Hi,

;16 cycles, destroys RegA, result in RebB

 rlf RegA,f
 rrf RegB,f
 rlf RegA,f
 rrf RegB,f
 rlf RegA,f
 rrf RegB,f
 rlf RegA,f
 rrf RegB,f
 rlf RegA,f
 rrf RegB,f
 rlf RegA,f
 rrf RegB,f
 rlf RegA,f
 rrf RegB,f
 rlf RegA,f
 rrf RegB,f

regards,
Reggie