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19
Brief
Set current directory
Input
- 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