This function call can be captured by a program so that it will be notified as each cylinder is formatted or analyzed. The program can count interrupts for each phase to determine the current cylinder number.Invoked by the ROM BIOS on the ESDI Fixed Disk Drive Adapter/A during a format or surface analysis operation after each cylinder is completed.
Call with:
AH = 0FH
AL = phase code
0 = reserved
1 = surface analysis
2 = formatting
Returns:
If formatting or analysis should continue
Carry flag = clear
If formatting or analysis should be terminated
Carry flag = set
Notes:
This function call can be captured by a program so that it will be notified as each cylinder is formatted or analyzed. The program can count interrupts for each phase to determine the current cylinder number.
The default ROM BIOS handler for this function returns with the carry flag set.