Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Yosys+nextpnr: an Open Source Framework from Verilog to Bitstream for
  Commercial FPGAs   This paper introduces a fully free and open source software (FOSS)
architecture-neutral FPGA framework comprising of Yosys for Verilog synthesis,
and nextpnr for placement, routing, and bitstream generation. Currently, this
flow supports two commercially available FPGA families, Lattice iCE40 (up to 8K
logic elements) and Lattice ECP5 (up to 85K elements) and has been
hardware-proven for custom-computing machines including a low-power
neural-network accelerator and an OpenRISC system-on-chip capable of booting
Linux. Both Yosys and nextpnr have been engineered in a highly flexible manner
to support many of the features present in modern FPGAs by separating
architecture-specific details from the common mapping algorithms. This
framework is demonstrated on a longest-path case study to find an atypical
single source-sink path occupying up to 45% of all on-chip wiring.

28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
14
The categories of this paper are: math-ph
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
3
The categories of this paper are: physics
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga