h6. [[OS_DynamicArea]] h6(. » OS_DynamicArea 27 h2. OS_DynamicArea 27 h5. (SWI &66) |_<^{width:3em}. Entry | | |<^. R0 |<^. 27 (reason code) | |<^. R1 |<^. Number of single [[Shrinkable Dynamic Areas|shrinkable]] areas to exclude from sum, or -1 to include all shrinkable areas | |_<^{width:3em}. Exit | | |<^. R0 |<^. Preserved | |<^. R1 |<^. Preserved | |<^. R2 |<^. Total amount of free space (pages) | h4. 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. h4. See also * [[OS_DynamicArea]] * [[OS_DynamicArea 5]] * [[Shrinkable Dynamic Areas]]