2 * yosys -- Yosys Open SYnthesis Suite
4 * Copyright (C) 2012 Clifford Wolf <clifford@clifford.at>
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 #include "kernel/register.h"
21 #include "kernel/log.h"
26 PRIVATE_NAMESPACE_BEGIN
28 struct ProcPass
: public Pass
{
29 ProcPass() : Pass("proc", "translate processes to netlists") { }
32 // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
34 log(" proc [options] [selection]\n");
36 log("This pass calls all the other proc_* passes in the most common order.\n");
39 log(" proc_rmdead\n");
43 log(" proc_dlatch\n");
47 log("This replaces the processes in the design with multiplexers,\n");
48 log("flip-flops and latches.\n");
50 log("The following options are supported:\n");
52 log(" -global_arst [!]<netname>\n");
53 log(" This option is passed through to proc_arst.\n");
56 virtual void execute(std::vector
<std::string
> args
, RTLIL::Design
*design
)
58 std::string global_arst
;
60 log_header(design
, "Executing PROC pass (convert processes to netlists).\n");
64 for (argidx
= 1; argidx
< args
.size(); argidx
++)
66 if (args
[argidx
] == "-global_arst" && argidx
+1 < args
.size()) {
67 global_arst
= args
[++argidx
];
72 extra_args(args
, argidx
, design
);
74 Pass::call(design
, "proc_clean");
75 Pass::call(design
, "proc_rmdead");
76 Pass::call(design
, "proc_init");
77 if (global_arst
.empty())
78 Pass::call(design
, "proc_arst");
80 Pass::call(design
, "proc_arst -global_arst " + global_arst
);
81 Pass::call(design
, "proc_mux");
82 Pass::call(design
, "proc_dlatch");
83 Pass::call(design
, "proc_dff");
84 Pass::call(design
, "proc_clean");