1 - Add new instructions such as: andnot, ror, rol, setcond, clz, ctz,

     2   popcnt.

     3 

     4 - See if it is worth exporting mul2, mulu2, div2, divu2. 

     5 

     6 - Support of globals saved in fixed registers between TBs.

     7 

     8 Ideas:

     9 

    10 - Move the slow part of the qemu_ld/st ops after the end of the TB.

    11 

    12 - Change exception syntax to get closer to QOP system (exception

    13   parameters given with a specific instruction).

    14 

    15 - Add float and vector support.