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lesson 7, reading from disk

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Carlos Fenollosa 2014-10-08 21:01:56 +02:00
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07-bootsector-disk/README.md
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@ -50,5 +50,9 @@ read it.
**Note: if you keep getting errors and your code seems fine, make sure that qemu **Note: if you keep getting errors and your code seems fine, make sure that qemu
is booting from the right drive and set the drive on `dl` accordingly** is booting from the right drive and set the drive on `dl` accordingly**
Try the flag `-fda` for example, qemu -fda boot_sect_main.bin` and set `dl` as `0x00` The BIOS sets `dl` to the drive number before calling the bootloader. However,
I found some problems with qemu then booting from the hdd.
Try the flag `-fda` for example, `qemu -fda boot_sect_main.bin` which will set `dl`
as `0x00`, it seems to work fine then.