31 Jul
2003
31 Jul
'03
2:27 p.m.
On Sat, 2003-07-12 at 07:49, Hans Pufal wrote:
We did some tinkering with our IBM 5100 the other day
with results which
might be of interest.
That statemnet surprised me and I wanted to confirm
it. Early
indication show that the two machines are remarkably alike in
performance (another suprise) the following program runs in the same
time (to the second) on both machines :
10 a = 0
20 print a, a*a, sqr(a)
30 a = a + 1
40 if a < 100 goto 20
50 stop
The 5100 seems about 30% faster on though with the following program:
10 a = 0
20 b = a*a
25 c = sqr(a)
30 a = a + 1
40 if a < 100 goto 20
50 stop
So it seems it is the display which slows it down.
Before you jump to that conclusion, remember that "print" does a fair
amount of processing to put the numbers into EBCDIC (for the IBM anyway
-- but ASCII would be similar) as you are dealing with "floating point"
(it also does *some* column formatting as indicated by "," as opposed to
";").
--
TTFN - Guy