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+\ tag: firmware help
+\
+\ this code implements IEEE 1275-1994 ch. 7.4.1
+\
+\ Copyright (C) 2003 Stefan Reinauer
+\
+\ See the file "COPYING" for further information about
+\ the copyright and warranty status of this work.
+\
+
+hex
+
+: (help-generic)
+ ." Enter 'help command-name' or 'help category-name' for more help" cr
+ ." (Use ONLY the first word of a category description)" cr
+ ." Examples: help select -or- help line" cr cr
+ ." Categories:" cr
+ ." boot (Load and execute a client program)" cr
+ ." diag (Diagnostic routines)" cr
+ ;
+
+: (help-diag)
+ ." test <device> Run the selftest method for specified device" cr
+ ." test-all Execute test for all devices using selftest method" cr
+ ;
+
+: (help-boot)
+ ." boot [<device-specifier>:<device-arguments>] [boot-arguments]" cr
+ ." Examples:" cr
+ ." boot Default boot (values specified in nvram variables)" cr
+ ." boot disk1:a Boot from disk1 partition a" cr
+ ." boot hd:1,\boot\vmlinuz root=/dev/hda1" cr
+ ;
+
+: help ( "{name}<cr>" -- )
+ \ Provide information for category or specific command.
+ linefeed parse cr
+ dup 0= if
+ (help-generic)
+ 2drop
+ else
+ 2dup " diag" rot min comp not if
+ (help-diag) 2drop exit
+ then
+ 2dup " boot" rot min comp not if
+ (help-boot) 2drop exit
+ then
+ ." No help available for " type cr
+ then
+ ;
+