Services and Modeling for Embedded Software Development
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8.3.2.  Or1ksimSyncSC Module Class Definition

The new module class, Or1ksimSyncSC is derived from the existing Or1ksimExtSC module class. The header of the base class, Or1ksimExtSC is included and the new class derived from that base class.

#include "Or1ksimExtSC.h"

class Or1ksimSyncSC
  : public Or1ksimExtSC
{
	  

A custom constructor must be defined, but has the same arguments as the base class constructor, to which it will pass its arguments.

The new Or1ksim library call to give the clock rate is wrapped by a public function[7].

  unsigned long int  getClockRate();
	  

The virtual function, doTrans function is reimplemented—it will replace the call to doTrans in the base class to add timing synchronization.

The definition of the Or1ksim ISS wrapper module class with synchronized timing, Or1ksimSyncSC may be found in sys-models/sync-soc/Or1ksimSyncSC.h in the distribution.



[7] The use of unsigned long int reflects the usage in the Or1ksim ISS. The designers do not anticipate usage to model designs in excess of 4GHz!

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