TLM Modelling: Adding Approximate Timing Annotations

The naive way to add approximate timing annotations is to block the SystemC kernel in a transaction until the required time has elapsed:

   sc_time clock_period  = sc_time(5, SC_NS);  // 200 MHz clock

   int b_mem_read(A)
   { 
     int r = 0;
     if (A < 0 or A >= SIZE) error(....);
     else r = MEM[A];
     wait(clock_period * 3);   // <-- Directly model memory access time: three cycles say.
     return r;
   }