Diff: HomemadeMbed.cpp

Revision:

13:bb9669053eb3

Child:

14:2f89279586cb

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/HomemadeMbed.cpp	Mon Jan 16 00:06:45 2017 +0000
@@ -0,0 +1,20 @@
+#include "HomemadeMbed.hpp"
+#include "Utility.hpp"
+
+namespace homemade_mbed
+{
+    unsigned int read_bits(int* address_4_bytes, const int start_bit, const int stop_bit)
+    {
+        const unsigned int all_4_bytes = *address_4_bytes;
+        const unsigned int left_shifted = all_4_bytes << (31 - stop_bit);
+        const unsigned int right_shifted = left_shifted >> (31 - stop_bit + start_bit);
+        return right_shifted;
+    }
+    
+    void write_bits(int* address_4_bytes, const int start_bit, const int stop_bit, const unsigned int new_value)
+    {
+        const unsigned int all_4_bytes = *address_4_bytes;
+        const unsigned int new_bits = utility::update_bits(all_4_bytes, start_bit, stop_bit, new_value);
+        *address_4_bytes = new_bits;
+    }
+}
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