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author | Tristan Gingold <tgingold@free.fr> | 2013-12-20 04:48:54 +0100 |
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committer | Tristan Gingold <tgingold@free.fr> | 2013-12-20 04:48:54 +0100 |
commit | 6c3f709174e8e4d5411f851cedb7d84c38d3b04a (patch) | |
tree | bd12c79c71a2ee65899a9ade9919ec2045addef8 /testsuite/vests/vhdl-93/ashenden/compliant/ch_04_ch_04_07.vhd | |
parent | bd4aff0f670351c0652cf24e9b04361dc0e3a01c (diff) | |
download | ghdl-6c3f709174e8e4d5411f851cedb7d84c38d3b04a.tar.gz ghdl-6c3f709174e8e4d5411f851cedb7d84c38d3b04a.tar.bz2 ghdl-6c3f709174e8e4d5411f851cedb7d84c38d3b04a.zip |
Import vests testsuite
Diffstat (limited to 'testsuite/vests/vhdl-93/ashenden/compliant/ch_04_ch_04_07.vhd')
-rw-r--r-- | testsuite/vests/vhdl-93/ashenden/compliant/ch_04_ch_04_07.vhd | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/testsuite/vests/vhdl-93/ashenden/compliant/ch_04_ch_04_07.vhd b/testsuite/vests/vhdl-93/ashenden/compliant/ch_04_ch_04_07.vhd new file mode 100644 index 000000000..675f60923 --- /dev/null +++ b/testsuite/vests/vhdl-93/ashenden/compliant/ch_04_ch_04_07.vhd @@ -0,0 +1,89 @@ + +-- Copyright (C) 1996 Morgan Kaufmann Publishers, Inc + +-- 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: ch_04_ch_04_07.vhd,v 1.2 2001-10-26 16:29:33 paw Exp $ +-- $Revision: 1.2 $ +-- +-- --------------------------------------------------------------------- + +entity ch_04_07 is + +end entity ch_04_07; + + +---------------------------------------------------------------- + + +architecture test of ch_04_07 is +begin + + + process_04_3_a : process is + + -- code from book: + + subtype pixel_row is bit_vector (0 to 15); + variable current_row, mask : pixel_row; + + -- end of code from book + + begin + + current_row := "0000000011111111"; + mask := "0000111111110000"; + + -- code from book: + + current_row := current_row and not mask; + current_row := current_row xor X"FFFF"; + + -- end of code from book + + -- code from book (conditions only): + + assert B"10001010" sll 3 = B"01010000"; + assert B"10001010" sll -2 = B"00100010"; + + assert B"10010111" srl 2 = B"00100101"; + assert B"10010111" srl -6 = B"11000000"; + + assert B"01001011" sra 3 = B"00001001"; + assert B"10010111" sra 3 = B"11110010"; + assert B"00001100" sla 2 = B"00110000"; + assert B"00010001" sla 2 = B"01000111"; + + assert B"00010001" sra -2 = B"01000111"; + assert B"00110000" sla -2 = B"00001100"; + + assert B"10010011" rol 1 = B"00100111"; + assert B"10010011" ror 1 = B"11001001"; + + assert "abc" & 'd' = "abcd"; + assert 'w' & "xyz" = "wxyz"; + assert 'a' & 'b' = "ab"; + + -- end of code from book + + wait; + end process process_04_3_a; + + +end architecture test; |