init

code/vezba2-1/vezba2/v2_build_file.f

@@ -0,0 +1,8 @@
+v2_top.sv
+v2_driver.sv
+v2_memory_if.sv
+v2_tr.sv
+v2_memory_pkg.sv
+v2_memory.sv
+-gui
+-access +rwc

code/vezba2-1/vezba2/v2_driver.sv

@@ -0,0 +1,37 @@
+`ifndef DRIVER_SV
+ `define DRIVER_SV
+
+class driver;
+
+   newTransaction tr;
+
+   virtual memory_if mem_if;
+
+   function new(virtual memory_if mem_if);
+      this.mem_if = mem_if;
+   endfunction : new
+
+   task run();
+      tr = new();
+      drive_transaction(tr);
+      tr.addr = 2'hA;
+      tr.en = 1'b1;
+      drive_transaction(tr);
+      tr.data_i = 8'hAA;
+      tr.rw = 1'b1;
+      drive_transaction(tr);
+   endtask : run
+
+   task drive_transaction(newTransaction tr);
+      $display("Driving transaction:");
+      tr.display_transaction();
+      @(posedge mem_if.clk);
+      mem_if.addr <= tr.addr;
+      mem_if.data_i <= tr.data_i;
+      mem_if.en <= tr.en;
+      mem_if.rw <= tr.rw;
+   endtask : drive_transaction
+
+endclass : driver
+
+`endif

code/vezba2-1/vezba2/v2_memory.sv

@@ -0,0 +1,41 @@
+`ifndef MEMORY_SV
+ `define MEMORY_SV
+
+module memory #(
+                parameter ADDR_WIDTH = 2,
+                parameter DATA_WIDTH = 8
+                )
+   (
+    input logic                     clk,
+    input logic                     rst,
+    input logic [ADDR_WIDTH-1 : 0]  addr_i,
+    input logic                     rw_i,
+    input logic                     en_i,
+    input logic [DATA_WIDTH-1 : 0]  data_i,
+    output logic [DATA_WIDTH-1 : 0] data_o
+    );
+
+   logic [DATA_WIDTH-1 : 0]         mem [2**ADDR_WIDTH];
+
+   always @(posedge clk or posedge rst) begin
+      if(rst) begin
+         for(int i = 0; i < 2**ADDR_WIDTH; i++) begin
+            mem[i] = 0;
+         end
+      end
+      else begin
+         if(en_i) begin
+            if(rw_i) begin
+               mem[addr_i] <= data_i;
+            end
+            else begin
+               data_o <= mem[addr_i];
+            end
+         end
+      end
+   end
+
+endmodule : memory
+
+`endif
+

code/vezba2-1/vezba2/v2_memory_if.sv

@@ -0,0 +1,14 @@
+`ifndef MEMORY_IF_SV
+ `define MEMORY_IF_SV
+
+interface memory_if(input clk, input rst);
+
+   logic [1 : 0]   addr;
+   logic           rw;
+   logic           en;
+   logic [7 : 0]   data_i;
+   logic [7 : 0]   data_o;
+
+endinterface : memory_if
+
+`endif

code/vezba2-1/vezba2/v2_memory_pkg.sv

@@ -0,0 +1,11 @@
+`ifndef MEMORY_PKG_SV
+ `define MEMORY_PKG_SV
+
+package memory_pkg;
+
+ `include "v2_tr.sv"
+ `include "v2_driver.sv"
+
+endpackage : memory_pkg
+
+`endif

code/vezba2-1/vezba2/v2_queue_examples.sv

@@ -0,0 +1,52 @@
+module queue_examples;
+
+   int x = 2;
+   int y = 2;
+
+   int q1[$] = {2, 4, 8};
+   int q2[$] = {2, 4, 8};
+
+   initial begin
+
+      $display("Inicijalno stanje reda q1: %p", q1);
+
+      q1 = {q1, 10};
+      q1 = {3, q1};
+      q1 = {q1[0 : x-1], 5, q1[x : $]};
+      $display("Posle ubacivanja elemenata u q1: %p", q1);
+
+      x = q1[0];
+      $display("x dobija vrednost %0d", x);
+      q1 = q1[1 : $];
+      $display("Posle brisanja elemenata iz q1: %p", q1);
+
+      x = q1[$];
+      $display("x dobija vrednost %0d", x);
+      q1 = q1[0:$-1];
+      $display("Posle brisanja elemenata iz q1: %p", q1);
+
+      q1 = {};
+      $display("Posle brisanja celog reda q1: %p", q1);
+
+      // -------------------------------------------------
+
+      $display("Inicijalno stanje reda q2: %p", q2);
+
+      q2.push_back(10);
+      q2.push_front(3);
+      q2.insert(y, 5);
+      $display("Posle ubacivanja elemenata u q2: %p", q2);
+
+      y = q2.pop_front();
+      $display("y dobija vrednost %0d", y);
+      $display("Posle brisanja elemenata iz q2: %p", q2);
+
+      y = q2.pop_back();
+      $display("y dobija vrednost %0d", y);
+      $display("Posle brisanja elemenata iz q2: %p", q2);
+
+      q2.delete();
+      $display("Posle brisanja celog reda q2: %p", q2);
+   end
+
+endmodule : queue_examples

code/vezba2-1/vezba2/v2_top.sv

@@ -0,0 +1,42 @@
+`ifndef TOP_SV
+`define TOP_SV
+
+`include "v2_memory.sv"
+`include "v2_memory_if.sv"
+`include "v2_memory_pkg.sv"
+
+module top;
+
+   import memory_pkg::*;
+
+   bit clk;
+   bit rst;
+
+   memory_if mem_if(clk, rst);
+
+   memory DUT (
+               .clk    (clk),
+               .rst    (rst),
+               .addr_i (mem_if.addr),
+               .rw_i   (mem_if.rw),
+               .en_i   (mem_if.en),
+               .data_i (mem_if.data_i),
+               .data_o (mem_if.data_o)
+               );
+
+   driver drv = new(mem_if);
+
+   initial begin
+      clk = 0;
+      rst = 1;
+      #5 rst =0;
+      #500 $finish();
+   end
+
+   always #5 clk = ~clk;
+
+   initial drv.run();
+
+endmodule : top
+
+`endif

code/vezba2-1/vezba2/v2_tr.sv

@@ -0,0 +1,31 @@
+`ifndef TRANSACTION_SV
+ `define TRANSACTION_SV
+
+class transaction;
+
+   bit [1 : 0] addr;
+   bit [7 : 0] data_i;
+
+   function void display_transaction();
+      $display("\taddr = %0h", this.addr);
+      $display("\tdata_i = %0h", this.data_i);
+   endfunction : display_transaction
+
+endclass : transaction
+
+class newTransaction extends transaction;
+
+   bit [7 : 0] data_o;
+   bit         rw;
+   bit         en;
+
+   function void display_transaction();
+      super.display_transaction();
+      $display("\tdata_o = %0h", this.data_o);
+      $display("\trw = %0h", this.rw);
+      $display("\ten = %0h", this.en);
+   endfunction : display_transaction
+
+endclass : newTransaction
+
+`endif