Fixed video, kbd and buzzer

2022-03-31 14:13:34 +03:00
parent 107dded913
commit 61ed88ce64
493 changed files with 633379 additions and 79570 deletions
@@ -0,0 +1,86 @@
+//==============================================================
+// Test ALU state preparation for DAA instruction
+//==============================================================
+`timescale 100 ns/ 100 ns
+
+module test_prep_daa;
+
+// ----------------- INPUT -----------------
+reg [3:0] low_sig;          // Input data bus A (independent)
+reg [3:0] high_sig;         // Input data bus B (independent)
+
+// ----------------- OUTPUT -----------------
+wire low_gt_9_sig;          // low bus > 9
+wire high_gt_9_sig;         // high bus > 9
+wire high_eq_9_sig;         // high bus == 9
+
+// ----------------- TEST -------------------
+`define CHECK \
+   assert(low_gt_9_sig==low_sig>9 && high_gt_9_sig==high_sig>9 && high_eq_9_sig==(high_sig==9));
+
+initial begin
+    low_sig  = 4'h0;
+    high_sig = 4'h0;
+    #1 `CHECK
+    low_sig  = 4'h1;
+    high_sig = 4'h1;
+    #1 `CHECK
+    low_sig  = 4'h2;
+    high_sig = 4'h2;
+    #1 `CHECK
+    low_sig  = 4'h3;
+    high_sig = 4'h3;
+    #1 `CHECK
+    low_sig  = 4'h4;
+    high_sig = 4'h4;
+    #1 `CHECK
+    low_sig  = 4'h5;
+    high_sig = 4'h5;
+    #1 `CHECK
+    low_sig  = 4'h6;
+    high_sig = 4'h6;
+    #1 `CHECK
+    low_sig  = 4'h7;
+    high_sig = 4'h7;
+    #1 `CHECK
+    low_sig  = 4'h8;
+    high_sig = 4'h8;
+    #1 `CHECK
+    low_sig  = 4'h9;
+    high_sig = 4'h9;
+    #1 `CHECK
+    low_sig  = 4'hA;
+    high_sig = 4'hA;
+    #1 `CHECK
+    low_sig  = 4'hB;
+    high_sig = 4'hB;
+    #1 `CHECK
+    low_sig  = 4'hC;
+    high_sig = 4'hC;
+    #1 `CHECK
+    low_sig  = 4'hD;
+    high_sig = 4'hD;
+    #1 `CHECK
+    low_sig  = 4'hE;
+    high_sig = 4'hE;
+    #1 `CHECK
+    low_sig  = 4'hF;
+    high_sig = 4'hF;
+    #1 `CHECK
+
+    #1 $display("End of test");
+end
+
+//--------------------------------------------------------------
+// Instantiate prep-DAA block
+//--------------------------------------------------------------
+alu_prep_daa alu_prep_daa_inst
+(
+    .low(low_sig) ,             // input [3:0] low_sig
+    .high(high_sig) ,           // input [3:0] high_sig
+    .low_gt_9(low_gt_9_sig) ,   // output  low_gt_9_sig
+    .high_eq_9(high_eq_9_sig) , // output  high_eq_9_sig
+    .high_gt_9(high_gt_9_sig)   // output  high_gt_9_sig
+);
+
+endmodule