rubyx/test/runners/fibo_while.rb

14 lines
443 B
Ruby

def fibonaccit(n) # n == r0
a = 0 # a == r1
b = 1 # b = r2
while( n > 1 ) do #BUG comment lines + comments behind function calls
tmp = a # r3 <- r1
a = b # r1 <- r2
b = tmp + b # r4 = r2 + r3 (r4 transient) r2 <- r4
putstring(b)
n = n - 1 # r2 <- 0 ???? #call ok
end #r5 <- r0 - 1 # r0 <- r5
end
fibonaccit( 10 )