* Michael Ellerman: > I'm a bit vague on what we're trying to do here. > > But it seems like you want some sort of "eye catcher" prior to the branch? > > That value is a valid instruction on current CPUs (rlwimi. > r5,r24,6,1,9), and even if it wasn't it could become one in future. > > If you change it to 0x8053530 that is both a valid instruction and is a > nop (conditional trap immediate but with no conditions set).
I think we need something that is very unlikely to appear in the instruction stream. It's just a marker. The instruction will never be executed, and it does not have to be a trap, either (I believe that a standard trap instruction would be a bad choice). Thanks, Florian
