multiboot information structure flags are confusing me

[Timmy Douglas]

i want to enable some flags for the multiboot information
structure. so i can get some VBE info.

however, the docs talk about two separate groups of flags: the ones in
the binary header and the multiboot info flags. it says that the
multiboot info pointer is passed in %ebx (or whatever) to the main
function, but how can i set the flags so grub can put what i want in
the structure?

it wouldn't make sense if the flags in the binary were the same as the
flags in the info structure, because they have conflicting bit
positions.