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]] Berkeley Logic Interchange Format (BLIF)
21 // University of California. Berkeley. July 28, 1992
22 // http://www.ece.cmu.edu/~ee760/760docs/blif.pdf
24 #include "kernel/rtlil.h"
25 #include "kernel/register.h"
26 #include "kernel/sigtools.h"
27 #include "kernel/celltypes.h"
28 #include "kernel/log.h"
32 PRIVATE_NAMESPACE_BEGIN
34 struct BlifDumperConfig
48 std::string buf_type
, buf_in
, buf_out
;
49 std::map
<RTLIL::IdString
, std::pair
<RTLIL::IdString
, RTLIL::IdString
>> unbuf_types
;
50 std::string true_type
, true_out
, false_type
, false_out
, undef_type
, undef_out
;
52 BlifDumperConfig() : icells_mode(false), conn_mode(false), impltf_mode(false), gates_mode(false),
53 cname_mode(false), iname_mode(false), param_mode(false), attr_mode(false), iattr_mode(false),
54 blackbox_mode(false), noalias_mode(false) { }
60 RTLIL::Module
*module
;
61 RTLIL::Design
*design
;
62 BlifDumperConfig
*config
;
66 dict
<SigBit
, int> init_bits
;
68 BlifDumper(std::ostream
&f
, RTLIL::Module
*module
, RTLIL::Design
*design
, BlifDumperConfig
*config
) :
69 f(f
), module(module
), design(design
), config(config
), ct(design
), sigmap(module
)
71 for (Wire
*wire
: module
->wires())
72 if (wire
->attributes
.count("\\init")) {
73 SigSpec initsig
= sigmap(wire
);
74 Const initval
= wire
->attributes
.at("\\init");
75 for (int i
= 0; i
< GetSize(initsig
) && i
< GetSize(initval
); i
++)
78 init_bits
[initsig
[i
]] = 0;
81 init_bits
[initsig
[i
]] = 1;
89 vector
<shared_str
> cstr_buf
;
90 pool
<SigBit
> cstr_bits_seen
;
92 const char *cstr(RTLIL::IdString id
)
94 std::string str
= RTLIL::unescape_id(id
);
95 for (size_t i
= 0; i
< str
.size(); i
++)
96 if (str
[i
] == '#' || str
[i
] == '=' || str
[i
] == '<' || str
[i
] == '>')
98 cstr_buf
.push_back(str
);
99 return cstr_buf
.back().c_str();
102 const char *cstr(RTLIL::SigBit sig
)
104 cstr_bits_seen
.insert(sig
);
106 if (sig
.wire
== NULL
) {
107 if (sig
== RTLIL::State::S0
) return config
->false_type
== "-" || config
->false_type
== "+" ? config
->false_out
.c_str() : "$false";
108 if (sig
== RTLIL::State::S1
) return config
->true_type
== "-" || config
->true_type
== "+" ? config
->true_out
.c_str() : "$true";
109 return config
->undef_type
== "-" || config
->undef_type
== "+" ? config
->undef_out
.c_str() : "$undef";
112 std::string str
= RTLIL::unescape_id(sig
.wire
->name
);
113 for (size_t i
= 0; i
< str
.size(); i
++)
114 if (str
[i
] == '#' || str
[i
] == '=' || str
[i
] == '<' || str
[i
] == '>')
117 if (sig
.wire
->width
!= 1)
118 str
+= stringf("[%d]", sig
.wire
->upto
? sig
.wire
->start_offset
+sig
.wire
->width
-sig
.offset
-1 : sig
.wire
->start_offset
+sig
.offset
);
120 cstr_buf
.push_back(str
);
121 return cstr_buf
.back().c_str();
124 const char *cstr_init(RTLIL::SigBit sig
)
128 if (init_bits
.count(sig
) == 0)
131 string str
= stringf(" %d", init_bits
.at(sig
));
133 cstr_buf
.push_back(str
);
134 return cstr_buf
.back().c_str();
137 const char *subckt_or_gate(std::string cell_type
)
139 if (!config
->gates_mode
)
141 if (!design
->modules_
.count(RTLIL::escape_id(cell_type
)))
143 if (design
->modules_
.at(RTLIL::escape_id(cell_type
))->get_bool_attribute("\\blackbox"))
148 void dump_params(const char *command
, dict
<IdString
, Const
> ¶ms
)
150 for (auto ¶m
: params
) {
151 f
<< stringf("%s %s ", command
, RTLIL::id2cstr(param
.first
));
152 if (param
.second
.flags
& RTLIL::CONST_FLAG_STRING
) {
153 std::string str
= param
.second
.decode_string();
156 if (ch
== '"' || ch
== '\\')
157 f
<< stringf("\\%c", ch
);
158 else if (ch
< 32 || ch
>= 127)
159 f
<< stringf("\\%03o", ch
);
161 f
<< stringf("%c", ch
);
162 f
<< stringf("\"\n");
164 f
<< stringf("%s\n", param
.second
.as_string().c_str());
171 f
<< stringf(".model %s\n", cstr(module
->name
));
173 std::map
<int, RTLIL::Wire
*> inputs
, outputs
;
175 for (auto &wire_it
: module
->wires_
) {
176 RTLIL::Wire
*wire
= wire_it
.second
;
177 if (wire
->port_input
)
178 inputs
[wire
->port_id
] = wire
;
179 if (wire
->port_output
)
180 outputs
[wire
->port_id
] = wire
;
183 f
<< stringf(".inputs");
184 for (auto &it
: inputs
) {
185 RTLIL::Wire
*wire
= it
.second
;
186 for (int i
= 0; i
< wire
->width
; i
++)
187 f
<< stringf(" %s", cstr(RTLIL::SigSpec(wire
, i
)));
191 f
<< stringf(".outputs");
192 for (auto &it
: outputs
) {
193 RTLIL::Wire
*wire
= it
.second
;
194 for (int i
= 0; i
< wire
->width
; i
++)
195 f
<< stringf(" %s", cstr(RTLIL::SigSpec(wire
, i
)));
199 if (module
->get_bool_attribute("\\blackbox")) {
200 f
<< stringf(".blackbox\n");
201 f
<< stringf(".end\n");
205 if (!config
->impltf_mode
) {
206 if (!config
->false_type
.empty()) {
207 if (config
->false_type
== "+")
208 f
<< stringf(".names %s\n", config
->false_out
.c_str());
209 else if (config
->false_type
!= "-")
210 f
<< stringf(".%s %s %s=$false\n", subckt_or_gate(config
->false_type
),
211 config
->false_type
.c_str(), config
->false_out
.c_str());
213 f
<< stringf(".names $false\n");
214 if (!config
->true_type
.empty()) {
215 if (config
->true_type
== "+")
216 f
<< stringf(".names %s\n1\n", config
->true_out
.c_str());
217 else if (config
->true_type
!= "-")
218 f
<< stringf(".%s %s %s=$true\n", subckt_or_gate(config
->true_type
),
219 config
->true_type
.c_str(), config
->true_out
.c_str());
221 f
<< stringf(".names $true\n1\n");
222 if (!config
->undef_type
.empty()) {
223 if (config
->undef_type
== "+")
224 f
<< stringf(".names %s\n", config
->undef_out
.c_str());
225 else if (config
->undef_type
!= "-")
226 f
<< stringf(".%s %s %s=$undef\n", subckt_or_gate(config
->undef_type
),
227 config
->undef_type
.c_str(), config
->undef_out
.c_str());
229 f
<< stringf(".names $undef\n");
232 for (auto &cell_it
: module
->cells_
)
234 RTLIL::Cell
*cell
= cell_it
.second
;
236 if (config
->unbuf_types
.count(cell
->type
)) {
237 auto portnames
= config
->unbuf_types
.at(cell
->type
);
238 f
<< stringf(".names %s %s\n1 1\n",
239 cstr(cell
->getPort(portnames
.first
)), cstr(cell
->getPort(portnames
.second
)));
243 if (!config
->icells_mode
&& cell
->type
== "$_NOT_") {
244 f
<< stringf(".names %s %s\n0 1\n",
245 cstr(cell
->getPort("\\A")), cstr(cell
->getPort("\\Y")));
249 if (!config
->icells_mode
&& cell
->type
== "$_AND_") {
250 f
<< stringf(".names %s %s %s\n11 1\n",
251 cstr(cell
->getPort("\\A")), cstr(cell
->getPort("\\B")), cstr(cell
->getPort("\\Y")));
255 if (!config
->icells_mode
&& cell
->type
== "$_OR_") {
256 f
<< stringf(".names %s %s %s\n1- 1\n-1 1\n",
257 cstr(cell
->getPort("\\A")), cstr(cell
->getPort("\\B")), cstr(cell
->getPort("\\Y")));
261 if (!config
->icells_mode
&& cell
->type
== "$_XOR_") {
262 f
<< stringf(".names %s %s %s\n10 1\n01 1\n",
263 cstr(cell
->getPort("\\A")), cstr(cell
->getPort("\\B")), cstr(cell
->getPort("\\Y")));
267 if (!config
->icells_mode
&& cell
->type
== "$_NAND_") {
268 f
<< stringf(".names %s %s %s\n0- 1\n-0 1\n",
269 cstr(cell
->getPort("\\A")), cstr(cell
->getPort("\\B")), cstr(cell
->getPort("\\Y")));
273 if (!config
->icells_mode
&& cell
->type
== "$_NOR_") {
274 f
<< stringf(".names %s %s %s\n00 1\n",
275 cstr(cell
->getPort("\\A")), cstr(cell
->getPort("\\B")), cstr(cell
->getPort("\\Y")));
279 if (!config
->icells_mode
&& cell
->type
== "$_XNOR_") {
280 f
<< stringf(".names %s %s %s\n11 1\n00 1\n",
281 cstr(cell
->getPort("\\A")), cstr(cell
->getPort("\\B")), cstr(cell
->getPort("\\Y")));
285 if (!config
->icells_mode
&& cell
->type
== "$_ANDNOT_") {
286 f
<< stringf(".names %s %s %s\n10 1\n",
287 cstr(cell
->getPort("\\A")), cstr(cell
->getPort("\\B")), cstr(cell
->getPort("\\Y")));
291 if (!config
->icells_mode
&& cell
->type
== "$_ORNOT_") {
292 f
<< stringf(".names %s %s %s\n1- 1\n-0 1\n",
293 cstr(cell
->getPort("\\A")), cstr(cell
->getPort("\\B")), cstr(cell
->getPort("\\Y")));
297 if (!config
->icells_mode
&& cell
->type
== "$_AOI3_") {
298 f
<< stringf(".names %s %s %s %s\n-00 1\n0-0 1\n",
299 cstr(cell
->getPort("\\A")), cstr(cell
->getPort("\\B")), cstr(cell
->getPort("\\C")), cstr(cell
->getPort("\\Y")));
303 if (!config
->icells_mode
&& cell
->type
== "$_OAI3_") {
304 f
<< stringf(".names %s %s %s %s\n00- 1\n--0 1\n",
305 cstr(cell
->getPort("\\A")), cstr(cell
->getPort("\\B")), cstr(cell
->getPort("\\C")), cstr(cell
->getPort("\\Y")));
309 if (!config
->icells_mode
&& cell
->type
== "$_AOI4_") {
310 f
<< stringf(".names %s %s %s %s %s\n-0-0 1\n-00- 1\n0--0 1\n0-0- 1\n",
311 cstr(cell
->getPort("\\A")), cstr(cell
->getPort("\\B")),
312 cstr(cell
->getPort("\\C")), cstr(cell
->getPort("\\D")), cstr(cell
->getPort("\\Y")));
316 if (!config
->icells_mode
&& cell
->type
== "$_OAI4_") {
317 f
<< stringf(".names %s %s %s %s %s\n00-- 1\n--00 1\n",
318 cstr(cell
->getPort("\\A")), cstr(cell
->getPort("\\B")),
319 cstr(cell
->getPort("\\C")), cstr(cell
->getPort("\\D")), cstr(cell
->getPort("\\Y")));
323 if (!config
->icells_mode
&& cell
->type
== "$_MUX_") {
324 f
<< stringf(".names %s %s %s %s\n1-0 1\n-11 1\n",
325 cstr(cell
->getPort("\\A")), cstr(cell
->getPort("\\B")),
326 cstr(cell
->getPort("\\S")), cstr(cell
->getPort("\\Y")));
330 if (!config
->icells_mode
&& cell
->type
== "$_FF_") {
331 f
<< stringf(".latch %s %s%s\n", cstr(cell
->getPort("\\D")), cstr(cell
->getPort("\\Q")),
332 cstr_init(cell
->getPort("\\Q")));
336 if (!config
->icells_mode
&& cell
->type
== "$_DFF_N_") {
337 f
<< stringf(".latch %s %s fe %s%s\n", cstr(cell
->getPort("\\D")), cstr(cell
->getPort("\\Q")),
338 cstr(cell
->getPort("\\C")), cstr_init(cell
->getPort("\\Q")));
342 if (!config
->icells_mode
&& cell
->type
== "$_DFF_P_") {
343 f
<< stringf(".latch %s %s re %s%s\n", cstr(cell
->getPort("\\D")), cstr(cell
->getPort("\\Q")),
344 cstr(cell
->getPort("\\C")), cstr_init(cell
->getPort("\\Q")));
348 if (!config
->icells_mode
&& cell
->type
== "$_DLATCH_N_") {
349 f
<< stringf(".latch %s %s al %s%s\n", cstr(cell
->getPort("\\D")), cstr(cell
->getPort("\\Q")),
350 cstr(cell
->getPort("\\E")), cstr_init(cell
->getPort("\\Q")));
354 if (!config
->icells_mode
&& cell
->type
== "$_DLATCH_P_") {
355 f
<< stringf(".latch %s %s ah %s%s\n", cstr(cell
->getPort("\\D")), cstr(cell
->getPort("\\Q")),
356 cstr(cell
->getPort("\\E")), cstr_init(cell
->getPort("\\Q")));
360 if (!config
->icells_mode
&& cell
->type
== "$lut") {
361 f
<< stringf(".names");
362 auto &inputs
= cell
->getPort("\\A");
363 auto width
= cell
->parameters
.at("\\WIDTH").as_int();
364 log_assert(inputs
.size() == width
);
365 for (int i
= width
-1; i
>= 0; i
--)
366 f
<< stringf(" %s", cstr(inputs
.extract(i
, 1)));
367 auto &output
= cell
->getPort("\\Y");
368 log_assert(output
.size() == 1);
369 f
<< stringf(" %s", cstr(output
));
371 RTLIL::SigSpec mask
= cell
->parameters
.at("\\LUT");
372 for (int i
= 0; i
< (1 << width
); i
++)
373 if (mask
[i
] == RTLIL::S1
) {
374 for (int j
= width
-1; j
>= 0; j
--) {
375 f
<< ((i
>>j
)&1 ? '1' : '0');
382 if (!config
->icells_mode
&& cell
->type
== "$sop") {
383 f
<< stringf(".names");
384 auto &inputs
= cell
->getPort("\\A");
385 auto width
= cell
->parameters
.at("\\WIDTH").as_int();
386 auto depth
= cell
->parameters
.at("\\DEPTH").as_int();
387 vector
<State
> table
= cell
->parameters
.at("\\TABLE").bits
;
388 while (GetSize(table
) < 2*width
*depth
)
389 table
.push_back(State::S0
);
390 log_assert(inputs
.size() == width
);
391 for (int i
= 0; i
< width
; i
++)
392 f
<< stringf(" %s", cstr(inputs
.extract(i
, 1)));
393 auto &output
= cell
->getPort("\\Y");
394 log_assert(output
.size() == 1);
395 f
<< stringf(" %s", cstr(output
));
397 for (int i
= 0; i
< depth
; i
++) {
398 for (int j
= 0; j
< width
; j
++) {
399 bool pat0
= table
.at(2*width
*i
+ 2*j
+ 0) == State::S1
;
400 bool pat1
= table
.at(2*width
*i
+ 2*j
+ 1) == State::S1
;
401 if (pat0
&& !pat1
) f
<< "0";
402 else if (!pat0
&& pat1
) f
<< "1";
410 f
<< stringf(".%s %s", subckt_or_gate(cell
->type
.str()), cstr(cell
->type
));
411 for (auto &conn
: cell
->connections())
412 for (int i
= 0; i
< conn
.second
.size(); i
++) {
413 if (conn
.second
.size() == 1)
414 f
<< stringf(" %s", cstr(conn
.first
));
416 f
<< stringf(" %s[%d]", cstr(conn
.first
), i
);
417 f
<< stringf("=%s", cstr(conn
.second
.extract(i
, 1)));
421 if (config
->cname_mode
)
422 f
<< stringf(".cname %s\n", cstr(cell
->name
));
423 if (config
->attr_mode
)
424 dump_params(".attr", cell
->attributes
);
425 if (config
->param_mode
)
426 dump_params(".param", cell
->parameters
);
430 if (config
->iname_mode
)
431 f
<< stringf(".cname %s\n", cstr(cell
->name
));
432 if (config
->iattr_mode
)
433 dump_params(".attr", cell
->attributes
);
437 for (auto &conn
: module
->connections())
438 for (int i
= 0; i
< conn
.first
.size(); i
++)
440 SigBit lhs_bit
= conn
.first
[i
];
441 SigBit rhs_bit
= conn
.second
[i
];
443 if (config
->noalias_mode
&& cstr_bits_seen
.count(lhs_bit
) == 0)
446 if (config
->conn_mode
)
447 f
<< stringf(".conn %s %s\n", cstr(rhs_bit
), cstr(lhs_bit
));
448 else if (!config
->buf_type
.empty())
449 f
<< stringf(".%s %s %s=%s %s=%s\n", subckt_or_gate(config
->buf_type
), config
->buf_type
.c_str(),
450 config
->buf_in
.c_str(), cstr(rhs_bit
), config
->buf_out
.c_str(), cstr(lhs_bit
));
452 f
<< stringf(".names %s %s\n1 1\n", cstr(rhs_bit
), cstr(lhs_bit
));
455 f
<< stringf(".end\n");
458 static void dump(std::ostream
&f
, RTLIL::Module
*module
, RTLIL::Design
*design
, BlifDumperConfig
&config
)
460 BlifDumper
dumper(f
, module
, design
, &config
);
465 struct BlifBackend
: public Backend
{
466 BlifBackend() : Backend("blif", "write design to BLIF file") { }
467 void help() YS_OVERRIDE
469 // |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
471 log(" write_blif [options] [filename]\n");
473 log("Write the current design to an BLIF file.\n");
475 log(" -top top_module\n");
476 log(" set the specified module as design top module\n");
478 log(" -buf <cell-type> <in-port> <out-port>\n");
479 log(" use cells of type <cell-type> with the specified port names for buffers\n");
481 log(" -unbuf <cell-type> <in-port> <out-port>\n");
482 log(" replace buffer cells with the specified name and port names with\n");
483 log(" a .names statement that models a buffer\n");
485 log(" -true <cell-type> <out-port>\n");
486 log(" -false <cell-type> <out-port>\n");
487 log(" -undef <cell-type> <out-port>\n");
488 log(" use the specified cell types to drive nets that are constant 1, 0, or\n");
489 log(" undefined. when '-' is used as <cell-type>, then <out-port> specifies\n");
490 log(" the wire name to be used for the constant signal and no cell driving\n");
491 log(" that wire is generated. when '+' is used as <cell-type>, then <out-port>\n");
492 log(" specifies the wire name to be used for the constant signal and a .names\n");
493 log(" statement is generated to drive the wire.\n");
496 log(" if a net name is aliasing another net name, then by default a net\n");
497 log(" without fanout is created that is driven by the other net. This option\n");
498 log(" suppresses the generation of this nets without fanout.\n");
500 log("The following options can be useful when the generated file is not going to be\n");
501 log("read by a BLIF parser but a custom tool. It is recommended to not name the output\n");
502 log("file *.blif when any of this options is used.\n");
505 log(" do not translate Yosys's internal gates to generic BLIF logic\n");
506 log(" functions. Instead create .subckt or .gate lines for all cells.\n");
509 log(" print .gate instead of .subckt lines for all cells that are not\n");
510 log(" instantiations of other modules from this design.\n");
513 log(" do not generate buffers for connected wires. instead use the\n");
514 log(" non-standard .conn statement.\n");
517 log(" use the non-standard .attr statement to write cell attributes\n");
520 log(" use the non-standard .param statement to write cell parameters\n");
523 log(" use the non-standard .cname statement to write cell names\n");
525 log(" -iname, -iattr\n");
526 log(" enable -cname and -attr functionality for .names statements\n");
527 log(" (the .cname and .attr statements will be included in the BLIF\n");
528 log(" output after the truth table for the .names statement)\n");
531 log(" write blackbox cells with .blackbox statement.\n");
534 log(" do not write definitions for the $true, $false and $undef wires.\n");
537 void execute(std::ostream
*&f
, std::string filename
, std::vector
<std::string
> args
, RTLIL::Design
*design
) YS_OVERRIDE
539 std::string top_module_name
;
540 std::string buf_type
, buf_in
, buf_out
;
541 std::string true_type
, true_out
;
542 std::string false_type
, false_out
;
543 BlifDumperConfig config
;
545 log_header(design
, "Executing BLIF backend.\n");
548 for (argidx
= 1; argidx
< args
.size(); argidx
++)
550 if (args
[argidx
] == "-top" && argidx
+1 < args
.size()) {
551 top_module_name
= args
[++argidx
];
554 if (args
[argidx
] == "-buf" && argidx
+3 < args
.size()) {
555 config
.buf_type
= args
[++argidx
];
556 config
.buf_in
= args
[++argidx
];
557 config
.buf_out
= args
[++argidx
];
560 if (args
[argidx
] == "-unbuf" && argidx
+3 < args
.size()) {
561 RTLIL::IdString unbuf_type
= RTLIL::escape_id(args
[++argidx
]);
562 RTLIL::IdString unbuf_in
= RTLIL::escape_id(args
[++argidx
]);
563 RTLIL::IdString unbuf_out
= RTLIL::escape_id(args
[++argidx
]);
564 config
.unbuf_types
[unbuf_type
] = std::pair
<RTLIL::IdString
, RTLIL::IdString
>(unbuf_in
, unbuf_out
);
567 if (args
[argidx
] == "-true" && argidx
+2 < args
.size()) {
568 config
.true_type
= args
[++argidx
];
569 config
.true_out
= args
[++argidx
];
572 if (args
[argidx
] == "-false" && argidx
+2 < args
.size()) {
573 config
.false_type
= args
[++argidx
];
574 config
.false_out
= args
[++argidx
];
577 if (args
[argidx
] == "-undef" && argidx
+2 < args
.size()) {
578 config
.undef_type
= args
[++argidx
];
579 config
.undef_out
= args
[++argidx
];
582 if (args
[argidx
] == "-icells") {
583 config
.icells_mode
= true;
586 if (args
[argidx
] == "-gates") {
587 config
.gates_mode
= true;
590 if (args
[argidx
] == "-conn") {
591 config
.conn_mode
= true;
594 if (args
[argidx
] == "-cname") {
595 config
.cname_mode
= true;
598 if (args
[argidx
] == "-param") {
599 config
.param_mode
= true;
602 if (args
[argidx
] == "-attr") {
603 config
.attr_mode
= true;
606 if (args
[argidx
] == "-iname") {
607 config
.iname_mode
= true;
610 if (args
[argidx
] == "-iattr") {
611 config
.iattr_mode
= true;
614 if (args
[argidx
] == "-blackbox") {
615 config
.blackbox_mode
= true;
618 if (args
[argidx
] == "-impltf") {
619 config
.impltf_mode
= true;
622 if (args
[argidx
] == "-noalias") {
623 config
.noalias_mode
= true;
628 extra_args(f
, filename
, args
, argidx
);
630 if (top_module_name
.empty())
631 for (auto & mod_it
:design
->modules_
)
632 if (mod_it
.second
->get_bool_attribute("\\top"))
633 top_module_name
= mod_it
.first
.str();
635 *f
<< stringf("# Generated by %s\n", yosys_version_str
);
637 std::vector
<RTLIL::Module
*> mod_list
;
640 for (auto module_it
: design
->modules_
)
642 RTLIL::Module
*module
= module_it
.second
;
643 if (module
->get_bool_attribute("\\blackbox") && !config
.blackbox_mode
)
646 if (module
->processes
.size() != 0)
647 log_error("Found unmapped processes in module %s: unmapped processes are not supported in BLIF backend!\n", RTLIL::id2cstr(module
->name
));
648 if (module
->memories
.size() != 0)
649 log_error("Found unmapped memories in module %s: unmapped memories are not supported in BLIF backend!\n", RTLIL::id2cstr(module
->name
));
651 if (module
->name
== RTLIL::escape_id(top_module_name
)) {
652 BlifDumper::dump(*f
, module
, design
, config
);
653 top_module_name
.clear();
657 mod_list
.push_back(module
);
660 if (!top_module_name
.empty())
661 log_error("Can't find top module `%s'!\n", top_module_name
.c_str());
663 for (auto module
: mod_list
)
664 BlifDumper::dump(*f
, module
, design
, config
);
668 PRIVATE_NAMESPACE_END