INT 2F U - NLSFUNC.COM - CHANGE CODE PAGE
AX = 1401h
DS:SI -> internal code page structure (see below)
BX = new code page
DX = country code???
Return: AL = status
00h successful
else DOS error code
Note:   called by DOS v3.3+ kernel
SeeAlso: AX=1402h"NLSFUNC",INT 21/AH=66h

Format of DOS 3.30 internal code page structure:
Offset  Size    Description
00h  8 BYTEs   ???
08h 64 BYTEs   name of country information file
48h    WORD    system code page
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

See also: 2F1400

2F1401 - NLSFUNC.COM - CHANGE CODE PAGE