OS_SetMemMapEntries
OS SWI Calls
» OS_SetMemMapEntries
OS_ SetMemMapEntries
(SWI &53)
| Entry | |
|---|---|
| R0 | Pointer to request block |
| Exit | |
|---|---|
| R0 | Block at R0 updated |
Use
The purpose of this call is to set the logical to physical mapping of the memory pages.
Notes
Use of this call is discouraged. OS_Memory 0 and the facilities offered by user-created dynamic areas should be considered as alternatives to using this call.
If you are using this call, then you can only use OS_ChangeDynamicArea or other memory management SWIs if the kernel’s limits are maintained, and all appropriate areas contain continuous memory.
Prior to RISC OS 5, only the lower two bits of the page flags were used – the other bits were forced to zero.
See also
Social
Follow us on
and
and
ROOL Store
Buy RISC OS Open merchandise here, including SD cards for Raspberry Pi and more.