branch_8 and branch_16 dont call pc changed

[chriscamacho]

I can see branch_8 and branch_16 dont call pc changed

I'm looking to be able to tell when the PC had reached a certain point, by checking pc in cpu_instr_callback i catch most cases except jumps, (by looking ahead pc+instruction size) and I was hoping the pc callback would let me catch the address when jumped to....

For now I've added the calls to 16/8 branches on my own copy, but what impact might this have for more advanced 68k's with some kind of more advanced "mmu" code relying on pc changed for only for branch_32