diff options
Diffstat (limited to 'ice40/arch.cc')
| -rw-r--r-- | ice40/arch.cc | 39 |
1 files changed, 17 insertions, 22 deletions
diff --git a/ice40/arch.cc b/ice40/arch.cc index 2867f591..eff1d9b9 100644 --- a/ice40/arch.cc +++ b/ice40/arch.cc @@ -834,28 +834,23 @@ std::vector<GraphicElement> Arch::getDecalGraphics(DecalId decal) const bool Arch::getCellDelay(const CellInfo *cell, IdString fromPort, IdString toPort, DelayInfo &delay) const { - if (cell->type == id_icestorm_lc) { - if ((fromPort == id_i0 || fromPort == id_i1 || fromPort == id_i2 || fromPort == id_i3) && - (toPort == id_o || toPort == id_lo)) { - delay.delay = 450; - return true; - } else if (fromPort == id_cin && toPort == id_cout) { - delay.delay = 120; - return true; - } else if (fromPort == id_i1 && toPort == id_cout) { - delay.delay = 260; - return true; - } else if (fromPort == id_i2 && toPort == id_cout) { - delay.delay = 230; - return true; - } else if (fromPort == id_clk && toPort == id_o) { - delay.delay = 540; - return true; - } - } else if (cell->type == id_icestorm_ram) { - if (fromPort == id_rclk) { - delay.delay = 2140; - return true; + BelType type = belTypeFromId(cell->type); + for (int i = 0; i < chip_info->num_timing_cells; i++) { + const auto &tc = chip_info->cell_timing[i]; + if (tc.type == type) { + PortPin fromPin = portPinFromId(fromPort); + PortPin toPin = portPinFromId(toPort); + for (int j = 0; j < tc.num_paths; j++) { + const auto &path = tc.path_delays[j]; + if (path.from_port == fromPin && path.to_port == toPin) { + if (fast_part) + delay.delay = path.fast_delay; + else + delay.delay = path.slow_delay; + return true; + } + } + break; } } return false; |