freebsd-dev/sys/boot/forth/beastie.4th
Devin Teske 91771b69c4 Solve dreaded "dictionary full" issue by segregating words into new
vocabularies delay-processing, password-processing, version-processing,
frame-drawing, menu-infrastructure, menu-namespace, menu-command-helpers,
and menusets-infrastructure. The net effect is to remove almost 200
definitions from the main forth vocabulary reducing the dictionary size
by over 50%. The chances of hitting "dictionary full" should be greatly
reduced by this patch.

MFC after:	3 days
X-MFC-to:	stable/10
2015-04-01 01:54:28 +00:00

116 lines
3.5 KiB
Forth

\ Copyright (c) 2003 Scott Long <scottl@FreeBSD.org>
\ Copyright (c) 2003 Aleksander Fafula <alex@fafula.com>
\ Copyright (c) 2006-2015 Devin Teske <dteske@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.
\
\ $FreeBSD$
marker task-beastie.4th
only forth definitions
variable logoX
variable logoY
\ Initialize logo placement to defaults
46 logoX !
4 logoY !
\ This function draws any number of beastie logos at (loader_logo_x,
\ loader_logo_y) if defined, else (46,4) (to the right of the menu). To choose
\ your beastie, set the variable `loader_logo' to the respective logo name.
\
\ NOTE: Each is defined as a logo function in /boot/logo-${loader_logo}.4th
\ NOTE: If `/boot/logo-${loader_logo}.4th' does not exist or does not define
\ a `logo' function, no beastie is drawn.
\
: draw-beastie ( -- ) \ at (loader_logo_x,loader_logo_y), else (46,4)
s" loader_logo_x" getenv dup -1 <> if
?number 1 = if logoX ! then
else drop then
s" loader_logo_y" getenv dup -1 <> if
?number 1 = if logoY ! then
else drop then
\ If `logo' is defined, execute it
s" logo" sfind ( -- xt|0 bool ) if
logoX @ logoY @ rot execute
else
\ Not defined; try-include desired logo file
drop ( xt = 0 ) \ cruft
s" loader_logo" getenv dup -1 = over 0= or if
dup 0= if 2drop else drop then \ getenv result unused
loader_color? if
s" try-include /boot/logo-orb.4th"
else
s" try-include /boot/logo-orbbw.4th"
then
else
2drop ( c-addr/u -- ) \ getenv result unused
s" try-include /boot/logo-${loader_logo}.4th"
then
evaluate
1 spaces
\ Execute `logo' if defined now
s" logo" sfind if
logoX @ logoY @ rot execute
else drop then
then
;
also support-functions
: beastie-start ( -- ) \ starts the menu
s" console" getenv dup -1 <> if
s" efi" 2swap contains? if
s" set beastie_disable=YES" evaluate
then
else drop then
s" beastie_disable" getenv dup -1 <> if
s" YES" compare-insensitive 0= if
any_conf_read? if
load_xen_throw
load_kernel
load_modules
then
exit \ to autoboot (default)
then
else drop then
s" loader_delay" getenv -1 = if
s" include /boot/menu.rc" evaluate
else
drop
." Loading Menu (Ctrl-C to Abort)" cr
s" set delay_command='include /boot/menu.rc'" evaluate
s" set delay_showdots" evaluate
delay_execute
then
;
only forth definitions