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@ -11,11 +11,11 @@ The VM defines the following opcode symbols:
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* `BACK` - Return to the previous execution frame (will fail if at top frame). It leaves to the state of the execution layer to define what "previous" means.
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* `CATCH <symbol> <signal>` - Jump to symbol if signal is set (see `signal` below).
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* `CROAK <signal>` - Clear state and restart execution from tip if signal is set (see `signal` below).
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* `CROAK <signal>` - Clear state and restart execution from top if signal is set (see `signal` below).
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* `LOAD <symbol> <size>` - Execute the code symbol `symbol` and cache the data, constrained to the given `size`.
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* `RELOAD <symbol>` - Execute a code symbol already loaded by `LOAD` and cache the data, constrained to the given `size`.
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* `MAP <symbol>` - Expose a code symbol previously loaded by `LOAD`. Roughly corresponds to the `global` directive in Python.
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* `MOVE <symbol>` - Create a new execution frame, invalidating all previous `MAP` calls.
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* `RELOAD <symbol>` - Execute a code symbol already loaded by `LOAD` and cache the data, constrained to the previously given `size` for the same symbol.
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* `MAP <symbol>` - Expose a code symbol previously loaded by `LOAD` to the rendering client. Roughly corresponds to the `global` directive in Python.
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* `MOVE <symbol>` - Create a new execution frame, invalidating all previous `MAP` calls. More detailed: After a `MOVE` call, a `BACK` call will return to the same execution frame, with the same symbols available, but all `MAP` calls will have to be repeated.
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## Rendering
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