v2.17

Bugfixes:

• option renamekeyword: if the keyword was renamed multiple times it
  did work only if the first occurance of this option was after an
  instruction or directive that triggered "fastpass"; see renkeyw.asm.
• option renamekeyword: keywords weren't restored to their default at
  end of pass; see renkeyw2.asm.
• option renamekeyword: renaming an already renamed keyword may have
  caused an infinite loop; see renkeyw3.asm.
• size operand of DUP operator was checked to be positive, but wasn't
  checked for 32-bit overflow; see constnt3.asm.
• direct memory access with flat override ( for constant addresses )
  may have generated error "cannot access label through segment registers";
  see flatgrp3.asm.
• regression in v2.16: invoke may have generated a "PUSHD" in 64-bit code
  if .model wasn't flat; see invoke54.asm.
• FLAT: override may have suppressed address size prefix; see
  flatgrp4.asm.
• invoke, 64-bit, non-win64, vararg: 32-bit registers were rejected as
  arguments; see invoke55.asm.
• display of assembly-time was correct only if CLOCKS_PER_SEC was 1000.
• listing of embedded structs/unions: the printed start offset was wrong
  if the struct/union wasn't located before any code/data lines; see
  struct42.asm.
• djgpp output format was broken.
• COMM directive: if a type was given instead of a size, the type wasn't
  stored in the symbol and hence couldn't be used in expressions; see
  comm7.asm.

Other changes:

• option stackbase: may be used in conjunction with "assume ss" to
  define a PROC where CS and SS differ in offset magnitude ( 16-bit
  code with 32-bit stack and vice versa ); see stkbase1.asm, stkbase2.asm.
• format -pe: 64-bit segments defined with USE64 are added to internal
  "flat" group if model is flat. Allows to mix 32- and 64-bit segments in
  .model FLAT; see flatgrp5.asm & flatgrp6.asm.
• simplified segment directive .code with name argument in tiny model
  always added the segment to dgroup. Now this is done only if segment's
  offset size matches the model's offset size; see tiny2.asm.
• RETs inside PROCs will now show up in listing file like in Masm; see
  lst3.asm.
• in listings, offset of 16-bit segments now displayed with width 4.
• offsets/displacements that are too large will now always cause error
  "constant value too large"; see offset17/18/19.asm.
• output format -djgpp ( special coff variant ), previously optional only,
  is now activated as default.