Hi,some quentions about OpenRISC 1000 instructions!!

hi,everyone.
now ,in my SoC project,the whole HDL code have been done successful.
...
our control system has no RTOS,so many many assemble language.
and when i use the instruction that is"l.sfges"...
and then i use "l.sfne...",please tell me the FLAG (SR[F])must remove between these two instructions~~
if not,please tell me how i do ?