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OS_Memory 25
OS SWI Calls
» OS_Memory
» OS_Memory 25
OS_Memory 25
(SWI &68)
| Entry | |
|---|---|
| R0 | 25, all flag bits reserved |
| R1 | Controller number |
| Exit | |
|---|---|
| R0 | Preserved |
| R1 | Controller base physical address |
Use
The purpose of this call is to check for the presence of a given controller and return its base physical address if present.
This call was created by RISCOS Ltd. to complement OS_Memory 9. The two calls use identical controller numbers. There is currently no support for this call under RISC OS 5.
See also
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