Messages in this thread | | | Date | Wed, 30 Apr 2003 14:18:40 -0700 | From | "H. Peter Anvin" <> | Subject | Re: Bootable CD idea |
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John Bradford wrote: > > Ah, it makes more sense now :-). So, could I bodge 2.4 in to working > by modifying bootsect.S with something like this? > > > movw $disksizes+1, %si # Force 18 sectors/track > probe_loop: > lodsb > cbtw # extend to word > xchgw %cx, %ax # %cx = track and sector > xorw %dx, %dx # drive 0, head 0 > movw $0x0200, %bx # address = 512, in INITSEG (%es = %cs) > movw $0x0201, %ax # service 2, 1 sector > int $0x13 > movb $0x03, %ah # read cursor pos > xorb %bh, %bh > > John.
Perhaps you could, but why the fsck do you want to beat a dead horse over and over again? Use a real bootloader instead.
-hpa
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