antonblanchard.microwatt/simple_ram_behavioural_helpers.vhdl

library ieee;
use ieee.std_logic_1164.all;

package simple_ram_behavioural_helpers is
	function behavioural_initialize (filename: String; size: integer) return integer;
	attribute foreign of behavioural_initialize : function is "VHPIDIRECT behavioural_initialize";

	procedure behavioural_read (val: out std_ulogic_vector(63 downto 0); addr: std_ulogic_vector(63 downto 0); length: integer; identifier: integer; reload: integer);
	attribute foreign of behavioural_read : procedure is "VHPIDIRECT behavioural_read";

	procedure behavioural_write (val: std_ulogic_vector(63 downto 0); addr: std_ulogic_vector(63 downto 0); length: integer; identifier: integer);
	attribute foreign of behavioural_write : procedure is "VHPIDIRECT behavioural_write";
end simple_ram_behavioural_helpers;

package body simple_ram_behavioural_helpers is
	function behavioural_initialize (filename: String; size: integer) return integer is
	begin
		assert false report "VHPI" severity failure;
	end behavioural_initialize;

	procedure behavioural_read (val: out std_ulogic_vector(63 downto 0); addr: std_ulogic_vector(63 downto 0); length: integer; identifier: integer; reload: integer) is
	begin
		assert false report "VHPI" severity failure;
	end behavioural_read;

	procedure behavioural_write (val: std_ulogic_vector(63 downto 0); addr: std_ulogic_vector(63 downto 0); length: integer; identifier: integer) is
	begin
		assert false report "VHPI" severity failure;
	end behavioural_write;
end simple_ram_behavioural_helpers;