file: job.t package: muf status: alpha
The setBth function accepts a stack offset atop a
value, and overwrites the indicated data stack offset with
the given value, taking the logical bottom element of the
stack as zero. This is an obscure way of hacking the
contents of the data stack, and not generally recommended,
but occasionally useful.
Note that the logical bottom of stack may not be the physical bottom of stack: Some operations such as thunk evaluation restrict the accessable stack locations to a subset of those physically present.
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