Appendix
PL-6700 Series User Manual
App-14
INT 13h Disk BIOS
Operation
Input
Output
Disk reset
AH =
DL =
00h
Drive No.
(FDD:00h-01h;HDD:80h -81h)
CY =
=
AH =
0: Successfully completed
1: Error
Status
Floppy disk status table
Status
Description
00h:
01h:
02h:
03h:
04h:
06h:
08h:
10h:
20h:
40h:
80h:
Successfully completed
Wrong command sent
Cannot find address mark.
Attempted writing on protected
disk
Cannot find requested sector.
Disk was changed.
DMA overrun
CRC error during diskette
reading
Crashed FDC
Crashed during seek operation
Timer overflowed
Hard disk status table
Status
Description
00h:
01h:
02h:
04h:
07h:
08h:
10h:
20h:
40h:
80h:
BBh:
Successfully completed
Wrong command sent
Cannot find address mark.
Cannot find requested sector.
Drive parameter error
DMA overrun
Error during reading
Crashed HDC
Crashed during seek operation
Timer overflowed
Undefined error
Reading disk drive data
AH =
DL =
01h
Drive No.
(FDD: 00h- 01h, HDD: 80h -81h)
AH = Disk drive status
Reading sector
AH =
AL =
CH =
CL =
CH =
CL =
=
DH =
DL =
ES:BX =
02h
Number of sectors
Track No.
Sector No.
Cylinder No.
Insignificant 8 bits
Sector No. (Bits 0 - 6)
Cylinder No.
Significant 2 bits (Bits 7 - 8)
Head No.
Drive No. (FDD: 00h - 01h,
HDD: 80h - 81h)
Buffer address
CY =
=
AH =
0: Successfully completed
1: Error
Status
4 BIOS Lists
Summary of Contents for PL-6700 Series
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