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/pltbutils_func_pkg.vhd
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---------------------------------------------------------------------- |
---- ---- |
---- PlTbUtils Fuctions and Procedures Package ---- |
---- ---- |
---- This file is part of the PlTbUtils project ---- |
---- http://opencores.org/project,pltbutils ---- |
---- ---- |
---- Description: ---- |
---- PlTbUtils is a collection of functions, procedures and ---- |
---- components for easily creating stimuli and checking response ---- |
---- in automatic self-checking testbenches. ---- |
---- ---- |
---- This file defines fuctions and procedures for controlling ---- |
---- stimuli to a DUT and checking response. ---- |
---- ---- |
---- To Do: ---- |
---- - ---- |
---- ---- |
---- Author(s): ---- |
---- - Per Larsson, pela@opencores.org ---- |
---- ---- |
---------------------------------------------------------------------- |
---- ---- |
---- Copyright (C) 2013 Authors and OPENCORES.ORG ---- |
---- ---- |
---- This source file may be used and distributed without ---- |
---- restriction provided that this copyright statement is not ---- |
---- removed from the file and that any derivative work contains ---- |
---- the original copyright notice and the associated disclaimer. ---- |
---- ---- |
---- This source file is free software; you can redistribute it ---- |
---- and/or modify it under the terms of the GNU Lesser General ---- |
---- Public License as published by the Free Software Foundation; ---- |
---- either version 2.1 of the License, or (at your option) any ---- |
---- later version. ---- |
---- ---- |
---- This source is distributed in the hope that it will be ---- |
---- useful, but WITHOUT ANY WARRANTY; without even the implied ---- |
---- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ---- |
---- PURPOSE. See the GNU Lesser General Public License for more ---- |
---- details. ---- |
---- ---- |
---- You should have received a copy of the GNU Lesser General ---- |
---- Public License along with this source; if not, download it ---- |
---- from http://www.opencores.org/lgpl.shtml ---- |
---- ---- |
---------------------------------------------------------------------- |
library ieee; |
use ieee.std_logic_1164.all; |
use ieee.numeric_std.all; |
use std.textio.all; |
use std.env.all; -- VHDL-2008 |
use work.txt_util.all; |
use work.pltbutils_type_pkg.all; -- Use for VHDL-2002, comment out for VHDL-93 |
|
package pltbutils_func_pkg is |
|
-- See the package body for a description of the functions and procedures. |
constant C_PLTBUTILS_STRLEN : natural := 80; |
constant C_PLTBUTILS_TIMEOUT : time := 10 sec; |
constant C_WAIT_BEFORE_STOP_TIME : time := 1 us; |
|
-- Counters for number of checks and number of errors |
-- VHDL-2002: |
shared variable v_pltbutils_test_num : pltbutils_p_integer_t; |
shared variable v_pltbutils_test_name : pltbutils_p_string_t; |
shared variable v_pltbutils_info : pltbutils_p_string_t; |
shared variable v_pltbutils_chk_cnt : pltbutils_p_integer_t; |
shared variable v_pltbutils_err_cnt : pltbutils_p_integer_t; |
shared variable v_pltbutils_stop_sim : pltbutils_p_std_logic_t; |
-- VHDL-1993: |
--shared variable v_pltbutils_test_num : natural := 0; |
--shared variable v_pltbutils_test_name : string(1 to C_PLTBUTILS_STRLEN) := (others => ' '); |
--shared variable v_pltbutils_info : string(1 to C_PLTBUTILS_STRLEN) := (others => ' '); |
--shared variable v_pltbutils_chk_cnt : natural := 0; |
--shared variable v_pltbutils_err_cnt : natural := 0; |
--shared variable v_pltbutils_stop_sim : std_logic := '0'; |
|
-- Global status- and control signal |
type pltbutils_sc_t is |
record |
test_num : natural; |
test_name : string(1 to C_PLTBUTILS_STRLEN); |
info : string(1 to C_PLTBUTILS_STRLEN); |
chk_cnt : natural; |
err_cnt : natural; |
stop_sim : std_logic; |
end record; |
signal pltbutils_sc : pltbutils_sc_t; |
|
-- startsim |
procedure startsim( |
constant testcase_name : in string; |
signal pltbutils_sc : out pltbutils_sc_t |
); |
|
-- endsim |
procedure endsim( |
signal pltbutils_sc : out pltbutils_sc_t; |
constant show_success_fail : in boolean := false; |
constant force : in boolean := false |
); |
|
-- testname |
procedure testname( |
constant num : in integer := -1; |
constant name : in string; |
signal pltbutils_sc : out pltbutils_sc_t |
); |
procedure testname( |
constant name : in string; |
signal pltbutils_sc : out pltbutils_sc_t |
); |
|
-- print, printv, print2 |
procedure print( |
constant active : in boolean; |
signal s : out string; |
constant txt : in string |
); |
procedure print( |
signal s : out string; |
constant txt : in string |
); |
procedure printv( |
constant active : in boolean; |
variable s : out string; |
constant txt : in string |
); |
procedure printv( |
variable s : out string; |
constant txt : in string |
); |
procedure printv( |
constant active : in boolean; |
variable s : inout pltbutils_p_string_t; |
constant txt : in string |
); |
procedure printv( |
variable s : inout pltbutils_p_string_t; |
constant txt : in string |
); |
procedure print( |
constant active : in boolean; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant txt : in string |
); |
procedure print( |
signal pltbutils_sc : out pltbutils_sc_t; |
constant txt : in string |
); |
procedure print2( |
constant active : in boolean; |
signal s : out string; |
constant txt : in string |
); |
procedure print2( |
signal s : out string; |
constant txt : in string |
); |
procedure print2( |
constant active : in boolean; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant txt : in string |
); |
procedure print2( |
signal pltbutils_sc : out pltbutils_sc_t; |
constant txt : in string |
); |
|
-- waitclks |
procedure waitclks( |
constant N : in natural; |
signal clk : in std_logic; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant falling : in boolean := false; |
constant timeout : in time := C_PLTBUTILS_TIMEOUT |
); |
|
-- waitsig |
procedure waitsig( |
signal s : in integer; |
constant value : in integer; |
signal clk : in std_logic; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant falling : in boolean := false; |
constant timeout : in time := C_PLTBUTILS_TIMEOUT |
); |
procedure waitsig( |
signal s : in std_logic; |
constant value : in std_logic; |
signal clk : in std_logic; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant falling : in boolean := false; |
constant timeout : in time := C_PLTBUTILS_TIMEOUT |
); |
procedure waitsig( |
signal s : in std_logic; |
constant value : in integer; |
signal clk : in std_logic; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant falling : in boolean := false; |
constant timeout : in time := C_PLTBUTILS_TIMEOUT |
); |
procedure waitsig( |
signal s : in std_logic_vector; |
constant value : in std_logic_vector; |
signal clk : in std_logic; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant falling : in boolean := false; |
constant timeout : in time := C_PLTBUTILS_TIMEOUT |
); |
procedure waitsig( |
signal s : in std_logic_vector; |
constant value : in integer; |
signal clk : in std_logic; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant falling : in boolean := false; |
constant timeout : in time := C_PLTBUTILS_TIMEOUT |
); |
procedure waitsig( |
signal s : in unsigned; |
constant value : in unsigned; |
signal clk : in std_logic; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant falling : in boolean := false; |
constant timeout : in time := C_PLTBUTILS_TIMEOUT |
); |
procedure waitsig( |
signal s : in unsigned; |
constant value : in integer; |
signal clk : in std_logic; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant falling : in boolean := false; |
constant timeout : in time := C_PLTBUTILS_TIMEOUT |
); |
procedure waitsig( |
signal s : in signed; |
constant value : in signed; |
signal clk : in std_logic; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant falling : in boolean := false; |
constant timeout : in time := C_PLTBUTILS_TIMEOUT |
); |
procedure waitsig( |
signal s : in signed; |
constant value : in integer; |
signal clk : in std_logic; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant falling : in boolean := false; |
constant timeout : in time := C_PLTBUTILS_TIMEOUT |
); |
|
-- check |
procedure check( |
constant rpt : in string; |
constant data : in integer; |
constant expected : in integer; |
signal pltbutils_sc : out pltbutils_sc_t |
); |
procedure check( |
constant rpt : in string; |
constant data : in std_logic; |
constant expected : in std_logic; |
signal pltbutils_sc : out pltbutils_sc_t |
); |
procedure check( |
constant rpt : in string; |
constant data : in std_logic; |
constant expected : in integer; |
signal pltbutils_sc : out pltbutils_sc_t |
); |
procedure check( |
constant rpt : in string; |
constant data : in std_logic_vector; |
constant expected : in std_logic_vector; |
signal pltbutils_sc : out pltbutils_sc_t |
); |
procedure check( |
constant rpt : in string; |
constant data : in std_logic_vector; |
constant expected : in std_logic_vector; |
constant mask : in std_logic_vector; |
signal pltbutils_sc : out pltbutils_sc_t |
); |
procedure check( |
constant rpt : in string; |
constant data : in std_logic_vector; |
constant expected : in integer; |
signal pltbutils_sc : out pltbutils_sc_t |
); |
procedure check( |
constant rpt : in string; |
constant data : in std_logic_vector; |
constant expected : in integer; |
constant mask : in std_logic_vector; |
signal pltbutils_sc : out pltbutils_sc_t |
); |
procedure check( |
constant rpt : in string; |
constant data : in unsigned; |
constant expected : in unsigned; |
signal pltbutils_sc : out pltbutils_sc_t |
); |
procedure check( |
constant rpt : in string; |
constant data : in unsigned; |
constant expected : in integer; |
signal pltbutils_sc : out pltbutils_sc_t |
); |
procedure check( |
constant rpt : in string; |
constant data : in signed; |
constant expected : in signed; |
signal pltbutils_sc : out pltbutils_sc_t |
); |
procedure check( |
constant rpt : in string; |
constant data : in signed; |
constant expected : in integer; |
signal pltbutils_sc : out pltbutils_sc_t |
); |
procedure check( |
constant rpt : in string; |
constant expr : in boolean; |
signal pltbutils_sc : out pltbutils_sc_t |
); |
|
-- to_ascending |
function to_ascending( |
constant s : std_logic_vector |
) return std_logic_vector; |
function to_ascending( |
constant s : unsigned |
) return unsigned; |
function to_ascending( |
constant s : signed |
) return signed; |
|
-- to_descending |
function to_descending( |
constant s : std_logic_vector |
) return std_logic_vector; |
function to_descending( |
constant s : unsigned |
) return unsigned; |
function to_descending( |
constant s : signed |
) return signed; |
|
-- hxstr |
function hxstr( |
constant s : std_logic_vector; |
constant prefix : string := "" |
) return string; |
function hxstr( |
constant s : unsigned; |
constant prefix : string := "" |
) return string; |
function hxstr( |
constant s : signed; |
constant prefix : string := "" |
) return string; |
|
-- pltbutils internal procedure(s), do not call from user's code |
procedure pltbutils_sc_update( |
signal pltbutils_sc : out pltbutils_sc_t |
); |
|
end package pltbutils_func_pkg; |
|
package body pltbutils_func_pkg is |
|
---------------------------------------------------------------------------- |
-- startsim |
-- |
-- procedure startsim( |
-- constant testcase_name : in string; |
-- signal pltbutils_sc : out pltbutils_sc_t |
-- ) |
-- |
-- Displays a message at start of simulation message, and initializes |
-- PlTbUtils' global status and control signal. |
-- Call startsim() only once. |
-- |
-- Arguments: |
-- testcase_name Name of the test case, e.g. "tc1". |
-- |
-- pltbutils_sc PlTbUtils' global status- and control signal. |
-- Must be set to pltbutils_sc. |
-- |
-- NOTE: |
-- The start-of-simulation message is not only intended to be informative |
-- for humans. It is also intended to be searched for by scripts, |
-- e.g. for collecting results from a large number of regression tests. |
-- For this reason, the message must be consistent and unique. |
-- |
-- DO NOT MODIFY the message "--- START OF SIMULATION ---". |
-- DO NOT OUTPUT AN IDENTICAL MESSAGE anywhere else. |
-- |
-- Example: |
-- startsim("tc1", pltbutils_sc); |
---------------------------------------------------------------------------- |
procedure startsim( |
constant testcase_name : in string; |
signal pltbutils_sc : out pltbutils_sc_t |
) is |
variable dummy : integer; |
begin |
printv(v_pltbutils_info, testcase_name); |
print(lf & "--- START OF SIMULATION ---"); |
print("Testcase: " & testcase_name); |
print(time'image(now)); |
-- VHDL-2002: |
v_pltbutils_stop_sim.clr; |
v_pltbutils_test_num.clr; |
v_pltbutils_test_name.set("START OF SIMULATION"); |
v_pltbutils_chk_cnt.clr; |
v_pltbutils_err_cnt.clr; |
pltbutils_sc_update(pltbutils_sc); |
-- VHDL-1993: |
--v_pltbutils_stop_sim := '0'; |
--v_pltbutils_test_num := 0; |
--printv(v_pltbutils_test_name, "START OF SIMULATION"); |
--v_pltbutils_chk_cnt := 0; |
--v_pltbutils_err_cnt := 0; |
--pltbutils_sc_update(pltbutils_sc); |
end procedure startsim; |
|
---------------------------------------------------------------------------- |
-- endsim |
-- |
-- procedure endsim( |
-- signal pltbutils_sc : out pltbutils_sc_t; |
-- constant show_success_fail : in boolean := false; |
-- constant force : in boolean := false |
-- ) |
-- |
-- Displays a message at end of simulation message, presents the simulation |
-- results, and stops the simulation. |
-- Call endsim() it only once. |
-- |
-- Arguments: |
-- pltbutils_sc PlTbUtils' global status- and control signal. |
-- Must be set to pltbutils_sc. |
-- |
-- show_success_fail If true, endsim() shows "*** SUCCESS ***", |
-- "*** FAIL ***", or "*** NO CHECKS ***". |
-- Optional, default is false. |
-- |
-- force If true, forces the simulation to stop using an |
-- assert failure statement. Use this option only |
-- if the normal way of stopping the simulation |
-- doesn't work (see below). |
-- Optional, default is false. |
-- |
-- The testbench should be designed so that all clocks stop when endsim() |
-- sets the signal stop_sim to '1'. This should stop the simulator. |
-- In some cases, that doesn't work, then set the force argument to true, which |
-- causes a false assert failure, which should stop the simulator. |
-- Scripts searching transcript logs for errors and failures, should ignore |
-- the failure with "--- FORCE END OF SIMULATION ---" as part of the report. |
-- |
-- NOTE: |
-- The end-of-simulation messages and success/fail messages are not only |
-- intended to be informative for humans. They are also intended to be |
-- searched for by scripts, e.g. for collecting results from a large number |
-- of regression tests. |
-- For this reason, the message must be consistent and unique. |
-- |
-- DO NOT MODIFY the messages "--- END OF SIMULATION ---", |
-- "*** SUCCESS ***", "*** FAIL ***", "*** NO CHECKS ***". |
-- DO NOT OUTPUT IDENTICAL MESSAGES anywhere else. |
-- |
-- Examples: |
-- endsim(pltbutils_sc); |
-- endsim(pltbutils_sc, true); |
-- endsim(pltbutils_sc, true, true); |
---------------------------------------------------------------------------- |
procedure endsim( |
signal pltbutils_sc : out pltbutils_sc_t; |
constant show_success_fail : in boolean := false; |
constant force : in boolean := false |
) is |
variable l : line; |
begin |
printv(v_pltbutils_info, ""); |
print(lf & "--- END OF SIMULATION ---"); |
print("Note: the results presented below are based on the PlTbUtil's check() procedure calls."); |
print(" The design may contain more errors, for which there are no check() calls."); |
write(l, now, right, 14); |
writeline(output, l); |
write(l, v_pltbutils_chk_cnt.value, right, 11); -- VHDL-2002 |
--write(l, v_pltbutils_chk_cnt, right, 11); -- VHDL-1993 |
write(l, string'(" Checks")); |
writeline(output, l); |
write(l, v_pltbutils_err_cnt.value, right, 11); -- VHDL-2002 |
--write(l, v_pltbutils_chk_cnt, right, 11); -- VHDL-1993 |
write(l, string'(" Errors")); |
writeline(output, l); |
|
if show_success_fail then |
if v_pltbutils_err_cnt.value = 0 and v_pltbutils_chk_cnt.value > 0 then -- VHDL-2002 |
--if v_pltbutils_err_cnt = 0 and v_pltbutils_chk_cnt > 0 then -- VHDL-1993 |
print("*** SUCCESS ***"); |
elsif v_pltbutils_chk_cnt.value > 0 then -- VHDL-2002 |
--elsif v_pltbutils_chk_cnt > 0 then -- VHDL-1993 |
print("*** FAIL ***"); |
else |
print("*** NO CHECKS ***"); |
end if; |
end if; |
-- VHDL-2002: |
v_pltbutils_stop_sim.set('1'); |
v_pltbutils_test_num.clr; |
v_pltbutils_test_name.set("END OF SIMULATION"); |
-- VHDL-1993: |
--v_pltbutils_stop_sim := '1'; |
--v_pltbutils_test_num := 0; |
--printv(v_pltbutils_test_name, "END OF SIMULATION"); |
pltbutils_sc_update(pltbutils_sc); |
wait for C_WAIT_BEFORE_STOP_TIME; |
stop(0); -- VHDL-2008 |
assert not force |
report "--- FORCE END OF SIMULATION ---" & |
" (ignore this false failure message, it's not a real failure)" |
severity failure; |
wait; |
end procedure endsim; |
|
---------------------------------------------------------------------------- |
-- testname |
-- |
-- procedure testname( |
-- constant num : in integer := -1; |
-- constant name : in string; |
-- signal pltbutils_sc : out pltbutils_sc_t |
-- ) |
-- |
-- Sets a number (optional) and a name for a test. The number and name will |
-- be printed to the screen, and displayed in the simulator's waveform |
-- window. |
-- The test number and name is also included if there errors reported by the |
-- check() procedure calls. |
-- |
-- Arguments: |
-- num Test number. Optional, default is to increment |
-- the current test number. |
-- |
-- name Test name. |
-- |
-- pltbutils_sc PlTbUtils' global status- and control signal. |
-- Must be set to pltbutils_sc. |
-- |
-- If the test number is omitted, a new test number is automatically |
-- computed by incrementing the current test number. |
-- Manually setting the test number may make it easier to find the test code |
-- in the testbench code, though. |
-- |
-- Examples: |
-- testname("Reset test", pltbutils_sc); |
-- testname(1, "Reset test", pltbutils_sc); |
---------------------------------------------------------------------------- |
procedure testname( |
constant num : in integer := -1; |
constant name : in string; |
signal pltbutils_sc : out pltbutils_sc_t |
) is |
begin |
-- VHDL-2002: |
if num = -1 then |
v_pltbutils_test_num.inc; |
else |
v_pltbutils_test_num.set(num); |
end if; |
v_pltbutils_test_name.set(name); |
pltbutils_sc_update(pltbutils_sc); |
print(lf & "Test " & str(v_pltbutils_test_num.value) & ": " & name); |
-- VHDL-1993: |
--if num = -1 then |
-- b_pltbutils_test_num := v_pltbutils_test_num + 1; |
--else |
-- v_pltbutils_test_num := num; |
--end if; |
--printv(v_pltbutils_test_name, name); |
--pltbutils_sc_update(pltbutils_sc); |
--print("Test " & str(v_pltbutils_test_num) & ": " & name); |
end procedure testname; |
|
procedure testname( |
constant name : in string; |
signal pltbutils_sc : out pltbutils_sc_t |
) is |
begin |
testname(-1, name, pltbutils_sc); |
end procedure testname; |
|
---------------------------------------------------------------------------- |
-- print printv print2 |
-- |
-- procedure print( |
-- signal s : out string; |
-- constant txt : in string |
-- ) |
-- |
-- procedure print( |
-- constant active : in boolean; |
-- signal s : out string; |
-- constant txt : in string |
-- ) |
-- |
-- procedure print( |
-- signal pltbutils_sc : out pltbutils_sc_t; |
-- constant txt : in string |
-- ) |
-- |
-- procedure print( |
-- constant active : in boolean; |
-- signal pltbutils_sc : out pltbutils_sc_t; |
-- constant txt : in string |
-- ) |
-- |
-- procedure printv( |
-- variable s : out string; |
-- constant txt : in string |
-- ) |
-- |
-- procedure printv( |
-- constant active : in boolean; |
-- variable s : out string; |
-- constant txt : in string |
-- ) |
-- |
-- procedure print2( |
-- signal s : out string; |
-- constant txt : in string |
-- ) |
-- |
-- procedure print2( |
-- constant active : in boolean; |
-- signal s : out string; |
-- constant txt : in string |
-- ) |
-- |
-- procedure print2( |
-- signal pltbutils : out pltbutils_sc_t; |
-- constant txt : in string |
-- ) |
-- |
-- procedure print2( |
-- constant active : in boolean; |
-- signal pltbutils : out pltbutils_sc_t; |
-- constant txt : in string |
-- ) |
-- |
-- print() prints text messages to a signal for viewing in the simulator's |
-- waveform window. printv() does the same thing, but to a variable instead. |
-- print2() prints both to a signal and to the transcript window. |
-- The type of the output can be string or pltbutils_sc_t. |
-- If the type is pltbutils_sc_t, the name can be no other than pltbutils_sc. |
-- |
-- Arguments: |
-- s Signal or variable of type string to be |
-- printed to. |
-- |
-- txt The text. |
-- |
-- active The text is only printed if active is true. |
-- Useful for debug switches, etc. |
-- |
-- pltbutils_sc PlTbUtils' global status- and control signal |
-- of type pltbutils_sc_t. |
-- The name must be no other than pltbutils_sc. |
-- |
-- If the string txt is longer than the signal s, the text will be truncated. |
-- If txt is shorter, s will be padded with spaces. |
-- |
-- Examples: |
-- print(msg, "Hello, world"); -- Prints to signal msg |
-- print(G_DEBUG, msg, "Hello, world"); -- Prints to signal msg if |
-- -- generic G_DEBUG is true |
-- printv(v_msg, "Hello, world"); -- Prints to variable msg |
-- print(pltbutils_sc, "Hello, world"); -- Prints to "info" in waveform window |
-- print2(msg, "Hello, world"); -- Prints to signal and transcript window |
-- print(pltbutils_sc, "Hello, world"); -- Prints to "info" in waveform and |
-- -- transcript windows |
---------------------------------------------------------------------------- |
procedure print( |
constant active : in boolean; |
signal s : out string; |
constant txt : in string |
) is |
variable j : positive := txt 'low; |
begin |
if active then |
for i in s'range loop |
if j <= txt 'high then |
s(i) <= txt (j); |
else |
s(i) <= ' '; |
end if; |
j := j + 1; |
end loop; |
end if; |
end procedure print; |
|
procedure print( |
signal s : out string; |
constant txt : in string |
) is |
begin |
print(true, s, txt); |
end procedure print; |
|
procedure printv( |
constant active : in boolean; |
variable s : out string; |
constant txt : in string |
) is |
variable j : positive := txt 'low; |
begin |
if active then |
for i in s'range loop |
if j <= txt 'high then |
s(i) := txt (j); |
else |
s(i) := ' '; |
end if; |
j := j + 1; |
end loop; |
end if; |
end procedure printv; |
|
procedure printv( |
variable s : out string; |
constant txt : in string |
) is |
begin |
printv(true, s, txt); |
end procedure printv; |
|
-- VHDL-2002: |
procedure printv( |
constant active : in boolean; |
variable s : inout pltbutils_p_string_t; |
constant txt : in string |
) is |
variable j : positive := txt 'low; |
begin |
if active then |
s.set(txt); |
end if; |
end procedure printv; |
|
procedure printv( |
variable s : inout pltbutils_p_string_t; |
constant txt : in string |
) is |
begin |
printv(true, s, txt); |
end procedure printv; |
|
-- Print to info element in pltbutils_sc, which shows up in waveform window |
procedure print( |
constant active : in boolean; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant txt : in string |
) is |
variable j : positive := txt 'low; |
begin |
if active then |
printv(v_pltbutils_info, txt ); |
pltbutils_sc_update(pltbutils_sc); |
end if; |
end procedure print; |
|
procedure print( |
signal pltbutils_sc : out pltbutils_sc_t; |
constant txt : in string |
) is |
begin |
print(true, pltbutils_sc, txt); |
end procedure print; |
|
procedure print2( |
constant active : in boolean; |
signal s : out string; |
constant txt : in string |
) is |
begin |
if active then |
print(s, txt ); |
print(txt); |
end if; |
end procedure print2; |
|
procedure print2( |
signal s : out string; |
constant txt : in string |
) is |
begin |
print(true, s, txt); |
end procedure print2; |
|
procedure print2( |
constant active : in boolean; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant txt : in string |
) is |
begin |
print(pltbutils_sc, txt ); |
print(txt); |
end procedure print2; |
|
procedure print2( |
signal pltbutils_sc : out pltbutils_sc_t; |
constant txt : in string |
) is |
begin |
print(true, pltbutils_sc, txt); |
end procedure print2; |
|
---------------------------------------------------------------------------- |
-- waitclks |
-- |
-- procedure waitclks( |
-- constant n : in natural; |
-- signal clk : in std_logic; |
-- signal pltbutils_sc : out pltbutils_sc_t; |
-- constant falling : in boolean := false; |
-- constant timeout : in time := C_PLTBUTILS_TIMEOUT |
-- ) |
-- |
-- Waits specified amount of clock cycles of the specified clock. |
-- Or, to be more precise, a specified number of specified clock edges of |
-- the specified clock. |
-- |
-- Arguments: |
-- n Number of rising or falling clock edges to wait. |
-- |
-- clk The clock to wait for. |
-- |
-- pltbutils_sc PlTbUtils' global status- and control signal. |
-- Must be set to pltbutils_sc. |
-- |
-- falling If true, waits for falling edges, otherwise |
-- rising edges. Optional, default is false. |
-- |
-- timeout Timeout time, in case the clock is not working. |
-- Optional, default is C_PLTBUTILS_TIMEOUT. |
-- |
-- Examples: |
-- waitclks(5, sys_clk, pltbutils_sc); |
-- waitclks(5, sys_clk, pltbutils_sc, true); |
-- waitclks(5, sys_clk, pltbutils_sc, true, 1 ms); |
---------------------------------------------------------------------------- |
procedure waitclks( |
constant n : in natural; |
signal clk : in std_logic; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant falling : in boolean := false; |
constant timeout : in time := C_PLTBUTILS_TIMEOUT |
) is |
variable i : natural := n; |
variable v_timeout_time : time; |
begin |
v_timeout_time := now + timeout; |
while i > 0 loop |
if falling then |
wait until falling_edge(clk) for timeout / n; |
else |
wait until rising_edge(clk) for timeout / n; |
end if; |
i := i - 1; |
end loop; |
if now >= v_timeout_time then |
assert false |
report "waitclks() timeout" |
severity error; |
v_pltbutils_err_cnt.inc; -- VHDL-2002 |
--v_pltbutils_err_cnt := v_pltbutils_err_cnt + 1; -- VHDL-1993 |
pltbutils_sc_update(pltbutils_sc); |
end if; |
end procedure waitclks; |
|
---------------------------------------------------------------------------- |
-- waitsig |
-- |
-- procedure waitsig( |
-- signal s : in integer|std_logic|std_logic_vector|unsigned|signed; |
-- constant value : in integer|std_logic|std_logic_vector|unsigned|signed; |
-- signal clk : in std_logic; |
-- signal pltbutils_sc : out pltbutils_sc_t; |
-- constant falling : in boolean := false; |
-- constant timeout : in time := C_PLTBUTILS_TIMEOUT |
-- ) |
-- |
-- Waits until a signal has reached a specified value after specified clock |
-- edge. |
-- |
-- Arguments: |
-- s The signal to test. |
-- Supported types: integer, std_logic, |
-- std_logic_vector, unsigned, signed. |
-- |
-- value Value to wait for. |
-- Same type as data or integer. |
-- |
-- clk The clock. |
-- |
-- pltbutils_sc PlTbUtils' global status- and control signal. |
-- Must be set to pltbutils_sc. |
-- |
-- falling If true, waits for falling edges, otherwise |
-- rising edges. Optional, default is false. |
-- |
-- timeout Timeout time, in case the clock is not working. |
-- Optional, default is C_PLTBUTILS_TIMEOUT. |
-- |
-- Examples: |
-- waitsig(wr_en, '1', sys_clk, pltbutils_sc); |
-- waitsig(rd_en, 1, sys_clk, pltbutils_sc, true); |
-- waitclks(full, '1', sys_clk, pltbutils_sc, true, 1 ms); |
---------------------------------------------------------------------------- |
procedure waitsig( |
signal s : in integer; |
constant value : in integer; |
signal clk : in std_logic; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant falling : in boolean := false; |
constant timeout : in time := C_PLTBUTILS_TIMEOUT |
) is |
variable v_timeout_time : time; |
begin |
v_timeout_time := now + timeout; |
l1 : loop |
waitclks(1, clk, pltbutils_sc, falling, timeout); |
exit l1 when s = value or now >= v_timeout_time; |
end loop; |
if now >= v_timeout_time then |
assert false |
report "waitsig() timeout" |
severity error; |
v_pltbutils_err_cnt.inc; -- VHDL-2002 |
--v_pltbutils_err_cnt := v_pltbutils_err_cnt + 1; -- VHDL-1993 |
pltbutils_sc_update(pltbutils_sc); |
end if; |
end procedure waitsig; |
|
procedure waitsig( |
signal s : in std_logic; |
constant value : in std_logic; |
signal clk : in std_logic; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant falling : in boolean := false; |
constant timeout : in time := C_PLTBUTILS_TIMEOUT |
) is |
variable v_timeout_time : time; |
begin |
v_timeout_time := now + timeout; |
l1 : loop |
waitclks(1, clk, pltbutils_sc, falling, timeout); |
exit l1 when s = value or now >= v_timeout_time; |
end loop; |
if now >= v_timeout_time then |
assert false |
report "waitsig() timeout" |
severity error; |
v_pltbutils_err_cnt.inc; -- VHDL-2002 |
--v_pltbutils_err_cnt := v_pltbutils_err_cnt + 1; -- VHDL-1993 |
pltbutils_sc_update(pltbutils_sc); |
end if; |
end procedure waitsig; |
|
procedure waitsig( |
signal s : in std_logic; |
constant value : in integer; |
signal clk : in std_logic; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant falling : in boolean := false; |
constant timeout : in time := C_PLTBUTILS_TIMEOUT |
) is |
variable v_value : std_logic; |
variable v_timeout_time : time; |
begin |
case value is |
when 0 => v_value := '0'; |
when 1 => v_value := '1'; |
when others => v_value := 'X'; |
end case; |
if v_value /= 'X' then |
waitsig(s, v_value, clk, |
pltbutils_sc, falling, timeout); |
else |
assert false |
report "waitsig() illegal value to wait for: " & integer'image(value) |
severity error; |
v_pltbutils_err_cnt.inc; -- VHDL-2002 |
--v_pltbutils_err_cnt := v_pltbutils_err_cnt + 1; -- VHDL-1993 |
pltbutils_sc_update(pltbutils_sc); |
end if; |
end procedure waitsig; |
|
procedure waitsig( |
signal s : in std_logic_vector; |
constant value : in std_logic_vector; |
signal clk : in std_logic; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant falling : in boolean := false; |
constant timeout : in time := C_PLTBUTILS_TIMEOUT |
) is |
variable v_timeout_time : time; |
begin |
v_timeout_time := now + timeout; |
l1 : loop |
waitclks(1, clk, pltbutils_sc, falling, timeout); |
exit l1 when s = value or now >= v_timeout_time; |
end loop; |
if now >= v_timeout_time then |
assert false |
report "waitsig() timeout" |
severity error; |
v_pltbutils_err_cnt.inc; -- VHDL-2002 |
--v_pltbutils_err_cnt := v_pltbutils_err_cnt + 1; -- VHDL-1993 |
pltbutils_sc_update(pltbutils_sc); |
end if; |
end procedure waitsig; |
|
procedure waitsig( |
signal s : in std_logic_vector; |
constant value : in integer; |
signal clk : in std_logic; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant falling : in boolean := false; |
constant timeout : in time := C_PLTBUTILS_TIMEOUT |
) is |
variable v_timeout_time : time; |
begin |
waitsig(s, std_logic_vector(to_unsigned(value, s'length)), clk, |
pltbutils_sc, falling, timeout); |
end procedure waitsig; |
|
procedure waitsig( |
signal s : in unsigned; |
constant value : in unsigned; |
signal clk : in std_logic; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant falling : in boolean := false; |
constant timeout : in time := C_PLTBUTILS_TIMEOUT |
) is |
variable v_timeout_time : time; |
begin |
v_timeout_time := now + timeout; |
l1 : loop |
waitclks(1, clk, pltbutils_sc, falling, timeout); |
exit l1 when s = value or now >= v_timeout_time; |
end loop; |
if now >= v_timeout_time then |
assert false |
report "waitsig() timeout" |
severity error; |
v_pltbutils_err_cnt.inc; -- VHDL-2002 |
--v_pltbutils_err_cnt := v_pltbutils_err_cnt + 1; -- VHDL-1993 |
pltbutils_sc_update(pltbutils_sc); |
end if; |
end procedure waitsig; |
|
procedure waitsig( |
signal s : in unsigned; |
constant value : in integer; |
signal clk : in std_logic; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant falling : in boolean := false; |
constant timeout : in time := C_PLTBUTILS_TIMEOUT |
) is |
variable v_timeout_time : time; |
begin |
waitsig(s, to_unsigned(value, s'length), clk, |
pltbutils_sc, falling, timeout); |
end procedure waitsig; |
|
procedure waitsig( |
signal s : in signed; |
constant value : in signed; |
signal clk : in std_logic; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant falling : in boolean := false; |
constant timeout : in time := C_PLTBUTILS_TIMEOUT |
) is |
variable v_timeout_time : time; |
begin |
v_timeout_time := now + timeout; |
l1 : loop |
waitclks(1, clk, pltbutils_sc, falling, timeout); |
exit l1 when s = value or now >= v_timeout_time; |
end loop; |
if now >= v_timeout_time then |
assert false |
report "waitsig() timeout" |
severity error; |
v_pltbutils_err_cnt.inc; -- VHDL-2002 |
--v_pltbutils_err_cnt := v_pltbutils_err_cnt + 1; -- VHDL-1993 |
pltbutils_sc_update(pltbutils_sc); |
end if; |
end procedure waitsig; |
|
procedure waitsig( |
signal s : in signed; |
constant value : in integer; |
signal clk : in std_logic; |
signal pltbutils_sc : out pltbutils_sc_t; |
constant falling : in boolean := false; |
constant timeout : in time := C_PLTBUTILS_TIMEOUT |
) is |
variable v_timeout_time : time; |
begin |
waitsig(s, to_signed(value, s'length), clk, |
pltbutils_sc, falling, timeout); |
end procedure waitsig; |
|
---------------------------------------------------------------------------- |
-- check |
-- |
-- procedure check( |
-- constant rpt : in string; |
-- constant data : in integer|std_logic|std_logic_vector|unsigned|signed; |
-- constant expected : in integer|std_logic|std_logic_vector|unsigned|signed; |
-- signal pltbutils_sc : out pltbutils_sc_t |
-- ) |
-- |
-- procedure check( |
-- constant rpt : in string; |
-- constant data : in std_logic_vector; |
-- constant expected : in std_logic_vector; |
-- constant mask : in std_logic_vector; |
-- signal pltbutils_sc : out pltbutils_sc_t |
-- ) |
-- |
-- procedure check( |
-- constant rpt : in string; |
-- constant expr : in boolean; |
-- signal pltbutils_sc : out pltbutils_sc_t |
-- ) |
-- |
-- Checks that the value of a signal or variable is equal to expected. |
-- If not equal, displays an error message and increments the error counter. |
-- |
-- Arguments: |
-- rpt Report message to be displayed in case of |
-- mismatch. |
-- It is recommended that the message is unique |
-- and that it contains the name of the signal |
-- or variable being checked. |
-- The message should NOT contain the expected |
-- value, becase check() prints that |
-- automatically. |
-- |
-- data The signal or variable to be checked. |
-- Supported types: integer, std_logic, |
-- std_logic_vector, unsigned, signed. |
-- |
-- expected Expected value. |
-- Same type as data or integer. |
-- |
-- mask Bit mask and:ed to data and expected |
-- before comparison. |
-- Optional if data is std_logic_vector. |
-- Not allowed for other types. |
-- |
-- expr boolean expression for checking. |
-- This makes it possible to check any kind of |
-- expresion, not just equality. |
-- |
-- pltbutils_sc PlTbUtils' global status- and control signal. |
-- Must be set to the name pltbutils_sc. |
-- |
-- Examples: |
-- check("dat_o after reset", dat_o, 0, pltbutils_sc); |
-- -- With mask: |
-- check("Status field in reg_o after start", reg_o, x"01", x"03", pltbutils_sc); |
-- -- Boolean expression: |
-- check("Counter after data burst", cnt_o > 10, pltbutils_sc); |
---------------------------------------------------------------------------- |
-- check integer |
procedure check( |
constant rpt : in string; |
constant data : in integer; |
constant expected : in integer; |
signal pltbutils_sc : out pltbutils_sc_t |
) is |
begin |
v_pltbutils_chk_cnt.inc; -- VHDL-2002 |
--v_pltbutils_chk_cnt := v_pltbutils_chk_cnt + 1; -- VHDL-1993 |
if data /= expected then |
assert false |
report "Check " & |
str(v_pltbutils_chk_cnt.value) & -- VHDL-2002 |
--str(v_pltbutils_chk_cnt) & -- VHDL-1993 |
"; " & rpt & |
"; Data=" & str(data) & |
" Expected=" & str(expected) & |
" " & --str(character'(lf)) & |
" in test " & |
str(v_pltbutils_test_num.value) & -- VHDL-2002 |
--str(v_pltbutils_test_num) & -- VHDL-1993 |
" " & |
v_pltbutils_test_name.value -- VHDL-2002 |
--v_pltbutils_test_name -- VHDL-1993 |
severity error; |
v_pltbutils_err_cnt.inc; -- VHLD-2002 |
--v_pltbutils_err_cnt := v_pltbutils_err_cnt + 1; -- VHDL-1993 |
end if; |
pltbutils_sc_update(pltbutils_sc); |
end procedure check; |
|
-- check std_logic |
procedure check( |
constant rpt : in string; |
constant data : in std_logic; |
constant expected : in std_logic; |
signal pltbutils_sc : out pltbutils_sc_t |
) is |
begin |
v_pltbutils_chk_cnt.inc; -- VHDL-2002 |
--v_pltbutils_chk_cnt := v_pltbutils_chk_cnt + 1; -- VHDL-1993 |
if data /= expected then |
assert false |
report "Check " & |
str(v_pltbutils_chk_cnt.value) & -- VHDL-2002 |
--str(v_pltbutils_chk_cnt) & -- VHDL-1993 |
"; " & rpt & |
"; Data=" & str(data) & |
" Expected=" & str(expected) & |
" " & --str(character'(lf)) & |
" in test " & |
str(v_pltbutils_test_num.value) & -- VHDL-2002 |
--str(v_pltbutils_test_num) & -- VHDL-1993 |
" " & |
v_pltbutils_test_name.value -- VHDL-2002 |
--v_pltbutils_test_name -- VHDL-1993 |
severity error; |
v_pltbutils_err_cnt.inc; -- VHLD-2002 |
--v_pltbutils_err_cnt := v_pltbutils_err_cnt + 1; -- VHDL-1993 |
end if; |
pltbutils_sc_update(pltbutils_sc); |
end procedure check; |
|
-- check std_logic against integer |
procedure check( |
constant rpt : in string; |
constant data : in std_logic; |
constant expected : in integer; |
signal pltbutils_sc : out pltbutils_sc_t |
) is |
variable v_expected : std_logic; |
begin |
if expected = 0 then |
check(rpt , data, std_logic'('0'), pltbutils_sc); |
elsif expected = 1 then |
check(rpt , data, std_logic'('1'), pltbutils_sc); |
else |
v_pltbutils_chk_cnt.inc; -- VHDL-2002 |
--v_pltbutils_chk_cnt := v_pltbutils_chk_cnt + 1; -- VHDL-1993 |
assert false |
report "Check " & |
str(v_pltbutils_chk_cnt.value) & -- VHDL-2002 |
--str(v_pltbutils_chk_cnt) & -- VHDL-1993 |
"; " & rpt & |
"; Data=" & str(data) & |
" Expected=" & str(expected) & |
" " & --str(character'(lf)) & |
" in test " & |
str(v_pltbutils_test_num.value) & -- VHDL-2002 |
--str(v_pltbutils_test_num) & -- VHDL-1993 |
" " & |
v_pltbutils_test_name.value -- VHDL-2002 |
--v_pltbutils_test_name -- VHDL-1993 |
severity error; |
v_pltbutils_err_cnt.inc; -- VHLD-2002 |
--v_pltbutils_err_cnt := v_pltbutils_err_cnt + 1; -- VHDL-1993 |
pltbutils_sc_update(pltbutils_sc); |
end if; |
end procedure check; |
|
-- check std_logic_vector |
procedure check( |
constant rpt : in string; |
constant data : in std_logic_vector; |
constant expected : in std_logic_vector; |
signal pltbutils_sc : out pltbutils_sc_t |
) is |
begin |
v_pltbutils_chk_cnt.inc; -- VHDL-2002 |
--v_pltbutils_chk_cnt := v_pltbutils_chk_cnt + 1; -- VHDL-1993 |
if data /= expected then |
assert false |
report "Check " & |
str(v_pltbutils_chk_cnt.value) & -- VHDL-2002 |
--str(v_pltbutils_chk_cnt) & -- VHDL-1993 |
"; " & rpt & |
"; Data=" & hxstr(data, "0x") & |
" Expected=" & hxstr(expected, "0x") & |
" " & --str('lf') & |
" in test " & |
str(v_pltbutils_test_num.value) & -- VHDL-2002 |
--str(v_pltbutils_test_num) & -- VHDL-1993 |
" " & |
v_pltbutils_test_name.value -- VHDL-2002 |
--v_pltbutils_test_name -- VHDL-1993 |
severity error; |
v_pltbutils_err_cnt.inc; -- VHDL-2002 |
--v_pltbutils_err_cnt := v_pltbutils_err_cnt + 1; -- VHDL-1993 |
end if; |
pltbutils_sc_update(pltbutils_sc); |
end procedure check; |
|
-- check std_logic_vector with mask |
procedure check( |
constant rpt : in string; |
constant data : in std_logic_vector; |
constant expected : in std_logic_vector; |
constant mask : in std_logic_vector; |
signal pltbutils_sc : out pltbutils_sc_t |
) is |
begin |
v_pltbutils_chk_cnt.inc; -- VHDL-2002 |
--v_pltbutils_chk_cnt := v_pltbutils_chk_cnt + 1; -- VHDL-1993 |
if (data and mask) /= (expected and mask) then |
assert false |
report "Check " & |
str(v_pltbutils_chk_cnt.value) & -- VHDL-2002 |
--str(v_pltbutils_chk_cnt) & -- VHDL-1993 |
"; " & rpt & |
"; Data=" & hxstr(data, "0x") & |
" Expected=" & hxstr(expected, "0x") & |
" Mask=" & hxstr(mask, "0x") & |
" " & --str('lf') & |
" in test " & |
str(v_pltbutils_test_num.value) & -- VHDL-2002 |
--str(v_pltbutils_test_num) & -- VHDL-1993 |
" " & |
v_pltbutils_test_name.value -- VHDL-2002 |
--v_pltbutils_test_name -- VHDL-1993 |
severity error; |
v_pltbutils_err_cnt.inc; -- VHDL-2002 |
--v_pltbutils_err_cnt := v_pltbutils_err_cnt + 1; -- VHDL-1993 |
end if; |
pltbutils_sc_update(pltbutils_sc); |
end procedure check; |
|
-- check std_logic_vector against integer |
procedure check( |
constant rpt : in string; |
constant data : in std_logic_vector; |
constant expected : in integer; |
signal pltbutils_sc : out pltbutils_sc_t |
) is |
begin |
check(rpt, data, std_logic_vector(to_signed(expected, data'length)), pltbutils_sc); |
end procedure check; |
|
-- check std_logic_vector with mask against integer |
procedure check( |
constant rpt : in string; |
constant data : in std_logic_vector; |
constant expected : in integer; |
constant mask : in std_logic_vector; |
signal pltbutils_sc : out pltbutils_sc_t |
) is |
begin |
check(rpt, data, std_logic_vector(to_signed(expected, data'length)), mask, pltbutils_sc); |
end procedure check; |
|
-- check unsigned |
procedure check( |
constant rpt : in string; |
constant data : in unsigned; |
constant expected : in unsigned; |
signal pltbutils_sc : out pltbutils_sc_t |
) is |
begin |
v_pltbutils_chk_cnt.inc; -- VHDL-2002 |
--v_pltbutils_chk_cnt := v_pltbutils_chk_cnt + 1; -- VHDL-1993 |
if data /= expected then |
assert false |
report "Check " & |
str(v_pltbutils_chk_cnt.value) & -- VHDL-2002 |
--str(v_pltbutils_chk_cnt) & -- VHDL-1993 |
"; " & rpt & |
"; Data=" & hxstr(data, "0x") & |
" Expected=" & hxstr(expected, "0x") & |
" " & --str('lf') & |
" in test " & |
str(v_pltbutils_test_num.value) & -- VHDL-2002 |
--str(v_pltbutils_test_num) & -- VHDL-1993 |
" " & |
v_pltbutils_test_name.value -- VHDL-2002 |
--v_pltbutils_test_name -- VHDL-1993 |
severity error; |
v_pltbutils_err_cnt.inc; -- VHDL-2002 |
--v_pltbutils_err_cnt := v_pltbutils_err_cnt + 1; -- VHDL-1993 |
end if; |
pltbutils_sc_update(pltbutils_sc); |
end procedure check; |
|
-- check unsigned against integer |
procedure check( |
constant rpt : in string; |
constant data : in unsigned; |
constant expected : in integer; |
signal pltbutils_sc : out pltbutils_sc_t |
) is |
begin |
check(rpt, data, to_unsigned(expected, data'length), pltbutils_sc); |
end procedure check; |
|
-- check signed |
procedure check( |
constant rpt : in string; |
constant data : in signed; |
constant expected : in signed; |
signal pltbutils_sc : out pltbutils_sc_t |
) is |
begin |
v_pltbutils_chk_cnt.inc; -- VHDL-2002 |
--v_pltbutils_chk_cnt := v_pltbutils_chk_cnt + 1; -- VHDL-1993 |
if data /= expected then |
assert false |
report "Check " & |
str(v_pltbutils_chk_cnt.value) & -- VHDL-2002 |
--str(v_pltbutils_chk_cnt) & -- VHDL-1993 |
"; " & rpt & |
"; Data=" & hxstr(data, "0x") & |
" Expected=" & hxstr(expected, "0x") & |
" " & --str('lf') & |
" in test " & |
str(v_pltbutils_test_num.value) & -- VHDL-2002 |
--str(v_pltbutils_test_num) & -- VHDL-1993 |
" " & |
v_pltbutils_test_name.value -- VHDL-2002 |
--v_pltbutils_test_name -- VHDL-1993 |
severity error; |
v_pltbutils_err_cnt.inc; -- VHDL-2002 |
--v_pltbutils_err_cnt := v_pltbutils_err_cnt + 1; -- VHDL-1993 |
end if; |
pltbutils_sc_update(pltbutils_sc); |
end procedure check; |
|
-- check signed against integer |
-- TODO: find the bug reported by tb_pltbutils when expected is negative (-1): |
-- ** Error: (vsim-86) numstd_conv_unsigned_nu: NATURAL arg value is negative (-1) |
procedure check( |
constant rpt : in string; |
constant data : in signed; |
constant expected : in integer; |
signal pltbutils_sc : out pltbutils_sc_t |
) is |
begin |
check(rpt, data, to_signed(expected, data'length), pltbutils_sc); |
end procedure check; |
|
-- check with boolean expression |
-- Check signal or variable with a boolean expression as argument C_EXPR. |
-- This allowes any kind of check. |
procedure check( |
constant rpt : in string; |
constant expr : in boolean; |
signal pltbutils_sc : out pltbutils_sc_t |
) is |
begin |
v_pltbutils_chk_cnt.inc; -- VHDL-2002 |
--v_pltbutils_chk_cnt := v_pltbutils_chk_cnt + 1; -- VHDL-1993 |
if not expr then |
assert false |
report "Check " & |
str(v_pltbutils_chk_cnt.value) & -- VHDL-2002 |
--str(v_pltbutils_chk_cnt) & -- VHDL-1993 |
"; " & rpt & |
" " & --str('lf') & |
" in test " & |
str(v_pltbutils_test_num.value) & -- VHDL-2002 |
--str(v_pltbutils_test_num) & -- VHDL-1993 |
" " & |
v_pltbutils_test_name.value -- VHDL-2002 |
--v_pltbutils_test_name -- VHDL-1993 |
severity error; |
v_pltbutils_err_cnt.inc; -- VHDL-2002 |
--v_pltbutils_err_cnt := v_pltbutils_err_cnt + 1; -- VHDL-1993 |
end if; |
pltbutils_sc_update(pltbutils_sc); |
end procedure check; |
|
---------------------------------------------------------------------------- |
-- to_ascending |
-- |
-- function to_ascending( |
-- constant s : std_logic_vector |
-- ) return std_logic_vector; |
-- |
-- function to_ascending( |
-- constant s : unsigned |
-- ) return unsigned |
-- |
-- function to_ascending( |
-- constant s : signed |
-- ) return signed; |
-- |
-- Converts a signal or variable to ascending range ("to-range"). |
-- The argument s can have ascending or descending range. |
---------------------------------------------------------------------------- |
function to_ascending( |
constant s : std_logic_vector |
) return std_logic_vector is |
variable r : std_logic_vector(s'low to s'high); |
begin |
for i in r'range loop |
r(i) := s(i); |
end loop; |
return r; |
end function to_ascending; |
|
function to_ascending( |
constant s : unsigned |
) return unsigned is |
variable r : unsigned(s'low to s'high); |
begin |
for i in r'range loop |
r(i) := s(i); |
end loop; |
return r; |
end function to_ascending; |
|
function to_ascending( |
constant s : signed |
) return signed is |
variable r : signed(s'low to s'high); |
begin |
for i in r'range loop |
r(i) := s(i); |
end loop; |
return r; |
end function to_ascending; |
|
---------------------------------------------------------------------------- |
-- to_descending |
-- |
-- function to_descending( |
-- constant s : std_logic_vector |
-- ) return std_logic_vector; |
-- |
-- function to_descending( |
-- constant s : unsigned |
-- ) return unsigned |
-- |
-- function to_descending( |
-- constant s : signed |
-- ) return signed; |
-- |
-- Converts a signal or variable to descending range ("downto-range"). |
-- The argument s can have ascending or descending range. |
---------------------------------------------------------------------------- |
function to_descending( |
constant s : std_logic_vector |
) return std_logic_vector is |
variable r : std_logic_vector(s'high downto s'low); |
begin |
for i in r'range loop |
r(i) := s(i); |
end loop; |
return r; |
end function to_descending; |
|
function to_descending( |
constant s : unsigned |
) return unsigned is |
variable r : unsigned(s'high downto s'low); |
begin |
for i in r'range loop |
r(i) := s(i); |
end loop; |
return r; |
end function to_descending; |
|
function to_descending( |
constant s : signed |
) return signed is |
variable r : signed(s'high downto s'low); |
begin |
for i in r'range loop |
r(i) := s(i); |
end loop; |
return r; |
end function to_descending; |
|
---------------------------------------------------------------------------- |
-- hxstr |
-- function hxstr( |
-- constant s : std_logic_vector; |
-- constant prefix : string := "" |
-- ) return string; |
-- |
-- function hxstr( |
-- constant s : unsigned; |
-- constant prefix : string := "" |
-- ) return string; |
-- |
-- function hxstr( |
-- constant s : signed; |
-- constant prefix : string := "" |
-- ) return string; |
-- |
-- Converts a signal to a string in hexadecimal format. |
-- An optional prefix can be specified, e.g. "0x". |
-- |
-- The signal can have ascending range ( "to-range" ) or descending range |
-- ("downto-range"). |
-- |
-- hxstr is a wrapper function for hstr in txt_util. |
-- hstr only support std_logic_vector with descending range. |
-- |
-- Examples: |
-- print("value=" & hxstr(s)); |
-- print("value=" & hxstr(s, "0x")); |
---------------------------------------------------------------------------- |
function hxstr( |
constant s : std_logic_vector; |
constant prefix : string := "" |
) return string is |
begin |
return prefix & hstr(to_descending(s)); |
end function hxstr; |
|
function hxstr( |
constant s : unsigned; |
constant prefix : string := "" |
) return string is |
begin |
return prefix & hstr(to_descending(std_logic_vector(s))); |
end function hxstr; |
|
function hxstr( |
constant s : signed; |
constant prefix : string := "" |
) return string is |
begin |
return prefix & hstr(to_descending(std_logic_vector(s))); |
end function hxstr; |
|
---------------------------------------------------------------------------- |
-- pltbutils internal procedure(s), called from other pltbutils procedures. |
-- Do not to call this/these from user's code. |
-- This/these procedures are undocumented in the specification on purpose. |
---------------------------------------------------------------------------- |
procedure pltbutils_sc_update( |
signal pltbutils_sc : out pltbutils_sc_t |
) is |
begin |
-- VHDL-2002: |
pltbutils_sc.test_num <= v_pltbutils_test_num.value; |
print(pltbutils_sc.test_name, v_pltbutils_test_name.value); |
print(pltbutils_sc.info, v_pltbutils_info.value); |
pltbutils_sc.chk_cnt <= v_pltbutils_chk_cnt.value; |
pltbutils_sc.err_cnt <= v_pltbutils_err_cnt.value; |
pltbutils_sc.stop_sim <= v_pltbutils_stop_sim.value; |
-- VHDL-1993: |
--pltbutils_sc.test_num <= v_pltbutils_test_num; |
--print(pltbutils_sc.test_name, v_pltbutils_test_name); |
--print(pltbutils_sc.info, v_pltbutils_info); |
--pltbutils_sc.chk_cnt <= v_pltbutils_chk_cnt; |
--pltbutils_sc.err_cnt <= v_pltbutils_err_cnt; |
--pltbutils_sc.stop_sim <= v_pltbutils_stop_sim; |
end procedure pltbutils_sc_update; |
|
end package body pltbutils_func_pkg; |
/pltbutils_comp_pkg.vhd
0,0 → 1,86
---------------------------------------------------------------------- |
---- ---- |
---- PlTbUtils Component Declarations ---- |
---- ---- |
---- This file is part of the PlTbUtils project ---- |
---- http://opencores.org/project,pltbutils ---- |
---- ---- |
---- Description: ---- |
---- PlTbUtils is a collection of functions, procedures and ---- |
---- components for easily creating stimuli and checking response ---- |
---- in automatic self-checking testbenches. ---- |
---- ---- |
---- This file declares testbench components, which are defined ---- |
---- in pltbutils_comp.vhd . ---- |
---- "use" this file in your testbech, e.g. ---- |
---- use work.pltbutils_comp_pkg.all; ---- |
---- ---- |
---- ---- |
---- To Do: ---- |
---- - ---- |
---- ---- |
---- Author(s): ---- |
---- - Per Larsson, pela@opencores.org ---- |
---- ---- |
---------------------------------------------------------------------- |
---- ---- |
---- Copyright (C) 2013 Authors and OPENCORES.ORG ---- |
---- ---- |
---- This source file may be used and distributed without ---- |
---- restriction provided that this copyright statement is not ---- |
---- removed from the file and that any derivative work contains ---- |
---- the original copyright notice and the associated disclaimer. ---- |
---- ---- |
---- This source file is free software; you can redistribute it ---- |
---- and/or modify it under the terms of the GNU Lesser General ---- |
---- Public License as published by the Free Software Foundation; ---- |
---- either version 2.1 of the License, or (at your option) any ---- |
---- later version. ---- |
---- ---- |
---- This source is distributed in the hope that it will be ---- |
---- useful, but WITHOUT ANY WARRANTY; without even the implied ---- |
---- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ---- |
---- PURPOSE. See the GNU Lesser General Public License for more ---- |
---- details. ---- |
---- ---- |
---- You should have received a copy of the GNU Lesser General ---- |
---- Public License along with this source; if not, download it ---- |
---- from http://www.opencores.org/lgpl.shtml ---- |
---- ---- |
---------------------------------------------------------------------- |
|
library ieee; |
use ieee.std_logic_1164.all; |
|
package pltbutils_comp_pkg is |
|
-- See pltbutils_comp.vhd for a description of the components. |
|
component pltbutils_clkgen is |
generic ( |
G_PERIOD : time := 10 ns; |
G_INITVALUE : std_logic := '0' |
); |
port ( |
clk_o : out std_logic; |
clk_n_o : out std_logic; |
stop_sim_i : in std_logic |
); |
end component pltbutils_clkgen; |
|
-- Instansiation template |
-- (copy to your own file and remove the comment characters): |
--pltbutils_clkgen0 : pltbutils_clkgen |
-- generic map ( |
-- G_PERIOD => G_PERIOD, |
-- G_INITVALUE => '0' |
-- ) |
-- port map ( |
-- clk_o => clk, |
-- clk_n_o => clk_n, |
-- stop_sim_i => stop_sim |
-- ); |
|
end package pltbutils_comp_pkg; |
|
|
/pltbutils_comp.vhd
0,0 → 1,85
---------------------------------------------------------------------- |
---- ---- |
---- PlTbUtils Components ---- |
---- ---- |
---- This file is part of the PlTbUtils project ---- |
---- http://opencores.org/project,pltbutils ---- |
---- ---- |
---- Description: ---- |
---- PlTbUtils is a collection of functions, procedures and ---- |
---- components for easily creating stimuli and checking response ---- |
---- in automatic self-checking testbenches. ---- |
---- ---- |
---- pltbutils_comp.vhd (this file) defines testbench components. ---- |
---- ---- |
---- ---- |
---- To Do: ---- |
---- - ---- |
---- ---- |
---- Author(s): ---- |
---- - Per Larsson, pela@opencores.org ---- |
---- ---- |
---------------------------------------------------------------------- |
---- ---- |
---- Copyright (C) 2013 Authors and OPENCORES.ORG ---- |
---- ---- |
---- This source file may be used and distributed without ---- |
---- restriction provided that this copyright statement is not ---- |
---- removed from the file and that any derivative work contains ---- |
---- the original copyright notice and the associated disclaimer. ---- |
---- ---- |
---- This source file is free software; you can redistribute it ---- |
---- and/or modify it under the terms of the GNU Lesser General ---- |
---- Public License as published by the Free Software Foundation; ---- |
---- either version 2.1 of the License, or (at your option) any ---- |
---- later version. ---- |
---- ---- |
---- This source is distributed in the hope that it will be ---- |
---- useful, but WITHOUT ANY WARRANTY; without even the implied ---- |
---- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ---- |
---- PURPOSE. See the GNU Lesser General Public License for more ---- |
---- details. ---- |
---- ---- |
---- You should have received a copy of the GNU Lesser General ---- |
---- Public License along with this source; if not, download it ---- |
---- from http://www.opencores.org/lgpl.shtml ---- |
---- ---- |
---------------------------------------------------------------------- |
|
---------------------------------------------------------------------- |
-- pltbutils_clkgen |
-- Creates a clock for use in a testbech. |
-- A non-inverted as well as an inverted output is available, |
-- use one or both depending on if you need a single-ended or |
-- differential clock. |
-- The clock stops when input port stop_sim goes '1'. |
-- This makes the simulator stop (unless there are other infinite |
-- processes running in the simulation). |
---------------------------------------------------------------------- |
library ieee; |
use ieee.std_logic_1164.all; |
|
entity pltbutils_clkgen is |
generic ( |
G_PERIOD : time := 10 ns; |
G_INITVALUE : std_logic := '0' |
); |
port ( |
clk_o : out std_logic; |
clk_n_o : out std_logic; |
stop_sim_i : in std_logic |
); |
end entity pltbutils_clkgen; |
|
architecture bhv of pltbutils_clkgen is |
constant C_HALF_PERIOD : time := G_PERIOD / 2; |
signal clk : std_logic := G_INITVALUE; |
begin |
|
clk <= not clk and not stop_sim_i after C_HALF_PERIOD; |
clk_o <= clk; |
clk_n_o <= not clk; |
|
end architecture bhv; |
|
|
/pltbutils_files.lst
0,0 → 1,5
txt_util.vhd |
pltbutils_type_pkg.vhd |
pltbutils_func_pkg.vhd |
pltbutils_comp.vhd |
pltbutils_comp_pkg.vhd |
/pltbutils_type_pkg.vhd
0,0 → 1,155
---------------------------------------------------------------------- |
---- ---- |
---- PlTbUtils Types Package ---- |
---- ---- |
---- This file is part of the PlTbUtils project ---- |
---- http://opencores.org/project,pltbutils ---- |
---- ---- |
---- Description: ---- |
---- PlTbUtils is a collection of functions, procedures and ---- |
---- components for easily creating stimuli and checking response ---- |
---- in automatic self-checking testbenches. ---- |
---- ---- |
---- This file defines types used by PlTbUtils, mainly protected ---- |
---- types. ---- |
---- ---- |
---- ---- |
---- To Do: ---- |
---- - ---- |
---- ---- |
---- Author(s): ---- |
---- - Per Larsson, pela@opencores.org ---- |
---- ---- |
---------------------------------------------------------------------- |
---- ---- |
---- Copyright (C) 2009 Authors and OPENCORES.ORG ---- |
---- ---- |
---- This source file may be used and distributed without ---- |
---- restriction provided that this copyright statement is not ---- |
---- removed from the file and that any derivative work contains ---- |
---- the original copyright notice and the associated disclaimer. ---- |
---- ---- |
---- This source file is free software; you can redistribute it ---- |
---- and/or modify it under the terms of the GNU Lesser General ---- |
---- Public License as published by the Free Software Foundation; ---- |
---- either version 2.1 of the License, or (at your option) any ---- |
---- later version. ---- |
---- ---- |
---- This source is distributed in the hope that it will be ---- |
---- useful, but WITHOUT ANY WARRANTY; without even the implied ---- |
---- warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ---- |
---- PURPOSE. See the GNU Lesser General Public License for more ---- |
---- details. ---- |
---- ---- |
---- You should have received a copy of the GNU Lesser General ---- |
---- Public License along with this source; if not, download it ---- |
---- from http://www.opencores.org/lgpl.shtml ---- |
---- ---- |
---------------------------------------------------------------------- |
library ieee; |
use ieee.std_logic_1164.all; |
|
package pltbutils_type_pkg is |
|
constant C_PLTBUTILS_SC_STRLEN : integer := 80; |
|
type pltbutils_p_integer_t is protected |
procedure clr; |
procedure inc; |
procedure dec; |
procedure set(x : integer); |
impure function value return integer; |
end protected pltbutils_p_integer_t; |
|
type pltbutils_p_std_logic_t is protected |
procedure clr; |
procedure set(x : std_logic); |
impure function value return std_logic; |
end protected pltbutils_p_std_logic_t; |
|
type pltbutils_p_string_t is protected |
procedure clr; |
procedure set(s : string); |
impure function value return string; |
end protected pltbutils_p_string_t; |
|
end package pltbutils_type_pkg; |
|
package body pltbutils_type_pkg is |
---------------------------------------------------------------------------- |
type pltbutils_p_integer_t is protected body |
variable val : integer := 0; |
|
procedure clr is |
begin |
val := 0; |
end procedure clr; |
|
procedure inc is |
begin |
val := val + 1; |
end procedure inc; |
|
procedure dec is |
begin |
val := val - 1; |
end procedure dec; |
|
procedure set(x : integer) is |
begin |
val := x; |
end procedure set; |
|
impure function value return integer is |
begin |
return val; |
end function value; |
end protected body pltbutils_p_integer_t; |
---------------------------------------------------------------------------- |
type pltbutils_p_std_logic_t is protected body |
variable val : std_logic := '0'; |
|
procedure clr is |
begin |
val := '0'; |
end procedure clr; |
|
procedure set(x : std_logic) is |
begin |
val := x; |
end procedure set; |
|
impure function value return std_logic is |
begin |
return val; |
end function value; |
end protected body pltbutils_p_std_logic_t; |
---------------------------------------------------------------------------- |
type pltbutils_p_string_t is protected body |
variable str : string(1 to C_PLTBUTILS_SC_STRLEN) := (others => '0'); |
|
procedure clr is |
begin |
str := (others => ' '); |
end procedure clr; |
|
procedure set(s : string) is |
variable j : positive := s'low; |
begin |
for i in str'range loop |
if j <= s'high then |
str(i) := s(j); |
else |
str(i) := ' '; |
end if; |
j := j + 1; |
end loop; |
end procedure set; |
|
impure function value return string is |
begin |
return str; |
end function value; |
end protected body pltbutils_p_string_t; |
---------------------------------------------------------------------------- |
end package body pltbutils_type_pkg; |
/txt_util.vhd
0,0 → 1,881
---------------------------------------------------------------------- |
---- ---- |
---- txt_util.vhd ---- |
---- ---- |
---- This file is part of the PlTbUtils project ---- |
---- http://opencores.org/project,pltbutils ---- |
---- ---- |
---- Description: ---- |
---- PlTbUtils is a collection of functions, procedures and ---- |
---- components for easily creating stimuli and checking response ---- |
---- in automatic self-checking testbenches. ---- |
---- ---- |
---- This file defines useful functions an procedures for text ---- |
---- handling text in VHDL. ---- |
---- ---- |
---- To Do: ---- |
---- - ---- |
---- ---- |
---- Source: ---- |
---- http://www.mrc.uidaho.edu/mrc/people/jff/vhdl_info/txt_util.vhd - |
---- Thanks to Stefan Doll and James F. Frenzel. ---- ---- |
---------------------------------------------------------------------- |
-- |
-- Disclaimer: Derived from txt_util.vhd on www.stefanvhdl.com |
-- |
-- Revision History: |
-- |
-- 1.0 URL: http://www.stefanvhdl.com/vhdl/vhdl/txt_util.vhd |
-- |
-- 1.1 Modified str_read() to prevent extra character (JFF) |
-- |
-- 1.2 Added is_whitespace() and strip_whitespace() (JFF) |
-- |
-- 1.3 Added first_string() and chomp() (JFF) |
-- |
-- 1.4 Added hex string and integer string conversion (JFF) |
-- |
---------------------------------------------------------------- |
|
library ieee; |
use ieee.std_logic_1164.all; |
use std.textio.all; |
|
package txt_util is |
|
-- prints a message to the screen |
procedure print(text: string); |
|
-- prints the message when active |
-- useful for debug switches |
procedure print(active: boolean; text: string); |
|
-- converts std_logic into a character |
function chr(sl: std_logic) return character; |
|
-- converts std_logic into a string (1 to 1) |
function str(sl: std_logic) return string; |
|
-- converts std_logic_vector into a string (binary base) |
function str(slv: std_logic_vector) return string; |
|
-- converts boolean into a string |
function str(b: boolean) return string; |
|
-- converts an integer into a single character |
-- (can also be used for hex conversion and other bases) |
function chr(int: integer) return character; |
|
-- converts integer into string using specified base |
function str(int: integer; base: integer) return string; |
|
-- converts integer to string, using base 10 |
function str(int: integer) return string; |
|
-- convert std_logic_vector into a string in hex format |
function hstr(slv: std_logic_vector) return string; |
|
|
-- functions to manipulate strings |
----------------------------------- |
|
-- convert a character to upper case |
function to_upper(c: character) return character; |
|
-- convert a character to lower case |
function to_lower(c: character) return character; |
|
-- convert a string to upper case |
function to_upper(s: string) return string; |
|
-- convert a string to lower case |
function to_lower(s: string) return string; |
|
-- checks if whitespace (JFF) |
function is_whitespace(c: character) return boolean; |
|
-- remove leading whitespace (JFF) |
function strip_whitespace(s: string) return string; |
|
-- return first nonwhitespace substring (JFF) |
function first_string(s: string) return string; |
|
-- finds the first non-whitespace substring in a string and (JFF) |
-- returns both the substring and the original with the substring removed |
procedure chomp(variable s: inout string; variable shead: out string); |
|
|
|
|
-- functions to convert strings into other formats |
-------------------------------------------------- |
|
-- converts a character into std_logic |
function to_std_logic(c: character) return std_logic; |
|
-- converts a hex character into std_logic_vector (JFF) |
function chr_to_slv(c: character) return std_logic_vector; |
|
-- converts a character into int (JFF) |
function chr_to_int(c: character) return integer; |
|
-- converts a binary string into std_logic_vector |
function to_std_logic_vector(s: string) return std_logic_vector; |
|
-- converts a hex string into std_logic_vector (JFF) |
function hstr_to_slv(s: string) return std_logic_vector; |
|
-- converts a decimal string into an integer (JFF) |
function str_to_int(s: string) return integer; |
|
|
|
-- file I/O |
----------- |
|
-- read variable length string from input file |
procedure str_read(file in_file: TEXT; |
res_string: out string); |
|
-- print string to a file and start new line |
procedure print(file out_file: TEXT; |
new_string: in string); |
|
-- print character to a file and start new line |
procedure print(file out_file: TEXT; |
char: in character); |
|
end txt_util; |
|
|
|
|
package body txt_util is |
|
|
|
|
-- prints text to the screen |
|
procedure print(text: string) is |
variable msg_line: line; |
begin |
write(msg_line, text); |
writeline(output, msg_line); |
end print; |
|
|
|
|
-- prints text to the screen when active |
|
procedure print(active: boolean; text: string) is |
begin |
if active then |
print(text); |
end if; |
end print; |
|
|
-- converts std_logic into a character |
|
function chr(sl: std_logic) return character is |
variable c: character; |
begin |
case sl is |
when 'U' => c:= 'U'; |
when 'X' => c:= 'X'; |
when '0' => c:= '0'; |
when '1' => c:= '1'; |
when 'Z' => c:= 'Z'; |
when 'W' => c:= 'W'; |
when 'L' => c:= 'L'; |
when 'H' => c:= 'H'; |
when '-' => c:= '-'; |
end case; |
return c; |
end chr; |
|
|
|
-- converts std_logic into a string (1 to 1) |
|
function str(sl: std_logic) return string is |
variable s: string(1 to 1); |
begin |
s(1) := chr(sl); |
return s; |
end str; |
|
|
|
-- converts std_logic_vector into a string (binary base) |
-- (this also takes care of the fact that the range of |
-- a string is natural while a std_logic_vector may |
-- have an integer range) |
|
function str(slv: std_logic_vector) return string is |
variable result : string (1 to slv'length); |
variable r : integer; |
begin |
r := 1; |
for i in slv'range loop |
result(r) := chr(slv(i)); |
r := r + 1; |
end loop; |
return result; |
end str; |
|
|
function str(b: boolean) return string is |
|
begin |
if b then |
return "true"; |
else |
return "false"; |
end if; |
end str; |
|
|
-- converts an integer into a character |
-- for 0 to 9 the obvious mapping is used, higher |
-- values are mapped to the characters A-Z |
-- (this is usefull for systems with base > 10) |
-- (adapted from Steve Vogwell's posting in comp.lang.vhdl) |
|
function chr(int: integer) return character is |
variable c: character; |
begin |
case int is |
when 0 => c := '0'; |
when 1 => c := '1'; |
when 2 => c := '2'; |
when 3 => c := '3'; |
when 4 => c := '4'; |
when 5 => c := '5'; |
when 6 => c := '6'; |
when 7 => c := '7'; |
when 8 => c := '8'; |
when 9 => c := '9'; |
when 10 => c := 'A'; |
when 11 => c := 'B'; |
when 12 => c := 'C'; |
when 13 => c := 'D'; |
when 14 => c := 'E'; |
when 15 => c := 'F'; |
when 16 => c := 'G'; |
when 17 => c := 'H'; |
when 18 => c := 'I'; |
when 19 => c := 'J'; |
when 20 => c := 'K'; |
when 21 => c := 'L'; |
when 22 => c := 'M'; |
when 23 => c := 'N'; |
when 24 => c := 'O'; |
when 25 => c := 'P'; |
when 26 => c := 'Q'; |
when 27 => c := 'R'; |
when 28 => c := 'S'; |
when 29 => c := 'T'; |
when 30 => c := 'U'; |
when 31 => c := 'V'; |
when 32 => c := 'W'; |
when 33 => c := 'X'; |
when 34 => c := 'Y'; |
when 35 => c := 'Z'; |
when others => c := '?'; |
end case; |
return c; |
end chr; |
|
|
|
-- convert integer to string using specified base |
-- (adapted from Steve Vogwell's posting in comp.lang.vhdl) |
|
function str(int: integer; base: integer) return string is |
|
variable temp: string(1 to 10); |
variable num: integer; |
variable abs_int: integer; |
variable len: integer := 1; |
variable power: integer := 1; |
|
begin |
|
-- bug fix for negative numbers |
abs_int := abs(int); |
|
num := abs_int; |
|
while num >= base loop -- Determine how many |
len := len + 1; -- characters required |
num := num / base; -- to represent the |
end loop ; -- number. |
|
for i in len downto 1 loop -- Convert the number to |
temp(i) := chr(abs_int/power mod base); -- a string starting |
power := power * base; -- with the right hand |
end loop ; -- side. |
|
-- return result and add sign if required |
if int < 0 then |
return '-'& temp(1 to len); |
else |
return temp(1 to len); |
end if; |
|
end str; |
|
|
-- convert integer to string, using base 10 |
function str(int: integer) return string is |
|
begin |
|
return str(int, 10) ; |
|
end str; |
|
|
|
-- converts a std_logic_vector into a hex string. |
function hstr(slv: std_logic_vector) return string is |
variable hexlen: integer; |
variable longslv : std_logic_vector(67 downto 0) := (others => '0'); |
variable hex : string(1 to 16); |
variable fourbit : std_logic_vector(3 downto 0); |
begin |
hexlen := (slv'left+1)/4; |
if (slv'left+1) mod 4 /= 0 then |
hexlen := hexlen + 1; |
end if; |
longslv(slv'left downto 0) := slv; |
for i in (hexlen -1) downto 0 loop |
fourbit := longslv(((i*4)+3) downto (i*4)); |
case fourbit is |
when "0000" => hex(hexlen -I) := '0'; |
when "0001" => hex(hexlen -I) := '1'; |
when "0010" => hex(hexlen -I) := '2'; |
when "0011" => hex(hexlen -I) := '3'; |
when "0100" => hex(hexlen -I) := '4'; |
when "0101" => hex(hexlen -I) := '5'; |
when "0110" => hex(hexlen -I) := '6'; |
when "0111" => hex(hexlen -I) := '7'; |
when "1000" => hex(hexlen -I) := '8'; |
when "1001" => hex(hexlen -I) := '9'; |
when "1010" => hex(hexlen -I) := 'A'; |
when "1011" => hex(hexlen -I) := 'B'; |
when "1100" => hex(hexlen -I) := 'C'; |
when "1101" => hex(hexlen -I) := 'D'; |
when "1110" => hex(hexlen -I) := 'E'; |
when "1111" => hex(hexlen -I) := 'F'; |
when "ZZZZ" => hex(hexlen -I) := 'z'; |
when "UUUU" => hex(hexlen -I) := 'u'; |
when "XXXX" => hex(hexlen -I) := 'x'; |
when others => hex(hexlen -I) := '?'; |
end case; |
end loop; |
return hex(1 to hexlen); |
end hstr; |
|
|
|
-- functions to manipulate strings |
----------------------------------- |
|
|
-- convert a character to upper case |
|
function to_upper(c: character) return character is |
|
variable u: character; |
|
begin |
|
case c is |
when 'a' => u := 'A'; |
when 'b' => u := 'B'; |
when 'c' => u := 'C'; |
when 'd' => u := 'D'; |
when 'e' => u := 'E'; |
when 'f' => u := 'F'; |
when 'g' => u := 'G'; |
when 'h' => u := 'H'; |
when 'i' => u := 'I'; |
when 'j' => u := 'J'; |
when 'k' => u := 'K'; |
when 'l' => u := 'L'; |
when 'm' => u := 'M'; |
when 'n' => u := 'N'; |
when 'o' => u := 'O'; |
when 'p' => u := 'P'; |
when 'q' => u := 'Q'; |
when 'r' => u := 'R'; |
when 's' => u := 'S'; |
when 't' => u := 'T'; |
when 'u' => u := 'U'; |
when 'v' => u := 'V'; |
when 'w' => u := 'W'; |
when 'x' => u := 'X'; |
when 'y' => u := 'Y'; |
when 'z' => u := 'Z'; |
when others => u := c; |
end case; |
|
return u; |
|
end to_upper; |
|
|
-- convert a character to lower case |
|
function to_lower(c: character) return character is |
|
variable l: character; |
|
begin |
|
case c is |
when 'A' => l := 'a'; |
when 'B' => l := 'b'; |
when 'C' => l := 'c'; |
when 'D' => l := 'd'; |
when 'E' => l := 'e'; |
when 'F' => l := 'f'; |
when 'G' => l := 'g'; |
when 'H' => l := 'h'; |
when 'I' => l := 'i'; |
when 'J' => l := 'j'; |
when 'K' => l := 'k'; |
when 'L' => l := 'l'; |
when 'M' => l := 'm'; |
when 'N' => l := 'n'; |
when 'O' => l := 'o'; |
when 'P' => l := 'p'; |
when 'Q' => l := 'q'; |
when 'R' => l := 'r'; |
when 'S' => l := 's'; |
when 'T' => l := 't'; |
when 'U' => l := 'u'; |
when 'V' => l := 'v'; |
when 'W' => l := 'w'; |
when 'X' => l := 'x'; |
when 'Y' => l := 'y'; |
when 'Z' => l := 'z'; |
when others => l := c; |
end case; |
|
return l; |
|
end to_lower; |
|
|
|
-- convert a string to upper case |
|
function to_upper(s: string) return string is |
|
variable uppercase: string (s'range); |
|
begin |
|
for i in s'range loop |
uppercase(i):= to_upper(s(i)); |
end loop; |
return uppercase; |
|
end to_upper; |
|
|
|
-- convert a string to lower case |
|
function to_lower(s: string) return string is |
|
variable lowercase: string (s'range); |
|
begin |
|
for i in s'range loop |
lowercase(i):= to_lower(s(i)); |
end loop; |
return lowercase; |
|
end to_lower; |
|
|
-- checks if whitespace (JFF) |
|
function is_whitespace(c: character) return boolean is |
|
begin |
|
if (c = ' ') or (c = HT) then |
return true; |
else return false; |
end if; |
|
end is_whitespace; |
|
|
-- remove leading whitespace (JFF) |
|
function strip_whitespace(s: string) return string is |
|
variable stemp : string (s'range); |
variable j, k : positive := 1; |
|
begin |
|
-- fill stemp with blanks |
for i in s'range loop |
stemp(i) := ' '; |
end loop; |
|
-- find first non-whitespace in s |
for i in s'range loop |
if is_whitespace(s(i)) then |
j := j + 1; |
else exit; |
end if; |
end loop; |
-- j points to first non-whitespace |
|
-- copy remainder of s into stemp |
-- starting at 1 |
for i in j to s'length loop |
stemp(k) := s(i); |
k := k + 1; |
end loop; |
|
return stemp; |
|
end strip_whitespace; |
|
|
|
-- return first non-whitespacesubstring (JFF) |
|
function first_string(s: string) return string is |
|
variable stemp, s2 : string (s'range); |
|
begin |
|
-- fill s2 with blanks |
for i in s'range loop |
s2(i) := ' '; |
end loop; |
|
-- remove leading whitespace |
stemp := strip_whitespace(s); |
|
-- copy until first whitespace |
for i in stemp'range loop |
if not is_whitespace(stemp(i)) then |
s2(i) := stemp(i); |
else exit; |
end if; |
end loop; |
|
return s2; |
|
end first_string; |
|
|
|
-- removes first non-whitespace string from a string (JFF) |
|
procedure chomp(variable s: inout string; variable shead: out string) is |
|
variable stemp, stemp2 : string (s'range); |
variable j, k : positive := 1; |
|
begin |
|
-- fill stemp and stemp2 with blanks |
for i in s'range loop |
stemp(i) := ' '; stemp2(i) := ' '; |
end loop; |
|
stemp := strip_whitespace(s); |
|
shead := first_string(stemp); |
|
-- find first whitespace in stemp |
for i in stemp'range loop |
if not is_whitespace(stemp(i)) then |
j := j + 1; |
else exit; |
end if; |
end loop; |
-- j points to first whitespace |
|
-- copy remainder of stemp into stemp2 |
-- starting at 1 |
for i in j to stemp'length loop |
stemp2(k) := stemp(i); |
k := k + 1; |
end loop; |
|
s := stemp2; |
|
end chomp; |
|
|
|
-- functions to convert strings into other types |
|
|
-- converts a character into a std_logic |
|
function to_std_logic(c: character) return std_logic is |
variable sl: std_logic; |
begin |
case c is |
when 'U' => |
sl := 'U'; |
when 'X' => |
sl := 'X'; |
when '0' => |
sl := '0'; |
when '1' => |
sl := '1'; |
when 'Z' => |
sl := 'Z'; |
when 'W' => |
sl := 'W'; |
when 'L' => |
sl := 'L'; |
when 'H' => |
sl := 'H'; |
when '-' => |
sl := '-'; |
when others => |
sl := 'X'; |
end case; |
return sl; |
end to_std_logic; |
|
|
-- converts a character into std_logic_vector (JFF) |
function chr_to_slv(c: character) return std_logic_vector is |
variable slv: std_logic_vector(3 downto 0); |
begin |
case c is |
when '0' => |
slv := "0000"; |
when '1' => |
slv := "0001"; |
when '2' => |
slv := "0010"; |
when '3' => |
slv := "0011"; |
when '4' => |
slv := "0100"; |
when '5' => |
slv := "0101"; |
when '6' => |
slv := "0110"; |
when '7' => |
slv := "0111"; |
when '8' => |
slv := "1000"; |
when '9' => |
slv := "1001"; |
when 'A' | 'a' => |
slv := "1010"; |
when 'B' | 'b' => |
slv := "1011"; |
when 'C' | 'c' => |
slv := "1100"; |
when 'D' | 'd' => |
slv := "1101"; |
when 'E' | 'e' => |
slv := "1110"; |
when 'F' | 'f' => |
slv := "1111"; |
when others => null; |
end case; |
return slv; |
end chr_to_slv; |
|
|
-- converts a character into int (JFF) |
function chr_to_int(c: character) return integer is |
variable x: integer; |
begin |
case c is |
when '0' => |
x := 0; |
when '1' => |
x := 1; |
when '2' => |
x := 2; |
when '3' => |
x := 3; |
when '4' => |
x := 4; |
when '5' => |
x := 5; |
when '6' => |
x := 6; |
when '7' => |
x := 7; |
when '8' => |
x := 8; |
when '9' => |
x := 9; |
when others => null; |
end case; |
return x; |
end chr_to_int; |
|
|
|
-- converts a binary string into std_logic_vector |
|
function to_std_logic_vector(s: string) return std_logic_vector is |
variable slv: std_logic_vector(s'high-s'low downto 0); |
variable k: integer; |
begin |
k := s'high-s'low; |
for i in s'range loop |
slv(k) := to_std_logic(s(i)); |
k := k - 1; |
end loop; |
return slv; |
end to_std_logic_vector; |
|
|
-- converts a hex string into std_logic_vector (JFF) |
function hstr_to_slv(s: string) return std_logic_vector is |
variable slv: std_logic_vector(((s'length*4)-1) downto 0) := (others => '0'); |
variable k: integer; |
begin |
for i in s'range loop |
slv := slv((slv'length - 5) downto 0) & chr_to_slv(s(i)); |
end loop; |
return slv; |
end hstr_to_slv; |
|
-- converts a decimal string into an integer (JFF) |
function str_to_int(s: string) return integer is |
variable k: integer; |
begin |
k := 0; |
for i in s'range loop |
k := (k*10) + chr_to_int(s(i)); |
end loop; |
return k; |
end str_to_int; |
|
|
|
|
|
|
|
---------------- |
-- file I/O -- |
---------------- |
|
|
|
-- read variable length string from input file |
|
procedure str_read(file in_file: TEXT; |
res_string: out string) is |
|
variable l: line; |
variable c: character; |
variable is_string: boolean; |
|
begin |
|
readline(in_file, l); |
-- clear the contents of the result string |
for i in res_string'range loop |
res_string(i) := ' '; |
end loop; |
-- read all characters of the line, up to the length |
-- of the results string |
for i in res_string'range loop |
|
-- JFF - new |
-- |
read(l, c, is_string); |
if is_string then res_string(i) := c; |
else exit; |
end if; |
|
-- JFF - was duplicating the last char if no |
-- space at the end of the line |
-- |
-- read(l, c, is_string); |
-- res_string(i) := c; |
-- if not is_string then -- found end of line |
-- exit; |
-- end if; |
|
|
end loop; |
|
end str_read; |
|
|
-- print string to a file |
procedure print(file out_file: TEXT; |
new_string: in string) is |
|
variable l: line; |
|
begin |
|
write(l, new_string); |
writeline(out_file, l); |
|
end print; |
|
|
-- print character to a file and start new line |
procedure print(file out_file: TEXT; |
char: in character) is |
|
variable l: line; |
|
begin |
|
write(l, char); |
writeline(out_file, l); |
|
end print; |
|
|
|
-- appends contents of a string to a file until line feed occurs |
-- (LF is considered to be the end of the string) |
|
procedure str_write(file out_file: TEXT; |
new_string: in string) is |
begin |
|
for i in new_string'range loop |
print(out_file, new_string(i)); |
if new_string(i) = LF then -- end of string |
exit; |
end if; |
end loop; |
|
end str_write; |
|
|
|
|
end txt_util; |
|
|
|
|