Mini-challenge: Fast F(93) on HP-16C

[Joe Horn]

Another thread discusses different ways to generate Fibonacci numbers on the HP-15C. However, due to its 10-digit mantissa, the largest exact result the 15C can output is F(49). But the HP-16C in DEC UNSIGNED mode with WSIZE set to 64 would be able to output F(93) exactly. The fastest HP-16C program to return exact F(n) for any input n between 0 and 93 wins.

A speed comparison for this program between a real HP-16C and the new 15C CE in 16C mode would be interesting.

Although I searched these forums for a 16C Fibonacci program and found none, please forgive me if you already posted one. If so, please share a link to it. Thanks in advance.

EDIT -- I just noticed the "DBL×" function on the 16C. I don't know how that works. Would it enable results bigger than F(93)?