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Re: How to handle overlapping RAM and ROM addreses ?
- From: Michael Hennebry <hennebry at web dot cs dot ndsu dot nodak dot edu>
- To: Stelian Pop <stelian at popies dot net>
- Cc: <binutils at sourceware dot org>
- Date: Wed, 13 Feb 2008 11:39:25 -0600 (CST)
- Subject: Re: How to handle overlapping RAM and ROM addreses ?
On Wed, 13 Feb 2008, Stelian Pop wrote:
> I'm working on a binutils/gcc port for a custom microcontroller. This
> microcontroller has separate buses for RAM and ROM, and uses different
> instructions to address the ROM and the RAM.
>
> How can I handle this in ld ? I could give a fake starting offset to one
> of the two sections in order to make them not overlap, but maybe there
> is a better way to handle this.
>
> Does this problem already exist with one of the supported
> architectures ?
Yup.
AVRs have three memory spaces and that is how the problem is handled.
--
Michael hennebry@web.cs.ndsu.NoDak.edu
"Those parts of the system that you can hit with a hammer (not advised)
are called Hardware; those program instructions that you can only
curse at are called Software."