现代计算机组成原理——乘法器设计

现代计算机组成原理实验学号 1115108052姓名詹炳鑫班级电子2班华侨大学电子工程系现代计算机组成原理实验一.程序CfqLIBRARY IEEE;USE IEEE.STD_LOGIC_1164.ALL;USE IEEE.STD_LOGIC_UNSIGNED.ALL;ENTITY cfq ISGENERIC (n:INTEGER:=5;m:INTEGER:=9);PORT(clock,resetn,start: IN STD_LOGIC;x,y : IN STD_LOGIC_VECTOR(n DOWNTO 1);p : OUT STD_LOGIC_VECTOR(m DOWNTO 1);done : OUT STD_LOGIC);END cfq;ARCHITECTURE ONE OF cfq ISSIGNAL ry : STD_LOGIC_VECTOR(n DOWNTO 1);SIGNAL pp : STD_LOGIC_VECTOR(m+1 DOWNTO 0);SIGNAL state: INTEGER RANGE 0 TO 5;BEGINmulyiply: PROCESS(resetn, clock)VARIABLE temp: STD_LOGIC_VECTOR(n+1 DOWNTO 1);BEGINIF resetn='0' THENry <= (OTHERS=>'0');pp <= (OTHERS=>'0');state <= 0;done <= '0';ELSIF clock'EVENT AND clock ='1' THENCASE state ISWHEN 0 =>ry <= y;pp <= "00000"&x&'0';IF start = '1' THENstate <= 1;END IF;WHEN 5 =>IF pp(1 DOWNTO 0)="01" THENtemp:=(pp(m+1)&PP(m+1 DOWNTO n+1))+(ry(n)&ry);ELSIF PP(1 DOWNTO 0)="10" THENtemp:=(pp(m+1)&PP(m+1 DOWNTO n+1))+NOT(ry(n)&ry)+1;ELSEtemp:=(pp(m+1)&PP(m+1 DOWNTO n+1));END IF;p<=temp(n DOWNTO 1)&PP(n DOWNTO 2);done <= '1';state <= 0;WHEN OTHERS =>IF pp(1 DOWNTO 0)="01" THENtemp:=(pp(m+1)&PP(m+1 DOWNTO n+1))+(ry(n)&ry);ELSIF PP(1 DOWNTO 0)="10" THENtemp:=(pp(m+1)&PP(m+1 DOWNTO n+1))+NOT(ry(n)&ry)+1;ELSEtemp:=(pp(m+1)&PP(m+1 DOWNTO n+1));END IF;pp<=temp&PP(n DOWNTO 1);state <= state+1;END CASE;END IF;END PROCESS;END ONE;Cfq-tb-- Copyright (C) 1991-2011 Altera Corporation-- Your use of Altera Corporation's design tools, logic functions-- and other software and tools, and its AMPP partner logic-- functions, and any output files from any of the foregoing-- (including device programming or simulation files), and any-- associated documentation or information are expressly subject-- to the terms and conditions of the Altera Program License-- Subscription Agreement, Altera MegaCore Function License-- Agreement, or other applicable license agreement, including,-- without limitation, that your use is for the sole purpose of-- programming logic devices manufactured by Altera and sold by-- Altera or its authorized distributors. Please refer to the-- applicable agreement for further details.-- *************************************************************************** -- This file contains a Vhdl test bench template that is freely editable to-- suit user's needs .Comments are provided in each section to help the user-- fill out necessary details.-- *************************************************************************** -- Generated on "03/10/2011 16:48:18"-- Vhdl Test Bench template for design : cfq---- Simulation tool : ModelSim-Altera (VHDL)--LIBRARY ieee;USE ieee.std_logic_1164.all;ENTITY cfq_tb ISEND cfq_tb;ARCHITECTURE cfq_arch OF cfq_tb ISCOMPONENT cfqPORT(clock,resetn,start: IN STD_LOGIC;x,y : IN STD_LOGIC_VECTOR(5 DOWNTO 1);p : OUT STD_LOGIC_VECTOR(9 DOWNTO 1);done : OUT STD_LOGIC);END COMPONENT;SIGNAL clock : STD_LOGIC:='0';SIGNAL done : STD_LOGIC:='0';SIGNAL p : STD_LOGIC_VECTOR(9 DOWNTO 1):="000000000";SIGNAL resetn : STD_LOGIC:='0';SIGNAL start : STD_LOGIC:='0';SIGNAL x : STD_LOGIC_VECTOR(5 DOWNTO 1):="00001";SIGNAL y : STD_LOGIC_VECTOR(5 DOWNTO 1):="00011";CONSTANT CLK_P : TIME := 10 ns;BEGINi1 : cfqPORT MAP (-- list connections between master ports and signalsclock => clock,done => done,p => p,resetn => resetn,start => start,x => x,y => y);PROCESS --产生时钟信号进程，没有敏感信号，永久自动启动进程BEGINclock <= '0'; --CLK首先输出0,30ns后输出1 W AIT FOR CLK_P;clock <= '1';W AIT FOR CLK_P; --30ns后返回END PROCESS;resetn <= '0','1' AFTER 25 ns;start <= '0','1' AFTER 45 ns, '0' AFTER 155 ns;END cfq_arch;二.仿真结果：1*3-1*3-1*-31*-3总。