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- To avoid using dict memory in compilation targets, we
- pre-declare label variables here, which means we have a limited
- number of it. For now, 4 ought to be enough.
-
- Flow
-
- There are 2 label types: backward and forward. For each type,
- there are two actions: set and write. Setting a label is
- declaring where it is. It has to be performed at the label's
- destination. Writing a label is writing its offset difference
- to the binary result. It has to be done right after a relative
- jump operation. Yes, labels are only for relative jumps.
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