered so far. A sound card for the IBM PC, released in 1987. And by none other than Big Blue themselves! I am talking about … Continue reading

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The DreamBlaster S2P: General MIDI from a parallel port

In the interest of catching up, here is the second blog that is long overdue. I want to talk about the DreamBlaster S2P from Serdaco. I received mine over a year ago, and it actually was an early prototype. The … Continue reading

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Putting the things together, part 2: MIDI and other problems

Remember a few months ago, when I explained my approach to playing VGM files? Well, VGM files are remarkably similar to Standard MIDI files. In a way, MIDI files are also just time-stamped captures of data sent to a sound … Continue reading

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More PC(jr) incompatibilities!

The race for PC-compatibility Since the mid-80s, there have been many clones of the original IBM PC. IBM themselves also made new-and-improved versions of the PC, aiming for backward-compatibility. DOS itself was more or less a clone of CP/M, and … Continue reading

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Putting the things together

So, over time I have discussed various isolated things related to 8088-based PCs. Specifically: Using the latched property of the 8253 programmable interval timer to be able to adjust the interval without any jitter/skew, so you can use it as … Continue reading

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Commander Keen 4: now in 16-colour composite CGA!

Perhaps you have already heard it through the grapevine, but just to be sure, I’d like to mention that VileR (of 8088 MPH fame)has patched the Keen 4 code and redid all the graphics to make the most of the … Continue reading

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8088 MPH: The polygons

The last effect in 8088 MPH to be discussed is the polygon renderer. As already mentioned earlier, it is not a regular polygon renderer, but actually a ‘delta-renderer’: it does not rasterize pixels directly, but for each scanline, it uses … Continue reading

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8088 MPH: Sprites? Where we’re going, we don’t need… sprites!

I would like to give some technical background information on the sprite part in 8088 MPH, but before I do that, I want to discuss the music and the musicians, as they did not seem to have gotten very much … Continue reading

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Just keeping it real at Revision 2015

The demo I have made together with Trixter, reenigne, VileR, coda, virt and Phoenix has won the oldskool compo at Revision 2015: I will discuss some of it in more detail at a later time. Trixter has already done a … Continue reading

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