From: Ian Lance Taylor <ian@zembu.com>
To: dicarlo@apegate.roma1.infn.it
Cc: binutils@sourceware.cygnus.com
Subject: Re: (BFD): Non-byte addressing possible?
Date: Fri, 14 Jul 2000 10:27:00 -0000 [thread overview]
Message-ID: <20000714172729.5605.qmail@daffy.airs.com> (raw)
In-Reply-To: <396F21DC.E28933B@apemaia.roma1.infn.it>
Date: Fri, 14 Jul 2000 16:21:16 +0200
From: Di Carlo Federico <dicarlo@apegate.roma1.infn.it>
We are trying to port all binutils to our parallel-architecture machine.
This architecture demands non per-byte addressing.
In fact we have to provide address via a 32 bit bus referring 16 byte (a
word, in this machine) with an address.
For example if address 0x8000 is address 0x4000 for memory controller
then address 0x8001 is address 0x4010 . So subseguent addresses refers
to 128 different bits in memory.
As far as we discovered it's not possible to force binutils (just BFD
ELF support, we guess, due to relocs) to support this feature, so we
think we'll have to do very strange magic translation at reloc/link
time.
Are there any features we didn't see or any back-end already using such
an addressing we could study?
See the tic54x and the octets_per_byte code. Perhaps it will help.
Ian
next prev parent reply other threads:[~2000-07-14 10:27 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-07-14 7:21 Di Carlo Federico
2000-07-14 8:11 ` gprof: bb counts John Levon
2000-07-14 10:27 ` Ian Lance Taylor [this message]
2000-07-17 5:32 (BFD): Non-byte addressing possible? Timothy Wall
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