Yes it could. But giving this out_mask info to the low layer JTAG API 
can really help to accelerate the JTAG interface itself and accelerating 
the OpenOCD by the way.

Same for in_check_mask and other _mask parameters.

The best you can do is to write new smaller functions calling the actual 
JTAG API . 
But do not modify the actual JTAG layer, just for fun or just to be cleaner!
If you go in this way, you will finish to have a JTAG API layer wiggling 
the TMS / TCK / TDI -> old age !

---------------------------------------------------------
IT IS A VERY BAD REGRESSION FOR OPENOCD
---------------------------------------------------------

Laurent
  http://www.amontec.com
  Amontec JTAGkey at http://www.amontec.com/jtagkey.shtml

Øyvind Harboe wrote:
>> Yes, field.out_mask is not used for ARM Debug, but could
>> be very important for pure boundary scan test !
>>     
>
> This can be done from the calling code and it will be much clearer
> what's going on.
>
>
>   

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