Comment Comment by gopalv I think the GP was probably thinking of INTO(0xCE).https://en.wikipedia.org/wiki/INT_(x86_instruction)#INTOThe bounds-checking was MPX, I think.> Another extremely useful instruction deleted from x86-64 tested if an array access was in bounds.https://en.wikipedia.org/wiki/Intel_MPX#Extensions parent gopalv 6 years ago
https://en.wikipedia.org/wiki/INT_(x86_instruction)#INTO
The bounds-checking was MPX, I think.
> Another extremely useful instruction deleted from x86-64 tested if an array access was in bounds.
https://en.wikipedia.org/wiki/Intel_MPX#Extensions