summaryrefslogtreecommitdiff
path: root/backends/smt2
diff options
context:
space:
mode:
authorClifford Wolf <clifford@clifford.at>2015-10-13 17:17:12 +0200
committerClifford Wolf <clifford@clifford.at>2015-10-13 17:17:12 +0200
commit3a22b31bdad32c7cecdbbe3f13fc282c794dfdbd (patch)
tree4d9357d6d3bbf9cbde80c3a96d4eff3f382cc3df /backends/smt2
parentf42218682d2c7caa6caa81cb2ca48f0c3f62bb5b (diff)
Added write_smt2 -wires
Diffstat (limited to 'backends/smt2')
-rw-r--r--backends/smt2/smt2.cc22
1 files changed, 15 insertions, 7 deletions
diff --git a/backends/smt2/smt2.cc b/backends/smt2/smt2.cc
index a544aa7d..a51a8270 100644
--- a/backends/smt2/smt2.cc
+++ b/backends/smt2/smt2.cc
@@ -32,7 +32,7 @@ struct Smt2Worker
CellTypes ct;
SigMap sigmap;
RTLIL::Module *module;
- bool bvmode, memmode, regsmode, verbose;
+ bool bvmode, memmode, regsmode, wiresmode, verbose;
int idcounter;
std::vector<std::string> decls, trans;
@@ -44,8 +44,9 @@ struct Smt2Worker
std::map<Cell*, int> memarrays;
std::map<int, int> bvsizes;
- Smt2Worker(RTLIL::Module *module, bool bvmode, bool memmode, bool regsmode, bool verbose) :
- ct(module->design), sigmap(module), module(module), bvmode(bvmode), memmode(memmode), regsmode(regsmode), verbose(verbose), idcounter(0)
+ Smt2Worker(RTLIL::Module *module, bool bvmode, bool memmode, bool regsmode, bool wiresmode, bool verbose) :
+ ct(module->design), sigmap(module), module(module), bvmode(bvmode), memmode(memmode),
+ regsmode(regsmode), wiresmode(wiresmode), verbose(verbose), idcounter(0)
{
decls.push_back(stringf("(declare-sort |%s_s| 0)\n", log_id(module)));
@@ -488,7 +489,7 @@ struct Smt2Worker
for (auto bit : SigSpec(wire))
if (reg_bits.count(bit))
is_register = true;
- if (wire->port_id || is_register || wire->get_bool_attribute("\\keep")) {
+ if (wire->port_id || is_register || wire->get_bool_attribute("\\keep") || (wiresmode && wire->name[0] == '\\')) {
RTLIL::SigSpec sig = sigmap(wire);
if (wire->port_input)
decls.push_back(stringf("; yosys-smt2-input %s %d\n", log_id(wire), wire->width));
@@ -496,7 +497,7 @@ struct Smt2Worker
decls.push_back(stringf("; yosys-smt2-output %s %d\n", log_id(wire), wire->width));
if (is_register)
decls.push_back(stringf("; yosys-smt2-register %s %d\n", log_id(wire), wire->width));
- if (wire->get_bool_attribute("\\keep"))
+ if (wire->get_bool_attribute("\\keep") || (wiresmode && wire->name[0] == '\\'))
decls.push_back(stringf("; yosys-smt2-wire %s %d\n", log_id(wire), wire->width));
if (bvmode && GetSize(sig) > 1) {
decls.push_back(stringf("(define-fun |%s_n %s| ((state |%s_s|)) (_ BitVec %d) %s)\n",
@@ -695,6 +696,9 @@ struct Smt2Backend : public Backend {
log(" -regs\n");
log(" also create '<mod>_n' functions for all registers.\n");
log("\n");
+ log(" -wires\n");
+ log(" also create '<mod>_n' functions for all public wires.\n");
+ log("\n");
log(" -tpl <template_file>\n");
log(" use the given template file. the line containing only the token '%%%%'\n");
log(" is replaced with the regular output of this command.\n");
@@ -751,7 +755,7 @@ struct Smt2Backend : public Backend {
virtual void execute(std::ostream *&f, std::string filename, std::vector<std::string> args, RTLIL::Design *design)
{
std::ifstream template_f;
- bool bvmode = false, memmode = false, regsmode = false, verbose = false;
+ bool bvmode = false, memmode = false, regsmode = false, wiresmode = false, verbose = false;
log_header("Executing SMT2 backend.\n");
@@ -777,6 +781,10 @@ struct Smt2Backend : public Backend {
regsmode = true;
continue;
}
+ if (args[argidx] == "-wires") {
+ wiresmode = true;
+ continue;
+ }
if (args[argidx] == "-verbose") {
verbose = true;
continue;
@@ -806,7 +814,7 @@ struct Smt2Backend : public Backend {
log("Creating SMT-LIBv2 representation of module %s.\n", log_id(module));
- Smt2Worker worker(module, bvmode, memmode, regsmode, verbose);
+ Smt2Worker worker(module, bvmode, memmode, regsmode, wiresmode, verbose);
worker.run();
worker.write(*f);
}