Determines the quantity of available memory at a given time

By | July 30, 2015

There may be a scenario where we need to check if there is enough available memory for executing any tasks.

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“Freemem” is used to determine the quantity of available memory at a given time. Below code snippet gives the total memory available to use within a system.


The freemem function returns the number of bytes not used in memory at a given time. This number corresponds to all buffers that have not been used – whether contiguous or not.

Due to memory fragmentation, we can never be sure of having the space to load an OBJect (a screen of 32K, for example) while the size of the remaining memory is much larger (1024K, for example). Therefore, the value returned by freemem is purely indicative.

The result of the function is of the Integer type.

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