Philipp Tomsich philipp.tomsich@theobroma-systems.com schrieb am Fr., 8. März 2019, 18:53:
On 08.03.2019, at 18:28, Martin Husemann martin@NetBSD.org wrote:
On Fri, Mar 08, 2019 at 12:17:09PM -0500, Tom Rini wrote:
OK, so a few thoughts here.
- What's the portable way to do hex-based math? If we really need it?
Use printf(3) to convert to/from hex, and standard shell arithmetic with $(( )).
Looks horrible, but something like:
v=$(( $( printf "%d\n" 0xa0 ) + $( printf "%d\n" 0x10 ) )) printf "v = %d (%x)\n" $v $v
Can we just assume that awk is available? After all, AWK is defined in the top-level Makefile...
I guess we can, but see Toms mail from mid of December: not all awk flavours seem to supper hey numbers. So I guess the next round on this patch should try to test different shells as well as different awk's...
Regards, Simon