diff options
Diffstat (limited to 'generic/viaduct/fabulous/fasm.cc')
| -rw-r--r-- | generic/viaduct/fabulous/fasm.cc | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/generic/viaduct/fabulous/fasm.cc b/generic/viaduct/fabulous/fasm.cc index 159bb8ff..f1c0c648 100644 --- a/generic/viaduct/fabulous/fasm.cc +++ b/generic/viaduct/fabulous/fasm.cc @@ -223,6 +223,23 @@ struct FabFasmWriter } } + void write_iopass(const CellInfo *ci) + { + Loc loc = ctx->getBelLocation(ci->bel); + // We use 'nice' names based on function for the IOPass bels inside nextpnr + // but in the bitstream we need to use character names + NPNR_ASSERT(loc.z <= 26); + prefix = stringf("X%dY%d.%c.", loc.x, loc.y, 'A' + loc.z); + if (ci->params.count(id_I_reg)) { + uint64_t regval = int_or_default(ci->params, id_I_reg); + for (unsigned i = 0; i < 4; i++) { + if (regval & (1 << i)) + out << prefix << stringf("I%d_reg", i) << std::endl; + } + } + prefix = ""; + } + void write_cell(const CellInfo *ci) { out << stringf("# config for cell '%s'\n", ctx->nameOf(ci)) << std::endl; @@ -231,6 +248,8 @@ struct FabFasmWriter write_logic(ci); else if (ci->type == id_IO_1_bidirectional_frame_config_pass) write_io(ci); + else if (ci->type.in(id_InPass4_frame_config, id_OutPass4_frame_config)) + write_iopass(ci); else write_generic_cell(ci); // TODO: other cell types |