genrams: ram initialization functions should be impure

modules/genrams/memory_loader_pkg.vhd

@@ -12,26 +12,26 @@ package memory_loader_pkg is
 
   subtype t_meminit_array is t_generic_ram_init;
 
-  function f_load_mem_from_file
+  impure function f_load_mem_from_file
     (file_name : string;
      mem_size  : integer;
      mem_width : integer;
      fail_if_notfound : boolean)
     return t_meminit_array;
 
-  function f_load_mem32_from_file
+  impure function f_load_mem32_from_file
     (file_name : string; mem_size  : integer; fail_if_notfound : boolean)
     return t_ram32_type;
 
-  function f_load_mem16_from_file
+  impure function f_load_mem16_from_file
     (file_name : string; mem_size  : integer; fail_if_notfound : boolean)
     return t_ram16_type;
 
-  function f_load_mem8_from_file
+  impure function f_load_mem8_from_file
     (file_name : string; mem_size  : integer; fail_if_notfound : boolean)
     return t_ram8_type;
 
-  function f_load_mem32_from_file_split
+  impure function f_load_mem32_from_file_split
     (file_name        : in string; mem_size : in integer;
      fail_if_notfound : boolean; byte_idx : in integer)
     return t_ram8_type;
@@ -40,7 +40,7 @@ end memory_loader_pkg;
 
 package body memory_loader_pkg is
 
-  function f_load_mem_from_file
+  impure function f_load_mem_from_file
     (file_name        : in string;
      mem_size         : in integer;
      mem_width        : in integer;
@@ -87,7 +87,7 @@ package body memory_loader_pkg is
   -- RAM initialization for most common sizes to speed-up synthesis
   -------------------------------------------------------------------
 
-  function f_load_mem32_from_file
+  impure function f_load_mem32_from_file
     (file_name        : in string;
      mem_size         : in integer;
      fail_if_notfound : boolean)
@@ -127,7 +127,7 @@ package body memory_loader_pkg is
 
   -------------------------------------------------------------------
 
-  function f_load_mem16_from_file
+  impure function f_load_mem16_from_file
     (file_name        : in string;
      mem_size         : in integer;
      fail_if_notfound : boolean)
@@ -167,7 +167,7 @@ package body memory_loader_pkg is
 
   -------------------------------------------------------------------
 
-  function f_load_mem8_from_file
+  impure function f_load_mem8_from_file
     (file_name        : in string;
      mem_size         : in integer;
      fail_if_notfound : boolean)
@@ -209,7 +209,7 @@ package body memory_loader_pkg is
   -- initialization for 32-bit RAM split into 4x 8-bit BRAM
   -------------------------------------------------------------------
 
-  function f_load_mem32_from_file_split
+  impure function f_load_mem32_from_file_split
     (file_name        : in string;
      mem_size         : in integer;
      fail_if_notfound : boolean;

modules/genrams/xilinx/generic_dpram_dualclock.vhd

@@ -79,7 +79,7 @@ architecture syn of generic_dpram_dualclock is
 
   type t_ram_type is array(0 to g_size-1) of std_logic_vector(g_data_width-1 downto 0);
 
-  function f_file_to_ramtype return t_ram_type is
+  impure function f_file_to_ramtype return t_ram_type is
     variable tmp    : t_ram_type;
     variable n, pos : integer;
     variable mem32  : t_ram32_type(0 to g_size-1);

modules/genrams/xilinx/generic_dpram_sameclock.vhd

@@ -78,7 +78,7 @@ architecture syn of generic_dpram_sameclock is
 
   type t_ram_type is array(0 to g_size-1) of std_logic_vector(g_data_width-1 downto 0);
 
-  function f_file_to_ramtype return t_ram_type is
+  impure function f_file_to_ramtype return t_ram_type is
     variable tmp    : t_ram_type;
     variable n, pos : integer;
     variable mem32  : t_ram32_type(0 to g_size-1);

modules/genrams/xilinx/generic_dpram_split.vhd

@@ -98,7 +98,7 @@ architecture syn of generic_dpram_split is
 
   type t_split_ram is array(0 to g_size-1) of std_logic_vector(7 downto 0);
 
-  function f_file_to_ramtype(idx : integer) return t_split_ram is
+  impure function f_file_to_ramtype(idx : integer) return t_split_ram is
     variable tmp    : t_split_ram;
     variable mem8   : t_ram8_type(0 to g_size-1);
   begin
@@ -112,7 +112,7 @@ architecture syn of generic_dpram_split is
     return t_split_ram(mem8);
   end f_file_to_ramtype;
 
-  function f_file_contents return t_meminit_array is
+  impure function f_file_contents return t_meminit_array is
   begin
     return f_load_mem_from_file(g_init_file, g_size, c_data_width, g_fail_if_file_not_found);
   end f_file_contents;