Extra API

the bhdl/splicing language

The language bhdl/splicing is not BHDL syntax. It provides a simple "splicing syntax" for function application:

#lang reader bhdl/splicing

(list 1 2 (list 3 4) .. 5)

;; equivalent to

(list 1 2 3 4 5)

;; which evaluates to => '(1 2 3 4 5)

requiring pict library with prefix

Since bhdl re-exposes *-append and *-superimpose functions to be generic to bhdl components and circuits, if you want to import pict, you need to prefix it, e.g.:

(require (prefix-in pict: pict))

Auto Placement

We implemented an analytical global placer and a simulated annealing detailed placer. To use them, follow the above installation guide to setup the julia environment and run the server in the backend:

julia --project server.jl

You can then send the placement request to backend server via:

(define place-result

(send-for-placement

(Composite->place-spec whole

#:place-nsteps 50

#:place-nbins 300

#:sa-ncycles 10

#:sa-nsteps 3000

#:sa-stepsize 10

#:sa-theta-stepsize 0.3)))

You can visualize the placed Composite via:

(Composite->pict whole place-result)