diff options
author | Tristan Gingold | 2013-12-20 04:48:54 +0100 |
---|---|---|
committer | Tristan Gingold | 2013-12-20 04:48:54 +0100 |
commit | 6c3f709174e8e4d5411f851cedb7d84c38d3b04a (patch) | |
tree | bd12c79c71a2ee65899a9ade9919ec2045addef8 /testsuite/vests/vhdl-ams/ashenden/compliant/resolution/computer_system.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-ams/ashenden/compliant/resolution/computer_system.vhd')
-rw-r--r-- | testsuite/vests/vhdl-ams/ashenden/compliant/resolution/computer_system.vhd | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/testsuite/vests/vhdl-ams/ashenden/compliant/resolution/computer_system.vhd b/testsuite/vests/vhdl-ams/ashenden/compliant/resolution/computer_system.vhd new file mode 100644 index 0000000..6bd829c --- /dev/null +++ b/testsuite/vests/vhdl-ams/ashenden/compliant/resolution/computer_system.vhd @@ -0,0 +1,118 @@ + +-- Copyright (C) 2002 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 + +use work.words.all; + +entity cpu is + port ( address : out uword; data : inout uword; -- . . . ); + -- not in book + other_port : in X01Z := 'Z' ); + -- end not in book +end entity cpu; + + +-- not in book + +architecture behavioral of cpu is +begin +end architecture behavioral; + +-- end not in book + + +-------------------------------------------------- + +use work.words.all; + +entity memory is + port ( address : in uword; data : inout uword; -- . . . ); + -- not in book + other_port : in X01Z := 'Z' ); + -- end not in book +end entity memory; + + +-- not in book + +architecture behavioral of memory is +begin +end architecture behavioral; + +-- end not in book + + +-------------------------------------------------- + + +-- not in book + +use work.words.all; + +entity ROM is + port ( a : in uword; d : out ubyte; other_port : in X01Z := 'Z' ); +end entity ROM; + + +architecture behavioral of ROM is +begin +end architecture behavioral; + + +entity computer_system is +end entity computer_system; + +-- end not in book + + + +architecture top_level of computer_system is + + use work.words.all; + + signal address : uword; + signal data : word; + -- . . . + +begin + + the_cpu : entity work.cpu(behavioral) + port map ( address, data, -- . . . ); + -- not in book + open ); + -- end not in book + + the_memory : entity work.memory(behavioral) + port map ( address, data, -- . . . ); + -- not in book + open ); + -- end not in book + + -- . . . + + -- code from book (in text) + +-- boot_rom : entity work.ROM(behavioral) +-- port map ( a => address, d => data(24 to 31), -- . . . ); -- illegal +-- -- not in book +-- other_port => open ); +-- -- end not in book + + -- end code from book + +end architecture top_level; |