Both had custom instruction sets, with programs designed in their raw machinecode.
通过在其原型机代码中设计的程序，两者都自定义了指令集。
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Underlying the front-end parsers is a symbolic instruction set – a kind of portable assembly code – which can be translated to any of the supported machine architectures.
First, you shouldn't assume that the above assignment would be compiled as a single machineinstruction unless you personally verify the machinecode yourself.