Passing Most tests

rtl/VX_memory.v

@@ -0,0 +1,77 @@
+
+`include "VX_define.v"
+
+
+module VX_memory (
+		input wire[31:0]  in_alu_result,
+		input wire[2:0]   in_mem_read, 
+		input wire[2:0]   in_mem_write,
+		input wire[4:0]   in_rd,
+		input wire[1:0]   in_wb,
+		input wire[4:0]   in_rs1,
+		input wire[4:0]   in_rs2,
+		input wire[31:0]  in_rd2,
+		input wire[31:0]  in_PC_next,
+		input wire[31:0]  in_curr_PC,
+		input wire[31:0]  in_branch_offset,
+		input wire[2:0]   in_branch_type, 
+		input wire        in_valid,
+		input wire[31:0]  in_cache_driver_out_data,
+
+		output wire[31:0] out_alu_result,
+		output wire[31:0] out_mem_result,
+		output wire[4:0]  out_rd,
+		output wire[1:0]  out_wb,
+		output wire[4:0]  out_rs1,
+		output wire[4:0]  out_rs2,
+		output reg        out_branch_dir,
+		output wire[31:0] out_branch_dest,
+		output wire       out_delay,
+		output wire[31:0] out_PC_next,
+		output wire       out_valid,
+		output wire[31:0] out_cache_driver_in_address,
+		output wire[2:0]  out_cache_driver_in_mem_read,
+		output wire[2:0]  out_cache_driver_in_mem_write,
+		output wire[31:0] out_cache_driver_in_data 
+	);	
+
+		assign out_delay = 1'b0;
+
+		assign out_cache_driver_in_address   = in_alu_result;
+		assign out_cache_driver_in_mem_read  = in_mem_read;
+		assign out_cache_driver_in_mem_write = in_mem_write;
+		assign out_cache_driver_in_data      = in_rd2;
+
+
+		assign out_mem_result = in_cache_driver_out_data;
+		assign out_alu_result = in_alu_result;
+		assign out_rd = in_rd;
+		assign out_wb = in_wb;
+		assign out_rs1 = in_rs1;
+		assign out_rs2 = in_rs2;
+		assign out_PC_next = in_PC_next;
+
+		assign out_valid = in_valid;
+
+
+		assign out_branch_dest = $signed(in_curr_PC) + ($signed(in_branch_offset) << 1);
+
+
+		always @(*) begin
+			case(in_branch_type)
+				`BEQ:  out_branch_dir = (in_alu_result == 0)     ? `TAKEN     : `NOT_TAKEN;
+				`BNE:  out_branch_dir = (in_alu_result == 0)     ? `NOT_TAKEN : `TAKEN;
+				`BLT:  out_branch_dir = (in_alu_result[31] == 0) ? `NOT_TAKEN : `TAKEN;
+				`BGT:  out_branch_dir = (in_alu_result[31] == 0) ? `TAKEN     : `NOT_TAKEN;
+				`BLTU: out_branch_dir = (in_alu_result[31] == 0) ? `NOT_TAKEN : `TAKEN;
+				`BGTU: out_branch_dir = (in_alu_result[31] == 0) ? `TAKEN     : `NOT_TAKEN;
+				`NO_BRANCH: out_branch_dir = `NOT_TAKEN;
+				default:    out_branch_dir = `NOT_TAKEN;
+			endcase // in_branch_type
+		end
+
+
+
+endmodule // Memory
+
+