On 08/Mar/2019 18:28, Martin Husemann 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 > > > ... maybe arranged into some sh helper functions.
dash, bash, mksh, zsh, all ksh-compatible shells in fact, support hex numbers on arithmetic expressions, no need for conversion. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
