[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [avr-gcc-list] Question about char pointers & avr-gcc on ATmega128

From: Joerg Wunsch
Subject: Re: [avr-gcc-list] Question about char pointers & avr-gcc on ATmega128
Date: Thu, 2 Jan 2003 14:21:54 +0100 (MET)

address@hidden wrote:

> I've read a few postings in AVRFREAKS and seen some discussion here
> that leads me to believe that char pointers are handled by avr-gcc
> as 24 bits in order to accommodate the larger 128K memory size.

Nope, they are 16 bits still.  When referring to code locations, they
are counted in 16-bit words, however, so with 64 KW of address space,
the entire flash ROM can be addressed.  (All instructions end up on a
word boundary anyway.)

Only .progmem data pointers are restricted to the lower 64 KB of

J"org Wunsch                                           Unix support engineer
address@hidden        http://www.interface-systems.de/~j/
avr-gcc-list at http://avr1.org

reply via email to

[Prev in Thread] Current Thread [Next in Thread]