anchor.diff:  ' compile,    0  DD set-token
   ' behavior    0  DE set-token 
   
  -' start0             0  F0 set-token
  -' start1             0  F1 set-token
  -' start2             0  F2 set-token
  -' start4             0  F3 set-token
  -
  -' ferror             0  FC set-token
  -' version1           0  FD set-token
  -
  -\ ' 4-byte-id        0  FE set-token    \ Historical
  -' end1               0  FF set-token
  -
  -\ ' dma-alloc   0 101 set-token 
  +\ Tokens 0xDF to 0xEF are reserved
  +
  +' start0            0  F0 set-token
  +' start1            0  F1 set-token
  +' start2            0  F2 set-token
  +' start4            0  F3 set-token
  +
  +\ Tokens 0xF4 to 0xFB are reserved
  +
  +' ferror            0  FC set-token
  +' version1          0  FD set-token
  +
  +\ ' 4-byte-id       0  FE set-token    \ Historical, not supported
  +' end1              0  FF set-token
  +
  +\                   0 100 set-token    \ reserved
  +\ ' dma-alloc       0 101 set-token    \ Obsolete
   ' my-address        0 102 set-token 
   ' my-space          0 103 set-token
  +\ ' memmap          0 104 set-token    \ Obsolete
  +\ ' free-virtual    0 105 set-token    \ TODO
  +\ ' >physical       0 106 set-token    \ Obsolete
  +
  +\ Tokens 0x107 to 0x10e are reserved
  +
  +\ ' my-params       0 10f set-token    \ Obsolete
   ' property          0 110 set-token
   ' encode-int        0 111 set-token
   ' encode+           0 112 set-token
  
positive.code: ' bwjoin      0 B0 set-token 
  ' b(<mark)    1 B1 set-token
  ' b(>resolve) 1 B2 set-token
  \ ' ferror      0 B3 set-token 
  \ ' ferror      0 B4 set-token 
  ' new-token   0 B5 set-token 
  ' named-token 0 B6 set-token
  ' b(:)        1 B7 set-token
  
negative.code: ' $call-parent      0 209 set-token
  ' my-parent         0 20A set-token
  ' ihandle>phandle   0 20B set-token
  \                   0 20C set-token       \ reserved
  ' my-unit           0 20D set-token
  ' $call-method      0 20E set-token
  ' $open-package     0 20F set-token
  \ ' processor-type  0 210 set-token       \ Obsolete
  \ ' firmware-version 0 211 set-token      \ Obsolete
  \ ' fcode-version   0 212 set-token       \ Obsolete
  \ ' alarm           0 213 set-token       \ TODO
  ' (is-user-word)    0 214 set-token
  ' suspend-fcode     0 215 set-token
  ' fc-abort          0 216 set-token
  ' catch             0 217 set-token
  ' throw             0 218 set-token
  \ ' user-abort      0 219 set-token       \ TODO
  ' get-my-property   0 21A set-token
  ' decode-int        0 21B set-token
  ' decode-string     0 21C set-token
  