'rol' -> 'shr', as the effect on carry is not defined for 'rol'
'rol' -> 'shr', as the effect on carry is not defined for 'rol'

rsdoiel/picolisp,seanjensengrey/picolisp,rsdoiel/picolisp,rsdoiel/picolisp,rsdoiel/picolisp,rsdoiel/picolisp,seanjensengrey/picolisp,seanjensengrey/picolisp,rsdoiel/picolisp,seanjensengrey/picolisp,seanjensengrey/picolisp