18

Brief

Get current directory

Input

DL = drive number (00h = default, 01h = A:, etc)

DS:SI → 64-byte buffer for ASCIZ pathname

Return

CF clear if successful

AX = 0100h (undocumented)

CF set on error

AX = error code (0Fh) (invalid drive)

Notes

the returned path does not include a drive or the initial backslash

many Microsoft products for Windows rely on AX being 0100h on success

See also

SVC API
Supervisor calls	0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85
Structures	FCB XFCB FILETIME FILEDATE