Initial commit

kapitel7/bitvis-negation-ex1.c

@@ -0,0 +1,13 @@
+#include <stdio.h>
+
+int main(void)
+{
+    unsigned char a = 140; /* 1000 1100 */
+    unsigned char b;
+
+    b = ~a;
+
+    printf("b = %d\n", b); /* 0111 0011 */
+
+    return 0;
+}

kapitel7/bitvis-negation-signerad.c

@@ -0,0 +1,9 @@
+#include <stdio.h>
+int main(void)
+{
+    int a = 140; /* 0 1000 1100 */
+    int b;
+    b = ~a;
+    printf("b = %d\n", b); /* 1 0111 0011 */
+    return 0;
+}

kapitel7/bitvis-skift-ex1.c

@@ -0,0 +1,17 @@
+#include <stdio.h>
+
+int main(void)
+{
+    unsigned char a = 16; /* 00010000 */
+
+    printf("%d\n", (a = a >> 1)); /* 8 = 00001000 */
+    printf("%d\n", (a = a >> 1)); /* 4 = 00000100 */
+    printf("%d\n", (a = a >> 2)); /* 1 = 00000001 */
+
+    printf("%d\n", (a = a << 1)); /* 2   = 00000010 */
+    printf("%d\n", (a = a << 4)); /* 32  = 00100000 */
+    printf("%d\n", (a = a << 1)); /* 64  = 01000000 */
+    printf("%d\n", (a = a << 1)); /* 128 = 10000000 */
+    
+    return 0;
+}

kapitel7/bitwise-and-or-ex1.c

@@ -0,0 +1,16 @@
+#include <stdio.h>
+
+int main(void)
+{
+    unsigned char a = 12; /* 0000 1100 */
+    unsigned char b = 9;  /* 0000 1001 */
+    unsigned char c, d;
+
+    c = a & b;
+    d = a | b;
+
+    printf("OCH = %d\n", c);
+    printf("ELLER = %d\n", d);
+
+    return 0;
+}

kapitel7/bitwise-and-or-ex2.c

@@ -0,0 +1,14 @@
+#include <stdio.h>
+
+int main(void)
+{
+    unsigned char a = 12; /* 0000 1100 */
+    unsigned char b = 9;  /* 0000 1001 */
+
+    if((a & b) == 8)
+        printf("Korrekt, talet blir åtta\n");
+    if((a | b) == 13)
+        printf("Korrekt, talet blir tretton\n");
+
+    return 0;
+}

kapitel7/bitwise-and-or-ex3.c

@@ -0,0 +1,11 @@
+#include <stdio.h>
+
+int main(void)
+{
+    unsigned char x = 211;  /* 1101 0011 */
+
+    if (x & 64)
+        printf("Den andra biten från vänster är satt\n");
+
+    return 0;
+}

kapitel7/bitwise-and-or-ex4.c

@@ -0,0 +1,13 @@
+#include <stdio.h>
+
+int main(void)
+{
+    unsigned char a = 128;
+    unsigned char b;
+
+    b = a | 1;
+
+    printf("b = %d\n", b);
+
+    return 0;
+}

kapitel7/exklusiv-eller.c

@@ -0,0 +1,13 @@
+#include <stdio.h>
+
+int main(void)
+{
+    unsigned char a = 147;
+    unsigned char b;
+
+    b = a ^ 17;
+
+    printf("b = %d\n", b);
+
+    return 0;
+}