microinstruction
1.In this paper, according to the research of the microinstruction design and developing platform of the CISC microprocessor, the microinstruction format is defined, the microprogramming controller is designed and the developing platform of microprogramming is constructed, which includes the microinstruction compiler and emulation model of microprocessor.
2.The time in which one microinstruction is executed. In general, several microcycles are required to execute one instruction.
3.Most CISC or VLIW processors are microprogrammed processors,horizontal microinstruction is widely used for its high degree of parallelism,efficiency and flexibility,it is necessary to encode one or several groups of mutually exclusive microoperations in different fields in optimizing the microcode ROM.
