Add ALU stage and hook it up. It sort of works.

1 files changed, 27 insertions, 35 deletions

diff --git a/decoder_stage.v b/decoder_stage.v
index 18ed195..aad5f56 100644
--- a/decoder_stage.v
+++ b/decoder_stage.v
@@ -3,27 +3,11 @@ module decoder_stage (
 	input en,
 
 	input [15:0] instr_in,
+	input [15:0] pc_in,
 	
-	output reg [3:0] aluOp_out,
-	output reg [2:0] aluReg1_out,
-	output reg [2:0] aluReg2_out,
-	output reg [1:0] aluOpSource1_out,		// ALU first operand: 0 = reg, 1 = memory read, 2 = imm8, 3 = PC
-	output reg [1:0] aluOpSource2_out,		// ALU second operand: 0 = reg, 1 = ~reg, 2 = PC, 3 = ???
-	output reg aluDest_out,					// 0 = reg, 1 = PC
-
-	output reg [2:0] regDest_out,
-	output reg regSetH_out,
-	output reg regSetL_out,
-	
-	output reg [2:0] regAddr_out,
-	output reg memReadB_out,
-	output reg memReadW_out,
-	output reg memWriteB_out,
-	output reg memWriteW_out,
-	
-	output reg [4:0] setRegCond_out,   // {should set when condition is true, Z doesn't matter, S doesn't matter, Z must be this, S must be this}
-	
-	output reg [15:0] imm_out
+	output reg [31:0] control_signals_out,
+	output reg [15:0] imm_out,
+	output reg [15:0] pc_out
 );
 
 	wire [3:0] aluOp_next;
@@ -63,24 +47,32 @@ module decoder_stage (
 		.imm(imm_next)
 	);
 	
+	wire [31:0] control_signals_next;
+	
+	ctrl_encode encode_inst (
+		.aluOp(aluOp_next),
+		.aluReg1(aluReg1_next),
+		.aluReg2(aluReg2_next),
+		.aluOpSource1(aluOpSource1_next),
+		.aluOpSource2(aluOpSource2_next),
+		.aluDest(aluDest_next),
+		.regDest(regDest_next),
+		.regSetH(regSetH_next),
+		.regSetL(regSetL_next),
+		.regAddr(regAddr_next),
+		.memReadB(memReadB_next),
+		.memReadW(memReadW_next),
+		.memWriteB(memWriteB_next),
+		.memWriteW(memWriteW_next),
+		.setRegCond(setRegCond_next),
+		.control_signals(control_signals_next)
+	);
+	
 	always @(posedge clk) begin
 		if(en) begin
-			aluOp_out <= aluOp_next;
-			aluReg1_out <= aluReg1_next;
-			aluReg2_out <= aluReg2_next;
-			aluOpSource1_out <= aluOpSource1_next;
-			aluOpSource2_out <= aluOpSource2_next;
-			aluDest_out <= aluDest_next;
-			regDest_out <= regDest_next;
-			regSetH_out <= regSetH_next;
-			regSetL_out <= regSetL_next;
-			regAddr_out <= regAddr_next;
-			memReadB_out <= memReadB_next;
-			memReadW_out <= memReadW_next;
-			memWriteB_out <= memWriteB_next;
-			memWriteW_out <= memWriteW_next;
-			setRegCond_out <= setRegCond_next;
+			control_signals_out <= control_signals_next;
 			imm_out <= imm_next;
+			pc_out <= pc_in;
 		end
 	end
 endmodule