problem in understanding masterboot.s - Minix

This is a discussion on problem in understanding masterboot.s - Minix ; At the begin of finding the active partition(masterboot.s, line 58), DL register is used, but not initialized. Does BIOS set DL to some value to indecate the device from which the MBR is loaded? thanks...

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Thread: problem in understanding masterboot.s

  1. problem in understanding masterboot.s

    At the begin of finding the active partition(masterboot.s, line 58), DL
    register is used, but not initialized. Does BIOS set DL to some value
    to indecate the device from which the MBR is loaded?

    thanks


  2. Re: problem in understanding masterboot.s

    yes, BIOS sets dl.

    Christos

    > At the begin of finding the active partition(masterboot.s, line 58), DL
    > register is used, but not initialized. Does BIOS set DL to some value
    > to indecate the device from which the MBR is loaded?
    >
    > thanks
    >




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