Tag Archives: assembly

When old and new meet: lessons from the past

As you may know, I like to dabble in retro-computing. I have held on to most computers I’ve used over the years, and I play with them from time to time. However, an interesting change has happened over the years: … Continue reading

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Just keeping it real, part 10.1

Last time, I covered the basics of doing multiply and divide with 8-bit numbers. So far, these routines only worked for unsigned numbers. This time I will show how to add support for signed numbers, some ways to extend these … Continue reading

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Just keeping it real, part 10

Let’s explore the Commodore 64 some more. The topic today is: mathematics. And again, we are going to keep it real, VERY real. I have to admit, originally the ‘keeping it real’ was mainly a play of words on the … Continue reading

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Just keeping it real, part 9

Right, the topic is still the Commodore 64. This time I want to get more technical and explain how to actually program some things. But first I would like to paint a picture of C64 programming in general. When the … Continue reading

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Just keeping it real, part 8

As I already said in the first part of this series, one of my first computers was the Commodore 64, and I would love to know more about programming it at a low level. I think I will follow roughly the … Continue reading

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Scali’s guide to joyful programming

Another fun piece that I wrote quite a while ago. I think most of it still applies today, although Java has long been replaced by C#. Then again, as the languages are so similar, you can just replace ‘Java’ with … Continue reading

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CPUs and pipelines, how do they work?

After the tutorial on C that I re-published recently, it is now time for another old article that is still remarkably educational and useful today. It describes the internals of the Pentium and Pentium Pro CPUs. Ironically enough, today’s Intel … Continue reading

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