| CPC G06F 8/41 (2013.01) | 17 Claims |

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1. A computing device comprising: a processor resource including a plurality of electronic circuits; and a non-transitory memory resource storing machine-readable instructions stored thereon that, when executed, cause the processor resource to: disassemble a compiled executable of a native operational environment into assembly-based instructions, the processor resource is to generate a syntax tree from the assembly-based instructions, map, in accordance with the syntax tree, the assembly-based instructions to a corresponding module of a target operational environment that differs from the native operational environment in type or version, and generate, in response to mapping the assembly-based instructions to the corresponding module, an executable for the target operational environment.
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