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| author | Ahmed Irfan <ahmedirfan1983@gmail.com> | 2014-09-02 14:47:51 +0200 |
|---|---|---|
| committer | Ahmed Irfan <ahmedirfan1983@gmail.com> | 2014-09-02 14:47:51 +0200 |
| commit | 2446b6fbefc51a0f64e68c44cb44ac2d3b2d538a (patch) | |
| tree | 0a08f1ae10f18e86ac72d25a8aec662f1d7487fd /backends/btor | |
| parent | ac896c63e287aeeb7947602af0e5f8b115e0b833 (diff) | |
| download | yosys-2446b6fbefc51a0f64e68c44cb44ac2d3b2d538a.tar.gz yosys-2446b6fbefc51a0f64e68c44cb44ac2d3b2d538a.tar.bz2 yosys-2446b6fbefc51a0f64e68c44cb44ac2d3b2d538a.zip | |
added $pmux cell translation
Diffstat (limited to 'backends/btor')
| -rw-r--r-- | backends/btor/btor.cc | 40 |
1 files changed, 38 insertions, 2 deletions
diff --git a/backends/btor/btor.cc b/backends/btor/btor.cc index 03ef183a5..2eac675e0 100644 --- a/backends/btor/btor.cc +++ b/backends/btor/btor.cc @@ -638,7 +638,42 @@ struct BtorDumper fprintf(f, "%s\n", str.c_str()); line_ref[cell->name]=line_num; } - //registers + else if(cell->type == "$pmux") + { + log("writing pmux cell\n"); + int output_width = cell->parameters.at(RTLIL::IdString("\\WIDTH")).as_int(); + int select_width = cell->parameters.at(RTLIL::IdString("\\S_WIDTH")).as_int(); + int default_case = dump_sigspec(&cell->connections.at(RTLIL::IdString("\\A")), output_width); + int cases = dump_sigspec(&cell->connections.at(RTLIL::IdString("\\B")), output_width*select_width); + int select = dump_sigspec(&cell->connections.at(RTLIL::IdString("\\S")), select_width); + int *c = new int[select_width]; + + for (int i=0; i<select_width; ++i) + { + ++line_num; + str = stringf ("%d slice 1 %d %d %d", line_num, select, i, i); + fprintf(f, "%s\n", str.c_str()); + c[i] = line_num; + ++line_num; + str = stringf ("%d slice %d %d %d %d", line_num, output_width, cases, i*output_width+output_width-1, + i*output_width); + fprintf(f, "%s\n", str.c_str()); + } + + ++line_num; + str = stringf ("%d cond 1 %d %d %d", line_num, c[select_width-1], c[select_width-1]+1, default_case); + fprintf(f, "%s\n", str.c_str()); + + for (int i=select_width-2; i>=0; --i) + { + ++line_num; + str = stringf ("%d cond 1 %d %d %d", line_num, c[i], c[i]+1, line_num-1); + fprintf(f, "%s\n", str.c_str()); + } + + line_ref[cell->name]=line_num; + } + //registers else if(cell->type == "$dff" || cell->type == "$adff" || cell->type == "$dffsr") { //TODO: remodelling fo adff cells @@ -767,7 +802,8 @@ struct BtorDumper assert(output->width == output_width); int offset = cell->parameters.at(RTLIL::IdString("\\OFFSET")).as_int(); ++line_num; - str = stringf("%d %s %d %d %d %d", line_num, cell_type_translation.at(cell->type).c_str(), output_width, input_line, output_width+offset-1, offset); + str = stringf("%d %s %d %d %d %d", line_num, cell_type_translation.at(cell->type).c_str(), + output_width, input_line, output_width+offset-1, offset); fprintf(f, "%s\n", str.c_str()); line_ref[cell->name]=line_num; } |