Showing changes from revision #0 to #1:
Added | Removed | Changed
Entry | |
---|---|
R0 | 9, all flag bits reserved |
R1 | Controller number |
Exit | |
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R0 | Preserved |
R1 | Controller base address, or 0 if not present |
The purpose of this call is to check for the presence of a given controller and return its base address if present.