Category: <b>vendor-specific BIOS extensions</b>
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<pre><b>INT 61 - Atari Portfolio - DETERMINE CCM VALIDITY</b>

	AH = 0Bh
	AL = drive number (00h = A:,01h = B:)
Return: CF clear if successful (card present and correct)
	CF set on error
	    AH = error code (see <a href=../../it/34/2.html>#00234</a> at INT 13/AH=01h)
SeeAlso: AH=00h"Portfolio",AH=07h"Portfolio",AH=0Dh"Portfolio"
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