Convert from/to CHS-LBA

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I have the following formulas to convert CHS-to-LBA and LBA-to-CHS. I think they are right because they seem to work fine with floppies:

Code: Select all

CHS_to_LBA = (((Sectors_Per_Track*NumHeads)*Track)+(Sectors_Per_Track*Head)+Sector)-1;

Code: Select all

Cylinder = (int)(LBA/(Sectors_Per_Track*NumHeads));
Head     = (int)(LBA/Sectors_Per_Track)%NumHeads;
Sector   = (int)(LBA%Sectors_Per_Track)+1;

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Now the question is: Will those formulas work seamlessly both for any capacity floppies, and even for ATA disks that are addressed using CHS?

Or are there another many CHS-to-LBA-to-CHS conversion formulas I should need to know, that somebody knows about?

[muisei]

Take a look at this tutorial