The PMMU functions-handler
ClearPageMode
GetPageSize
| Name: | »GetHdv_inuse« - Obtain the activity of the hard disk driver.
|
| Number: | 4
|
| Declaration: | UWORD *GetHdv_inuse ( VOID );
|
| Description: | The call GetHdv_inuse enables one to check whether the hard
disk driver is currently in the process of swapping a page from or to
RAM.
Note: A check of this WORD must be made before the virtual RAM is accessed from an interrupt routine. This is because the hard disk driver may not be interrupted by an access to a non-existing memory page if it is currently offloading another page. If the status WORD is non-zero, the access has to be delayed. |
| Return value: | The function returns a pointer to the hdv_inuse WORD.
|
| Group: | PMMU functions-handler
|
| See also: | ClearPageMode GetPageSize pmem_size PMMUversion
SetPageMode vmem_size
|
The PMMU functions-handler
ClearPageMode
GetPageSize