aboutsummaryrefslogtreecommitdiffstats
path: root/source/lang/api/highbyte.rst
diff options
context:
space:
mode:
Diffstat (limited to 'source/lang/api/highbyte.rst')
-rw-r--r--source/lang/api/highbyte.rst59
1 files changed, 59 insertions, 0 deletions
diff --git a/source/lang/api/highbyte.rst b/source/lang/api/highbyte.rst
new file mode 100644
index 0000000..50a1fa6
--- /dev/null
+++ b/source/lang/api/highbyte.rst
@@ -0,0 +1,59 @@
+.. highlight:: cpp
+
+.. _lang-highbyte:
+
+highByte()
+==========
+
+(Macro) Extracts the second lowest byte of an integral data type.
+
+.. warning:: This macro is provided for compatibility with Arduino
+ only. It returns the second-least significant byte in an integral
+ value. It makes sense to call this the "high" byte on a 16-bit
+ ``int`` microcontroller like the Atmel chips on Arduinos, but it
+ makes no sense at all on a 32-bit microcontroller like the STM32s
+ in the Maple line.
+
+ In short: we provide this so that existing Arduino code works as
+ expected, but **strongly discourage its use** in new programs.
+
+Syntax
+------
+
+::
+
+ highByte(x)
+
+Parameters
+----------
+
+**x**: a value of any integral type.
+
+Returns
+-------
+
+Second lowest byte in **x**.
+
+Example
+-------
+
+::
+
+ int x = 0xDEADBEEF;
+ SerialUSB.println(x, HEX); // prints "BE"
+
+Arduino Compatibility
+---------------------
+
+The Maple version of ``highByte()`` is compatible with Arduino.
+
+See Also
+--------
+
+- :ref:`lowByte() <lang-lowbyte>`
+
+
+
+
+
+.. include:: cc-attribution.txt