Hard drive debug command

Debug Script to Erase Hard-Disk Partition Table
	You see	You Type	What it does
	-	A 100	Assemble from CS:0100
	nnnn:0100	INT 13	Call interrupt 13
	nnnn:0102		nnnn in the segment address ; No entry, just hit the enter key.
	-	RAX	Replace AX register
	AX 0000:	0301	Write on sector
	-	RBX	Replace BX register
	BX 0000:	0200	Start from ES:200
	-	F 200 L 200 0	We want to write zeros
	-	RCX	Replace CX register
	CX 0000:	0001	Cylinder 0, sector 1
	-	RDX	Replace DX register
	DX 0000:	0080	First physical hard disk, head 0. (Substitute 0081 for this entry if you are clearing the table on the second physical hard disk, 0082 if you are clearing the third physical hard disk, and so forth).
	-	P	Proceed (Debug will display several lines of information).
	-	Q	Quit Debug, this will return you to an a: