文件名称:alu_16
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三种16位整数运算器的ALU设计方法，调用库函数74181（4位ALU），组成串行16位运算器。(用74181的正逻辑)
B．调用库函数74181和74182，组成提前进位16位运算器。(用74181的正逻辑)
注意：调74181库设计，加进位是“0”有效，减借位是“1”有效，所以最高位进位或借位标志寄存器要统一调整到高有效
C．用always @，case方式描述16位运算器。-Three 16-bit integer arithmetic logic unit of the ALU design methodology, called library function 74181 (4 ALU), composed of serial 16-bit arithmetic logic unit. (With 74,181 positive logic) B. Call library functions 74181 and 74182 to form the advance into the 16-bit arithmetic logic unit. (With 74,181 positive logic) Note: 74,181 Treasury tune the design, add bit is
B．调用库函数74181和74182，组成提前进位16位运算器。(用74181的正逻辑)
注意：调74181库设计，加进位是“0”有效，减借位是“1”有效，所以最高位进位或借位标志寄存器要统一调整到高有效
C．用always @，case方式描述16位运算器。-Three 16-bit integer arithmetic logic unit of the ALU design methodology, called library function 74181 (4 ALU), composed of serial 16-bit arithmetic logic unit. (With 74,181 positive logic) B. Call library functions 74181 and 74182 to form the advance into the 16-bit arithmetic logic unit. (With 74,181 positive logic) Note: 74,181 Treasury tune the design, add bit is
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alu_16
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alu_16.v