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KunYi avatar KunYi commented on May 22, 2024

0x55 & 0xAA 應該是 01010101 & 10101010 因為那個年代硬體不可靠 選的可以比較容易檢驗出來硬體問題 XD
不能因為是讀Linux source code 而忽略IBM PC 誕生時的狀況 這也是那個年代BIOS 開機要做POST 很多硬體檢測的原因
現代UEFI 都不做這些檢測只做硬件初始化了

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244981745 avatar 244981745 commented on May 22, 2024

@ KunYi 附议，看0x07c00的时候就有点疑惑，看到0x55aa疑惑就更大了，难道这就是苹果跟图灵的坊间传说同一个生产厂商？

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KunYi avatar KunYi commented on May 22, 2024

0x7C00, https://zhuanlan.zhihu.com/p/38433204 可以參考這篇

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