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Category Archives: Projects
KenKen vs. Sudoku
According to Slate, there’s a push afoot to popularize a Sudoku-like game named KenKen. Since it’s already been demonstrated that Sudoku falls easily to a little programming, I thought it would be interesting to (informally) compare and contrast the two … Continue reading
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Disassembler (Odds and Ends)
This week, I post some remarks following up on the just-concluded disassembler tutorial; there are always a few loose ends to tie up, and I wanted to clarify or expand on: The opcode map Addressing Demo code Hardening
Posted in Planet Microsoft, Projects, Python, Reverse Engineering
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Disassembler (Part 3)
Editorial Note: Over the last two weeks, we’ve done the groundwork for building a disassembler: We’ve seen how to find documentation for a machine’s instruction format, how to read machine code by hand, and how to build up a machine-readable … Continue reading
Posted in Projects, Python, Reverse Engineering
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Disassembler (Part 2)
Editorial Note: This article is the second in a three part series on writing an 8086 disassembler. Today we’ll cover the practical issues involved in finding an opcode map; we saw last week that such a map is central to … Continue reading
Posted in Projects, Reverse Engineering
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Disassembler (Part 1)
Editorial Note: This article is the first in a three part series on writing a disassembler. Today we’ll cover the high-level concepts involved in disassembly and see how to read machine code “by hand”. Next week, we’ll look at the … Continue reading
Posted in Planet Microsoft, Projects, Python, Reverse Engineering
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Isometric Graphics w/JS & HTML
As an experiment, I decided to see if I could approximate a Flash game in JavaScript and HTML (without using the non-standard CANVAS tag). It turns out to be pretty easy to replicate an isometric display using some simple 2D … Continue reading
Posted in Projects, Reverse Engineering
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Bloxorz/Bloxors
A few months ago I came across a cute little puzzle game called Bloxorz. Inspired by Norvig’s Sudoku solver, I hacked together a JS-based pathfinder for Bloxorz problems. Although the proper spelling of the game’s name continues to frustrate me, … Continue reading
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Working with binary data in JavaScript
I recently needed to manipulate some binary data within JavaScript; my data stream was represented as a series of bytes, and I needed to extract floating point numbers from it. There were some existing solutions available on the Internet, but … Continue reading
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