1 files changed, 27 insertions, 0 deletions
diff --git a/3544/CH3/EX3.81/Ex3_81.sce b/3544/CH3/EX3.81/Ex3_81.sce
new file mode 100644
index 000000000..562b0e531
--- /dev/null
+++ b/3544/CH3/EX3.81/Ex3_81.sce
@@ -0,0 +1,27 @@
+
+//Key expansion example
+
+n = 0:15
+n = int8(n)
+disp("Byte position(decimal)")
+for i=1:length(n)
+    printf("%4d",n(i))
+end
+
+disp("")
+
+disp("Value(hex)")
+
+for i=1:length(n)
+    printf("  %s","0"+string(dec2hex(n(i))))
+end
+
+disp("")
+
+for i=0:3
+    printf("\n\tW[%d]\t\t\t",i)
+    for j=1:4
+        printf("0%s\t",string(dec2hex(n(i*4+j))))
+    end
+    
+end