Alternate Reset Disk; Read Test Buffer; Write Test Buffer - Husky MP2500 Manual

Alternate reset disk

Entry
Exit
Description

Read test buffer

Entry
Exit
Description

Write test buffer

Entry
Exit
Description
Chapter 24: INT 13H, Disk Handler
AH=0DH
DL=80H (drive 0) or 81H (drive 1)
AH=status
CF=error flag
Recalibrates the specified disk drive's heads without
resetting the diskette system.
AH=0EH
DL=80H (drive 0) or 81H (drive 1)
ES:BX=pointer to diagnostic buffer
AH=status
CF=error flag
Reads a test buffer from the specified fixed disk
controller into the diagnostics buffer specified by
ES:BX. Data is NOT read from the actual disk drive.
AH=0FH
DL=80H (drive 0) or 81H (drive 1)
ES:BX=pointer to diagnostic buffer
AH=status
CF=error flag
Writes a test buffer to the specified fixed disk controller
from the diagnostics buffer specified by ES:BX. Data is
NOT written to the actual disk drive.
This function should be called before using function
05H to format the drive.
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