Re: [Qemu-devel] small correction

[Fabrice Bellard]

This is not a bug. It is an optimisation to have 16 byte alignment for 
faster array accesses.

Fabrice.

Jani Monoses wrote:
> io_mem_read and io_mem_write's second dimension is 3 not 4 since there are 3
> functions - byte,word,dword.
>
> Jani
>
>
> ------------------------------------------------------------------------
>
> Index: exec-all.h
> ===================================================================
> RCS file: /cvsroot/qemu/qemu/exec-all.h,v
> retrieving revision 1.21
> diff -u -r1.21 exec-all.h
> --- exec-all.h  10 Jul 2004 15:15:39 -0000      1.21
> +++ exec-all.h  20 Jul 2004 10:47:37 -0000
> @@ -382,8 +382,8 @@
>  
>  #endif
>  
> -extern CPUWriteMemoryFunc *io_mem_write[IO_MEM_NB_ENTRIES][4];
> -extern CPUReadMemoryFunc *io_mem_read[IO_MEM_NB_ENTRIES][4];
> +extern CPUWriteMemoryFunc *io_mem_write[IO_MEM_NB_ENTRIES][3];
> +extern CPUReadMemoryFunc *io_mem_read[IO_MEM_NB_ENTRIES][3];
>  extern void *io_mem_opaque[IO_MEM_NB_ENTRIES];
>  
>  #ifdef __powerpc__
> Index: exec.c
> ===================================================================
> RCS file: /cvsroot/qemu/qemu/exec.c,v
> retrieving revision 1.44
> diff -u -r1.44 exec.c
> --- exec.c      5 Jul 2004 21:25:10 -0000       1.44
> +++ exec.c      20 Jul 2004 10:47:39 -0000
> @@ -115,8 +115,8 @@
>  #endif
>  
>  /* io memory support */
> -CPUWriteMemoryFunc *io_mem_write[IO_MEM_NB_ENTRIES][4];
> -CPUReadMemoryFunc *io_mem_read[IO_MEM_NB_ENTRIES][4];
> +CPUWriteMemoryFunc *io_mem_write[IO_MEM_NB_ENTRIES][3];
> +CPUReadMemoryFunc *io_mem_read[IO_MEM_NB_ENTRIES][3];
>  void *io_mem_opaque[IO_MEM_NB_ENTRIES];
>  static int io_mem_nb;
>  
>
>
> ------------------------------------------------------------------------
>
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