xref: /illumos-gate/usr/src/boot/forth/version.4th (revision e3ae4b35c024af1196582063ecee3ab79367227d)
1\ Copyright (c) 2006-2015 Devin Teske <dteske@FreeBSD.org>
2\ Copyright 2019 OmniOS Community Edition (OmniOSce) Association.
3\ All rights reserved.
4\
5\ Redistribution and use in source and binary forms, with or without
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13\
14\ THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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25
26marker task-version.4th
27
28vocabulary version-processing
29only forth also version-processing definitions
30
31variable versionX
32variable versionY
33
34\ Default $loader_version value if not overridden or using tribute screen
35: str_loader_version ( -- C-ADDR/U|-1 ) -1 ;
36
37\ Initialize text placement to defaults
3880 versionX !	\ NOTE: this is the ending column (text is right-justified)
3924 versionY !
40
41only forth definitions also version-processing
42
43: print_version ( -- )
44
45	\ Get the text placement position (if set)
46	s" loader_version_x" getenv dup -1 <> if
47		?number drop versionX ! -1
48	then drop
49	s" loader_version_y" getenv dup -1 <> if
50		?number drop versionY ! -1
51	then drop
52
53	\ Default version if none was set
54	s" loader_version" getenv dup -1 = if
55		drop
56		\ Use above default if no logo is requested
57		s" loader_logo" getenv dup -1 = if
58			drop str_loader_version
59		else
60			\ For tributes, do nothing (defer to logo-*.4th)
61			2dup s" tribute" compare-insensitive 0= if
62				2drop
63				s" logo" sfind if
64					drop exit \ see logo-tribute.4th
65				else
66					drop str_loader_version
67				then
68			else 2dup s" tributebw" compare-insensitive 0= if
69				2drop
70				s" logo" sfind if
71					drop exit \ see logo-tributebw.4th
72				else
73					drop str_loader_version
74				then
75			else
76				2drop str_loader_version
77			then then
78		then
79	then dup -1 = if
80		drop exit \ default version (above) is disabled
81	then
82
83	\ Right justify the text
84	dup versionX @ swap - versionY @ at-xy
85
86	\ Print the version (optionally in cyan)
87	loader_color? dup ( c-addr/u -- c-addr/u bool bool )
88	if 6 fg then
89	-rot type
90	if me then
91
92	at-bl
93;
94
95only forth definitions
96