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Assembly Memory Deallocation in Lua

 
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ParkourPenguin
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PostPosted: Thu Oct 29, 2015 3:18 pm    Post subject: Assembly Memory Deallocation in Lua Reply with quote
When using autoAssemble(String) in Lua, I can't seem to deallocate memory via dealloc(). Here's an example:
Code:
function allocMem()
  autoAssemble([[
    alloc(newmem,1024)
    registersymbol(newmem)
  ]])
end

function deallocMem()
  autoAssemble([[
    dealloc(newmem)
    unregistersymbol(newmem)
  ]])
end


When I call allocMem(), it does everything just fine. I can go into memory view and look at the memory it allocated. But, when I call deallocMem(), it unregisters the symbol "newmem", but it doesn't actually deallocate the memory (the address where newmem was is still filled with 00).

In a similar AA script, this code works just fine:
Code:
[ENABLE]
alloc(newmem2,1024)
registersymbol(newmem2)

[DISABLE]
dealloc(newmem2)
unregistersymbol(newmem2)

When it's disabled, newmem2 is unregistered, and the address where it was at is filled with ??.

Am I doing something stupid in the Lua script, or is this a bug?
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Dark Byte
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PostPosted: Thu Oct 29, 2015 3:34 pm    Post subject: Reply with quote
Not a bug. Autoassembler dealloc only works in table entries. (And only if all allocs of the enable section have been specified, else nothing will be freed)
Lua scripts don't have a list of all the allocs, so it can't pass that to the disable section (it doesn't even have the option to tell it to run the disable part)

If this is an issue, try globalalloc so you don't constantly allocate a new block, or use the addresslist, add an entry with the script and activate/deactivate that
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