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Ground-up rewrite of the Javascript Spectrum emulator
Home Page: http://jsspeccy.zxdemo.org/
License: GNU General Public License v3.0
This project forked from gasman/jsspeccy2
Ground-up rewrite of the Javascript Spectrum emulator
Home Page: http://jsspeccy.zxdemo.org/
License: GNU General Public License v3.0
JSSpeccy: A ZX Spectrum emulator in pure JavaScript =================================================== https://github.com/gasman/jsspeccy2 Foreword to version 2.x ----------------------- When I started this project in 2009, writing an emulator in JavaScript was a silly idea. Now, thanks to advances in JavaScript engines, and new APIs emerging from HTML5 and WebGL, it has become a significantly less silly idea, which means that the time is right for a more serious attempt at the job. What's new? ----------- Everything, basically... it's a ground-up rewrite. In particular: * Z80 core uses typed arrays[0] where appropriate, for a healthy performance boost (and significantly less faffing around with '& 0xff' everywhere to get around the lack of strong typing in JavaScript) * More JavaScript-ish architecture - the Z80 instruction set is built up through copious use of closures, rather than borrowing Fuse's Perl generator script wholesale. (It's still heavily based on Fuse's Z80 core though.) * 128K support! * 99% accurate display emulation, for multicolour effects and the like * TZX file support (only via tape traps; custom loaders won't work) * Integration with the World Of Spectrum API, for instant loading of thousands of software titles [0] https://developer.mozilla.org/en/javascript_typed_arrays Building -------- Perl, CoffeeScript[1] and Closure Compiler[2] are required. To build: make This will place all web-distributable files into the 'dist' folder. [1] http://jashkenas.github.com/coffee-script/ [2] https://developers.google.com/closure/compiler/ Browser support --------------- Tested successfully on Chrome 32, Firefox 26 and Safari 7.0.1. Support for typed arrays and the PixelData API are absolutely required, and it'll almost certainly stay that way. Matt Westcott <[email protected]> - http://matt.west.co.tt/ - @gasmanic
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