重新添加L和R引脚

shifter_8b/shifter_8b.fit.summary

@@ -1,15 +1,15 @@
-Fitter Status : Successful - Tue Mar 08 15:17:17 2022
+Fitter Status : Successful - Thu Mar 10 14:51:54 2022
 Quartus II Version : 9.0 Build 235 06/17/2009 SP 2 SJ Web Edition
 Revision Name : shifter_8b
 Top-level Entity Name : shifter_8b
 Family : Cyclone II
 Device : EP2C8Q208C8
 Timing Models : Final
-Total logic elements : 14 / 8,256 ( < 1 % )
-    Total combinational functions : 14 / 8,256 ( < 1 % )
+Total logic elements : 16 / 8,256 ( < 1 % )
+    Total combinational functions : 16 / 8,256 ( < 1 % )
     Dedicated logic registers : 0 / 8,256 ( 0 % )
 Total registers : 0
-Total pins : 19 / 138 ( 14 % )
+Total pins : 21 / 138 ( 15 % )
 Total virtual pins : 0
 Total memory bits : 0 / 165,888 ( 0 % )
 Embedded Multiplier 9-bit elements : 0 / 36 ( 0 % )