[U-Boot] Mathematics operation on uboot variables

[Detlev Zundel]

Hi Eran,

> Is there any way to use mathematics operation on uboot environment or  uboot
> local variables?
> since $varA+$varB and $(varA+varB) just save the string. 

You need to include CONFIG_CMD_SETEXPR in your configuration for such a
functionality.  See common/cmd_setexpr.c.

Cheers
  Detlev

-- 
Q: What is a compact city?
A: It's a city that can be guarded by finitely many near-sighted
   policemen.
--
DENX Software Engineering GmbH,      MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich,  Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-40 Fax: (+49)-8142-66989-80 Email: dzu at denx.de