Can't access memory region

Jason Philip mored1759 at gmail.com
Tue Feb 1 00:05:53 CET 2011


I need to have access to the VGA port and register. The register I
need access in the range of 0x300 to 0x400 so I try getting a 1KB
page from 300 onward, but it do not work. I suspect it do not work
because it is I/O FPage and they have to align to (in this case 1kB)
address. Could anyone help me access these port?





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