Messages in this thread | | | From | "H. Peter Anvin" <> | Subject | Re: RFC: booleans and the kernel | Date | 24 Jan 2002 14:05:01 -0800 |
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Followup to: <Pine.LNX.3.95.1020124165419.1859A-100000@chaos.analogic.com> By author: "Richard B. Johnson" <root@chaos.analogic.com> In newsgroup: linux.dev.kernel > > Don't you wish! > > cmpl $0,8(%ebp) <-------------- Compare against zero.
That's the fastest way in x86 to compare a memory variable against zero. andl %reg,%reg only works if the value is already in a register.
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