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A JavaScript 65816 Microprocessor Emulator
63 Commits 2 Branches 0 Tags 300 KiB
JavaScript 97.7%
CSS 2%
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Preston Skupinski 4a48a49547 added CLD, SED and CLV
2011-05-09 12:37:09 -04:00
test added a space where I was missing one in one test message 2011-05-07 18:56:20 -04:00
.gitignore updated the TODO and added a .gitignore so my vim *swp files don't accidently wind up in here 2011-04-30 22:24:57 -04:00
cpu.js added CLD, SED and CLV 2011-05-09 12:37:09 -04:00
index.html initial commit 2011-04-30 21:45:56 -04:00
README fixed DEC operations to properly handle decrementing 0 by 1 and numerous fixes to the DEC and INC operations otherwise 2011-05-05 22:34:49 -04:00
TODO updated the TODO 2011-05-07 22:19:39 -04:00

README 

This project's goal is to fully emulate the 65816 microprocessor in JavaScript.  It would be awesome if at some point it could emulate an entire system such as the SNES, but that is something to consider later on. 

You call the execute function of the cpu object with a raw hex string representing the program you wish to emulate and it will execute those instructions as close to the 65816 as possible.

Short examples to try out:

var cpu = new CPU_65816();

cpu.execute("18fbc230a9ff0185ff64ffa5ff");

cpu.r.a should be 0 after executing this.

cpu.execute("18fbc230a9ff01a0010099fea5ff");

cpu.r.a should be 511 after executing this.