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AX = 1401h DS:SI -> internal code page structure (see #02618) BX = new code page (see #01757 at INT 21/AX=6602h) DX = country code???
Return:
AL = status 00h successful else DOS error code
Note: This function is called by the DOS v3.3+ kernel
See Also: AX=1400h"NLSFUNC" - AX=1402h"NLSFUNC" - INT 21/AH=66h
Format of DOS 3.30 internal code page structure: Offset Size Description (Table 02618) 00h 8 BYTEs ??? 08h 64 BYTEs name of country information file (see #02619) 48h WORD system code page (see #01757 at INT 21/AX=6602h) 4Ah WORD number of supported subfunctions 4Ch 5 BYTEs data to return for INT 21/AX=6502h 51h 5 BYTEs data to return for INT 21/AX=6504h 56h 5 BYTEs data to return for INT 21/AX=6505h 5Bh 5 BYTEs data to return for INT 21/AX=6506h 60h 41 BYTEs data to return for INT 21/AX=6501h
Format of MS-DOS/PC-DOS/OS2/WinNT/PTS-DOS COUNTRY.SYS file: Offset Size Description (Table 02619) 00h BYTE ID tag (FFh) 01h 7 BYTEs ASCII "COUNTRY" 08h 8 BYTEs ??? (00h) 10h BYTE ??? (01h) 11h BYTE ??? (00h) 12h BYTE ??? (01h) 13h DWORD offset of first entry in file (see #02620)
See Also: #02623
Format of MS-DOS/PC-DOS/OS2/WinNT/PTS-DOS COUNTRY.SYS entry: Offset Size Description (Table 02620) 00h WORD number of country-codepage entries following 02h N Country-Codepage entries: Offset Size Description 00h WORD length of entry, not counting this word (000Ch) 02h WORD country ID 04h WORD codepage ID 06h WORD ??? (0000h) 08h WORD ??? (0000h) 0Ah DWORD offset of country-subfunction-header in file (see #02621)
Notes: Multiple codepages for a country are stored consecutively. PTS/DOS places a copyright string immediately following this structure, though a copyright at the end of the file is preferable
See Also: #02619
Format of MS-DOS/PC-DOS/OS2/WinNT/PTS-DOS COUNTRY.SYS country-subfunc header: Offset Size Description (Table 02621) 00h WORD number of subfunction entries following 02h N subfunction entries Offset Size Description 00h WORD length of subfunction entry, not counting this word (usually 06h) 02h WORD subfunction ID (value passed to INT 21/AH=65h in AL) 04h DWORD offset within file of subfunction data entry (see #02622)
See Also: #02620
Format of MS-DOS/PC-DOS/OS2/WinNT/PTS-DOS COUNTRY.SYS country-subfunc data:: Offset Size Description (Table 02622) 00h BYTE ID-tag (FFh) 01h 7 BYTEs table-type signature (blank-padded) "CTYINFO" general country info (subfn 01h) "UCASE " uppercase table (subfn 02h) "LCASE " lowercase table (subfn 03h) (DOS 6.2_) "FUCASE " filename uppercase table (subfn 04h) "FCHAR " filename terminator table (subfn 05h) "COLLATE" collating sequence (subfn 06h) "DBCS " double-byte character table (subfn 07h) 08h WORD length of following table in bytes (if 0000h for DBCS table, there will still be a word of 0000h) ---country info (01h)--- 0Ah WORD country ID (see #01400 at AH=38h) 0Ch WORD code page (see #01757) 0Eh 34 BYTEs country-dependent info (see #01399 at AH=38h) ---uppercase table (02h)--- 0Ah 128 BYTEs uppercase equivalents (if any) of chars 80h to FFh ---lowercase table (03h)--- 0Ah 256 BYTEs lowercase equivalents (if any) of chars 00h to FFh ---filename uppercase table (04h)--- 0Ah 128 BYTEs uppercase equivalents (if any) of chars 80h to FFh ---filename terminator table (05h)--- 0Ah BYTE ??? (01h for MS-DOS 3.30-6.00) 0Bh BYTE lowest permissible character value for filename 0Ch BYTE highest permissible character value for filename 0Dh BYTE ??? (00h for MS-DOS 3.30-6.00) 0Eh BYTE first excluded character in range \ all characters in this 0Fh BYTE last excluded character in range / range are illegal 10h BYTE ??? (02h for MS-DOS 3.30-6.00) 11h BYTE number of illegal (terminator) characters
12h N BYTEs characters which terminate a filename:
."/\[]:|<>+=;, ---collating sequence (06h)--- 0Ah 256 BYTEs values used to sort characters 00h to FFh ---DBCS table (07h)--- 0Ah 2N BYTEs start/end for N lead byte ranges. WORD 0000h (end of table)
See Also: #02621 - #01750 - #01751 - #01753 - #01754 - #01755 - #01756
Format of DR DOS/Novell DOS/OpenDOS COUNTRY.SYS file: Offset Size Description (Table 02623) 00h 126 BYTEs copyright notice (terminated with Ctrl-Z; NUL-padded) the copyright notice starts with the signature "COUNTRY.SYS Rx.xx" where "x.xx" indicates the file format revision, which is checked by the OS (revision is 2.00 for DR DOS 3.41 and 2.01 for all newer versions of DR DOS, Novell DOS, and OpenDOS) 7Eh WORD signature of file format revision 0EDCh = 2.00 (DR DOS 3.41) EDC1h = 2.01 (all newer versions) 80h var country pointer records (see #02624) (packed array of variable-size records)
See Also: #02619
Format of DR DOS/Novell DOS/OpenDOS COUNTRY.SYS country pointer record:: Offset Size Description (Table 02624) 00h WORD country code (0000h if end of array) 02h WORD code page (see #01757) 04h WORD ??? (0000h) 06h 7 WORDs offsets in file for INT 21/AH=65h subfunctions 01h to 07h, or 0000h if no table for that subfunction 14h var country information
Notes: The end-of-file marker is a country pointer record filled entirely with zeros. The data at which the pointers point is in the same format as the tables returned by INT 21/AH=65h, except that the general-info table for subfunction 01h does not contain the length word at the beginning
See Also: #02623
Category: Resident Utilities - Int 2Fh - N
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