Programming Forums > Application Development > Assembly

darthsabbath · Apr 5th, 2006, 7:55 PM

Hi, all, I have a question regarding a procedure that we do at the OEM I work for. It is recommended that, before formatting and installing Windows, we enter the following using the old DOS debug utility. To my best guess, this is essentially the same as running Fdisk... is this correct? I know NOTHING of assembly at this time, so I'm only assuming this is the right place to ask. I just basically want to know... is there ANY advantage to doing this over a standard Fdisk and Format?

Anyway, here are the goods...

(Toggle Plain Text)

prompt with - symbol appears:  Type A 100 
Press enter 
will see:  nnn:0100 
Type:  INT 13 
Press enter 
will see nnn:0102 
press ENTER 
will see blinking cursor 
Type:  RAX 
Press enter 
will see AX 0000 : 
Type 0301 
Press enter 
will see blinking cursor 
Type RBX 
Press enter 
will see BX 0000: 
Type 0200 
Press enter 
will see blinking cursor 
Type F 200 L 200 0 
Press enter 
will see blinking cursor 
Type RCX 
Press enter 
Will see CX 0000: 
Type 0001 
Press enter 
will see Blinking cursor 
Type RDX 
Press enter 
Wil see DX 0000: 
Type 0080 
Press enter 
will see blinking cursor 
Type P 
Press enter 
will see blinking cursor 
Type Q 
Press enter

Thanks,
Phil

Apr 5th, 2006, 7:55 PM	#1
darthsabbath Newbie Join Date: Dec 2005 Posts: 15 Rep Power: 0	The Debug Utility Hi, all, I have a question regarding a procedure that we do at the OEM I work for. It is recommended that, before formatting and installing Windows, we enter the following using the old DOS debug utility. To my best guess, this is essentially the same as running Fdisk... is this correct? I know NOTHING of assembly at this time, so I'm only assuming this is the right place to ask. I just basically want to know... is there ANY advantage to doing this over a standard Fdisk and Format? Anyway, here are the goods... (Toggle Plain Text) prompt with - symbol appears: Type A 100 Press enter will see: nnn:0100 Type: INT 13 Press enter will see nnn:0102 press ENTER will see blinking cursor Type: RAX Press enter will see AX 0000 : Type 0301 Press enter will see blinking cursor Type RBX Press enter will see BX 0000: Type 0200 Press enter will see blinking cursor Type F 200 L 200 0 Press enter will see blinking cursor Type RCX Press enter Will see CX 0000: Type 0001 Press enter will see Blinking cursor Type RDX Press enter Wil see DX 0000: Type 0080 Press enter will see blinking cursor Type P Press enter will see blinking cursor Type Q Press enter prompt with - symbol appears: Type A 100 Press enter will see: nnn:0100 Type: INT 13 Press enter will see nnn:0102 press ENTER will see blinking cursor Type: RAX Press enter will see AX 0000 : Type 0301 Press enter will see blinking cursor Type RBX Press enter will see BX 0000: Type 0200 Press enter will see blinking cursor Type F 200 L 200 0 Press enter will see blinking cursor Type RCX Press enter Will see CX 0000: Type 0001 Press enter will see Blinking cursor Type RDX Press enter Wil see DX 0000: Type 0080 Press enter will see blinking cursor Type P Press enter will see blinking cursor Type Q Press enter Thanks, Phil

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Programming Forums > Application Development > Assembly

The Debug Utility