OS_DynamicArea 5
OS_DynamicArea
ยป OS_DynamicArea 5
OS_DynamicArea 5
(SWI &66)
| Entry | |
|---|---|
| R0 | 5 (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 (bytes) |
Use
The purpose of this call is to return the total free space, in bytes.
The returned value will be clamped at 2GB-PageSize in order to try and avoid any issues relating to signed number overflow. To avoid this clamping, use OS_DynamicArea 27.
See also
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