See: Fn 440cH 45H (set iteration count)             3.3+

Fn 440cH 4aH (select a prepared code page)     3.3+
Fn 440cH 4cH (begin preparing a code page)     3.3+
Fn 440cH 4dH (done preparing a code page)      3.3+

Fn 440cH 5fH (set display information)         4.0+
Fn 440cH 65H (query retry iteration count)     3.3+

Fn 440cH 6aH (query active code page)          3.3+
Fn 440cH 6bH (get list of prepared code pages) 3.3+

Fn 440cH 7fH (query display information)       4.0+

Info: These functions require a "minor code" value in the CL register
as well as the 440cH in AX.

See Also: Fn 44H (IOCTL)
Fn 440dH (generic IOCTL for block devices)
- -

DOS Fn 440cH: Generic I/O Control -- Character Devices