Load_Unit.v

// msrv32_load_unit 21BCE0289
module msrv32_load_unit(
	input ahb_resp_in,
	input [31:0] ms_riscv32_mp_dmdata_in,
	input [1:0] iadder_out_1_to_0_in,
	input load_unsigned_in,
	input [1:0] load_size_in,
	output reg [31:0] lu_output_out
);
	parameter BYTE = 2'b00,
		HALF = 2'b01,
		WORD = 2'b10;

	initial begin
		lu_output_out = 32'h00000000;
	end

	always@(*) begin
		if(!ahb_resp_in) begin
			case(load_size_in)
				BYTE: case(iadder_out_1_to_0_in)
					2'b00: lu_output_out = { (load_unsigned_in ? 24'b0 : ({24{ms_riscv32_mp_dmdata_in[7]}})), ms_riscv32_mp_dmdata_in[7:0] };
					2'b01: lu_output_out = { (load_unsigned_in ? 24'b0 : ({24{ms_riscv32_mp_dmdata_in[15]}})), ms_riscv32_mp_dmdata_in[15:8] };
					2'b10: lu_output_out = { (load_unsigned_in ? 24'b0 : ({24{ms_riscv32_mp_dmdata_in[23]}})), ms_riscv32_mp_dmdata_in[23:16] };
					2'b11: lu_output_out = { (load_unsigned_in ? 24'b0 : ({24{ms_riscv32_mp_dmdata_in[31]}})), ms_riscv32_mp_dmdata_in[31:24] };
					default: lu_output_out = { (load_unsigned_in ? 24'b0 : ({24{ms_riscv32_mp_dmdata_in[7]}})), ms_riscv32_mp_dmdata_in[7:0] };
				endcase
				HALF: case(iadder_out_1_to_0_in[1])
					1'b0: lu_output_out = { (load_unsigned_in ? 16'b0 : ({16{ms_riscv32_mp_dmdata_in[15]}})), ms_riscv32_mp_dmdata_in[15:0] };
					1'b1: lu_output_out = { (load_unsigned_in ? 16'b0 : ({16{ms_riscv32_mp_dmdata_in[31]}})), ms_riscv32_mp_dmdata_in[31:16] };
					default: lu_output_out = { (load_unsigned_in ? 16'b0 : ({16{ms_riscv32_mp_dmdata_in[15]}})), ms_riscv32_mp_dmdata_in[15:0] };
				endcase
				WORD: lu_output_out = ms_riscv32_mp_dmdata_in;
				default: lu_output_out = ms_riscv32_mp_dmdata_in;
			endcase
		end
	end
endmodule