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DOS 4.0+ - COUNTRY-DEPENDENT CHARACTER CAPITALIZATION

AH = 65h
AL = function
20h capitalize character
DL = character to capitalize
Return:
DL = capitalized character
21h capitalize string
DS:DX -> string to capitalize
CX = length of string
22h capitalize ASCIZ string
DS:DX -> ASCIZ string to capitalize

Return:
CF set on error
AX = error code (see #01680 at AH=59h/BX=0000h)
CF clear if successful

Note: These calls have been documented for DOS 5+, but were undocumented in DOS 4.x.

BUG: Novell DOS 7 Update 15 crashes on AX=6521h when CX=0000h

Category: DOS Kernel - Int 21h - D

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