* divmul32: includes 32-bit division, multiplication, and modulo instructions.
* divmul64: includes divmul32, plus 64-bit division, multiplication,
and modulo instructions.
-* legacy: deprecated packet access instructions.
+* packet: deprecated packet access instructions.
Instruction encoding
====================
mode modifier of ``ABS`` or ``IND``. The 'dst_reg' and 'offset' fields were
set to zero, and 'src_reg' was set to zero for ``ABS``. However, these
instructions are deprecated and should no longer be used. All legacy packet
-access instructions belong to the "legacy" conformance group.
+access instructions belong to the "packet" conformance group.