+ exec_st : execute_stage
+ generic map('0')
+ port map(sys_clk_pin, sys_res_n_pin,to_next_stage_pin, result_pin, result_addr_pin,addr_pin,
+ data_pin, alu_jump_pin,brpr_pin, wr_en_pin, dmem_pin,dmem_wr_en_pin,hword_pin,byte_s_pin);
+
+ writeback_st : writeback_stage
+ generic map('0', '1')
+ port map(sys_clk_pin, sys_res_n_pin, result_pin, result_addr_pin, addr_pin, data_pin, alu_jump_pin, brpr_pin,
+ wr_en_pin, dmem_pin, dmem_wr_en_pin, hword_pin, byte_s_pin,
+ reg_wr_data_pin, reg_we_pin, reg_w_addr_pin, jump_result_pin, alu_jump_bit_pin);