Table 1283
Bitfields for new executable program flags:
Bit(s)  Description     
 0-1    DGROUP type
          0 = none
          1 = single shared
          2 = multiple (unshared)
          3 = (null)
 2      global initialization
 3      protected mode only
 4      8086 instructions
 5      80286 instructions
 6      80386 instructions
 7      80x87 instructions