mozilla/shumway — comment on commit dea2d3475cdf53fa2d2b52b9f44a2fe02b3a94c8
File: src/avm2/avm2.js line 55
By andreasgal:

JS does unsigned bith math (>>>) on 32 bit integers plus sign bit. The high bits of the 5th byte on't matter if they are beyond 32 bit.