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Detecting 86/87 GIME and NTSC/PAL
Cloud Kingdoms needs to use very precise timing to know when to switch from graphics mode to text mode for the score area at the bottom of the screen. If the timing is off by even a little bit, flickering … Continue reading
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Tagged coco-3, gaming, Programming, retro-computers, trs-80, video-games
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Paganitzu PCX Library Files – Part 2
In Part 1, we saw that each “file” stored inside the PCX Library file started with an 84-byte header. In this post we’ll look at the files stored inside the Paganitzu data file PAGA1.004 and see what they are. Here’s the format … Continue reading
Paganitzu PCX Library Files – Part 1
According to https://moddingwiki.shikadi.net/wiki/Paganitzu, Paganitzu has three data files that are “PCX Library” files. That same site has good information about the format of these PCX Library files (https://moddingwiki.shikadi.net/wiki/PCX_Library). Use this link to see all the posts in this “Reverse Engineering … Continue reading
Posted in Programming, Reverse Engineering, Technology
Tagged DOS, Game, Paganitzu, PCX, Programming, Reverse engineering
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Paganitzu Font Data
It’s been a bit since I posted last. Unfortunately, that seems to be normal for me. I’ve made quite a bit of progress since last time. I’ve figured out all the data files, written programs in C# for Windows that … Continue reading
Posted in Programming, Reverse Engineering, Technology
Tagged DOS, Fonts, Game, Paganitzu, Programming, Reverse engineering
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Reverse Engineering Paganitzu
One of my most enjoyable hobbies is reverse engineering old 1980s/90s DOS games. This is very akin to an archeologist learning everything they can about a culture by examining dug up buildings, bones, artifacts, etc. The original source code for … Continue reading
Posted in Programming, Technology
Tagged DOS, Game, Paganitzu, PCX, Reverse engineering
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Building DOSBox
One of my favorite hobbies is reverse engineering 16-bit x86 DOS games. Being able to step through their code as they’re running and set breakpoints is a majorly useful tool. I was using DOSBox and the normal DOS DEBUG command … Continue reading
Quantizing Colors in an image using an Octree and a Binary Heap
Introduction Quantizing the colors in an image is the process of reducing the number of distinct colors in an image, leaving the picture as visually similar as possible to the original image. Some examples of why you might want to … Continue reading
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Mid-life crisis and electronics!
My normal way of tackling hobbies is to dive head first into something (electronics, game programming, wood working, paper craft, robotics, leather working, …) and pour my heart and soul into it… for about 2 weeks. Then my enthusiasm wanes … Continue reading
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Back of the brain…
This is going to be a living post. In it I’ll keep a continually changing and morphing list of things I’ve ran across that I want to dig into further and research, learn, play with, etc.