From e71f1f2c4df216677d62043070e40aa31bf4f6c3 Mon Sep 17 00:00:00 2001
From: Jens True <jens.chr.true@gmail.com>
Date: Sun, 2 Aug 2020 14:34:35 +0200
Subject: [PATCH] More bitmagic. Theme update

---
 content/post/bit-magic/index.md | 29 ++++++++++++++++++++++++++++-
 themes/academic                 |  2 +-
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/content/post/bit-magic/index.md b/content/post/bit-magic/index.md
index 613cad3..1a669c4 100644
--- a/content/post/bit-magic/index.md
+++ b/content/post/bit-magic/index.md
@@ -10,7 +10,7 @@ categories: []
 date: 2020-06-13T19:01:19+02:00
 lastmod: 2020-06-13T19:01:19+02:00
 featured: false
-draft: true
+draft: false
 
 # Featured image
 # To use, add an image named `featured.jpg/png` to your page's folder.
@@ -57,4 +57,31 @@ output = x ^ (1 << bit);
 variable ^= (1 << bit);
 // Multiple bits
 variable ^= (0b101 << bit);
+```
+
+# Math
+```c
+// Division using bitshift
+output = input >> 1; // Divide by 2
+output = input >> 2; // Divide by 4
+output = input >> 3; // Divide by 8
+// Multiply using bitshifting
+output = input << 1; // Multiply by 2
+output = input << 2; // Multiply by 4
+output = input << 3; // Multiply by 8
+```
+
+# Set X number of bits high.
+```c
+output = (0b1 << X) -1;
+```
+
+# Miccelean
+```c
+// Check if number is ODD
+if( (num & 1) == 1) {};
+// Flip signed integer
+num = ~num + 1;
+// Power of two
+num > 0 && (num & (num - 1)) == 0;
 ```
\ No newline at end of file
diff --git a/themes/academic b/themes/academic
index c4f0317..6bf2822 160000
--- a/themes/academic
+++ b/themes/academic
@@ -1 +1 @@
-Subproject commit c4f0317cdf5b2197bb42e793b151a246534b7b48
+Subproject commit 6bf282275adcab3bd96df71bc75bf32fb09b1106