SYSCALL is AMD. SYSENTER is Intel, and is likely to be significantly
faster. Unfortunately SYSENTER is also extremely braindamaged, in
that it destroys *both* the EIP and the ESP beyond recovery, and
because it's allowed in V86 and 16-bit modes (where it will cause
permanent data loss) which means that it needs to be able to be turned
off for things like DOSEMU and WINE to work correctly.
-hpa
-- <hpa@transmeta.com> at work, <hpa@zytor.com> in private! "Unix gives you enough rope to shoot yourself in the foot." http://www.zytor.com/~hpa/puzzle.txt <amsp@zytor.com> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/