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17 lines
724 B
Plaintext
17 lines
724 B
Plaintext
Then, it's a matter of adding layer after layer. For most
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system, all those layers except the drivers will be added the
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same way. Drivers are a bit tricker and machine specific. I
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can't help you there, you'll have to use your wits.
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After we've loaded the high part of the core words, we're at
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the "wrapping up" part. We add what we call a "hook word" (an
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empty word with a single letter name) which doesn't cost us
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much and can be very useful if we need to augment the binary
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with more words, and at that point we have our future boot
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CURRENT, which PC yields. That is why we write it to the
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LATEST field of the stable ABI: This value will be used at
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boot.
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(cont.)
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