diff options
| author | David Shah <dave@ds0.me> | 2020-10-12 15:57:33 +0100 |
|---|---|---|
| committer | David Shah <dave@ds0.me> | 2020-11-30 08:45:27 +0000 |
| commit | af3af59df48f2752912d1c788ad56d83a73839ff (patch) | |
| tree | 703b5a057784b885e2e1ddca9706be2a94c7eba4 /nexus/fasm.cc | |
| parent | 10ad7d9cfec20e2c2417347e267c633e2f7e2623 (diff) | |
| download | nextpnr-af3af59df48f2752912d1c788ad56d83a73839ff.tar.gz nextpnr-af3af59df48f2752912d1c788ad56d83a73839ff.tar.bz2 nextpnr-af3af59df48f2752912d1c788ad56d83a73839ff.zip | |
nexus: Use tilegroups for IO bitgen
Signed-off-by: David Shah <dave@ds0.me>
Diffstat (limited to 'nexus/fasm.cc')
| -rw-r--r-- | nexus/fasm.cc | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/nexus/fasm.cc b/nexus/fasm.cc index e9a4572f..777947e0 100644 --- a/nexus/fasm.cc +++ b/nexus/fasm.cc @@ -139,6 +139,17 @@ struct NexusFasmWriter 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 push_belgroup(BelId bel) + { + int r = bel.tile / ctx->chip_info->width; + int c = bel.tile % ctx->chip_info->width; + auto bel_data = ctx->bel_data(bel); + r += bel_data.rel_y; + c += bel_data.rel_x; + std::string s = stringf("R%dC%d_%s", r, c, ctx->nameOf(ctx->bel_data(bel).name)); + push(s); + } + void write_pip(PipId pip) { auto &pd = ctx->pip_data(pip); @@ -203,7 +214,7 @@ struct NexusFasmWriter void write_io33(const CellInfo *cell) { BelId bel = cell->bel; - push_tile(bel.tile); + push_belgroup(bel); push_belname(bel); const NetInfo *t = get_net_or_empty(cell, id_T); auto tmux = ctx->get_cell_pinmux(cell, id_T); @@ -221,7 +232,7 @@ struct NexusFasmWriter void write_io18(const CellInfo *cell) { BelId bel = cell->bel; - push_tile(bel.tile); + push_belgroup(bel); push_belname(bel); push("SEIO18"); const NetInfo *t = get_net_or_empty(cell, id_T); |