The core is based on harvard architecture with 16 - bit instruction length and 8 - bit data length . the performance of mcu has been improved greatly by introducing single - clock - cycle instructions , setting multiple high - speed working registers and replacing micro - program with direct logic block etc . to keep the mcu core reusable and transplantable , the whole mcu core has been coded for synthesis in verilog hdl 该mcu核采用哈佛结构、 16位指令字长和8位数据字长,通过设计单周期指令、在内部设置多个快速寄存器及采用硬布线逻辑代替微程序控制的方法,加快了微处理器的速度,提高了指令的执行效率。
指令: instruct; order; direct inst ...指令字: coding line; command word; i truction word; instruction word指令字形, 指令字格式: instruction word format超长指令字: vliw very long instruction word很长指令字: vliw基本指令字: basic instruction word; biw极长指令字: vliw: very long instruction word通道指令字: channel command word微指令字段: microinstruction field位置指令字: instruction word of location; instruction words of location现行指令字: ciw current instruction word; current instruction work指令字段: i truction field; instruction field指令字符: instruction character指令字片: instruction parcel定字长指令: fixed length instruction双字长指令: double word i truction; double word instruction超长指令字元: vliw双倍字长指令: double length instruction超长指令字处理器: vliw超长指令字结构: vliw空抉部分, 空指令字段: skip field每秒百万指令字节: million instruction bytes per second指令字符,控制符,操作符: instruction character全字长逻辑指令: bit parallel logical instruction非法指令位, 非法指令字符: unallowable instruction digit