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Function  44h   I/O Control for Devices (IOCTL)  Get or Set Device Information

entry   AH      44h 

	AL	04h	Read From Block Device (drive number in BL)

			BL      drive number (0=default) 

			CX      number of bytes to read 

			DS:DX   pointer to buffer 

			return  AX      number of bytes read
file: /Techref/int/21f/44sf/04.htm, 0KB, , updated: 1999/4/26 12:36, local time: 2025/5/4 04:16,
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