Initial commit of OpenSPARC T2 design and verification files.

[OpenSPARC-T2-DV] / verif / env / fnx / vlib / CSRFmwork / src / CSRState.vr

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// 
// OpenSPARC T2 Processor File: CSRState.vr
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#include <vera_defines.vrh>
#include "general_csr_defines.vri"

class CSRState {

  //This semaphore has to live here since it is shared by aliased registers.
  integer	    csr_write_trans_sem;

  local bit [CSRT_DATA_WIDTH-1:0]  State = ZEROS;

  task new () {

    csr_write_trans_sem	= alloc(SEMAPHORE,0,1,1);

    if (csr_write_trans_sem == 0)
      error("CSRState:: Out of semaphore space.\nIncrease default number of semaphores or consider using RAM Semantics for large register arrays\n");
  }

  function bit [CSRT_DATA_WIDTH-1:0] GetState() {
    GetState = State;
  }

  task SetState(bit [CSRT_DATA_WIDTH-1:0] NextState) {
    State = NextState;
  }
}