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Intel8080 emulation in JavaScript
Great work!! I could not find any mention of LICENSE
. Which do you intend to apply? I thought this would make a great addition to my little project gamer.
Thanks again for the project and the detailed explanation.
A while ago you tweeted that IE11 perf was lacking.
After some investigation it looks like the issue is on line 44 of screen.js.
If you change
var i = (y * imagedata.width + x) * 4;
to this
var i = (y * (imagedata.width | 0) + x) * 4;
you'll get better performance.
The issue comes down to Chakra incorrectly type specializing i
as a float, partly because it lacks information about the DOM property imagedata.width
. Explicitly coercing imagedata.width
to an integer gives Chakra the info it needs to avoid the mix-up. I've filed a bug with Chakra to address this issue.
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