------------------------------------------------------------------------------- Entity: 	tbufmem-- File:	tbufmem.vhd-- Author:	Jiri Gaisler - Gaisler Research-- Description:	128-bit trace buffer memory (CPU/AHB)------------------------------------------------------------------------------library ieee;use ieee.std_logic_1164.all;library gaisler;use gaisler.libiu.all;use gaisler.memory.all;library grlib;use grlib.stdlib.all;entity tbufmem is  generic (    tech   : integer := 0;    tbuf   : integer := 0 -- trace buf size in kB (0 - no trace buffer)    );  port (    clk : in std_ulogic;    di  : in tracebuf_in_type;    do  : out tracebuf_out_type);end;architecture rtl of tbufmem isconstant ADDRBITS : integer := 10 + log2(tbuf) - 4;signal enable : std_logic_vector(1 downto 0);  begin  enable <= di.enable & di.enable;  mem0 : for i in 0 to 1 generate    ram0 : syncram64 generic map (tech => tech, abits => addrbits)      port map ( clk, di.addr(addrbits-1 downto 0), di.data(((i*64)+63) downto (i*64)),                 do.data(((i*64)+63) downto (i*64)), enable ,di.write(i*2+1 downto i*2));  end generate;end;