From: fche@redhat.com (Frank Ch. Eigler)
To: Geoff Keating <geoffk@redhat.com>
Cc: cgen@sources.redhat.com
Subject: Re: field-start and varying word sizes
Date: Tue, 03 Jul 2001 14:24:00 -0000 [thread overview]
Message-ID: <o5wv5pzoy1.fsf@toenail.toronto.redhat.com> (raw)
In-Reply-To: <200107032054.NAA01495.cygnus.local.cgen@geoffk.org>
geoffk wrote:
: [...]
: I can see why someone might try to write this, but it can't work. It
: needs to know, as well as lsb0?, the endianess of the CPU.
: [...]
: In this case, the right thing to do is to just return
: (bitrange-start bitrange)
: [...]
: 2001-07-03 Geoffrey Keating <geoffk@redhat.com>
:
: * ifield.scm (<ifield> 'field-start): Don't look at word-len.
: [...]
Unfortunately this whole area of cgen (and the opcodes/ run-time) is
so messy that even an obvious looking change is untrustworthy. One
has to test a whole slew of different targets for confidence -- have
you done that?
- FChE
next parent reply other threads:[~2001-07-03 14:24 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200107032054.NAA01495.cygnus.local.cgen@geoffk.org>
2001-07-03 14:24 ` Frank Ch. Eigler [this message]
[not found] ` <o5wv5pzoy1.fsf.cygnus.local.cgen@toenail.toronto.redhat.com>
2001-07-03 15:12 ` Geoff Keating
2001-07-03 13:39 Geoff Keating
2001-07-03 14:42 ` Doug Evans
[not found] ` <15170.15391.989073.581389.cygnus.local.cgen@casey.transmeta.com>
2001-07-03 15:32 ` Geoff Keating
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