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 // [[CITE]] EDIF Version 2 0 0 Grammar
21 // http://web.archive.org/web/20050730021644/http://www.edif.org/documentation/BNF_GRAMMAR/index.html
23 #include "kernel/rtlil.h"
24 #include "kernel/register.h"
25 #include "kernel/sigtools.h"
26 #include "kernel/celltypes.h"
27 #include "kernel/log.h"
31 PRIVATE_NAMESPACE_BEGIN
33 #define EDIF_DEF(_id) edif_names(RTLIL::unescape_id(_id), true).c_str()
34 #define EDIF_DEFR(_id, _ren, _bl, _br) edif_names(RTLIL::unescape_id(_id), true, _ren, _bl, _br).c_str()
35 #define EDIF_REF(_id) edif_names(RTLIL::unescape_id(_id), false).c_str()
40 char delim_left
, delim_right
;
41 std::set
<std::string
> generated_names
, used_names
;
42 std::map
<std::string
, std::string
> name_map
;
44 EdifNames() : counter(1), delim_left('['), delim_right(']') { }
46 std::string
operator()(std::string id
, bool define
, bool port_rename
= false, int range_left
= 0, int range_right
= 0)
49 std::string new_id
= operator()(id
, false);
51 return stringf("(rename %s \"%s%c%d:%d%c\")", new_id
.c_str(), id
.c_str(), delim_left
, range_left
, range_right
, delim_right
);
52 return new_id
!= id
? stringf("(rename %s \"%s\")", new_id
.c_str(), id
.c_str()) : id
;
55 if (name_map
.count(id
) > 0)
56 return name_map
.at(id
);
57 if (generated_names
.count(id
) > 0)
59 if (id
== "GND" || id
== "VCC")
62 for (size_t i
= 0; i
< id
.size(); i
++) {
63 if ('A' <= id
[i
] && id
[i
] <= 'Z')
65 if ('a' <= id
[i
] && id
[i
] <= 'z')
67 if ('0' <= id
[i
] && id
[i
] <= '9' && i
> 0)
69 if (id
[i
] == '_' && i
> 0 && i
!= id
.size()-1)
74 used_names
.insert(id
);
80 gen_name
= stringf("id%05d", counter
++);
81 if (generated_names
.count(gen_name
) == 0 &&
82 used_names
.count(gen_name
) == 0)
85 generated_names
.insert(gen_name
);
86 name_map
[id
] = gen_name
;
91 struct EdifBackend
: public Backend
{
92 EdifBackend() : Backend("edif", "write design to EDIF netlist file") { }
93 void help() YS_OVERRIDE
95 // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
97 log(" write_edif [options] [filename]\n");
99 log("Write the current design to an EDIF netlist file.\n");
101 log(" -top top_module\n");
102 log(" set the specified module as design top module\n");
105 log(" do not create \"GND\" and \"VCC\" cells. (this will produce an error\n");
106 log(" if the design contains constant nets. use \"hilomap\" to map to custom\n");
107 log(" constant drivers first)\n");
109 log(" -pvector {par|bra|ang}\n");
110 log(" sets the delimiting character for module port rename clauses to\n");
111 log(" parentheses, square brackets, or angle brackets.\n");
113 log("Unfortunately there are different \"flavors\" of the EDIF file format. This\n");
114 log("command generates EDIF files for the Xilinx place&route tools. It might be\n");
115 log("necessary to make small modifications to this command when a different tool\n");
116 log("is targeted.\n");
119 void execute(std::ostream
*&f
, std::string filename
, std::vector
<std::string
> args
, RTLIL::Design
*design
) YS_OVERRIDE
121 log_header(design
, "Executing EDIF backend.\n");
122 std::string top_module_name
;
123 bool port_rename
= false;
124 std::map
<RTLIL::IdString
, std::map
<RTLIL::IdString
, int>> lib_cell_ports
;
125 bool nogndvcc
= false;
126 CellTypes
ct(design
);
127 EdifNames edif_names
;
130 for (argidx
= 1; argidx
< args
.size(); argidx
++)
132 if (args
[argidx
] == "-top" && argidx
+1 < args
.size()) {
133 top_module_name
= args
[++argidx
];
136 if (args
[argidx
] == "-nogndvcc") {
140 if (args
[argidx
] == "-pvector" && argidx
+1 < args
.size()) {
143 parray
= args
[++argidx
];
144 if (parray
== "par") {
145 edif_names
.delim_left
= '(';edif_names
.delim_right
= ')';
146 } else if (parray
== "ang") {
147 edif_names
.delim_left
= '<';edif_names
.delim_right
= '>';
149 edif_names
.delim_left
= '[';edif_names
.delim_right
= ']';
155 extra_args(f
, filename
, args
, argidx
);
157 if (top_module_name
.empty())
158 for (auto & mod_it
:design
->modules_
)
159 if (mod_it
.second
->get_bool_attribute("\\top"))
160 top_module_name
= mod_it
.first
.str();
162 for (auto module_it
: design
->modules_
)
164 RTLIL::Module
*module
= module_it
.second
;
165 if (module
->get_bool_attribute("\\blackbox"))
168 if (top_module_name
.empty())
169 top_module_name
= module
->name
.str();
171 if (module
->processes
.size() != 0)
172 log_error("Found unmapped processes in module %s: unmapped processes are not supported in EDIF backend!\n", RTLIL::id2cstr(module
->name
));
173 if (module
->memories
.size() != 0)
174 log_error("Found unmapped memories in module %s: unmapped memories are not supported in EDIF backend!\n", RTLIL::id2cstr(module
->name
));
176 for (auto cell_it
: module
->cells_
)
178 RTLIL::Cell
*cell
= cell_it
.second
;
179 if (!design
->modules_
.count(cell
->type
) || design
->modules_
.at(cell
->type
)->get_bool_attribute("\\blackbox")) {
180 lib_cell_ports
[cell
->type
];
181 for (auto p
: cell
->connections())
182 lib_cell_ports
[cell
->type
][p
.first
] = GetSize(p
.second
);
187 if (top_module_name
.empty())
188 log_error("No module found in design!\n");
190 *f
<< stringf("(edif %s\n", EDIF_DEF(top_module_name
));
191 *f
<< stringf(" (edifVersion 2 0 0)\n");
192 *f
<< stringf(" (edifLevel 0)\n");
193 *f
<< stringf(" (keywordMap (keywordLevel 0))\n");
194 *f
<< stringf(" (comment \"Generated by %s\")\n", yosys_version_str
);
196 *f
<< stringf(" (external LIB\n");
197 *f
<< stringf(" (edifLevel 0)\n");
198 *f
<< stringf(" (technology (numberDefinition))\n");
202 *f
<< stringf(" (cell GND\n");
203 *f
<< stringf(" (cellType GENERIC)\n");
204 *f
<< stringf(" (view VIEW_NETLIST\n");
205 *f
<< stringf(" (viewType NETLIST)\n");
206 *f
<< stringf(" (interface (port G (direction OUTPUT)))\n");
207 *f
<< stringf(" )\n");
208 *f
<< stringf(" )\n");
210 *f
<< stringf(" (cell VCC\n");
211 *f
<< stringf(" (cellType GENERIC)\n");
212 *f
<< stringf(" (view VIEW_NETLIST\n");
213 *f
<< stringf(" (viewType NETLIST)\n");
214 *f
<< stringf(" (interface (port P (direction OUTPUT)))\n");
215 *f
<< stringf(" )\n");
216 *f
<< stringf(" )\n");
219 for (auto &cell_it
: lib_cell_ports
) {
220 *f
<< stringf(" (cell %s\n", EDIF_DEF(cell_it
.first
));
221 *f
<< stringf(" (cellType GENERIC)\n");
222 *f
<< stringf(" (view VIEW_NETLIST\n");
223 *f
<< stringf(" (viewType NETLIST)\n");
224 *f
<< stringf(" (interface\n");
225 for (auto &port_it
: cell_it
.second
) {
226 const char *dir
= "INOUT";
227 if (ct
.cell_known(cell_it
.first
)) {
228 if (!ct
.cell_output(cell_it
.first
, port_it
.first
))
230 else if (!ct
.cell_input(cell_it
.first
, port_it
.first
))
233 if (port_it
.second
== 1)
234 *f
<< stringf(" (port %s (direction %s))\n", EDIF_DEF(port_it
.first
), dir
);
236 int b
[2] = {port_it
.second
-1, 0};
237 auto m
= design
->module(cell_it
.first
);
239 auto w
= m
->wire(port_it
.first
);
241 b
[w
->upto
? 0 : 1] = w
->start_offset
;
242 b
[w
->upto
? 1 : 0] = w
->start_offset
+GetSize(w
)-1;
245 *f
<< stringf(" (port (array %s %d) (direction %s))\n", EDIF_DEFR(port_it
.first
, port_rename
, b
[0], b
[1]), port_it
.second
, dir
);
248 *f
<< stringf(" )\n");
249 *f
<< stringf(" )\n");
250 *f
<< stringf(" )\n");
252 *f
<< stringf(" )\n");
254 std::vector
<RTLIL::Module
*> sorted_modules
;
256 // extract module dependencies
257 std::map
<RTLIL::Module
*, std::set
<RTLIL::Module
*>> module_deps
;
258 for (auto &mod_it
: design
->modules_
) {
259 module_deps
[mod_it
.second
] = std::set
<RTLIL::Module
*>();
260 for (auto &cell_it
: mod_it
.second
->cells_
)
261 if (design
->modules_
.count(cell_it
.second
->type
) > 0)
262 module_deps
[mod_it
.second
].insert(design
->modules_
.at(cell_it
.second
->type
));
265 // simple good-enough topological sort
266 // (O(n*m) on n elements and depth m)
267 while (module_deps
.size() > 0) {
268 size_t sorted_modules_idx
= sorted_modules
.size();
269 for (auto &it
: module_deps
) {
270 for (auto &dep
: it
.second
)
271 if (module_deps
.count(dep
) > 0)
273 // log("Next in topological sort: %s\n", RTLIL::id2cstr(it.first->name));
274 sorted_modules
.push_back(it
.first
);
277 if (sorted_modules_idx
== sorted_modules
.size())
278 log_error("Cyclic dependency between modules found! Cycle includes module %s.\n", RTLIL::id2cstr(module_deps
.begin()->first
->name
));
279 while (sorted_modules_idx
< sorted_modules
.size())
280 module_deps
.erase(sorted_modules
.at(sorted_modules_idx
++));
284 *f
<< stringf(" (library DESIGN\n");
285 *f
<< stringf(" (edifLevel 0)\n");
286 *f
<< stringf(" (technology (numberDefinition))\n");
287 for (auto module
: sorted_modules
)
289 if (module
->get_bool_attribute("\\blackbox"))
292 SigMap
sigmap(module
);
293 std::map
<RTLIL::SigSpec
, std::set
<std::string
>> net_join_db
;
295 *f
<< stringf(" (cell %s\n", EDIF_DEF(module
->name
));
296 *f
<< stringf(" (cellType GENERIC)\n");
297 *f
<< stringf(" (view VIEW_NETLIST\n");
298 *f
<< stringf(" (viewType NETLIST)\n");
299 *f
<< stringf(" (interface\n");
300 for (auto &wire_it
: module
->wires_
) {
301 RTLIL::Wire
*wire
= wire_it
.second
;
302 if (wire
->port_id
== 0)
304 const char *dir
= "INOUT";
305 if (!wire
->port_output
)
307 else if (!wire
->port_input
)
309 if (wire
->width
== 1) {
310 *f
<< stringf(" (port %s (direction %s))\n", EDIF_DEF(wire
->name
), dir
);
311 RTLIL::SigSpec sig
= sigmap(RTLIL::SigSpec(wire
));
312 net_join_db
[sig
].insert(stringf("(portRef %s)", EDIF_REF(wire
->name
)));
315 b
[wire
->upto
? 0 : 1] = wire
->start_offset
;
316 b
[wire
->upto
? 1 : 0] = wire
->start_offset
+ GetSize(wire
) - 1;
317 *f
<< stringf(" (port (array %s %d) (direction %s))\n", EDIF_DEFR(wire
->name
, port_rename
, b
[0], b
[1]), wire
->width
, dir
);
318 for (int i
= 0; i
< wire
->width
; i
++) {
319 RTLIL::SigSpec sig
= sigmap(RTLIL::SigSpec(wire
, i
));
320 net_join_db
[sig
].insert(stringf("(portRef (member %s %d))", EDIF_REF(wire
->name
), GetSize(wire
)-i
-1));
324 *f
<< stringf(" )\n");
325 *f
<< stringf(" (contents\n");
327 *f
<< stringf(" (instance GND (viewRef VIEW_NETLIST (cellRef GND (libraryRef LIB))))\n");
328 *f
<< stringf(" (instance VCC (viewRef VIEW_NETLIST (cellRef VCC (libraryRef LIB))))\n");
330 for (auto &cell_it
: module
->cells_
) {
331 RTLIL::Cell
*cell
= cell_it
.second
;
332 *f
<< stringf(" (instance %s\n", EDIF_DEF(cell
->name
));
333 *f
<< stringf(" (viewRef VIEW_NETLIST (cellRef %s%s))", EDIF_REF(cell
->type
),
334 lib_cell_ports
.count(cell
->type
) > 0 ? " (libraryRef LIB)" : "");
335 for (auto &p
: cell
->parameters
)
336 if ((p
.second
.flags
& RTLIL::CONST_FLAG_STRING
) != 0)
337 *f
<< stringf("\n (property %s (string \"%s\"))", EDIF_DEF(p
.first
), p
.second
.decode_string().c_str());
338 else if (p
.second
.bits
.size() <= 32 && RTLIL::SigSpec(p
.second
).is_fully_def())
339 *f
<< stringf("\n (property %s (integer %u))", EDIF_DEF(p
.first
), p
.second
.as_int());
341 std::string hex_string
= "";
342 for (size_t i
= 0; i
< p
.second
.bits
.size(); i
+= 4) {
344 if (i
+0 < p
.second
.bits
.size() && p
.second
.bits
.at(i
+0) == RTLIL::State::S1
) digit_value
|= 1;
345 if (i
+1 < p
.second
.bits
.size() && p
.second
.bits
.at(i
+1) == RTLIL::State::S1
) digit_value
|= 2;
346 if (i
+2 < p
.second
.bits
.size() && p
.second
.bits
.at(i
+2) == RTLIL::State::S1
) digit_value
|= 4;
347 if (i
+3 < p
.second
.bits
.size() && p
.second
.bits
.at(i
+3) == RTLIL::State::S1
) digit_value
|= 8;
348 char digit_str
[2] = { "0123456789abcdef"[digit_value
], 0 };
349 hex_string
= std::string(digit_str
) + hex_string
;
351 *f
<< stringf("\n (property %s (string \"%d'h%s\"))", EDIF_DEF(p
.first
), GetSize(p
.second
.bits
), hex_string
.c_str());
353 *f
<< stringf(")\n");
354 for (auto &p
: cell
->connections()) {
355 RTLIL::SigSpec sig
= sigmap(p
.second
);
356 for (int i
= 0; i
< GetSize(sig
); i
++)
357 if (sig
[i
].wire
== NULL
&& sig
[i
] != RTLIL::State::S0
&& sig
[i
] != RTLIL::State::S1
)
358 log_warning("Bit %d of cell port %s.%s.%s driven by %s will be left unconnected in EDIF output.\n",
359 i
, log_id(module
), log_id(cell
), log_id(p
.first
), log_signal(sig
[i
]));
360 else if (sig
.size() == 1)
361 net_join_db
[sig
[i
]].insert(stringf("(portRef %s (instanceRef %s))", EDIF_REF(p
.first
), EDIF_REF(cell
->name
)));
363 int member_idx
= GetSize(sig
)-i
-1;
364 auto m
= design
->module(cell
->type
);
366 auto w
= m
->wire(p
.first
);
368 member_idx
= GetSize(w
)-i
-1;
370 net_join_db
[sig
[i
]].insert(stringf("(portRef (member %s %d) (instanceRef %s))",
371 EDIF_REF(p
.first
), member_idx
, EDIF_REF(cell
->name
)));
375 for (auto &it
: net_join_db
) {
376 RTLIL::SigBit sig
= it
.first
;
377 if (sig
.wire
== NULL
&& sig
!= RTLIL::State::S0
&& sig
!= RTLIL::State::S1
) {
378 if (sig
== RTLIL::State::Sx
) {
379 for (auto &ref
: it
.second
)
380 log_warning("Exporting x-bit on %s as zero bit.\n", ref
.c_str());
381 sig
= RTLIL::State::S0
;
383 for (auto &ref
: it
.second
)
384 log_error("Don't know how to handle %s on %s.\n", log_signal(sig
), ref
.c_str());
389 if (sig
== RTLIL::State::S0
)
391 else if (sig
== RTLIL::State::S1
)
394 netname
= log_signal(sig
);
395 for (size_t i
= 0; i
< netname
.size(); i
++)
396 if (netname
[i
] == ' ' || netname
[i
] == '\\')
397 netname
.erase(netname
.begin() + i
--);
399 *f
<< stringf(" (net %s (joined\n", EDIF_DEF(netname
));
400 for (auto &ref
: it
.second
)
401 *f
<< stringf(" %s\n", ref
.c_str());
402 if (sig
.wire
== NULL
) {
404 log_error("Design contains constant nodes (map with \"hilomap\" first).\n");
405 if (sig
== RTLIL::State::S0
)
406 *f
<< stringf(" (portRef G (instanceRef GND))\n");
407 if (sig
== RTLIL::State::S1
)
408 *f
<< stringf(" (portRef P (instanceRef VCC))\n");
410 *f
<< stringf(" ))\n");
412 *f
<< stringf(" )\n");
413 *f
<< stringf(" )\n");
414 *f
<< stringf(" )\n");
416 *f
<< stringf(" )\n");
418 *f
<< stringf(" (design %s\n", EDIF_DEF(top_module_name
));
419 *f
<< stringf(" (cellRef %s (libraryRef DESIGN))\n", EDIF_REF(top_module_name
));
420 *f
<< stringf(" )\n");
422 *f
<< stringf(")\n");
426 PRIVATE_NAMESPACE_END