xref: /illumos-gate/usr/src/boot/forth/version.4th (revision dd72704bd9e794056c558153663c739e2012d721)
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
6\ modification, are permitted provided that the following conditions
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8\ 1. Redistributions of source code must retain the above copyright
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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