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Operatio n
Disk reset
R eading disk drive
data
R eading sector
App-22
Input
00h
AH =
Drive No.
DL =
(FDD:00h-01h; HDD:
80h-81h)
01h
AH =
Drive No.
DL =
(FDD:00h- 01h, HDD:
80h- 81h)
AH =
02h
AL =
Number of s ectors
C H =
Track No.
C L =
S ector No.
C H =
C y linder No.
C L =
Ins ignificant 8 bits
S ector No. (B its 0 - 6)
=
C y linder No.
S i g nificant 2 bits (Bits
DH =
7 - 8)
DL =
Head No.
Drive No. (FDD: 00h -
E S :B-
01h, HDD: 80h - 81h)
X =
B uffer address
O utput
C Y=
0: S u cces s f u lly completed
=
1: Error
AH =
S t a tus
F l o ppy dis k s tatus table
S t a tus
Des cription
S u cces s f u lly completed
Wrong command s ent
00h:
C annot find address mark.
01h:
Atte mpted writing on
02h:
protected disk
03h:
C annot find reques ted
04h:
s ector.
06h:
Dis k was changed.
08h:
DMA overrun
10h:
C RC error during diskette
20h:
reading
40h:
C rashed FDC
80h:
C rashed during seek
operation
Timer overflowed
Hard dis k s tatus table
S t a tus
Des cription
S u cces s f u lly completed
00h:
Wrong command s ent
01h:
C annot find address mark.
02h:
C annot find reques ted
04h:
s ector.
07h:
Drive parameter error
08h:
DMA overrun
10h:
Error during reading
20h:
C rashed HDC
40h:
C rashed during seek
80h:
operation
B B h :
Timer overflowed
Undefined error
AH = Disk drive s tatus
C Y=
0: S u cces s f u lly completed
=
1: Error
AH =
S t a tus
PL-5700 Series User's Manual
Appendix
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