[ixp1200] question about br_bset

19 Nov 2003

      Hello, everybody 

I encounter a problem when I debug my microace code. 
I really don't know how to solve this weird problem. 

In following code: 

               scratch[read, $l0197!entry4, l0196!tmp2, l0196!tmp, 1], 
ctx_swap 
               alu[l0196!entry_hashed, --, b, $l0197!entry4] 
               nop 
               nop 
               nop 
               br_bset[l0196!entry_hashed, 7, m335_not_found1#] 

I read a value from scratch pad, i.e. entry4 
the value is 0xff when I debug 
so the br_bset instruction should branch to m335_not_found1#. 

Howerver, it branch to 1980(not exists, totally 1000 instructions in my 
code). 
And the microengine stop there. 

Anyone knows why this happened?

Thanks a lot! 

Yong Liu