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StackSwap - EXEC supported method of replacing task's stack (V37)
StackSwap(newStack)
A0
VOID StackSwap(struct StackSwapStruct *);
This function will, in an EXEC supported manner, swap the
stack of your task with the given values in StackSwap.
The StackSwapStruct structure will then contain the values
of the old stack such that the old stack can be restored.
This function is new in V37.
If you do a stack swap, only the new stack is set up.
This function does not copy the stack or do anything else
other than set up the new stack for the task. It is
generally required that you restore your stack before
exiting.
newStack - A structure that contains the values for the
new upper and lower stack bounds and the new stack
pointer. This structure will have its values
replaced by those in you task such that you can
restore the stack later.
newStack - The structure will now contain the old stack.
This means that StackSwap(foo); StackSwap(foo);
will effectively do nothing.
AddTask(), RemTask(), <exec/tasks.h>
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