System Architecture—IP2022 User’s Manual 34 www.ubicom.com 2.4.2 Instruction Timing All instructions that perform branches take 3 cycles to complete,
consisting of 1 cycle to execute and 2 cycles to load the pipeline. In the case of an automatic speed change, the execution time will
be with respect to the original speed and the pipeline load time will
be with respect to the new speed. Conditional  branching  is  implemented  in  the  IP2022  by  using
conditional skip instructions to branch over an unconditional jump
instruction. To support conditional branching to other pages, the
conditional skip instructions will skip over two instructions if the
first  instruction  is  a  page  instruction.  The  loadh  and  loadl
instructions  also  cause  an  additional  instruction  to  be  skipped.
When any of these conditions occur, it is called an extended skip instruction. Skip instructions take 1 cycle if they do not skip, or 2 cycles if they
skip over one instruction. An extended skip instruction may skip
over   more   than   one   loadh,   loadl,   or   page   instruction, Table 2-1  Branch Timing Instruction Execution Time Pipeline Load Time jmp 1 2 call 1 2 ret 1 2 reti 1 2