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RISCOS_ReleasePhysicalAddress
Hardware Abstraction Layer
» RISC OS entry points from HAL
» RISCOS_ReleasePhysicalAddress
RISCOS_ReleasePhysicalAddress
(OS entry #??)
void RISCOS_ReleasePhysicalAddress(void *old)
| Entry | |
|---|---|
| old | State returned from a previous call to RISCOS_AccessPhysicalAddress |
| MMU on | |
| FIQs on | |
| Re-entrant |
Use
Call with the a value output from a previous RISCOS_AccessPhysicalAddress.
Example
void *old; unsigned int *addr = (unsigned int *) 0x80005000; unsigned int *addr2 = (unsigned int *) 0x90005000; addr = (unsigned int *) RISCOS_AccessPhysicalAddress(addr, &old); addr[0] = 3; addr[1] = 5; addr2 = (unsigned int *) RISCOS_AccessPhysicalAddress(addr2, NULL); *addr2 = 7; RISCOS_ReleasePhysicalAddress(old);