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From: Alan Modra <amodra@gmail.com>
To: Dmitry Selyutin <ghostmansd@gmail.com>
Cc: binutils@sourceware.org, gdb-patches@sourceware.org,
	Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Subject: Re: [PATCH 1/2] ppc: extend opindex to 16 bits
Date: Thu, 12 May 2022 09:43:54 +0930	[thread overview]
Message-ID: <YnxRQvTqbbnLC1JA@squeak.grove.modra.org> (raw)
In-Reply-To: <CAMqzjev0a5YLn24QEV1k1yvH_tCxuxHLSt4G7_xYMLEeYsoHJQ@mail.gmail.com>

On Wed, May 11, 2022 at 08:59:19PM +0300, Dmitry Selyutin wrote:
> +         Also, this field is signed due to historical reasons.  */

Huh?  What makes you say that?

Also, your patch misses changing the following.  The existing 0xff
mask was from a time when fx_pcrel_adjust was a signed char.

      int opindex = fixP->fx_pcrel_adjust & 0xff;

This could be any of
      int opindex = fixP->fx_pcrel_adjust & 0xffff;
      int opindex = (uint16_t) fixP->fx_pcrel_adjust;
      uint16_t opindex = fixP->fx_pcrel_adjust;
Which you choose is a matter of style.

-- 
Alan Modra
Australia Development Lab, IBM

  reply	other threads:[~2022-05-12  0:13 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-11 17:59 Dmitry Selyutin
2022-05-12  0:13 ` Alan Modra [this message]
2022-05-12  7:41   ` Dmitry Selyutin

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