Strings

LIT    --         Write a LIT entry. You're expected to write
                  actual string to HERE right afterwards.
LIT< x --         Read following word and write to HERE as a
                  string literal.
LITS   a --       Write word at addr a as a atring literal.
S=     a1 a2 -- f Compare strings a1 and a2, return true if equal
SCPY   a --       Copy string at addr a into HERE.
SLEN   a -- n     Push length of str at a.