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在 github 上翻阅旧的 MS dos 源代码,我发现了一些奇怪的注释,如下所示。

;Now we must load the FAT from the disk. Here's how we    
;find out where it starts: 

;FAT cluster 0 = media descriptor = 0F0h
;FAT cluster 1 = filler cluster = 0FFh
;Cluster start = ((cluster number) - 2) * SectorsPerCluster 
+ (start of user) = (cluster number) + 31

谁能解释这些?

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