Category: <b>BIOS</b>
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<pre><b>INT 15 - later PS/2s - GET PHYSICAL FIXED DISK DRIVE NUMBER (SELECTABLE BOOT)</b>

	AH = D4h
	DL = logical fixed disk drive number
Return: AH = return code (see <a href=../../it/37/5.html>#00537</a>)
	CF set on error
	CF clear on success
	    AL = physical fixed disk drive number

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