While NEC themselves did not follow a strict clean room approach in the development of their clone's microcode, during the trial, they hired an independent contractor who was only given access to specifications but ended up writing code that had certain similarities to both NEC's and Intel's code.
虽然NEC本身并未遵循严格的净室方法来开发其克隆的微码，但在试用期间，他们聘请了一个只能获得规范的独立承包商，最终编写了与NEC和英特尔代码有一定相似之处的代码。