From: Joel Sherrill <joel@OARcorp.com>
To: Ian Lance Taylor <ian@cygnus.com>
Cc: gas2@cygnus.com
Subject: Re: binutils 2.8.1 cpu32 bug
Date: Wed, 24 Sep 1997 14:08:00 -0000 [thread overview]
Message-ID: <Pine.BSF.3.96.970924160711.26001A-100000@vespucci.advicom.net> (raw)
In-Reply-To: <199709241742.NAA05637@subrogation.cygnus.com>
The user was on a 68360. I have a manual if you don't. Jus tlet me know
what to look up. I do not know offhand what the actual bug being fixed
was. Do you want me to ask them for a test case or example?
--joel
On Wed, 24 Sep 1997, Ian Lance Taylor wrote:
> Date: Mon, 15 Sep 1997 14:05:26 -0500 (CDT)
> From: Joel Sherrill <joel@OARcorp.com>
>
> Here is a fix I received from an RTEMS user. This was in binutils 2.8.1
> and I am not sure whether or not it has been fixed since.
>
> --joel
>
> =====================================================================
> *** binutils-2.8.1/opcodes/m68k-opc.c Wed Aug 6 09:47:31 1997
> --- /usr/src/local/gnu/src/binutils-2.8.1.0.1/opcodes/m68k-opc.c
> Wed Jul 23 21:09:13 1997
> ***************
> *** 1760,1766 ****
>
> #define TBL1(name,signed,round,size) \
> {name, two(0174000, (signed<<11)|(!round<<10)|(size<<6)|0000400), \
> ! two(0177700,0107777), "`sD1", cpu32 }, \
> {name, two(0174000, (signed<<11)|(!round<<10)|(size<<6)), \
> two(0177770,0107770), "DsD3D1", cpu32 }
> #define TBL(name1, name2, name3, s, r) \
> --- 1760,1766 ----
>
> #define TBL1(name,signed,round,size) \
> {name, two(0174000, (signed<<11)|(!round<<10)|(size<<6)|0000400), \
> ! two(0177700,0107777), "@lD1", cpu32 }, \
> {name, two(0174000, (signed<<11)|(!round<<10)|(size<<6)), \
> two(0177770,0107770), "DsD3D1", cpu32 }
> #define TBL(name1, name2, name3, s, r) \
>
> I don't understand this patch, and I would need more information. My
> m680x0 book indicates that the original value is correct, since the
> set of operands permitted for the tbl instructions are very limited.
>
> ***************
> *** 1825,1837 ****
>
> {"trapv", one(0047166), one(0177777), "", m68000up },
>
> ! {"tstb", one(0045000), one(0177700), ";b", m68020up | mcf5200 },
> {"tstb", one(0045000), one(0177700), "@b", m68000up },
> ! {"tstw", one(0045100), one(0177700), "*w", m68020up | mcf5200 },
> ! {"tstw", one(0045110), one(0177700), "As", cpu32 },
> {"tstw", one(0045100), one(0177700), "@w", m68000up },
> ! {"tstl", one(0045200), one(0177700), "*l", m68020up | mcf5200 },
> ! {"tstl", one(0045210), one(0177700), "As", cpu32 },
> {"tstl", one(0045200), one(0177700), "@l", m68000up },
>
> {"unlk", one(0047130), one(0177770), "As", m68000up | mcf5200 },
> --- 1825,1835 ----
>
> {"trapv", one(0047166), one(0177777), "", m68000up },
>
> ! {"tstb", one(0045000), one(0177700), ";b", m68020up |
> mcf5200 | cpu32 },
> {"tstb", one(0045000), one(0177700), "@b", m68000up },
> ! {"tstw", one(0045100), one(0177700), "*w", m68020up |
> mcf5200 | cpu32 },
> {"tstw", one(0045100), one(0177700), "@w", m68000up },
> ! {"tstl", one(0045200), one(0177700), "*l", m68020up |
> mcf5200 | cpu32 },
> {"tstl", one(0045200), one(0177700), "@l", m68000up },
>
> {"unlk", one(0047130), one(0177770), "As", m68000up | mcf5200 },
>
> I checked in a version of this patch. Oddly, the original source does
> not appear in my sources. Thanks for sending it.
>
> Ian
>
next prev parent reply other threads:[~1997-09-24 14:08 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
1997-09-15 12:05 Joel Sherrill
1997-09-24 10:42 ` Ian Lance Taylor
1997-09-24 14:08 ` Joel Sherrill [this message]
1997-09-24 15:42 ` Ian Lance Taylor
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