> And please: post the results of your tests!
>
Some more results--it appears to be a triple-nested loop with two of the
loops "loop with" and one "loop while".
on test6
ms = the milliseconds
a = 0
repeat while a < 10000
repeat with i = 0 to 99
repeat with j = 0 to 4
nothing
end repeat
end repeat
a = a + 1
end repeat
put the milliseconds - ms
put i & " / " & j & " / " & a
end
on test7
ms = the milliseconds
a = 0
i = 0
repeat while a < 10000
repeat while i < 100
repeat with j = 0 to 4
nothing
end repeat
i = i + 1
end repeat
a = a + 1
end repeat
put the milliseconds - ms
put i & " / " & j & " / " & a
end
test6
-- 10572
-- "100 / 5 / 10000"
test7
-- 15
-- "100 / 5 / 10000"
Very interesting. I wonder what's going on under the hood. If I did the
equivalent in assembler, I would use a register variable for the
equivalent of a "loop with", and it would be much faster than the "loop
while." At least on Intel chips--they have a special register for loops,
and an assembly-language operator the allows the loop incrementing to be
done in hardware. That doesn't seem to be going on here, though.
Cordially,
Kerry Thompson
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