[comp.sys.handhelds] hp-28s speed

acmfiu@serss0.fiu.edu (ACMFIU) (02/05/91)

the faq that was just posted said software can change the speed of
the hp-28s (value in range 0-f (Default 7)). well, it didn't say
how to change it. so what's the answer?

albert

frechett@spot.Colorado.EDU (-=Runaway Daemon=-) (02/05/91)

In article <1991Feb5.071413.12259@agate.berkeley.edu> c60c-3ia@web-4d.berkeley.edu writes:
>
>If the spped of HP-28S can be changed, or even enhanced,why did HP not the 
>default to be f rather than 7?  Is this a "free lunch" or is there a pitfall?
There is a pitfall.  Basically, the hp28 architechture was not designed to 
handle that speed, which the 48sx is.  The processor is the same but there are
other things that might not like speed.  What I have heard from various people
on SPEED/FAST is that it is great but if you ever have calculations that 
absolutely must be correct, then don't use it as they might get corrupted.

But for most things, it is perfect reasonable to use.. graphics and such.
I have played with it a bit on my 28 and have found that in head to head 
tests with equivalent programs (pi generators) on the 48 that the 28 with FAST
runs a bit faster than the 48.  Of course for a pi generator I wonder if my
data is correct.  I never did actually go through and compare results closely.
Personally, I like the program SPEED rather than FAST because SPEED lets me 
change the value from 1 to 15.  1 is really entertaining.  It does fun things
to the beep.. Hope that helps.

	ian

-=Runaway Daemon=-