dev builds
themes manual
device status forums
mailing lists
IRC bugs
dev guide

Rockbox mail archive

Subject: arrays & pointers

arrays & pointers

From: BlueChip <>
Date: 2005-01-03

Just saw this go in...

Log Message:
using a pointer instead of array dereferencing saves ~250 bytes

 From my work on the card games library ...I discovered that arrays are
probably THE most expensive thing for our compiler. If you are going to
reference an element in array even just twice, it is memory efficient to
create a pointer to that element and use the pointer instead.

Given the _excessive_ efficiency of it, I guess it is also faster as well!

If you're going to access the pointer several times, you might even like to
stick a "register" in front of it for extra speed :)


Received on Mon Jan 3 21:37:09 2005

Page was last modified "Jan 10 2012" The Rockbox Crew