Only 4 months from the last issue and we already have another! In this
issue of the somewhat irregular eMagazine, we have:
Beginners' Corner:
where we discuss simply screen and file handling. Experienced readers
should skip over the excruciating detail that I go into to help beginners.
Sudoku Solver:
yes indeed, a Sudoku solver for 9 by 9 grids. I say "solver" but it's
really a brute force algorithm using recursion and backtracking to guess
which numbers will eventually provide a solution. (Or not!) There's a
demonstration puzzle and a few examples to load and solve. You can make
your own puzzles up and load them too -- the code will let you know if a
puzzle cannot be solved.
Multiplication:
a small but perfectly formed chunk of assembly code to multiply two 32
bit unsigned values to give a 64 bit product. Did you notice unsigned
there? Yes, me too. I convinced myself to add in a bit of extra code and
make it multiply signed numbers as well.
We also have more News and Quickies again in this issue.
As ever, you do not need the source code, that's GitHub's processing of
a release, just grab the PDF from the asset list at the link below.
Click the arrow to open the list if it's not already open.
https://github.com/NormanDunbar/QLAssemblyLanguageMagazine/releases/tag/Issue_11
Cheers,
Norm.
--
Norman Dunbar
Dunbar IT Consultants Ltd
Registered address:
27a Lidget Hill
Pudsey
West Yorkshire
United Kingdom
LS28 7LG
Company Number: 05132767
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