CD_Prefetch
CDFSDriver
» SWI Calls
» CD_Prefetch
CD_Prefetch
(SWI &41259)
| Entry | |
|---|---|
| R0 | Addressing mode |
| R1 | Address |
| R7 | Pointer to CDFS Control Block |
| Exit | |
|---|---|
| - | - |
Use
The purpose of this call is to cause the drive head to move to the indicated position and start prefetching data into the drives’ cache, improving access times if the next read operation targets that address.
Notes
CD_Supported can be used to determine whether the drive supports this operation.
See also
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