Code Page Translation Table

Has the following format when there are 127 copies of the KeyDef record shown below (includes one for each possible scan code that can be returned from the keyboard). Not all entries are used; unused entries are zero. The entries are in scan code order, based on the remapped scan codes returned by the keyboard controller.

        XlateTable:
            XHeader          : XHeader
            KeyDef1          : KeyDef
            KeyDef2          : KeyDef
            KeyDef3          : KeyDef
               .                  .
               .                  .
               .                  .
            KeyDef127        : KeyDef
            AccentTbl        : AccentTable
        End XlateTable

        XHeader:
            XTableID         : WORD [Code PageNumber]
        XTableFlags1         : Rec  [Word Width]
                             : The following three bits determine which shift key
                             : or key combination affects CHAR3 of each KeyDef.
            ShiftAlt         : Bit 0 [Use Shift+Alt instead of Ctrl+Alt]
            AltGrafL         : Bit 1 [Use left Alt key as Alt+Graphics]
            AltGrafR         : Bit 2 [Use right Alt key as Alt+Graphics]
            ShiftLock        : Bit 3 [Treat Caps Lock as ShiftLock]
            DefaultTable     : Bit 4 [Default table for the Lang.]
            ShiftToggle      : Bit 5 [Toggle or LatchShiftLock]
                             :       When 1 toggle, else latch
            AccentPass       : Bit 6 [Pass accent and non-accent key through]
                             :       When 1 pass on accent keys and beep, else beep
                             :        only.
                             : The following four bits determine which shift key or
                             : key combination causes Char5 to be used in each
                             :        KeyDef.
            CapsShift        : Bit 7 [Caps+Shift uses CHAR5]
            MachDep          : Bit 8 [Machine-dependent table]
            Reserved         : Bits  9-10
            Reserved         : Bits 11-15
        EndRec XtableFlags1

        XTableFlags2         : Rec[WORD Width]
            Reserved         : Bits 0-15
        EndRec XtableFlags2

            KbdType          : WORD [Keyboard type, see below]
            KbdSubType       : WORD [Reserved]
            XtableLen        : WORD [Length of table]
            EntryCount       : WORD [Number of KeyDef entries]
            EntryWidth       : WORD [Width of KeyDef entries]
            Country          : WORD [Language ID]
            TableTypeID      : WORD [Identifies the table type]
                                    1st byte (type)     : 01X  00X
                                    2nd byte (sub-type) : 00X  Reserved
            SubCountryID     : 4 Bytes [Sub-language Identifier]
            Reserved         : 8 WORDS [Reserved]
        End XHeader

        KeyDef = Rec           [127 copies of this record.]
            XlateOp = Rec      [WORD field] [Translate operation specifier.]
                AccentFlags  : 7 Bits [See Notes 1 and 8.]
                KeyType      : 9 bits [See Note 2.]
            Char1            : Byte [Use depends on KeyType, see below.]
            Char2            : Byte [Use depends on KeyType, see below.]
            Char3            : Byte [Use depends on KeyType, see below.]
            Char4            : Byte [Use depends on KeyType, see below.]
            Char5            : Byte [Use depends on KeyType, see below.]
        EndRec KeyDef

        AccentTable = Rec      [Table of accent key definitions.]
            AccentEntry1     : AccentEntry
            AccentEntry2     : AccentEntry
                 .                  .
                 .                  .
                 .                  .
            AccentEntry7     : AccentEntry
        EndRec AccentTable


        AccentEntry = Rec     [Accent entry definition. See Notes 1 and 9.]
            NonAccent       : 2 Bytes [Char/scan code when not used as accent]
            CtlAccent       : 2 Bytes [Char/scan code when used with CTL.]
            AltAccent       : 2 Bytes [Char/scan code when used with Alt.]
            Map1            : 2 Bytes [From char-to-char for translation.]
            Map2            : 2 Bytes   "  "  "  "
              .                   .     "  "  "  "
              .                   .     "  "  "  "
              .                   .     "  "  "  "
            Map20           : 2 Bytes   "  "  "  "
        EndRec AccentEntry

        TableTypeID
                               1st Byte     2nd Byte
                               type         sub-type
                               00X          Reserved
        OS/2                   01X          00X