Subject: Re[2]: Bug in h8300.c
From: [email-masked] (Scott Mintz)

9 May 1997 04:37:25 -0700
Approved: [email-masked]
Distribution: cygnus
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Original-To: Geoffrey Noer <[email-masked]>, [email-masked]
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     This bug still exists in the b18 sources...

______________________________ Reply Separator _________________________________
Subject: Re: Bug in h8300.c
Author:  Geoffrey Noer <[email-masked]> 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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-- 
Geoffrey Noer
[email-masked]
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