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From: "Frank Ch. Eigler" <fche@redhat.com>
To: Brandon Warhurst <roboknight@starband.net>
Cc: sid@sources.redhat.com
Subject: Re: arm7t and the BL thumb instruction?
Date: Tue, 06 May 2003 17:01:00 -0000	[thread overview]
Message-ID: <20030506170123.GD32685@redhat.com> (raw)
In-Reply-To: <000301c31384$33a8fef0$6500a8c0@STARBAND.NET>

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Hi -

> [...] I think I might have located the problem, but am not sure.  If
> I read the code correctly, the Thumb decoder always makes
> entire_insn = base_insn >> 16 ... and if you are
> expecting the next instruction to appear in the upper end of base_insn this
> might make sense.  But if it for some reason appeared in the lower end of
> base_insn, you would throw away the instruction before anything got a chance
> to be executed.  [...]

Yikes.  I guess the thumb part hasn't been tested after it was last
regenerated.  I can fix this, though don't have any arm+thumb
elf binaries handy - do you?

- FChE

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      parent reply	other threads:[~2003-05-06 17:01 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-05-05 14:53 Brandon Warhurst
2003-05-05 15:08 ` Frank Ch. Eigler
     [not found]   ` <004e01c3131c$5c76fde0$6500a8c0@STARBAND.NET>
     [not found]     ` <20030505154850.GB3998@redhat.com>
     [not found]       ` <001c01c3132d$f4d87b70$6500a8c0@STARBAND.NET>
2003-05-05 17:47         ` Frank Ch. Eigler
     [not found]           ` <000301c31384$33a8fef0$6500a8c0@STARBAND.NET>
2003-05-06 17:01             ` Frank Ch. Eigler [this message]

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