Repetition of REP Instructions That Don’t Repeat Anything

Posted by ingve on Saturday February 13, 2016 @04:55PM
from the xlogicx.net dept.

( 2 comments | 28 points | on HN )

Re:Repetition of REP Instructions That Don’t Repeat Anything by yyin on Sunday February 14, 2016 @01:20PM (#11099266)

Why was the Consistent Instruction Sizes entry not posted but this one was? This entry appears to be yet another way to achieve it.

Maybe I am wrong, but if all instruction sizes were the same I could imagine disassembling by simply parsing hexdumps of binaries.

[ Parent | on HN ]

Re:Repetition of REP Instructions That Don’t Repeat Anything by EscapeFromMars on Monday February 15, 2016 @07:34PM (#11107121)

Reminds me of GCC emit rep ret to work around AMD bug in branch predication.

[ Parent | on HN ]