/usr/src/boot/forth/brand.4th
Forth | 76 lines | 68 code | 8 blank | 0 comment | 10 complexity | 9d10dec1fd0fe1fe25460da8c0f671e7 MD5 | raw file
- \ 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.
- marker task-brand.4th
- variable brandX
- variable brandY
- \ Initialize brand placement to defaults
- 2 brandX !
- 1 brandY !
- \ This function draws any number of company brands at (loader_brand_x,
- \ loader_brand_y) if defined, or (2,1) (top-left). To choose your brand, set
- \ the variable `loader_brand' to the respective brand name.
- \
- \ NOTE: Each is defined as a brand function in /boot/brand-${loader_brand}.4th
- \ NOTE: If `/boot/brand-${loader_brand}.4th' does not exist or does not define
- \ a `brand' function, no brand is drawn.
- \
- : draw-brand ( -- ) \ at (loader_brand_x,loader_brand_y), else (2,1)
- s" loader_brand_x" getenv dup -1 <> if
- ?number 1 = if brandX ! then
- else drop then
- s" loader_brand_y" getenv dup -1 <> if
- ?number 1 = if brandY ! then
- else drop then
- \ If `brand' is defined, execute it
- s" brand" sfind ( -- xt|0 bool ) if
- brandX @ brandY @ rot execute
- else
- \ Not defined; try-include desired brand file
- drop ( xt = 0 ) \ cruft
- s" loader_brand" getenv dup -1 = over 0= or if
- dup 0= if 2drop else drop then \ getenv result unused
- s" try-include /boot/forth/brand-illumos.4th"
- else
- 2drop ( c-addr/u -- ) \ getenv result unused
- s" try-include /boot/forth/brand-${loader_brand}.4th"
- then
- evaluate
- 1 spaces
- \ Execute `brand' if defined now
- s" brand" sfind if
- brandX @ brandY @ rot execute
- else drop then
- then
- ;
- : draw-brand
- ['] draw-brand console-iterate
- ;