z/OS ISPF Planning and Customizing
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Alphabetic character translation tables

z/OS ISPF Planning and Customizing
GC19-3623-00

There are two alphabetic translation tables:
  • TTALP, which includes the number sign (#), the dollar sign ($), and the at sign (@) (Table 1).
  • TTALB, which does not include the number sign (#), the dollar sign ($), and the at sign (@) (Table 2).
Note: Valid alphabetic characters are represented with X'00'. For example, the hexadecimal position for an uppercase ‘A’ contains X'00'. Non-alphabetic characters are represented with X'FF'. For example, the hexadecimal position for a blank contains X'FF'.
Table 1. Sample alphabetic character translation table including #, $, and @
Table Hexadecimal Code Position
TTALP
DC X'FFFFFFFFFFFFFFFF'
DC X'FFFFFFFFFFFFFFFF'
DC X'FFFFFFFFFFFFFFFF'
          ...
DC X'FFFFFF0000FFFFFF'
DC X'FF00000000000000'
          ...
DC X'0000FFFFFFFFFFFF'
DC X'FFFFFFFFFFFFFFFF'
DC X'0000FFFFFFFFFFFF'
(X'00' to X'07')
(X'08' to X'0F')
(X'10' to X'17')

(X'78' to X'7F')
(X'80' to X'87')

(X'E8' to X'EF')
(X'F0' to X'F7')
(X'F8' to X'FF')
Table 2. Sample alphabetic character translation table excluding #, $, and @
Table Hexadecimal Code Position
TTALB
DC X'FFFFFFFFFFFFFFFF'
DC X'FFFFFFFFFFFFFFFF'
DC X'FFFFFFFFFFFFFFFF'
          ...
DC X'FFFFFFFFFFFFFFFF'
DC X'FFFFFFFFFFFFFFFF'
          ...
DC X'FFFFFFFFFFFFFFFF'
DC X'FF00000000000000'
DC X'0000FFFFFFFFFFFF'
          ...
DC X'0000FFFFFFFFFFFF'
DC X'FFFFFFFFFFFFFFFF'
DC X'FFFFFFFFFFFFFFFF'
(X'00' to X'07')
(X'08' to X'0F')
(X'10' to X'17')

(X'50' to X'57')
(X'58' to X'5F')

(X'78' to X'7F')
(X'80' to X'87')
(X'88' to X'8F')

(X'E8' to X'EF')
(X'F0' to X'F7')
(X'F8' to X'FF')

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