Re: Reset code location?

["Jayson Smith" <ihatespamratguynospamplease@insightbb.spamsucks.com>]

Wow, thanks! I just did a totally useless thing which I'd be surprised if 
some developer of copy protected software didn't do, just to annoy pirates!
Step 1. Point the Reset vector at the Reset code.
Step 2. Hit Reset.
Result? Reset, jump through reset vector, reset, jump through reset vector, 
reset, jump through reset vector, forever and ever. Beep beep beep beep beep 
beep goes the speaker. Only way out of this loop is to hold down Open Apple 
to make the reset code reboot, or flip the switch or pull the plug!
Jayson

"Don" <numberfiveplusone@gmail.com> wrote in message 
news:_Wgbn.285$zN4.181@newsfe05.iad...
> "Jayson Smith" <ihatespamratguynospamplease@insightbb.spamsucks.com> wrote 
> in message qridnaceu7a1C_DWnZ2dnUVZ_gednZ2d@insightbb.com">news:qridnaceu7a1C_DWnZ2dnUVZ_gednZ2d@insightbb.com...
>> Here's a silly question. Where is the code on an Apple that runs the 
>> instant you hit Reset or switch the power on. Or is there some special 
>> code not anywhere in accessible ROM or something? In other words, if a 
>> program wanted to trigger the series of events that goes with hitting 
>> Reset, E.G. beep, check the power-on byte, go through the reset vector if 
>> valid, otherwise scan for a disk controller and boot, could it do it, and 
>> how would it go about doing this?
>> Thanks.
>>
>>
> IIRC the 6502 jumps to the address specified by locations FFFC-FFFD when 
> the RESET line is asserted.  If you check that location (it's in ROM) you 
> should find the address of the Apple reset routine.  [BTW: FFFE-FFFF is 
> the IRQ vector and FFFA-FFFB s the NMI (Non-Maskable Interrupt) vector.]
> -- 
> be seeing you ... Don
> Don Melton, Sr. Consultant, Vatic Technologies Limited
>