micropython: add micropython component

components/language/micropython/docs/reference/asm_thumb2_directives.rst

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+Assembler directives
+====================
+
+Labels
+------
+
+* label(INNER1)
+
+This defines a label for use in a branch instruction. Thus elsewhere in the code a ``b(INNER1)``
+will cause execution to continue with the instruction after the label directive.
+
+Defining inline data
+--------------------
+
+The following assembler directives facilitate embedding data in an assembler code block.
+
+* data(size, d0, d1 .. dn)
+
+The data directive creates n array of data values in memory. The first argument specifies the
+size in bytes of the subsequent arguments. Hence the first statement below will cause the
+assembler to put three bytes (with values 2, 3 and 4) into consecutive memory locations
+while the second will cause it to emit two four byte words.
+
+::
+
+    data(1, 2, 3, 4)
+    data(4, 2, 100000)
+
+Data values longer than a single byte are stored in memory in little-endian format.
+
+* align(nBytes)
+
+Align the following instruction to an nBytes value. ARM Thumb-2 instructions must be two
+byte aligned, hence it's advisable to issue ``align(2)`` after ``data`` directives and
+prior to any subsequent code. This ensures that the code will run irrespective of the
+size of the data array.