s390xmap command

s390xmap constructs the s390x opcode map from the instruction set CSV file.

Usage:

s390map [-fmt=format] s390x.csv

The known output formats are:

text (default) - print decoding tree in text form
decoder - print decoding tables for the s390xasm package
encoder - generate a self-contained file which can be used to encode
	  go obj.Progs into machine code
asm - generate a GNU asm file which can be compiled by gcc containing
      all opcodes discovered in s390x.csv using macro friendly arguments.