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Desc: The low word of this vector contains the system memory size in paragraphs; the third byte contains the number of outstanding interrupt requests, and the fourth byte contains a description of the installed drive types (see #03517)
See Also: INT 60"TI Professional PC" - INT 67"TI Professional"
Bitfields for TI Professional drive type information: Bit(s) Description (Table 03517)
7 floppy drive D:
Has 80 tracks6 floppy drive D:
Is double-sided5 floppy drive C:
Has 80 tracks4 floppy drive C:
Is double-sided3 floppy drive B:
Has 80 tracks2 floppy drive B:
Is double-sided1 floppy drive A:
Has 80 tracks0 floppy drive A:
Is double-sided
Category: Vendor-specific BIOS Extensions - Int 66h - T
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