alu

3 years ago · 8154d81cc2
parent cf64f9e6f3
commit 8154d81cc2
1 changed files with 8 additions and 1 deletions
--- a/code/alu.py
+++ b/code/alu.py
@ -84,4 +84,11 @@ def alu(a, b, alu_ctrl):  # a,b为两个运算数，alu_ctrl为控制信号，
    elif alu_ctrl == '01111':
        if a < 0:
            ua = a + 2**32
-        els
+        else:
+            ua = a
+        alu_result = a >> b
+    elif alu_ctrl == '10000':
+        alu_result = a >> b
+    else:
+        alu_result = 0
+    return alu_result