Category: <b>runtime support</b>
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<pre><b>INT BF - IBM ROM BASIC - used while in interpreter</b>

Notes:	called by ROM BASIC, but pointed at IRET by BASIC.COM/BASICA.COM
	BASIC.COM/BASICA.COM do not restore vector on termination
SeeAlso: INT 80"BASIC",INT BE"BASIC",INT C0"BASIC"
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