A MIX simulator
A MIX simulator launched on March 17, 2017 with 50 votes, #810 of 3,481 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 9 years on.
In plain words
A MIX 1010 is a simulator for Knuth's MIX machine, a theoretical computer described in The Art of Computer Programming. This version differs from the original MIX 1009 by using binary-encoded masks and omitting division and multiplication instructions. Users write programs in an assembler language with customizable syntax for labels, masks, instructions, and addressing modes. The simulator includes detailed documentation and an instruction reference on GitHub, making it suitable for students and enthusiasts learning about computer architecture and assembly language fundamentals.
written from the facts on this page · September 2026
From the sources
This is a simulator for Knuth's MIX machine from the book Art of Computer Programming . We use the identifier 1010 because this machine is slightly different from MIX 1009. We encode masks using binary and there is no division or multiplication instructions. A detailed readme and instruction list can be found on github . Statements in the assembler language look like (:label) (/mask) (instruction) (relative address) (+index) . Instuctions in memory look like address(:label) (/mask) (instruction) (address) (+index) . Here is an example multiplication routine: Here is an example where we compute the maximum in an array of numbers. here is an example where we traverse a binary tree with an…from danielbarter.github.io
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