From 0e0c80fac883a6f512a94aecdc3c915b8cacb562 Mon Sep 17 00:00:00 2001 From: Clifford Wolf Date: Mon, 22 Apr 2019 19:44:10 +0200 Subject: Add support for zero-width signals to Verilog back-end, fixes #948 Signed-off-by: Clifford Wolf --- backends/verilog/verilog_backend.cc | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'backends/verilog') diff --git a/backends/verilog/verilog_backend.cc b/backends/verilog/verilog_backend.cc index 855409d0b..9967482d6 100644 --- a/backends/verilog/verilog_backend.cc +++ b/backends/verilog/verilog_backend.cc @@ -187,6 +187,10 @@ void dump_const(std::ostream &f, const RTLIL::Const &data, int width = -1, int o { if (width < 0) width = data.bits.size() - offset; + if (width == 0) { + f << "\"\""; + return; + } if (nostr) goto dump_hex; if ((data.flags & RTLIL::CONST_FLAG_STRING) == 0 || width != (int)data.bits.size()) { @@ -340,6 +344,10 @@ void dump_sigchunk(std::ostream &f, const RTLIL::SigChunk &chunk, bool no_decima void dump_sigspec(std::ostream &f, const RTLIL::SigSpec &sig) { + if (GetSize(sig) == 0) { + f << "\"\""; + return; + } if (sig.is_chunk()) { dump_sigchunk(f, sig.as_chunk()); } else { -- cgit v1.2.3