LUT depth: your longest yosys path, drawn as a staircase

Paste yosys ltp -noff output: the longest path after LUT mapping, one step per cell, typed when a dump is in the text. A cell count, not nanoseconds. Read in your browser.

A file you open here is read by your browser only: it is never uploaded. The page sets no cookie and sends nothing anywhere.

Where the numbers come from

Yosys 0.67+post (git sha1 b8e7da6f40ae8f552c116bf6c359b07c6533e159), run once by scripts/widget-data/lut-depth.mjs: nice -n 10 yosys -q -p "read_verilog fpga/openxc7-synth/gf16_add.v; synth_xilinx -flatten -top gf16_add; echo on; tee -q -o ltp.txt ltp -noff; tee -q -a ltp.txt ltp -noff t:FD* %n; tee -q -a ltp.txt dump t:*"
gHashTag/trinity fpga/openxc7-synth/gf16_add.v (sha256 in sample.json), copied to a scratch directory under the same relative path
public/widgets/lut-depth/sample.ltp.txt: the teed yosys output, byte for byte; sample.json: command, yosys -V line, exit code, warnings, seconds, sha256 of input and output, and the parsed path
public/widgets/lut-depth/ltpparse.js: the one parser, run in node for the sample and in the browser for your text; card.png is drawn from sample.json by scripts/widget-data/lut-depth-card.py
node scripts/widget-data/lut-depth.mjs --check: re-reads sample.ltp.txt and fails if any K_SAMPLE_ fact in this spec disagrees

This widget's .t27 source · All widgets