Initial commit

2025-11-06 09:35:54 +08:00
commit 07678f510c
93 changed files with 3443 additions and 0 deletions
--- a/Experiments/Shared/ALU.v
+++ b/Experiments/Shared/ALU.v
@@ -0,0 +1,31 @@
+module ALU(
+    input  [31:0] a,
+    input  [31:0] b,
+    input  [2:0]  AluCtrl,
+    output reg [31:0]  AddResult,
+    output reg         Zero
+);
+    parameter ADD  = 3'b000;
+    parameter SUB  = 3'b001;
+    parameter AND  = 3'b010;
+    parameter OR   = 3'b011;
+    parameter NOR  = 3'b100;
+    parameter SLT  = 3'b101;
+    parameter SLTU = 3'b110;
+    parameter PASSB= 3'b111;
+
+    always @(*) begin
+        case (AluCtrl)
+            ADD:  AddResult = a + b;
+            SUB:  AddResult = a - b;
+            AND:  AddResult = a & b;
+            OR:   AddResult = a | b;
+            NOR:  AddResult = ~(a | b);
+            SLT:  AddResult = ($signed(a) < $signed(b)) ? 32'd1 : 32'd0;
+            SLTU: AddResult = (a < b) ? 32'd1 : 32'd0;
+            PASSB:AddResult = b;
+            default: AddResult = 32'hxxxxxxxx;
+        endcase
+        Zero = (AddResult == 32'd0);
+    end
+endmodule