xref: /illumos-gate/usr/src/boot/forth/menusets.4th (revision ddb365bfc9e868ad24ccdcb0dc91af18b10df082)
1\ Copyright (c) 2012 Devin Teske <dteske@FreeBSD.org>
2\ Copyright 2020 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
9\    notice, this list of conditions and the following disclaimer.
10\ 2. Redistributions in binary form must reproduce the above copyright
11\    notice, this list of conditions and the following disclaimer in the
12\    documentation and/or other materials provided with the distribution.
13\
14\ THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15\ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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17\ ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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19\ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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25\
26
27marker task-menusets.4th
28
29vocabulary menusets-infrastructure
30only forth also menusets-infrastructure definitions
31
32variable menuset_use_name
33
34create menuset_affixbuf	255 allot
35create menuset_x        1   allot
36create menuset_y        1   allot
37
38: menuset-loadvar ( -- )
39
40	\ menuset_use_name is true or false
41	\ $type should be set to one of:
42	\	menu toggled ansi
43	\ $var should be set to one of:
44	\	caption command keycode text ...
45	\ $affix is either prefix (menuset_use_name is true)
46	\               or infix (menuset_use_name is false)
47
48	s" set cmdbuf='set ${type}_${var}=\$'" evaluate
49	s" cmdbuf" getenv swap drop ( -- u1 ) \ get string length
50	menuset_use_name @ true = if
51		s" set cmdbuf=${cmdbuf}${affix}${type}_${var}"
52		( u1 -- u1 c-addr2 u2 )
53	else
54		s" set cmdbuf=${cmdbuf}${type}set${affix}_${var}"
55		( u1 -- u1 c-addr2 u2 )
56	then
57	evaluate ( u1 c-addr2 u2 -- u1 )
58	s" cmdbuf" getenv ( u1 -- u1 c-addr2 u2 )
59	rot 2 pick 2 pick over + -rot + tuck -
60		( u1 c-addr2 u2 -- c-addr2 u2 c-addr1 u1 )
61		\ Generate a string representing rvalue inheritance var
62	getenv dup -1 = if
63		( c-addr2 u2 c-addr1 u1 -- c-addr2 u2 -1 )
64		\ NOT set -- clean up the stack
65		drop ( c-addr2 u2 -1 -- c-addr2 u2 )
66		2drop ( c-addr2 u2 -- )
67	else
68		( c-addr2 u2 c-addr1 u1 -- c-addr2 u2 c-addr1 u1 )
69		\ SET -- execute cmdbuf (c-addr2/u2) to inherit value
70		2drop ( c-addr2 u2 c-addr1 u1 -- c-addr2 u2 )
71		evaluate ( c-addr2 u2 -- )
72	then
73
74	s" cmdbuf" unsetenv
75;
76
77: menuset-unloadvar ( -- )
78
79	\ menuset_use_name is true or false
80	\ $type should be set to one of:
81	\	menu toggled ansi
82	\ $var should be set to one of:
83	\	caption command keycode text ...
84	\ $affix is either prefix (menuset_use_name is true)
85	\               or infix (menuset_use_name is false)
86
87	menuset_use_name @ true = if
88		s" set buf=${affix}${type}_${var}"
89	else
90		s" set buf=${type}set${affix}_${var}"
91	then
92	evaluate
93	s" buf" getenv unsetenv
94	s" buf" unsetenv
95;
96
97: menuset-loadmenuvar ( -- )
98	s" set type=menu" evaluate
99	menuset-loadvar
100;
101
102: menuset-unloadmenuvar ( -- )
103	s" set type=menu" evaluate
104	menuset-unloadvar
105;
106
107: menuset-loadxvar ( -- )
108
109	\ menuset_use_name is true or false
110	\ $type should be set to one of:
111	\	menu toggled ansi
112	\ $var should be set to one of:
113	\	caption command keycode text ...
114	\ $x is "1" through "8"
115	\ $affix is either prefix (menuset_use_name is true)
116	\               or infix (menuset_use_name is false)
117
118	s" set cmdbuf='set ${type}_${var}[${x}]=\$'" evaluate
119	s" cmdbuf" getenv swap drop ( -- u1 ) \ get string length
120	menuset_use_name @ true = if
121		s" set cmdbuf=${cmdbuf}${affix}${type}_${var}[${x}]"
122		( u1 -- u1 c-addr2 u2 )
123	else
124		s" set cmdbuf=${cmdbuf}${type}set${affix}_${var}[${x}]"
125		( u1 -- u1 c-addr2 u2 )
126	then
127	evaluate ( u1 c-addr2 u2 -- u1 )
128	s" cmdbuf" getenv ( u1 -- u1 c-addr2 u2 )
129	rot 2 pick 2 pick over + -rot + tuck -
130		( u1 c-addr2 u2 -- c-addr2 u2 c-addr1 u1 )
131		\ Generate a string representing rvalue inheritance var
132	getenv dup -1 = if
133		( c-addr2 u2 c-addr1 u1 -- c-addr2 u2 -1 )
134		\ NOT set -- clean up the stack
135		drop ( c-addr2 u2 -1 -- c-addr2 u2 )
136		2drop ( c-addr2 u2 -- )
137	else
138		( c-addr2 u2 c-addr1 u1 -- c-addr2 u2 c-addr1 u1 )
139		\ SET -- execute cmdbuf (c-addr2/u2) to inherit value
140		2drop ( c-addr2 u2 c-addr1 u1 -- c-addr2 u2 )
141		evaluate ( c-addr2 u2 -- )
142	then
143
144	s" cmdbuf" unsetenv
145;
146
147: menuset-unloadxvar ( -- )
148
149	\ menuset_use_name is true or false
150	\ $type should be set to one of:
151	\	menu toggled ansi
152	\ $var should be set to one of:
153	\	caption command keycode text ...
154	\ $x is "1" through "8"
155	\ $affix is either prefix (menuset_use_name is true)
156	\               or infix (menuset_use_name is false)
157
158	menuset_use_name @ true = if
159		s" set buf=${affix}${type}_${var}[${x}]"
160	else
161		s" set buf=${type}set${affix}_${var}[${x}]"
162	then
163	evaluate
164	s" buf" getenv unsetenv
165	s" buf" unsetenv
166;
167
168: menuset-loadansixvar ( -- )
169	s" set type=ansi" evaluate
170	menuset-loadxvar
171;
172
173: menuset-unloadansixvar ( -- )
174	s" set type=ansi" evaluate
175	menuset-unloadxvar
176;
177
178: menuset-loadmenuxvar ( -- )
179	s" set type=menu" evaluate
180	menuset-loadxvar
181;
182
183: menuset-unloadmenuxvar ( -- )
184	s" set type=menu" evaluate
185	menuset-unloadxvar
186;
187
188: menuset-unloadtypelessxvar ( -- )
189	s" set type=" evaluate
190	menuset-unloadxvar
191;
192
193: menuset-loadtoggledxvar ( -- )
194	s" set type=toggled" evaluate
195	menuset-loadxvar
196;
197
198: menuset-unloadtoggledxvar ( -- )
199	s" set type=toggled" evaluate
200	menuset-unloadxvar
201;
202
203: menuset-loadxyvar ( -- )
204
205	\ menuset_use_name is true or false
206	\ $type should be set to one of:
207	\	menu toggled ansi
208	\ $var should be set to one of:
209	\	caption command keycode text ...
210	\ $x is "1" through "8"
211	\ $y is "0" through "9"
212	\ $affix is either prefix (menuset_use_name is true)
213	\               or infix (menuset_use_name is false)
214
215	s" set cmdbuf='set ${type}_${var}[${x}][${y}]=\$'" evaluate
216	s" cmdbuf" getenv swap drop ( -- u1 ) \ get string length
217	menuset_use_name @ true = if
218		s" set cmdbuf=${cmdbuf}${affix}${type}_${var}[${x}][${y}]"
219		( u1 -- u1 c-addr2 u2 )
220	else
221		s" set cmdbuf=${cmdbuf}${type}set${affix}_${var}[${x}][${y}]"
222		( u1 -- u1 c-addr2 u2 )
223	then
224	evaluate ( u1 c-addr2 u2 -- u1 )
225	s" cmdbuf" getenv ( u1 -- u1 c-addr2 u2 )
226	rot 2 pick 2 pick over + -rot + tuck -
227		( u1 c-addr2 u2 -- c-addr2 u2 c-addr1 u1 )
228		\ Generate a string representing rvalue inheritance var
229	getenv dup -1 = if
230		( c-addr2 u2 c-addr1 u1 -- c-addr2 u2 -1 )
231		\ NOT set -- clean up the stack
232		drop ( c-addr2 u2 -1 -- c-addr2 u2 )
233		2drop ( c-addr2 u2 -- )
234	else
235		( c-addr2 u2 c-addr1 u1 -- c-addr2 u2 c-addr1 u1 )
236		\ SET -- execute cmdbuf (c-addr2/u2) to inherit value
237		2drop ( c-addr2 u2 c-addr1 u1 -- c-addr2 u2 )
238		evaluate ( c-addr2 u2 -- )
239	then
240
241	s" cmdbuf" unsetenv
242;
243
244: menuset-unloadxyvar ( -- )
245
246	\ menuset_use_name is true or false
247	\ $type should be set to one of:
248	\	menu toggled ansi
249	\ $var should be set to one of:
250	\	caption command keycode text ...
251	\ $x is "1" through "8"
252	\ $y is "0" through "9"
253	\ $affix is either prefix (menuset_use_name is true)
254	\               or infix (menuset_use_name is false)
255
256	menuset_use_name @ true = if
257		s" set buf=${affix}${type}_${var}[${x}][${y}]"
258	else
259		s" set buf=${type}set${affix}_${var}[${x}][${y}]"
260	then
261	evaluate
262	s" buf" getenv unsetenv
263	s" buf" unsetenv
264;
265
266: menuset-loadansixyvar ( -- )
267	s" set type=ansi" evaluate
268	menuset-loadxyvar
269;
270
271: menuset-unloadansixyvar ( -- )
272	s" set type=ansi" evaluate
273	menuset-unloadxyvar
274;
275
276: menuset-loadmenuxyvar ( -- )
277	s" set type=menu" evaluate
278	menuset-loadxyvar
279;
280
281: menuset-unloadmenuxyvar ( -- )
282	s" set type=menu" evaluate
283	menuset-unloadxyvar
284;
285
286: menuset-setnum-namevar ( N -- C-Addr/U )
287
288	s" menuset_nameNNNNN" ( n -- n c-addr1 u1 )	\ variable basename
289	drop 12 ( n c-addr1 u1 -- n c-addr1 12 )	\ remove "NNNNN"
290	rot     ( n c-addr1 12 -- c-addr1 12 n )	\ move number on top
291
292	\ convert to string
293	n2s	( c-addr1 12 n -- c-addr1 12 c-addr2 u2 )
294
295	\ Combine strings
296	begin ( using u2 in c-addr2/u2 pair as countdown to zero )
297		over	( c-addr1 u1 c-addr2 u2 -- continued below )
298			( c-addr1 u1 c-addr2 u2 c-addr2 ) \ copy src-addr
299		c@	( c-addr1 u1 c-addr2 u2 c-addr2 -- continued below )
300			( c-addr1 u1 c-addr2 u2 c ) \ get next src-addr byte
301		4 pick 4 pick
302			( c-addr1 u1 c-addr2 u2 c -- continued below )
303			( c-addr1 u1 c-addr2 u2 c c-addr1 u1 )
304			\ get destination c-addr1/u1 pair
305		+	( c-addr1 u1 c-addr2 u2 c c-addr1 u1 -- cont. below )
306			( c-addr1 u1 c-addr2 u2 c c-addr3 )
307			\ combine dest-c-addr to get dest-addr for byte
308		c!	( c-addr1 u1 c-addr2 u2 c c-addr3 -- continued below )
309			( c-addr1 u1 c-addr2 u2 )
310			\ store the current src-addr byte into dest-addr
311
312		2swap 1+ 2swap	\ increment u1 in destination c-addr1/u1 pair
313		swap 1+ swap	\ increment c-addr2 in source c-addr2/u2 pair
314		1-		\ decrement u2 in the source c-addr2/u2 pair
315
316		dup 0= \ time to break?
317	until
318
319	2drop	( c-addr1 u1 c-addr2 u2 -- c-addr1 u1 )
320		\ drop temporary number-format conversion c-addr2/u2
321;
322
323: menuset-checksetnum ( N -- )
324
325	\
326	\ adjust input to be both positive and no-higher than 65535
327	\
328	abs dup 65535 > if drop 65535 then ( n -- n )
329
330	\
331	\ The next few blocks will determine if we should use the default
332	\ methodology (referencing the original numeric stack-input), or if-
333	\ instead $menuset_name{N} has been defined wherein we would then
334	\ use the value thereof as the prefix to every menu variable.
335	\
336
337	false menuset_use_name ! \ assume name is not set
338
339	menuset-setnum-namevar
340	\
341	\ We now have a string that is the assembled variable name to check
342	\ for... $menuset_name{N}. Let's check for it.
343	\
344	2dup ( c-addr1 u1 -- c-addr1 u1 c-addr1 u1 ) \ save a copy
345	getenv dup -1 <> if ( c-addr1 u1 c-addr1 u1 -- c-addr1 u1 c-addr2 u2 )
346		\ The variable is set. Let's clean up the stack leaving only
347		\ its value for later use.
348
349		true menuset_use_name !
350		2swap 2drop	( c-addr1 u1 c-addr2 u2 -- c-addr2 u2 )
351				\ drop assembled variable name, leave the value
352	else ( c-addr1 u1 c-addr1 u1 -- c-addr1 u1 -1 ) \ no such variable
353		\ The variable is not set. Let's clean up the stack leaving the
354		\ string [portion] representing the original numeric input.
355
356		drop ( c-addr1 u1 -1 -- c-addr1 u1 ) \ drop -1 result
357		12 - swap 12 + swap ( c-addr1 u1 -- c-addr2 u2 )
358			\ truncate to original numeric stack-input
359	then
360
361	\
362	\ Now, depending on whether $menuset_name{N} has been set, we have
363	\ either the value thereof to be used as a prefix to all menu_*
364	\ variables or we have a string representing the numeric stack-input
365	\ to be used as a "set{N}" infix to the same menu_* variables.
366	\
367	\ For example, if the stack-input is 1 and menuset_name1 is NOT set
368	\ the following variables will be referenced:
369	\	ansiset1_caption[x]		-> ansi_caption[x]
370	\	ansiset1_caption[x][y]		-> ansi_caption[x][y]
371	\	menuset1_acpi			-> menu_acpi
372	\	menuset1_osconsole		-> menu_osconsole
373	\	menuset1_caption[x]		-> menu_caption[x]
374	\	menuset1_caption[x][y]		-> menu_caption[x][y]
375	\	menuset1_command[x]		-> menu_command[x]
376	\	menuset1_init			-> ``evaluated''
377	\	menuset1_init[x]		-> menu_init[x]
378	\	menuset1_kernel			-> menu_kernel
379	\	menuset1_keycode[x]		-> menu_keycode[x]
380	\	menuset1_options		-> menu_options
381	\	menuset1_optionstext		-> menu_optionstext
382	\	menuset1_reboot			-> menu_reboot
383	\	toggledset1_ansi[x]		-> toggled_ansi[x]
384	\	toggledset1_text[x]		-> toggled_text[x]
385	\ otherwise, the following variables are referenced (where {name}
386	\ represents the value of $menuset_name1 (given 1 as stack-input):
387	\	{name}ansi_caption[x]		-> ansi_caption[x]
388	\	{name}ansi_caption[x][y]	-> ansi_caption[x][y]
389	\	{name}menu_acpi			-> menu_acpi
390	\	{name}menu_caption[x]		-> menu_caption[x]
391	\	{name}menu_caption[x][y]	-> menu_caption[x][y]
392	\	{name}menu_command[x]		-> menu_command[x]
393	\	{name}menu_init			-> ``evaluated''
394	\	{name}menu_init[x]		-> menu_init[x]
395	\	{name}menu_kernel		-> menu_kernel
396	\	{name}menu_keycode[x]		-> menu_keycode[x]
397	\	{name}menu_options		-> menu_options
398	\	{name}menu_optionstext		-> menu_optionstext
399	\	{name}menu_reboot		-> menu_reboot
400	\	{name}toggled_ansi[x]		-> toggled_ansi[x]
401	\	{name}toggled_text[x]		-> toggled_text[x]
402	\
403	\ Note that menuset{N}_init and {name}menu_init are the initializers
404	\ for the entire menu (for wholly dynamic menus) opposed to the per-
405	\ menuitem initializers (with [x] afterward). The whole-menu init
406	\ routine is evaluated and not passed down to $menu_init (which
407	\ would result in double evaluation). By doing this, the initializer
408	\ can initialize the menuset before we transfer it to active-duty.
409	\
410
411	\
412	\ Copy our affixation (prefix or infix depending on menuset_use_name)
413	\ to our buffer so that we can safely use the s-quote (s") buf again.
414	\
415	menuset_affixbuf 0 2swap ( c-addr2 u2 -- c-addr1 0 c-addr2 u2 )
416	begin ( using u2 in c-addr2/u2 pair as countdown to zero )
417		over ( c-addr1 u1 c-addr2 u2 -- c-addr1 u1 c-addr2 u2 c-addr2 )
418		c@   ( c-addr1 u1 c-addr2 u2 -- c-addr1 u1 c-addr2 u2 c )
419		4 pick 4 pick
420		     ( c-addr1 u1 c-addr2 u2 c -- continued below )
421		     ( c-addr1 u1 c-addr2 u2 c c-addr1 u1 )
422		+    ( c-addr1 u1 c-addr2 u2 c c-addr1 u1 -- continued below )
423		     ( c-addr1 u1 c-addr2 u2 c c-addr3 )
424		c!   ( c-addr1 u1 c-addr2 u2 c c-addr3 -- continued below )
425		     ( c-addr1 u1 c-addr2 u2 )
426		2swap 1+ 2swap	\ increment affixbuf byte position/count
427		swap 1+ swap	\ increment strbuf pointer (source c-addr2)
428		1-		\ decrement strbuf byte count (source u2)
429		dup 0=          \ time to break?
430	until
431	2drop ( c-addr1 u1 c-addr2 u2 -- c-addr1 u1 ) \ drop strbuf c-addr2/u2
432
433	\
434	\ Create a variable for referencing our affix data (prefix or infix
435	\ depending on menuset_use_name as described above). This variable will
436	\ be temporary and only used to simplify cmdbuf assembly.
437	\
438	s" affix" setenv ( c-addr1 u1 -- )
439;
440
441: menuset-cleanup ( -- )
442	s" type"  unsetenv
443	s" var"   unsetenv
444	s" x"     unsetenv
445	s" y"     unsetenv
446	s" affix" unsetenv
447;
448
449only forth definitions also menusets-infrastructure
450
451: menuset-loadsetnum ( N -- )
452
453	menuset-checksetnum ( n -- )
454
455	\
456	\ From here out, we use temporary environment variables to make
457	\ dealing with variable-length strings easier.
458	\
459	\ menuset_use_name is true or false
460	\ $affix should be used appropriately w/respect to menuset_use_name
461	\
462
463	\ ... menu_init ...
464	s" set var=init" evaluate
465	menuset-loadmenuvar
466
467	\ If menu_init was set by the above, evaluate it here-and-now
468	\ so that the remaining variables are influenced by its actions
469	s" menu_init" 2dup getenv dup -1 <> if
470		2swap unsetenv \ don't want later menu-create to re-call this
471		evaluate
472	else
473		drop 2drop ( n c-addr u -1 -- n )
474	then
475
476	[char] 1 ( -- x ) \ Loop range ASCII '1' (49) to '8' (56)
477	begin
478		dup menuset_x tuck c! 1 s" x" setenv \ set loop iterator and $x
479
480		s" set var=caption" evaluate
481
482		\ ... menu_caption[x] ...
483		menuset-loadmenuxvar
484
485		\ ... ansi_caption[x] ...
486		menuset-loadansixvar
487
488		[char] 0 ( x -- x y ) \ Inner Loop ASCII '1' (48) to '9' (57)
489		begin
490			dup menuset_y tuck c! 1 s" y" setenv
491				\ set inner loop iterator and $y
492
493			\ ... menu_caption[x][y] ...
494			menuset-loadmenuxyvar
495
496			\ ... ansi_caption[x][y] ...
497			menuset-loadansixyvar
498
499			1+ dup 57 > ( x y -- y' 0|-1 ) \ increment and test
500		until
501		drop ( x y -- x )
502
503		\ ... menu_command[x] ...
504		s" set var=command" evaluate
505		menuset-loadmenuxvar
506
507		\ ... menu_init[x] ...
508		s" set var=init" evaluate
509		menuset-loadmenuxvar
510
511		\ ... menu_keycode[x] ...
512		s" set var=keycode" evaluate
513		menuset-loadmenuxvar
514
515		\ ... toggled_text[x] ...
516		s" set var=text" evaluate
517		menuset-loadtoggledxvar
518
519		\ ... toggled_ansi[x] ...
520		s" set var=ansi" evaluate
521		menuset-loadtoggledxvar
522
523		1+ dup 56 > ( x -- x' 0|-1 ) \ increment iterator
524		                             \ continue if less than 57
525	until
526	drop ( x -- ) \ loop iterator
527
528	\ ... menu_reboot ...
529	s" set var=reboot" evaluate
530	menuset-loadmenuvar
531
532	\ ... menu_acpi ...
533	s" set var=acpi" evaluate
534	menuset-loadmenuvar
535
536	\ ... menu_osconsole ...
537	s" set var=osconsole" evaluate
538	menuset-loadmenuvar
539
540	\ ... menu_kmdb ...
541	s" set var=kmdb" evaluate
542	menuset-loadmenuvar
543
544	\ ... menu_options ...
545	s" set var=options" evaluate
546	menuset-loadmenuvar
547
548	\ ... menu_optionstext ...
549	s" set var=optionstext" evaluate
550	menuset-loadmenuvar
551
552	menuset-cleanup
553;
554
555: menusets-unset ( -- )
556
557	\ clean up BE menu internal variables
558	s" beansi_bootfs"    unsetenv
559	s" beansi_current"   unsetenv
560	s" beansi_page"      unsetenv
561	s" beansi_pageof"    unsetenv
562	s" bemenu_bootfs"    unsetenv
563	s" bemenu_current"   unsetenv
564	s" bemenu_page"      unsetenv
565	s" bemenu_pageof"    unsetenv
566	s" zfs_be_active"    unsetenv
567	s" zfs_be_currpage"  unsetenv
568	s" zfs_be_pages"     unsetenv
569
570	s" menuset_initial"  unsetenv
571
572	1 begin
573		dup menuset-checksetnum ( n n -- n )
574
575		dup menuset-setnum-namevar ( n n -- n )
576		unsetenv
577
578		\ If the current menuset does not populate the first menuitem,
579		\ we stop completely.
580
581		menuset_use_name @ true = if
582			s" set buf=${affix}menu_command[1]"
583		else
584			s" set buf=menuset${affix}_command[1]"
585		then
586		evaluate s" buf" getenv getenv -1 = if
587			drop ( n -- )
588			s" buf" unsetenv
589			menuset-cleanup
590			exit
591		else
592			drop ( n c-addr2 -- n ) \ unused
593		then
594
595		[char] 1 ( n -- n x ) \ Loop range ASCII '1' (49) to '8' (56)
596		begin
597			dup menuset_x tuck c! 1 s" x" setenv \ set $x to x
598
599			s" set var=caption" evaluate
600			menuset-unloadmenuxvar
601			menuset-unloadmenuxvar
602			menuset-unloadansixvar
603			[char] 0 ( n x -- n x y ) \ Inner loop '0' to '9'
604			begin
605				dup menuset_y tuck c! 1 s" y" setenv
606					\ sets $y to y
607				menuset-unloadmenuxyvar
608				menuset-unloadansixyvar
609				1+ dup 57 > ( n x y -- n x y' 0|-1 )
610			until
611			drop ( n x y -- n x )
612			s" set var=command" evaluate menuset-unloadmenuxvar
613			s" set var=init"    evaluate menuset-unloadmenuxvar
614			s" set var=keycode" evaluate menuset-unloadmenuxvar
615			s" set var=root"    evaluate menuset-unloadtypelessxvar
616			s" set var=text"    evaluate menuset-unloadtoggledxvar
617			s" set var=ansi"    evaluate menuset-unloadtoggledxvar
618
619			1+ dup 56 > ( x -- x' 0|-1 ) \ increment and test
620		until
621		drop ( n x -- n ) \ loop iterator
622
623		s" set var=acpi"        evaluate menuset-unloadmenuvar
624		s" set var=osconsole"   evaluate menuset-unloadmenuvar
625		s" set var=kmdb"        evaluate menuset-unloadmenuvar
626		s" set var=init"        evaluate menuset-unloadmenuvar
627		s" set var=options"     evaluate menuset-unloadmenuvar
628		s" set var=optionstext" evaluate menuset-unloadmenuvar
629		s" set var=reboot"      evaluate menuset-unloadmenuvar
630
631		1+ dup 65535 > ( n -- n' 0|-1 ) \ increment and test
632	until
633	drop ( n' -- ) \ loop iterator
634
635	s" buf" unsetenv
636	menuset-cleanup
637;
638
639only forth definitions
640
641: menuset-loadinitial ( -- )
642	s" menuset_initial" getenv dup -1 <> if
643		?number 0<> if
644			menuset-loadsetnum
645		then
646	else
647		drop \ cruft
648	then
649;
650