microcode

名词 microcode:

1. (computer science) coded instructions that are stored permanently in read-only memory
   同义词：firmware

1. A procedure in which an instruction is broken down into the microcode operations necessary for its execution by a control unit.
   一种处理过程，其间由控制器将一条指令分解成为它的执行所必须的微码操作。
2. A program or other coding sequence that produces a result of specified type and format( "a macro generator"; "a microcode generator" ).
   产生某种指定类型和格式的结果的程序或另一种编码序列(如“宏生成程序”、“微代码生成程序”)。