INT 21 - MS-DOS 7.0+ - CONFIG$ device - GET CONFIGURATION INFORMATION AX = 4402h BX = file handle for character device "CONFIG$" CX = number of bytes to read (at least 5) DS:DX -> buffer for ??? data (see #01444) Return: CF clear if successful AX = number of bytes actually read CF set on error AX = error code (01h,05h,06h,0Dh) (see #01680 at AH=59h/BX=0000h) SeeAlso: AX=4403h"CONFIG$"
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