Reserved Words
 
    The list of words in this table are words that have special meaning to
    the assembler.  You cannot use them for any purpose other than that
    defined by the assembler.
 
      .186           DI             .ERRNZ          LENGTH        .SALL
      .286c          DL             ES             .LFCOND        SEG
      .286p          DQ             EVEN           .LIST          SEGMENT
      .287           DS             EXITM          LOCAL          .SFCOND
      .8086          DT             EXTRN          LOW            SHL
      .8087          DW             FAR            LT             SHORT
      =              DWORD          GE             MACRO          SHR
      AH             DX             GROUP          MASK           SI
      AL             ELSE           GT             MOD            SIZE
      AND            END            HIGH           NAME           SP
      ASSUME         ENDIF          IF             NE             SS
      AX             ENDM           IF1            NEAR           STRUC
      BH             ENDP           IF2            NOT            SUBTTL
      BL             ENDS           IFB            OFFSET         TBYTE
      BP             EQ             IFDEF          OR             .TFCOND
      BX             EQU            IFDIF          ORG            THIS
      BYTE           .ERR           IFE            %OUT           TITLE
      CH             .ERR1          IFIDN          PAGE           TYPE
      CL             .ERR2          IFNB           PROC           .TYPE
      COMMENT        .ERRB          IFNDEF         PTR            WIDTH
      .CREF          .ERRDEF        INCLUDE        PUBLIC         WORD
      CS             .ERRDIF        IRP            PURGE          .XALL
      CX             .ERRE          IRPC           QWORD          .XCREF
      DB             .ERRIDN        LABEL          .RADIX         .XLIST
      DD             .ERRNB         .LALL          RECORD         XOR
      DH             .ERRNDEF       LE             REPT
 
  --------------------------------------------------------------------------
 
       Notes:         This list does not include the mnemonics for the
                      instruction set.
 
                      These words are not case sensitive, which means that
                      both PURGE and purge are reserved.