OS_ReadMemMapInfo (changes)
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OS SWI Calls
» OS_ReadMemMapInfo
OS_ReadMemMapInfo
(SWI &51)
| Entry | |
|---|---|
| - | - |
| Exit | |
|---|---|
| R0 | Page size in bytes |
| R1 | Number of pages |
Use
The purpose of this call is to read the page size used by the memory controller and the number of pages in use.
Notes
Valid page numbers are 0 to R1-1, and the total memory size is R0*R1. It’s recommended to calculate this as a 64bit 64 bit value, as modern systems may have over 4GB ofRAM.
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