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-rw-r--r--src/uint8p.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/src/uint8p.c b/src/uint8p.c
new file mode 100644
index 0000000..3a41560
--- /dev/null
+++ b/src/uint8p.c
@@ -0,0 +1,39 @@
+#include "uint_t.h"
+
+/**
+ * @file uint8p.c
+ * @author feh
+ * @brief packing/unpacking 8 bit int to/from char string
+ */
+
+void uint8_pack(char s[2],uint8 u)
+{
+ s[0] = u & 255;
+ s[1] = u >> 4;
+}
+
+void uint8_pack_big(char s[2],uint8 u)
+{
+ s[1] = u & 255;
+ s[0] = u >> 4;
+}
+
+void uint8_unpack(char s[2],uint8 *u)
+{
+ uint8 result;
+
+ result = (unsigned char) s[1]; result <<= 4;
+ result += (unsigned char) s[0];
+
+ *u = result;
+}
+
+void uint8_unpack_big(char s[2],uint8 *u)
+{
+ uint8 result;
+
+ result = (unsigned char) s[0]; result <<= 4;
+ result += (unsigned char) s[1];
+
+ *u = result;
+}