Re: Mapping Video BIOS?
"M. Warner Losh" <[email protected]>
| Newsgroups | gmane.os.freebsd.current,gmane.os.freebsd.devel.mobile |
|---|---|
| Message-ID | <[email protected]> |
In message: <[email protected]> "Greg 'groggy' Lehey" <[email protected]> writes: : Sure. The data at offset 0xc0000 are: : : C000:0000 55 AA 78 E9 44 06 00 00-00 00 00 00 00 00 00 00 U.x.D........... : : The 0xaa55 is the BIOS signature ("Here be a BIOS"), and the 0x78 is : the length byte (120 sectors, or 60 kB). That's how orm0 knows the : end address. : : > I don't think that it suggests that things are 'unmapped'... : : If the area between 0xcc000 and 0xcffff had been mapped, orm0 would : have found this too: : : C000:F000 55 AA 08 E8 6D 0B CB 11-FE 02 00 00 00 00 00 00 U...m........... 08 -> 4k It could also be that there's a bug in orm that's missing it... Warner _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "[email protected]"