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From: Veli-Pekka Nousiainen on 29 Mar 2008 17:54
"JYA" <nospam(a)nospam.blah> wrote in message
news:47310f63$0$27294$426a34cc(a)news.free.fr...
X
> Now, for an object to be moved from say the SD card to Port 2, it must
> first go through the main RAM.
> So if you want to copy a 100kB file from Port 3 to Port 2, you must have
> at least 100kB of free RAM
>
> Jean-Yves

AAARGHH
Why not use 4K parts to do the transfer?
You could check that it fits, then do a piecewise transfer
Perhaps even an adaptive one:
Use max Main RAM for each transfer (last one could be smaller)
Naturally one leaves room for alarms etc interrupts
unless they are disabled while doing the Move


From: John H Meyers on 29 Mar 2008 18:37
On Sat, 29 Mar 2008 16:54:04 -0500:

JYA:
> for an object to be moved from say the SD card to Port 2,
> it must first go through the main RAM.
> So if you want to copy a 100kB file from Port 3 to Port 2,
> you must have at least 100kB of free RAM

VPN> AAARGHH

The leap from HP48 series to HP49/50 series was, however,
accompanied by the generous addition of 128K more user RAM,
which could provide all the room needed
for object transfers, flash packing, or archiving HOME,
provided that the user can resist the temptation
to overextend into a much bigger HOME than he can afford,
which is the same factor now devastating the economy :)

-[ ]-
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