patch-1.3.22 linux/drivers/char/README.unicode

• Lines: 50
• Date: Thu Jan 1 02:00:00 1970
• Orig file: v1.3.21/linux/drivers/char/README.unicode
• Orig date: Tue Jun 13 15:40:16 1995

diff -u --recursive --new-file v1.3.21/linux/drivers/char/README.unicode linux/drivers/char/README.unicode
@@ -1,49 +0,0 @@
-The Linux kernel code has been rewritten to use Unicode to map
-characters to fonts.  By downloading a single Unicode-to-font table,
-both the eight-bit character sets and UTF-8 mode are changed to use
-the font as indicated.
-
-This changes the semantics of the eight-bit character tables subtly.
-The four character tables are now:
-
-Map symbol	Map name			Escape code (G0)
-
-LAT1_MAP	Latin-1 (ISO 8859-1)		ESC ( B
-GRAF_MAP	DEC VT100 pseudographics	ESC ( 0
-IBMPC_MAP	IBM code page 437		ESC ( U
-USER_MAP	User defined			ESC ( K
-
-In particular, ESC ( U is no longer "straight to font", since the font
-might be completely different than the IBM character set.  This
-permits for example the use of block graphics even with a Latin-1 font
-loaded.
-
-In accordance with the Unicode standard/ISO 10646 the range U+F000 to
-U+F8FF has been reserved for OS-wide allocation (the Unicode Standard
-refers to this as a "Corporate Zone").  U+F000 was picked as the
-starting point since it lets the direct-mapping area start on a large
-power of two (in case 1024- or 2048-character fonts ever become
-necessary).  This leaves U+E000 to U+EFFF as End User Zone.
-
-The Unicodes in the range U+F000 to U+F1FF have been hard-coded to map
-directly to the loaded font, bypassing the translation table.  The
-user-defined map now defaults to U+F000 to U+F1FF, emulating the
-previous behaviour.
-
-In addition, the following characters not present in Unicode 1.1.4 (at
-least, I have not found them!) have been defined; these are used by
-the DEC VT graphics map:
-
-U+F800 DEC VT GRAPHICS HORIZONTAL LINE SCAN 1
-U+F801 DEC VT GRAPHICS HORIZONTAL LINE SCAN 3
-U+F803 DEC VT GRAPHICS HORIZONTAL LINE SCAN 7
-U+F804 DEC VT GRAPHICS HORIZONTAL LINE SCAN 9
-
-The DEC VT220 uses a 6x10 character matrix, and these characters form
-a smooth progression in the DEC VT graphics character set.  I have
-omitted the scan 5 line, since it is also used as a block-graphics
-character, and hence has been coded as U+2500 FORMS LIGHT HORIZONTAL.
-However, I left U+F802 blank should the need arise.  
-
-	H. Peter Anvin <Peter.Anvin@linux.org>
-	Yggdrasil Computing, Inc.