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acc->mem_data(acc_data_in);
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acc->call(acc_call_in);
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acc->read(acc_read);
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acc->write(acc_write);
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acc->addr(acc_addr_out);
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acc->data(acc_data_out);
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}
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int c = 0; //clk counter for printing
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/*
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** FLAG: if the **acc_read** of accelerator is enabled then we know that after 2 clks
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** we will have the memory data on the bus data_out!
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**
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** BRIEF: this flag acknowledge us whether we have to notify the acc_mem_read_ev or not!
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*/
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int notify_flag_read = 0;
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int notify_flag_write = 0;
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void process()
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{
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// testing wires
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test_aluop.write(test_aluOp.read());
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pc.write(test_pc.read());
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cout << "-----------------------------------------------" << endl;
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cout << "\t-___ " << "bus_clk: 0X" <<c++ << " ___-" << endl << endl;
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/*
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** Micro - MEMORY - ACC
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*/
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mem_addr = addr_out.read();
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mem_data_in = data_out.read();
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micro_data_in = data_out.read();
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acc_data_in = data_out.read();
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acc_call_in = call_out.read();
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if (read_out.read() || write_out.read() || call_out.read()){
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if (read_out.read()){
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r_nw = read_out.read();
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data_in = mem_data_out.read();
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}
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else if (write_out.read()){
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r_nw = !(write_out.read());
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}
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}
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////////////////////////HANDLE ACC READ/WRITE////////////////////////
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if (notify_flag_write !=0 && notify_flag_write < 3){
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// increment the flag to get to the intended clk count
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notify_flag_write++;
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return;
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}
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else if (notify_flag_write == 3){
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// the write operation should have been done
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notify_flag_write = 0;
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acc_mem_write_ev.notify();
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return;
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}
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if (notify_flag_read !=0 && notify_flag_read < 4){
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// increment the flag to get to the intended clk count
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notify_flag_read++;
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return;
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}
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else if (notify_flag_read == 4){
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// should we notify accelerator event? (two clocks have passed)
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notify_flag_read = 0;
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acc_mem_read_ev.notify();
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return;
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}
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///////////////////////////////////////////////////////////////////MICRO
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if (micro_read.read() || micro_write.read() || micro_call.read())
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{
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read_in = micro_read.read();
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write_in = micro_write.read();
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call_in = micro_call.read();
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if (micro_read.read()){
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addr_in = micro_addr.read();
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}
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else if (micro_write.read()){
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data_in = micro_data_out.read();
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addr_in = micro_addr.read();
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}
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}
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///////////////////////////////////////////////////////////////////ACC
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if (acc_read.read() || acc_write.read())
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{
|
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