LIBRARY lpm;
USE lpm.lpm_components.ALL;
LIBRARY ieee;
USE ieee.std_logic_1164.ALL;
USE ieee.std_logic_arith.ALL;
ENTITY add_lp IS
GENERIC(WIDTH:INTEGER:=15;
WIDTH1:INTEGER:=7;
WIDTH2:INTEGER:=8;
ONE :INTEGER:=1);
PORT(x,y:IN STD_LOGIC_VECTOR(WIDTH-1 DOWNTO 0);
sum:OUT STD_LOGIC_VECTOR(WIDTH-1 DOWNTO 0);
clk:IN STD_LOGIC);
END add_lp;
ARCHITECTURE flex OF add_lp IS
SIGNAL l1,l2,r1,q1
:STD_LOGIC_VECTOR(WIDTH1-1 DOWNTO 0);
SIGNAL l3,l4,r2,q2,u2,h2
:STD_LOGIC_VECTOR(WIDTH2-1 DOWNTO 0);
SIGNAL s :STD_LOGIC_VECTOR(WIDTH-1 DOWNTO 0);
SIGNAL crl,cql :STD_LOGIC_VECTOR(ONE-1 DOWNTO 0);
BEGIN
PROCESS
BEGIN
WAIT UNTIL clk='1';
FOR k IN WIDTH1-1 DOWNTO 0 LOOP
l1(k)<=x(k);
l2(k)<=y(k);
END LOOP;
FOR k IN WIDTH2-1 DOWNTO 0 LOOP
l3(k)<=x(k+WIDTH1);
l4(k)<=y(k+WIDTH1);
END LOOP;
END PROCESS;
add_1:lpm_add_sub
GENERIC MAP(LPM_WIDTH=>WIDTH1,
LPM_REPRESENTATION=>"UNSIGNED",
LPM_DIRECTION=>"ADD")
PORT MAP(dataa=>l1,datab=>l2,
result=>r1,cout=>crl(0));
reg_1:lpm_ff
GENERIC MAP(LPM_WIDTH=>WIDTH1)
PORT MAP(data=>r1,q=>q1,clock=>clk);
reg_2:lpm_ff
GENERIC MAP(LPM_WIDTH=>ONE)
PORT MAP(data=>crl,q=>cql,clock=>clk);
add_2:lpm_add_sub
GENERIC MAP(LPM_WIDTH=>WIDTH2,
LPM_REPRESENTATION=>"UnSIGNED",
LPM_DIRECTION=>"ADD")
PORT MAP(dataa=>l3,datab=>l4,result=>r2);
reg_3:lpm_ff
GENERIC MAP(LPM_WIDTH=>WIDTH2)
PORT MAP(data=>r2,q=>q2,clock=>clk);
h2<=(OTHERS=>'0';
add_3:lpm_add_sub
GENERIC MAP(LPM_WIDTH=>WIDTH2,
LPM_REPRESENTATION=>"UNSIGNED",
LPM_DIRECTION=>"ADD")
PORT MAP(cin=>cql(0),data=>q2,
datab=>h2,result=>u2);
PROCESS
BEGIN
WAIT UNTIL clk='1';
FOR k IN WIDTH1-1 DOWNTO 0 LOOP
s(k)<=ql(k);
END LOOP;
FOR k IN WIDTH2-1 DOWNTO 0 LOOP
s(k+WIDTH1)<=u2(k);
END LOOP
END PROCESS;
sum<=s;
END flex;
Error ine82:File d:\c++\vhdl\add_lp\add_lp.vhd:VHDl syntax error:unexpected end-of-file-try using the Text Editor's syntax Coloring command to find the missing delimiter or keyword
点击错误时,光标就回到--LIBRARY lpm;处
怎么也不明白library lpm有什么错,请高手指点一下
我用的是:MAX+plus II工具 |
