[U-Boot-Users] Compiler question: integer division?
Jerry Van Baren
gerald.vanbaren at smiths-aerospace.com
Fri Apr 22 19:10:57 CEST 2005
Steven Scholz wrote:
> Hi there,
>
> I just wondered if the code
>
> return (dtt_read(sensor, DTT_READ_TEMP) / 256);
>
> would be result in a "shift by 8" or and interger division?
>
> Thanks,
>
> Steven
Short answer: Yes.
Longer answer: It depends on the compiler, target processor, and
optimization levels. Usually it will be a "shift by 8" (which may or
may not actually be a shift -- see the PowerPC "Swiss Army Knife[tm]"
instruction rlwimi).
gvb
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