diff options
Diffstat (limited to 'mistral/bitstream.cc')
| -rw-r--r-- | mistral/bitstream.cc | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/mistral/bitstream.cc b/mistral/bitstream.cc index 2d64c337..3337c38e 100644 --- a/mistral/bitstream.cc +++ b/mistral/bitstream.cc @@ -196,6 +196,42 @@ struct MistralBitgen } } + void write_alm(uint32_t lab, uint8_t alm) + { + auto &alm_data = ctx->labs.at(lab).alms.at(alm); + + std::array<CellInfo *, 2> luts{ctx->getBoundBelCell(alm_data.lut_bels[0]), + ctx->getBoundBelCell(alm_data.lut_bels[1])}; + std::array<CellInfo *, 4> ffs{ + ctx->getBoundBelCell(alm_data.ff_bels[0]), ctx->getBoundBelCell(alm_data.ff_bels[1]), + ctx->getBoundBelCell(alm_data.ff_bels[2]), ctx->getBoundBelCell(alm_data.ff_bels[3])}; + // Skip empty ALMs + if (std::all_of(luts.begin(), luts.end(), [](CellInfo *c) { return !c; }) && + std::all_of(ffs.begin(), ffs.end(), [](CellInfo *c) { return !c; })) + return; + + auto pos = alm_data.lut_bels[0].pos; + // Combinational mode - TODO: flop feedback + cv->bmux_m_set(CycloneV::LAB, pos, CycloneV::MODE, alm, alm_data.l6_mode ? CycloneV::L6 : CycloneV::L5); + // LUT function + cv->bmux_r_set(CycloneV::LAB, pos, CycloneV::LUT_MASK, alm, ctx->compute_lut_mask(lab, alm)); + // DFF output - foce to LUT for now... + cv->bmux_m_set(CycloneV::LAB, pos, CycloneV::TDFF0, alm, CycloneV::NLUT); + cv->bmux_m_set(CycloneV::LAB, pos, CycloneV::TDFF1, alm, CycloneV::NLUT); + cv->bmux_m_set(CycloneV::LAB, pos, CycloneV::TDFF1L, alm, CycloneV::NLUT); + cv->bmux_m_set(CycloneV::LAB, pos, CycloneV::BDFF0, alm, CycloneV::NLUT); + cv->bmux_m_set(CycloneV::LAB, pos, CycloneV::BDFF1, alm, CycloneV::NLUT); + cv->bmux_m_set(CycloneV::LAB, pos, CycloneV::BDFF1L, alm, CycloneV::NLUT); + } + + void write_labs() + { + for (size_t lab = 0; lab < ctx->labs.size(); lab++) { + for (uint8_t alm = 0; alm < 10; alm++) + write_alm(lab, alm); + } + } + void run() { cv->clear(); @@ -203,6 +239,7 @@ struct MistralBitgen write_routing(); write_dqs(); write_cells(); + write_labs(); } }; } // namespace |