diff options
Diffstat (limited to 'generic/viaduct/fabulous/fasm.cc')
| -rw-r--r-- | generic/viaduct/fabulous/fasm.cc | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/generic/viaduct/fabulous/fasm.cc b/generic/viaduct/fabulous/fasm.cc index 047ffcbd..4d09d537 100644 --- a/generic/viaduct/fabulous/fasm.cc +++ b/generic/viaduct/fabulous/fasm.cc @@ -34,8 +34,9 @@ NEXTPNR_NAMESPACE_BEGIN namespace { struct FabFasmWriter { - FabFasmWriter(const Context *ctx, const FabricConfig &cfg, const std::string &filename) - : ctx(ctx), cfg(cfg), out(filename) + FabFasmWriter(const Context *ctx, const FabricConfig &cfg, const std::vector<PseudoPipTags> &pip_tags, + const std::string &filename) + : ctx(ctx), cfg(cfg), pip_tags(pip_tags), out(filename) { if (!out) log_error("failed to open fasm file '%s' for writing\n", filename.c_str()); @@ -53,7 +54,19 @@ struct FabFasmWriter void write_pip(PipId pip) { auto &data = ctx->pip_info(pip); - if (data.type.in(id_global_clock, id_O2Q)) + if (pip.index < int(pip_tags.size()) && pip_tags.at(pip.index).type != PseudoPipTags::NONE) { + // pseudo PIP + const auto &tag = pip_tags.at(pip.index); + if (tag.type == PseudoPipTags::LUT_CONST) { + NPNR_ASSERT(ctx->checkBelAvail(tag.bel)); + prefix = format_name(ctx->getBelName(tag.bel)) + "."; + write_int_vector(stringf("INIT[%d:0]", (1U << cfg.clb.lut_k) - 1), 0, 1U << cfg.clb.lut_k, + (tag.data & 0x1)); + prefix = ""; + } + return; + } + if (data.type.in(id_global_clock, id_O2Q) || data.type.c_str(ctx)[0] == '$') return; // pseudo-pips with no underlying bitstream bits // write pip name but with '.' instead of '/' for separator out << format_name(data.name) << std::endl; @@ -194,13 +207,15 @@ struct FabFasmWriter const Context *ctx; const FabricConfig &cfg; + const std::vector<PseudoPipTags> &pip_tags; std::ofstream out; }; } // namespace -void fabulous_write_fasm(const Context *ctx, const FabricConfig &cfg, const std::string &filename) +void fabulous_write_fasm(const Context *ctx, const FabricConfig &cfg, const std::vector<PseudoPipTags> &pip_tags, + const std::string &filename) { - FabFasmWriter wr(ctx, cfg, filename); + FabFasmWriter wr(ctx, cfg, pip_tags, filename); wr.write_fasm(); } |