INT 21,66 - Get/Set Global Code Page (DOS 3.3+)

AH = 66h

AL = 01 get global code page

= 02 set global code page

BX = active code page if setting

DX = system code page if setting

on return

AX = error code if CF set (see ~DOS ERROR CODES~)

BX = active code page (for AL=1 only)

DX = system code page (for AL=1 only)

- moves country data from COUNTRY.SYS to country memory table