Re: [Gems-users] Magic Instructions

[Greg Byrd <gbyrd@xxxxxxxx>]

But this would break on ANY magic instruction, correct?  Because you're 
ignoring the argument.  Maybe that's what you want, but you're giving up 
a lot of flexibility in general.  (This is what I do, as well, but I 
have separate magic instructions to clear Ruby stats, dump Ruby stats, etc.)
...gb


Marco Tirado wrote:
> We had the same problem when doing simulations with solaris 9. The 
> simulation did not stop even when using the MAGIC BREAKPOINT macro 
> directly. We solved it by defining a hap callback where we simply stop 
> SIMICS, we used the MAGIC BREAKPOINT macro directly and the hap 
> callback definition in our script looks like this.
>  
>
> @def hap_callback(user_arg, cpu, arg):
>
>         SIM_break_simulation("MAGIC Breakpoint")
>
> @SIM_hap_add_callback("Core_Magic_Instruction", hap_callback, None)
>
> Hope this helps.
>
> Marco
>
>
>
>  
> On 9/14/06, *Dan Gibson* <degibson@xxxxxxxx 
> <mailto:degibson@xxxxxxxx>> wrote:
>     Try the following code. It uses 0x40000 explicitly (4<<16):
>
>     #define MAGIC_BREAK do {                                   \
>            __asm__ __volatile__ ("sethi 0x40000, %g0");     \
>     } while (0);
>
>
>
>     Daniele Bordes wrote:
>     > Are you sure it is MAGIC(0x4000) and not MAGIC(0x40000)? Because I
>     > tried to use MAGIC_BREAKPOINT in my code and it doesn't work, and I
>     > noticed that according to macro definition in
>     magic_instruction.h, it
>     > is substituted with
>     > MAGIC(0x40000) and not with MAGIC(0x4000) ...
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