/usr/src/boot/sys/boot/forth/brand.4th

https://github.com/openzfs/openzfs · Forth · 74 lines · 67 code · 7 blank · 0 comment · 10 complexity · 53b20ca2ac9074cde884307599286cd2 MD5 · raw file

  1. \ Copyright (c) 2006-2015 Devin Teske <dteske@FreeBSD.org>
  2. \ All rights reserved.
  3. \
  4. \ Redistribution and use in source and binary forms, with or without
  5. \ modification, are permitted provided that the following conditions
  6. \ are met:
  7. \ 1. Redistributions of source code must retain the above copyright
  8. \ notice, this list of conditions and the following disclaimer.
  9. \ 2. Redistributions in binary form must reproduce the above copyright
  10. \ notice, this list of conditions and the following disclaimer in the
  11. \ documentation and/or other materials provided with the distribution.
  12. \
  13. \ THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  14. \ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15. \ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  16. \ ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  17. \ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  18. \ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  19. \ OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  20. \ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  21. \ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  22. \ OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  23. \ SUCH DAMAGE.
  24. \
  25. \ $FreeBSD$
  26. marker task-brand.4th
  27. variable brandX
  28. variable brandY
  29. \ Initialize brand placement to defaults
  30. 2 brandX !
  31. 1 brandY !
  32. \ This function draws any number of company brands at (loader_brand_x,
  33. \ loader_brand_y) if defined, or (2,1) (top-left). To choose your brand, set
  34. \ the variable `loader_brand' to the respective brand name.
  35. \
  36. \ NOTE: Each is defined as a brand function in /boot/brand-${loader_brand}.4th
  37. \ NOTE: If `/boot/brand-${loader_brand}.4th' does not exist or does not define
  38. \ a `brand' function, no brand is drawn.
  39. \
  40. : draw-brand ( -- ) \ at (loader_brand_x,loader_brand_y), else (2,1)
  41. s" loader_brand_x" getenv dup -1 <> if
  42. ?number 1 = if brandX ! then
  43. else drop then
  44. s" loader_brand_y" getenv dup -1 <> if
  45. ?number 1 = if brandY ! then
  46. else drop then
  47. \ If `brand' is defined, execute it
  48. s" brand" sfind ( -- xt|0 bool ) if
  49. brandX @ brandY @ rot execute
  50. else
  51. \ Not defined; try-include desired brand file
  52. drop ( xt = 0 ) \ cruft
  53. s" loader_brand" getenv dup -1 = over 0= or if
  54. dup 0= if 2drop else drop then \ getenv result unused
  55. s" try-include /boot/forth/brand-illumos.4th"
  56. else
  57. 2drop ( c-addr/u -- ) \ getenv result unused
  58. s" try-include /boot/forth/brand-${loader_brand}.4th"
  59. then
  60. evaluate
  61. 1 spaces
  62. \ Execute `brand' if defined now
  63. s" brand" sfind if
  64. brandX @ brandY @ rot execute
  65. else drop then
  66. then
  67. ;