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Diffstat (limited to 'testsuite/vests/vhdl-93/billowitch/compliant/tc1207.vhd')
-rw-r--r-- | testsuite/vests/vhdl-93/billowitch/compliant/tc1207.vhd | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/testsuite/vests/vhdl-93/billowitch/compliant/tc1207.vhd b/testsuite/vests/vhdl-93/billowitch/compliant/tc1207.vhd new file mode 100644 index 000000000..b639ef333 --- /dev/null +++ b/testsuite/vests/vhdl-93/billowitch/compliant/tc1207.vhd @@ -0,0 +1,140 @@ + +-- Copyright (C) 2001 Bill Billowitch. + +-- Some of the work to develop this test suite was done with Air Force +-- support. The Air Force and Bill Billowitch assume no +-- responsibilities for this software. + +-- This file is part of VESTs (Vhdl tESTs). + +-- VESTs is free software; you can redistribute it and/or modify it +-- under the terms of the GNU General Public License as published by the +-- Free Software Foundation; either version 2 of the License, or (at +-- your option) any later version. + +-- VESTs 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 General Public License +-- for more details. + +-- You should have received a copy of the GNU General Public License +-- along with VESTs; if not, write to the Free Software Foundation, +-- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +-- --------------------------------------------------------------------- +-- +-- $Id: tc1207.vhd,v 1.2 2001-10-26 16:29:39 paw Exp $ +-- $Revision: 1.2 $ +-- +-- --------------------------------------------------------------------- + +package c08s01b00x00p08n04i01207pkg is + + -- Type declarations. + type SWITCH_LEVEL is ( '0', '1', 'X' ); + type S_logic_vector is array(positive range <>) of SWITCH_LEVEL; + + -- Define the bus resolution function. + function switchf( s : S_logic_vector ) return SWITCH_LEVEL; + + -- Further type declarations. + subtype SWITCH_T is switchF SWITCH_LEVEL; + type WORD is array(0 to 31) of SWITCH_T; + +end c08s01b00x00p08n04i01207pkg; + +package body c08s01b00x00p08n04i01207pkg is + + function switchf( s : S_logic_vector ) return SWITCH_LEVEL is + begin + return( S(1) ); + end switchf; + +end c08s01b00x00p08n04i01207pkg; + +use work.c08s01b00x00p08n04i01207pkg.all; +ENTITY c08s01b00x00p08n04i01207ent IS +END c08s01b00x00p08n04i01207ent; + +ARCHITECTURE c08s01b00x00p08n04i01207arch OF c08s01b00x00p08n04i01207ent IS + + -- Local types. + type WORD2 is array(0 to 31) of SWITCH_LEVEL; + + -- Local signals. + signal A, B : WORD; + signal UnResolved : WORD2; + +BEGIN + TESTING: PROCESS + -- Constant declarations. + constant One : INTEGER := 1; + constant Two : INTEGER := 2; + + -- Local variables. + variable ShouldBeTime : TIME; + variable I : INTEGER; + variable k : integer := 0; + BEGIN + -- 1. Test waiting on static signals. + for I in 0 to 31 loop + A( I ) <= 'X' after (I * 1 ns); + end loop; + ShouldBeTime := NOW + 31 ns; + wait until (A(31) = 'X'); + + -- Should wake up when the A(31) assignment takes place. + if (A(31) /= 'X' and ShouldBeTime /= NOW) then + k := 1; + end if; + assert (A(31) = 'X'); + assert (ShouldBeTime = NOW); + + -- 2. Test waiting on non-static signals. (should still have same behavior, but just be slower) + for I in 0 to 31 loop + A( I ) <= '1' after (I * 1 ns); + end loop; + ShouldBeTime := NOW + 31 ns; + I := 31; + wait until (A(I) = '1'); + + -- Should wake up when the A(31) assignment takes place. + if (A(I) /= '1' and ShouldBeTime /= NOW) then + k := 1; + end if; + assert (A(I) = '1'); + assert (ShouldBeTime = NOW); + + -- 3. Test that waiting on a variable expression merely times-out. + ShouldBeTime := NOW + 35 ns; + wait until (I = 47) for 35 ns; + if (ShouldBeTime /= NOW) then + k := 1; + end if; + assert (ShouldBeTime = NOW); + + -- 4. Perform same test as '1' on a signal not resolved at the scalar subelement level. + UnResolved <= ( 'X','X','X','X','X','X','X','X','X','X', + 'X','X','X','X','X','X','X','X','X','X', + 'X','X','X','X','X','X','X','X','X','X', + 'X','X' ) after 31 ns; + ShouldBeTime := NOW + 31 ns; + wait until (UnResolved(31) = 'X'); + + -- Should wake up when the UnResolved(31) assignment takes place. + if (UnResolved(31) /= 'X' and ShouldBeTime /= NOW) then + k := 1; + end if; + assert (UnResolved(31) = 'X'); + assert (ShouldBeTime = NOW); + + assert NOT(k=0) + report "***PASSED TEST: c08s01b00x00p08n04i01207" + severity NOTE; + assert ( k=0 ) + report "***FAILED TEST: c08s01b00x00p08n04i01207 - The sensitivity set of a wait statement will contain the signal denoted by the longest static prefix of each signal name if no sensitivity clause." + severity ERROR; + wait; + END PROCESS TESTING; + +END c08s01b00x00p08n04i01207arch; |