Hi.
I'm reading the code /usr/src/sys/boot/i386/boot0/boot0.s.
And i've found that the FreeBSD Boot Manager is really smart & cool.
But i've got some problems in this source code.

I got puzzled from this line: cmpb cmpb NHRDRV,%al.
I don't know what it's for and got no idea about the following code either.

Could anyone give me hint a point?
Or any resources where i could get more info?

Thanks.



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