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reserved addresses in memory besides 0x7c00
Posted: Wed Feb 10, 2010 2:14 pm
by Merdini
Okay, so the bootloader are located at 7c00 to 7e00, right? 7c00 + 512bytes?
Are there any more reserved addresses? Can i overwrite 7c00 later when i've left the bootloader?
I want to use up all my memory, starting from the very first sector/address, is the first 0000:0000?
Thanks
Re: reserved addresses in memory besides 0x7c00
Posted: Wed Feb 10, 2010 2:23 pm
by Coty
When your boot loader is no longer needed I do not see why not.
You may want to take a look at thist:
http://mirror.href.com/thestarman/asm/d ... ments.html
It will explain memory segments fully, or atleast start you off.
Re: reserved addresses in memory besides 0x7c00
Posted: Wed Feb 10, 2010 2:29 pm
by qw
Re: reserved addresses in memory besides 0x7c00
Posted: Wed Feb 10, 2010 2:40 pm
by Merdini
Thanks coddy.
I understand how it works, just not which address to start with but your link seems to explain it.
Hobbes:
Read my signature.
Re: reserved addresses in memory besides 0x7c00
Posted: Wed Feb 10, 2010 3:01 pm
by Coty
I'd check Hobbes links again, The "Memory Map (x86)" link seems to have the answer in it.
Not als well explained, but it gives a good memory map.
It may actually explain a bit more.
Re: reserved addresses in memory besides 0x7c00
Posted: Wed Feb 10, 2010 3:26 pm
by qw
You may reconsider your signature.
Re: reserved addresses in memory besides 0x7c00
Posted: Wed Feb 10, 2010 3:47 pm
by Combuster
Hobbes wrote:You may reconsider your signature.
+1.
As it turns out, people who deny STFWs or RTFMs in advance actually never properly do their homework. And IMSNHO, posting a listed
FAQ question with that in your signature borders on trolling.