�� �� right now vm parameter 23 is defined to be:

23 bytes of extra memory to reserve for VM buffers, plugins, etc.

but is ignored by all the VMs (AFAIA).�� I would like to reinterpret this in Spur to be the minimum amount of headroom to make available on startup.�� I expect this is useful for really small platforms where one wants to control the ammount of free space on startup to be quite small.�� Given that the field is ignored I like putting it to a more useful purpose. �� Objections?
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