diff options
| -rw-r--r-- | nexus/constids.inc | 2 | ||||
| -rw-r--r-- | nexus/fasm.cc | 26 |
2 files changed, 28 insertions, 0 deletions
diff --git a/nexus/constids.inc b/nexus/constids.inc index 56c54aa0..8a7d688e 100644 --- a/nexus/constids.inc +++ b/nexus/constids.inc @@ -101,3 +101,5 @@ X(PLC) X(CIB) X(CIB_T) X(CIB_LR) + +X(IO_TYPE) diff --git a/nexus/fasm.cc b/nexus/fasm.cc index 2441df4a..25c13b2b 100644 --- a/nexus/fasm.cc +++ b/nexus/fasm.cc @@ -108,6 +108,12 @@ struct NexusFasmWriter log_error("No tile of type %s found at location R%dC%d", ctx->nameOf(type), loc / ctx->chip_info->width, loc % ctx->chip_info->width); } + const PhysicalTileInfoPOD &tile_at_loc(int loc) + { + auto &ploc = ctx->chip_info->grid[loc]; + NPNR_ASSERT(ploc.num_phys_tiles == 1); + return ploc.phys_tiles[0]; + } std::string escape_name(const std::string &name) { std::string escaped; @@ -120,6 +126,8 @@ struct NexusFasmWriter return escaped; } void push_tile(int loc, IdString tile_type) { push(tile_name(loc, tile_by_type_and_loc(loc, tile_type))); } + void push_tile(int loc) { push(tile_name(loc, tile_at_loc(loc))); } + void push_belname(BelId bel) { push(ctx->nameOf(ctx->bel_data(bel).name)); } void write_pip(PipId pip) { auto &pd = ctx->pip_data(pip); @@ -178,6 +186,22 @@ struct NexusFasmWriter write_enum(cell, "GSR"); pop(2); } + void write_io33(const CellInfo *cell) + { + BelId bel = cell->bel; + push_tile(bel.tile); + push_belname(bel); + const NetInfo *t = get_net_or_empty(cell, id_T); + bool is_input = false, is_output = false; + if (t == nullptr || t->name == ctx->id("$PACKER_VCC_NET")) { + is_input = true; + } else if (t->name == ctx->id("$PACKER_GND_NET")) { + is_output = true; + } + const char *iodir = is_input ? "INPUT" : (is_output ? "OUTPUT" : "BIDIR"); + write_bit(stringf("BASE_TYPE.%s_%s", iodir, str_or_default(cell->attrs, id_IO_TYPE, "LVCMOS33").c_str())); + pop(2); + } void operator()() { // Write routing @@ -192,6 +216,8 @@ struct NexusFasmWriter write_comb(ci); else if (ci->type == id_OXIDE_FF) write_ff(ci); + else if (ci->type == id_SEIO33_CORE) + write_io33(ci); blank(); } } |