User`s manual

DIGITAL-LOGIC AG MSLB-P5 Manual V0.3
PRELIMINARY 173
Continued
AH = 09h Initialize drive parameters
Entry:
DL Drive number (80H-81H)
AH = 0Ah Read long sector
Entry:
ES:BX Buffer address
DL Drive number (80H-81H)
DH Head number
CH Cylinder number
CL Sector number/Cyl high
AL Number of sectors
Exit:
AL Number of sectors transferred
AH = 0Bh Write long sector
Entry:
ES:BX Buffer address
DL Drive number (80H-81H)
DH Head number
CH Cylinder number
CL Sector number/Cyl high
AL Number of sectors
Exit:
AL Number of sectors transferred
AH = 0Ch Seek drive
Entry:
ES:BX Buffer address
DL Drive number (80H-81H)
DH Head number
CH Cylinder number
CL Cylinder high
AH = 0Dh Alternate disk reset
Entry:
DL Drive number (80H-81H)
AH = 10h Test drive ready
Entry:
DL Drive number (80H-81H)
AH = 11h Recalibrate drive
Entry:
DL Drive number (80H-81H)
AH = 14h Controller diagnostic
Entry:
DL Drive number (80H-81H)
AH = 15h Read drive type
Entry:
DL Drive number (80H-81H)
Exit:
AH 00 = Drive not present
01 = Drive cannot detect media change
02 = Drive can detect media change
03 = Fixed disk
CX High word of number of 512-byte blocks
DX Low word of number of 512-byte blocks