OS_DynamicArea 27 (changes)
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OS_DynamicArea
ยป OS_DynamicArea 27
OS_DynamicArea 27
(SWI &66)
| Entry | |
|---|---|
| R0 | 27 (reason code) |
| R1 | Number of single shrinkable areas to exclude from sum, or -1 to include all shrinkable areas |
| Exit | |
|---|---|
| R0 | Preserved |
| R1 | Preserved |
| R2 | Total amount of free space (pages) |
Use
The purpose of this call is to return the total free space, in pages.
This call supersedes OS_DynamicArea 5, which returns a 32-bit byte count of free free space, thus preventing it from returning an accurate value if there are many gigabytes of free RAM.
See also
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