From 5603595e5c0efd2afc9ba810e6e5992e5d81d44c Mon Sep 17 00:00:00 2001
From: Miodrag Milanovic <mmicko@gmail.com>
Date: Fri, 18 Oct 2019 12:19:59 +0200
Subject: Share common tests

---
 tests/arch/common/add_sub.v | 13 +++++++++
 tests/arch/common/adffs.v   | 47 ++++++++++++++++++++++++++++++++
 tests/arch/common/counter.v | 17 ++++++++++++
 tests/arch/common/dffs.v    | 15 +++++++++++
 tests/arch/common/fsm.v     | 55 ++++++++++++++++++++++++++++++++++++++
 tests/arch/common/latches.v | 24 +++++++++++++++++
 tests/arch/common/logic.v   | 18 +++++++++++++
 tests/arch/common/mul.v     | 11 ++++++++
 tests/arch/common/mux.v     | 65 +++++++++++++++++++++++++++++++++++++++++++++
 tests/arch/common/shifter.v | 16 +++++++++++
 tests/arch/common/tribuf.v  |  8 ++++++
 11 files changed, 289 insertions(+)
 create mode 100644 tests/arch/common/add_sub.v
 create mode 100644 tests/arch/common/adffs.v
 create mode 100644 tests/arch/common/counter.v
 create mode 100644 tests/arch/common/dffs.v
 create mode 100644 tests/arch/common/fsm.v
 create mode 100644 tests/arch/common/latches.v
 create mode 100644 tests/arch/common/logic.v
 create mode 100644 tests/arch/common/mul.v
 create mode 100644 tests/arch/common/mux.v
 create mode 100644 tests/arch/common/shifter.v
 create mode 100644 tests/arch/common/tribuf.v

(limited to 'tests/arch/common')

diff --git a/tests/arch/common/add_sub.v b/tests/arch/common/add_sub.v
new file mode 100644
index 000000000..177c32e30
--- /dev/null
+++ b/tests/arch/common/add_sub.v
@@ -0,0 +1,13 @@
+module top
+(
+ input [3:0] x,
+ input [3:0] y,
+
+ output [3:0] A,
+ output [3:0] B
+ );
+
+assign A =  x + y;
+assign B =  x - y;
+
+endmodule
diff --git a/tests/arch/common/adffs.v b/tests/arch/common/adffs.v
new file mode 100644
index 000000000..223b52d21
--- /dev/null
+++ b/tests/arch/common/adffs.v
@@ -0,0 +1,47 @@
+module adff
+    ( input d, clk, clr, output reg q );
+    initial begin
+      q = 0;
+    end
+	always @( posedge clk, posedge clr )
+		if ( clr )
+			q <= 1'b0;
+		else
+            q <= d;
+endmodule
+
+module adffn
+    ( input d, clk, clr, output reg q );
+    initial begin
+      q = 0;
+    end
+	always @( posedge clk, negedge clr )
+		if ( !clr )
+			q <= 1'b0;
+		else
+            q <= d;
+endmodule
+
+module dffs
+    ( input d, clk, pre, clr, output reg q );
+    initial begin
+      q = 0;
+    end
+	always @( posedge clk )
+		if ( pre )
+			q <= 1'b1;
+		else
+            q <= d;
+endmodule
+
+module ndffnr
+    ( input d, clk, pre, clr, output reg q );
+    initial begin
+      q = 0;
+    end
+	always @( negedge clk )
+		if ( !clr )
+			q <= 1'b0;
+		else
+            q <= d;
+endmodule
diff --git a/tests/arch/common/counter.v b/tests/arch/common/counter.v
new file mode 100644
index 000000000..52852f8ac
--- /dev/null
+++ b/tests/arch/common/counter.v
@@ -0,0 +1,17 @@
+module top    (
+out,
+clk,
+reset
+);
+    output [7:0] out;
+    input clk, reset;
+    reg [7:0] out;
+
+    always @(posedge clk, posedge reset)
+		if (reset) begin
+			out <= 8'b0 ;
+		end else
+			out <= out + 1;
+
+
+endmodule
diff --git a/tests/arch/common/dffs.v b/tests/arch/common/dffs.v
new file mode 100644
index 000000000..3418787c9
--- /dev/null
+++ b/tests/arch/common/dffs.v
@@ -0,0 +1,15 @@
+module dff
+    ( input d, clk, output reg q );
+	always @( posedge clk )
+            q <= d;
+endmodule
+
+module dffe
+    ( input d, clk, en, output reg q );
+    initial begin
+      q = 0;
+    end
+	always @( posedge clk )
+		if ( en )
+			q <= d;
+endmodule
diff --git a/tests/arch/common/fsm.v b/tests/arch/common/fsm.v
new file mode 100644
index 000000000..368fbaace
--- /dev/null
+++ b/tests/arch/common/fsm.v
@@ -0,0 +1,55 @@
+ module fsm (
+ clock,
+ reset,
+ req_0,
+ req_1,
+ gnt_0,
+ gnt_1
+ );
+ input   clock,reset,req_0,req_1;
+ output  gnt_0,gnt_1;
+ wire    clock,reset,req_0,req_1;
+ reg     gnt_0,gnt_1;
+
+ parameter SIZE = 3           ;
+ parameter IDLE  = 3'b001,GNT0 = 3'b010,GNT1 = 3'b100,GNT2 = 3'b101 ;
+
+ reg [SIZE-1:0] state;
+ reg [SIZE-1:0] next_state;
+
+ always @ (posedge clock)
+ begin : FSM
+ if (reset == 1'b1) begin
+   state <=  #1  IDLE;
+   gnt_0 <= 0;
+   gnt_1 <= 0;
+ end else
+  case(state)
+    IDLE : if (req_0 == 1'b1) begin
+                 state <=  #1  GNT0;
+                 gnt_0 <= 1;
+               end else if (req_1 == 1'b1) begin
+                 gnt_1 <= 1;
+                 state <=  #1  GNT0;
+               end else begin
+                 state <=  #1  IDLE;
+               end
+    GNT0 : if (req_0 == 1'b1) begin
+                 state <=  #1  GNT0;
+               end else begin
+                 gnt_0 <= 0;
+                 state <=  #1  IDLE;
+               end
+    GNT1 : if (req_1 == 1'b1) begin
+                 state <=  #1  GNT2;
+				 gnt_1 <= req_0;
+               end
+    GNT2 : if (req_0 == 1'b1) begin
+                 state <=  #1  GNT1;
+				 gnt_1 <= req_1;
+               end
+    default : state <=  #1  IDLE;
+ endcase
+ end
+
+endmodule
diff --git a/tests/arch/common/latches.v b/tests/arch/common/latches.v
new file mode 100644
index 000000000..adb5d5319
--- /dev/null
+++ b/tests/arch/common/latches.v
@@ -0,0 +1,24 @@
+module latchp
+    ( input d, clk, en, output reg q );
+	always @*
+		if ( en )
+			q <= d;
+endmodule
+
+module latchn
+    ( input d, clk, en, output reg q );
+	always @*
+		if ( !en )
+			q <= d;
+endmodule
+
+module latchsr
+    ( input d, clk, en, clr, pre, output reg q );
+	always @*
+		if ( clr )
+			q <= 1'b0;
+		else if ( pre )
+			q <= 1'b1;
+		else if ( en )
+			q <= d;
+endmodule
diff --git a/tests/arch/common/logic.v b/tests/arch/common/logic.v
new file mode 100644
index 000000000..e5343cae0
--- /dev/null
+++ b/tests/arch/common/logic.v
@@ -0,0 +1,18 @@
+module top
+(
+ input [0:7] in,
+ output B1,B2,B3,B4,B5,B6,B7,B8,B9,B10
+ );
+
+   assign     B1 =  in[0] & in[1];
+   assign     B2 =  in[0] | in[1];
+   assign     B3 =  in[0] ~& in[1];
+   assign     B4 =  in[0] ~| in[1];
+   assign     B5 =  in[0] ^ in[1];
+   assign     B6 =  in[0] ~^ in[1];
+   assign     B7 =  ~in[0];
+   assign     B8 =  in[0];
+   assign     B9 =  in[0:1] && in [2:3];
+   assign     B10 =  in[0:1] || in [2:3];
+
+endmodule
diff --git a/tests/arch/common/mul.v b/tests/arch/common/mul.v
new file mode 100644
index 000000000..d5b48b1d7
--- /dev/null
+++ b/tests/arch/common/mul.v
@@ -0,0 +1,11 @@
+module top
+(
+ input [5:0] x,
+ input [5:0] y,
+
+ output [11:0] A,
+ );
+
+assign A =  x * y;
+
+endmodule
diff --git a/tests/arch/common/mux.v b/tests/arch/common/mux.v
new file mode 100644
index 000000000..27bc0bf0b
--- /dev/null
+++ b/tests/arch/common/mux.v
@@ -0,0 +1,65 @@
+module mux2 (S,A,B,Y);
+    input S;
+    input A,B;
+    output reg Y;
+
+    always @(*)
+		Y = (S)? B : A;
+endmodule
+
+module mux4 ( S, D, Y );
+
+input[1:0] S;
+input[3:0] D;
+output Y;
+
+reg Y;
+wire[1:0] S;
+wire[3:0] D;
+
+always @*
+begin
+    case( S )
+       0 : Y = D[0];
+       1 : Y = D[1];
+       2 : Y = D[2];
+       3 : Y = D[3];
+   endcase
+end
+
+endmodule
+
+module mux8 ( S, D, Y );
+
+input[2:0] S;
+input[7:0] D;
+output Y;
+
+reg Y;
+wire[2:0] S;
+wire[7:0] D;
+
+always @*
+begin
+   case( S )
+       0 : Y = D[0];
+       1 : Y = D[1];
+       2 : Y = D[2];
+       3 : Y = D[3];
+       4 : Y = D[4];
+       5 : Y = D[5];
+       6 : Y = D[6];
+       7 : Y = D[7];
+   endcase
+end
+
+endmodule
+
+module mux16 (D, S, Y);
+ 	input  [15:0] D;
+ 	input  [3:0] S;
+ 	output Y;
+
+assign Y = D[S];
+
+endmodule
diff --git a/tests/arch/common/shifter.v b/tests/arch/common/shifter.v
new file mode 100644
index 000000000..04ae49d83
--- /dev/null
+++ b/tests/arch/common/shifter.v
@@ -0,0 +1,16 @@
+module top    (
+out,
+clk,
+in
+);
+    output [7:0] out;
+    input signed clk, in;
+    reg signed [7:0] out = 0;
+
+    always @(posedge clk)
+	begin
+		out    <= out >> 1;
+		out[7] <= in;
+	end
+
+endmodule
diff --git a/tests/arch/common/tribuf.v b/tests/arch/common/tribuf.v
new file mode 100644
index 000000000..c64468253
--- /dev/null
+++ b/tests/arch/common/tribuf.v
@@ -0,0 +1,8 @@
+module tristate (en, i, o);
+    input en;
+    input i;
+    output reg o;
+    
+    always @(en or i)
+		o <= (en)? i : 1'bZ;
+endmodule
-- 
cgit v1.2.3


From 12383f37b2e1d72784e01db0431efc8882f25430 Mon Sep 17 00:00:00 2001
From: Miodrag Milanovic <mmicko@gmail.com>
Date: Fri, 18 Oct 2019 12:33:35 +0200
Subject: Common memory test now shared

---
 tests/arch/common/memory.v | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 tests/arch/common/memory.v

(limited to 'tests/arch/common')

diff --git a/tests/arch/common/memory.v b/tests/arch/common/memory.v
new file mode 100644
index 000000000..cb7753f7b
--- /dev/null
+++ b/tests/arch/common/memory.v
@@ -0,0 +1,21 @@
+module top
+(
+	input [7:0] data_a,
+	input [6:1] addr_a,
+	input we_a, clk,
+	output reg [7:0] q_a
+);
+	// Declare the RAM variable
+	reg [7:0] ram[63:0];
+
+	// Port A
+	always @ (posedge clk)
+	begin
+		if (we_a)
+		begin
+			ram[addr_a] <= data_a;
+			q_a <= data_a;
+		end
+		q_a <= ram[addr_a];
+	end
+endmodule
-- 
cgit v1.2.3


From 9bd9db56c8ef8ca413f97086fd53609c50df343b Mon Sep 17 00:00:00 2001
From: Miodrag Milanovic <mmicko@gmail.com>
Date: Fri, 18 Oct 2019 12:50:24 +0200
Subject: Unify verilog style

---
 tests/arch/common/add_sub.v | 15 ++++---
 tests/arch/common/adffs.v   | 54 ++++++++++++-------------
 tests/arch/common/counter.v | 16 +++-----
 tests/arch/common/dffs.v    | 18 ++++-----
 tests/arch/common/fsm.v     | 98 ++++++++++++++++++++++-----------------------
 tests/arch/common/latches.v |  9 ++---
 tests/arch/common/logic.v   | 28 ++++++-------
 tests/arch/common/mul.v     | 12 +++---
 tests/arch/common/mux.v     | 83 ++++++++++++++++++--------------------
 tests/arch/common/shifter.v |  9 +----
 tests/arch/common/tribuf.v  |  6 +--
 11 files changed, 157 insertions(+), 191 deletions(-)

(limited to 'tests/arch/common')

diff --git a/tests/arch/common/add_sub.v b/tests/arch/common/add_sub.v
index 177c32e30..77e5f5745 100644
--- a/tests/arch/common/add_sub.v
+++ b/tests/arch/common/add_sub.v
@@ -1,13 +1,12 @@
 module top
 (
- input [3:0] x,
- input [3:0] y,
+    input [3:0] x,
+    input [3:0] y,
 
- output [3:0] A,
- output [3:0] B
- );
-
-assign A =  x + y;
-assign B =  x - y;
+    output [3:0] A,
+    output [3:0] B
+);
 
+    assign A =  x + y;
+    assign B =  x - y;
 endmodule
diff --git a/tests/arch/common/adffs.v b/tests/arch/common/adffs.v
index 223b52d21..576bd81a6 100644
--- a/tests/arch/common/adffs.v
+++ b/tests/arch/common/adffs.v
@@ -1,47 +1,43 @@
-module adff
-    ( input d, clk, clr, output reg q );
+module adff( input d, clk, clr, output reg q );
     initial begin
-      q = 0;
+        q = 0;
     end
-	always @( posedge clk, posedge clr )
-		if ( clr )
-			q <= 1'b0;
-		else
-            q <= d;
+	  always @( posedge clk, posedge clr )
+      if ( clr )
+        q <= 1'b0;
+      else
+        q <= d;
 endmodule
 
-module adffn
-    ( input d, clk, clr, output reg q );
+module adffn( input d, clk, clr, output reg q );
     initial begin
       q = 0;
     end
-	always @( posedge clk, negedge clr )
-		if ( !clr )
-			q <= 1'b0;
-		else
-            q <= d;
+	  always @( posedge clk, negedge clr )
+		  if ( !clr )
+			  q <= 1'b0;
+  		else
+        q <= d;
 endmodule
 
-module dffs
-    ( input d, clk, pre, clr, output reg q );
+module dffs( input d, clk, pre, clr, output reg q );
     initial begin
       q = 0;
     end
-	always @( posedge clk )
-		if ( pre )
-			q <= 1'b1;
-		else
-            q <= d;
+    always @( posedge clk )
+      if ( pre )
+        q <= 1'b1;
+      else
+        q <= d;
 endmodule
 
-module ndffnr
-    ( input d, clk, pre, clr, output reg q );
+module ndffnr( input d, clk, pre, clr, output reg q );
     initial begin
       q = 0;
     end
-	always @( negedge clk )
-		if ( !clr )
-			q <= 1'b0;
-		else
-            q <= d;
+    always @( negedge clk )
+      if ( !clr )
+        q <= 1'b0;
+      else
+        q <= d;
 endmodule
diff --git a/tests/arch/common/counter.v b/tests/arch/common/counter.v
index 52852f8ac..97604d3d8 100644
--- a/tests/arch/common/counter.v
+++ b/tests/arch/common/counter.v
@@ -1,17 +1,11 @@
-module top    (
-out,
-clk,
-reset
-);
+module top ( out, clk, reset );
     output [7:0] out;
     input clk, reset;
     reg [7:0] out;
 
     always @(posedge clk, posedge reset)
-		if (reset) begin
-			out <= 8'b0 ;
-		end else
-			out <= out + 1;
-
-
+      if (reset)
+          out <= 8'b0;
+      end
+          out <= out + 1;
 endmodule
diff --git a/tests/arch/common/dffs.v b/tests/arch/common/dffs.v
index 3418787c9..636252d16 100644
--- a/tests/arch/common/dffs.v
+++ b/tests/arch/common/dffs.v
@@ -1,15 +1,13 @@
-module dff
-    ( input d, clk, output reg q );
-	always @( posedge clk )
-            q <= d;
+module dff ( input d, clk, output reg q );
+	  always @( posedge clk )
+        q <= d;
 endmodule
 
-module dffe
-    ( input d, clk, en, output reg q );
+module dffe( input d, clk, en, output reg q );
     initial begin
-      q = 0;
+        q = 0;
     end
-	always @( posedge clk )
-		if ( en )
-			q <= d;
+	  always @( posedge clk )
+        if ( en )
+              q <= d;
 endmodule
diff --git a/tests/arch/common/fsm.v b/tests/arch/common/fsm.v
index 368fbaace..9d3fbb64a 100644
--- a/tests/arch/common/fsm.v
+++ b/tests/arch/common/fsm.v
@@ -1,55 +1,51 @@
- module fsm (
- clock,
- reset,
- req_0,
- req_1,
- gnt_0,
- gnt_1
- );
- input   clock,reset,req_0,req_1;
- output  gnt_0,gnt_1;
- wire    clock,reset,req_0,req_1;
- reg     gnt_0,gnt_1;
+ module fsm ( clock, reset, req_0, req_1, gnt_0, gnt_1 );
+    input   clock,reset,req_0,req_1;
+    output  gnt_0,gnt_1;
+    wire    clock,reset,req_0,req_1;
+    reg     gnt_0,gnt_1;
 
- parameter SIZE = 3           ;
- parameter IDLE  = 3'b001,GNT0 = 3'b010,GNT1 = 3'b100,GNT2 = 3'b101 ;
+    parameter SIZE = 3;
+    parameter IDLE = 3'b001;
+    parameter GNT0 = 3'b010;
+    parameter GNT1 = 3'b100;
+    parameter GNT2 = 3'b101;
 
- reg [SIZE-1:0] state;
- reg [SIZE-1:0] next_state;
-
- always @ (posedge clock)
- begin : FSM
- if (reset == 1'b1) begin
-   state <=  #1  IDLE;
-   gnt_0 <= 0;
-   gnt_1 <= 0;
- end else
-  case(state)
-    IDLE : if (req_0 == 1'b1) begin
-                 state <=  #1  GNT0;
-                 gnt_0 <= 1;
-               end else if (req_1 == 1'b1) begin
-                 gnt_1 <= 1;
-                 state <=  #1  GNT0;
-               end else begin
-                 state <=  #1  IDLE;
-               end
-    GNT0 : if (req_0 == 1'b1) begin
-                 state <=  #1  GNT0;
-               end else begin
-                 gnt_0 <= 0;
-                 state <=  #1  IDLE;
-               end
-    GNT1 : if (req_1 == 1'b1) begin
-                 state <=  #1  GNT2;
-				 gnt_1 <= req_0;
-               end
-    GNT2 : if (req_0 == 1'b1) begin
-                 state <=  #1  GNT1;
-				 gnt_1 <= req_1;
-               end
-    default : state <=  #1  IDLE;
- endcase
- end
+    reg [SIZE-1:0] state;
+    reg [SIZE-1:0] next_state;
 
+    always @ (posedge clock)
+        begin : FSM
+          if (reset == 1'b1) begin
+            state <=  #1  IDLE;
+            gnt_0 <= 0;
+            gnt_1 <= 0;
+          end 
+          else
+            case(state)
+              IDLE :  if (req_0 == 1'b1) begin
+                          state <=  #1  GNT0;
+                          gnt_0 <= 1;
+                      end else if (req_1 == 1'b1) begin
+                          gnt_1 <= 1;
+                          state <=  #1  GNT0;
+                      end else begin
+                          state <=  #1  IDLE;
+                      end
+              GNT0 :  if (req_0 == 1'b1) begin
+                          state <=  #1  GNT0;
+                      end else begin
+                          gnt_0 <= 0;
+                          state <=  #1  IDLE;
+                      end
+              GNT1 :  if (req_1 == 1'b1) begin
+                          state <=  #1  GNT2;
+                          gnt_1 <= req_0;
+                      end
+              GNT2 :  if (req_0 == 1'b1) begin
+                          state <=  #1  GNT1;
+                          gnt_1 <= req_1;
+                      end
+              default : state <=  #1  IDLE;
+            endcase
+        end
 endmodule
diff --git a/tests/arch/common/latches.v b/tests/arch/common/latches.v
index adb5d5319..60b757103 100644
--- a/tests/arch/common/latches.v
+++ b/tests/arch/common/latches.v
@@ -1,19 +1,16 @@
-module latchp
-    ( input d, clk, en, output reg q );
+module latchp ( input d, clk, en, output reg q );
 	always @*
 		if ( en )
 			q <= d;
 endmodule
 
-module latchn
-    ( input d, clk, en, output reg q );
+module latchn ( input d, clk, en, output reg q );
 	always @*
 		if ( !en )
 			q <= d;
 endmodule
 
-module latchsr
-    ( input d, clk, en, clr, pre, output reg q );
+module latchsr ( input d, clk, en, clr, pre, output reg q );
 	always @*
 		if ( clr )
 			q <= 1'b0;
diff --git a/tests/arch/common/logic.v b/tests/arch/common/logic.v
index e5343cae0..c17899fa0 100644
--- a/tests/arch/common/logic.v
+++ b/tests/arch/common/logic.v
@@ -1,18 +1,16 @@
 module top
 (
- input [0:7] in,
- output B1,B2,B3,B4,B5,B6,B7,B8,B9,B10
- );
-
-   assign     B1 =  in[0] & in[1];
-   assign     B2 =  in[0] | in[1];
-   assign     B3 =  in[0] ~& in[1];
-   assign     B4 =  in[0] ~| in[1];
-   assign     B5 =  in[0] ^ in[1];
-   assign     B6 =  in[0] ~^ in[1];
-   assign     B7 =  ~in[0];
-   assign     B8 =  in[0];
-   assign     B9 =  in[0:1] && in [2:3];
-   assign     B10 =  in[0:1] || in [2:3];
-
+    input [0:7] in,
+    output B1,B2,B3,B4,B5,B6,B7,B8,B9,B10
+);
+    assign B1 =  in[0] & in[1];
+    assign B2 =  in[0] | in[1];
+    assign B3 =  in[0] ~& in[1];
+    assign B4 =  in[0] ~| in[1];
+    assign B5 =  in[0] ^ in[1];
+    assign B6 =  in[0] ~^ in[1];
+    assign B7 =  ~in[0];
+    assign B8 =  in[0];
+    assign B9 =  in[0:1] && in [2:3];
+    assign B10 =  in[0:1] || in [2:3];
 endmodule
diff --git a/tests/arch/common/mul.v b/tests/arch/common/mul.v
index d5b48b1d7..437a91cfc 100644
--- a/tests/arch/common/mul.v
+++ b/tests/arch/common/mul.v
@@ -1,11 +1,9 @@
 module top
 (
- input [5:0] x,
- input [5:0] y,
-
- output [11:0] A,
- );
-
-assign A =  x * y;
+    input [5:0] x,
+    input [5:0] y,
 
+    output [11:0] A,
+);
+    assign A =  x * y;
 endmodule
diff --git a/tests/arch/common/mux.v b/tests/arch/common/mux.v
index 27bc0bf0b..71c1ac7f2 100644
--- a/tests/arch/common/mux.v
+++ b/tests/arch/common/mux.v
@@ -8,51 +8,47 @@ module mux2 (S,A,B,Y);
 endmodule
 
 module mux4 ( S, D, Y );
-
-input[1:0] S;
-input[3:0] D;
-output Y;
-
-reg Y;
-wire[1:0] S;
-wire[3:0] D;
-
-always @*
-begin
-    case( S )
-       0 : Y = D[0];
-       1 : Y = D[1];
-       2 : Y = D[2];
-       3 : Y = D[3];
-   endcase
-end
-
+    input[1:0] S;
+    input[3:0] D;
+    output Y;
+
+    reg Y;
+    wire[1:0] S;
+    wire[3:0] D;
+
+    always @*
+    begin
+        case( S )
+            0 : Y = D[0];
+            1 : Y = D[1];
+            2 : Y = D[2];
+            3 : Y = D[3];
+        endcase
+    end
 endmodule
 
 module mux8 ( S, D, Y );
-
-input[2:0] S;
-input[7:0] D;
-output Y;
-
-reg Y;
-wire[2:0] S;
-wire[7:0] D;
-
-always @*
-begin
-   case( S )
-       0 : Y = D[0];
-       1 : Y = D[1];
-       2 : Y = D[2];
-       3 : Y = D[3];
-       4 : Y = D[4];
-       5 : Y = D[5];
-       6 : Y = D[6];
-       7 : Y = D[7];
-   endcase
-end
-
+    input[2:0] S;
+    input[7:0] D;
+    output Y;
+
+    reg Y;
+    wire[2:0] S;
+    wire[7:0] D;
+
+    always @*
+    begin
+        case( S )
+            0 : Y = D[0];
+            1 : Y = D[1];
+            2 : Y = D[2];
+            3 : Y = D[3];
+            4 : Y = D[4];
+            5 : Y = D[5];
+            6 : Y = D[6];
+            7 : Y = D[7];
+        endcase
+    end
 endmodule
 
 module mux16 (D, S, Y);
@@ -60,6 +56,5 @@ module mux16 (D, S, Y);
  	input  [3:0] S;
  	output Y;
 
-assign Y = D[S];
-
+    assign Y = D[S];
 endmodule
diff --git a/tests/arch/common/shifter.v b/tests/arch/common/shifter.v
index 04ae49d83..cace3b588 100644
--- a/tests/arch/common/shifter.v
+++ b/tests/arch/common/shifter.v
@@ -1,8 +1,4 @@
-module top    (
-out,
-clk,
-in
-);
+module top(out, clk, in);
     output [7:0] out;
     input signed clk, in;
     reg signed [7:0] out = 0;
@@ -11,6 +7,5 @@ in
 	begin
 		out    <= out >> 1;
 		out[7] <= in;
-	end
-
+	end    
 endmodule
diff --git a/tests/arch/common/tribuf.v b/tests/arch/common/tribuf.v
index c64468253..e1d701611 100644
--- a/tests/arch/common/tribuf.v
+++ b/tests/arch/common/tribuf.v
@@ -1,8 +1,8 @@
-module tristate (en, i, o);
+module tristate(en, i, o);
     input en;
     input i;
     output reg o;
-    
+
     always @(en or i)
-		o <= (en)? i : 1'bZ;
+        o <= (en)? i : 1'bZ;
 endmodule
-- 
cgit v1.2.3


From 190b40341abd73ab5edf0e6740b6526e9575253b Mon Sep 17 00:00:00 2001
From: Miodrag Milanovic <mmicko@gmail.com>
Date: Fri, 18 Oct 2019 13:15:36 +0200
Subject: fixed error

---
 tests/arch/common/counter.v | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'tests/arch/common')

diff --git a/tests/arch/common/counter.v b/tests/arch/common/counter.v
index 97604d3d8..9746fd701 100644
--- a/tests/arch/common/counter.v
+++ b/tests/arch/common/counter.v
@@ -6,6 +6,6 @@ module top ( out, clk, reset );
     always @(posedge clk, posedge reset)
       if (reset)
           out <= 8'b0;
-      end
+      else
           out <= out + 1;
 endmodule
-- 
cgit v1.2.3