Hi All:
I am planning to modify ruby so that it could handle nested exception
in a transaction. To do that, I need to be able to monitor the TL
register in the MMU. So, after a quick read of the SIMICS reference
manual, it seems MMU_Register_Write is perfect hap call back for me. I
then want to replace the Core_Exception and Core_Exception_Return haps
registered in $GEMS/ruby/module/ruby.c with MMU_Register_Write hap, but
the MMU_Register_Write hap takes a third parameter which is the
register_index, which I could get by calling
SIM_get_register_number(cpu_obj,
"tl").
The problem is cpu_obj is not a per cpu variable, so should I actually
call the method in $GEMS/ruby/module/ruby.c or somewhere else? Am I on
the right track here?
Regards
James
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