* R0 = Start of range of addresses to unlock.
R1 = End of range of addresses to unlock.
* All registers preserved.
Purpose: Unlock pages of a dynamic area for which virtual memory has been enabled.
Interrupts: Interrupt status is undefined.
Fast interrupts are enabled.
Processor mode: Processor is in SVC mode.
Re-entrancy: SWI is not re-entrant.
Use: This SWI unlocks pages that were previously locked with Virtualise_Lock. Exactly the same values of R0 and R1 should be used when unlocking pages as were used when they were originally locked; unpredictable results might otherwise occur.
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