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AH = 3Bh DS:DX -> ASCIZ pathname to become current directory (max 64 bytes)
Return:
CF clear if successful AX destroyed CF set on error AX = error code (03h) (see #01680 at AH=59h/BX=0000h)
Notes: If new directory name includes a drive letter, the default drive is not changed, only the current directory on that drive. Changing the current directory also changes the directory in which FCB file calls operate. Under the FlashTek X-32 DOS extender, the pointer is in DS:EDX
See Also: AH=47h - AX=713Bh - INT 2F/AX=1105h
Category: DOS Kernel - Int 21h - D
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