File Management - IBM

1st
byte
2nd byte
0
0
00
40
41
FE
FF
4
0 4 1
D: double-byte code area
x: double-byte blank
Figure 18. IBM-Host Code Scheme
x
F
E F F
By assigning the values hex 41 to hex FE in the first and second bytes as the DBCS
codes, the codes can be grouped in wards with 192 code points in each ward. For
example, the code group with the first byte starting with hex 42 is called ward 42.
Ward 42 has the same alphanumeric characters as those in a corresponding
single-byte EBCDIC code page, but with double-byte codes. For example, the
character A is represented in single-byte EBCDIC code as hex C1 and in IBM-host
code as hex 42C1.
The AS/400 system supports the following double-byte character sets:
v IBM Japanese Character Set
v IBM Korean Character Set
v IBM Simplified Chinese Character Set
v IBM Traditional Chinese Character Set
The following tables show the code ranges for each character set and the number
of characters supported in each character set.
Table 28. IBM Japanese Character Set
Number of
Wards Content
Characters
40 Space in 4040 1
41 to 44 Non-Kanji characters
v Greek, Russian, Roman numeric (Ward
41)
v Alphanumeric and related symbols
(Ward 42)
v Katakana, Hiragana, and special
symbols (Ward 43-44)
D
RSLH712-4
45 to 55 Basic Kanji characters 3226
56 to 68 Extended Kanji characters 3487
549
Appendix B. Double-byte character set support 199