VIM Q again

[Ed Greshko]

Rick Stevens wrote:

> The Z80 had:
> 
>     JR idx(unconditional)
>     JR Z,idx (jump relative if zero)
>     JR NZ,idx (jump relative if non-zero)
>     JR C,idx (jump relative if carry)
>     JR NC,idx (jump relative if non-carry)
> 
> And one of my favorites for loops:
> 
>     DJNZ idx (decrement and jump relative if non-zero)
> 
> So, yes, the Z80 had conditional relative jumps.  It also had that nice
> set of secondary registers...very handy for interrupt processing.

Oh, no!   You've started my "flashback" processor running.  I'm not going to 
get any work done today.  Please stop.  :-) :-)