\ Copyright (c) 2014 M. Warner Losh <imp@FreeBSD.org>
\ All rights reserved.
\
\ Redistribution and use in source and binary forms, with or without
\ modification, are permitted provided that the following conditions
\ are met:
\ 1. Redistributions of source code must retain the above copyright
\    notice, this list of conditions and the following disclaimer.
\ 2. Redistributions in binary form must reproduce the above copyright
\    notice, this list of conditions and the following disclaimer in the
\    documentation and/or other materials provided with the distribution.
\
\ THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
\ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
\ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
\ ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
\ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
\ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
\ OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
\ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
\ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
\ OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
\ SUCH DAMAGE.
\
\ $FreeBSD: head/sys/boot/forth/pcibios.4th 280924 2015-03-31 22:32:35Z dteske $

only forth also support-functions also builtins definitions

\ pci-device-count pci-id
\
\ Counts the number of instances of pci-id in the system and reports
\ it to the user.
: pci-device-count
  0= if ( interpreted ) get_arguments then

  0= if ." Need an argument" cr abort then
  \ First argument is 0 when we're interprated.  See support.4th
  \ for get_arguments reading the rest of the line and parsing it
  \ stack: argN lenN ... arg1 len1 N
  hex ?number decimal 
  0= if ." Bad pci-id given (must be legal hex value)" cr abort then
  dup pcibios-device-count ." Found " . ." instances of " hex . decimal cr
;

also forth definitions also builtins

builtin: pci-device-count