Disk I/O Support
for
the Floppy Only
System Configuration
Software Interrupt:
13
hex (19 dec)
Function Summary:
AH
= 0:
Reset Floppy Disk
AH
= 1:
Return Status
of
Last Floppy Disk Operation
AH
= 2:
Read Sector(s) from Floppy Disk
AH
= 3:
Write Sector(s)
to
Floppy Disk
AH
= 4:
Verify Sector(s)
on
Floppy Disk
AH
= 5:
Format Track
on
Floppy Disk
Function Descriptions:
Reset Floppy Disk
Reset the diskette system. Resets associated hardware and
recalibrates all diskette drives.
Entry Conditions:
AH
= 0
Exit Conditions:
See "Exits From
All
Calls" below.
Return Status of Last Floppy Disk Operation
Return
the
diskette status
of
the last operation
in AH.
Entry Conditions
AH
= 1
Exit Conditions:
AL
=
status
of the
last operation;
see
"Exits From
All
Calls"
below
for
values
Read Sector(s) from Floppy Disk
Read
the
desired sector(s) from disk into RAM.
19
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