From:	Scott DOT Mintz AT po DOT cle DOT ab DOT com (Scott Mintz)
Subject:	Re[2]: Bug in h8300.c
9 May 1997 04:37:25 -0700 :
Approved:	cygnus DOT gnu-win32 AT cygnus DOT com
Distribution:	cygnus
Message-ID:	<00059C33.1893.cygnus.gnu-win32@po.cle.ab.com>
Mime-Version:	1.0
Original-To:	Geoffrey Noer <noer AT cygnus DOT com>, gnu-win32 AT cygnus DOT com
Original-Sender:	owner-gnu-win32 AT cygnus DOT com

     This bug still exists in the b18 sources...


______________________________ Reply Separator _________________________________
Subject: Re: Bug in h8300.c
Author:  Geoffrey Noer <noer AT cygnus DOT com> at Internet
Date:    5/8/97 3:01 PM


This was already fixed in development sources.  Thanks anyway...
     
Geoff
     
Scott Mintz wrote:
> 
>      I built a cygwin32 cross compiler for the H8300-hms on a WinNT machine 
>      using the 17.1 CDK.
>      
>      The file h8300.c in the gcc/config/h8300 subdirectory has the 
>      following defined:
>      
>      /* Output assembly language code for the function prologue.  */ 
>      static int push_order[FIRST_PSEUDO_REGISTER] =
>      {0, 1, 2, 3, 4, 5, 6, -1, -1};
>      static int pop_order[FIRST_PSEUDO_REGISTER] = 
>      {6, 5, 4, 3, 2, 1, 0, -1, -1};
>      
>      where FIRST_PSEUDO_REGISTER is defined to be 10. 
>      
>      The last item in the above arrays gets defined as 0 because there are 
>      only 9 initializers instead of 10.
>      
>      This causes the generated interrupt prologue/epilogue code to be 
>      incorrect.
>      
>      The arrays should be defined this way: 
>      
>      /* Output assembly language code for the function prologue.  */ 
>      static int push_order[FIRST_PSEUDO_REGISTER] =
>      {0, 1, 2, 3, 4, 5, 6, -1, -1, -1};
>      static int pop_order[FIRST_PSEUDO_REGISTER] = 
>      {6, 5, 4, 3, 2, 1, 0, -1, -1, -1};
>      
>      +------------------------------+------------------------------------+ 
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> 
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-- 
Geoffrey Noer
noer AT cygnus DOT com
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