VT100 encoding

The VT100 code page is a character encoding used to represent text on the Classic Mac OS for compatibility with the VT100 terminal. It encodes 256 characters, the first 128 of which are identical to ASCII, with the remaining characters including mathematical symbols, diacritics, and additional punctuation marks. It is suitable for English and several other Western languages. It is similar to Mac OS Roman, but includes all characters in ISO 8859-1 except for the currency sign (which was superseded by the euro sign), the no-break space, and the soft hyphen. It also includes all characters in DEC Special Graphics (code page 1090), except for the new line and no-break space controls. The VT100 encoding is only used on the VT100 font on the Classic Mac OS, and is not an official Mac OS character encoding.[1]

VT100

Language(s)	English, various others
Classification	Extended ASCII, Mac OS script
Extends	ASCII

Codepage layout

The following table shows how characters are encoded in the VT100 character set. Each character is shown with its Unicode equivalent.

VT100

	_0	_1	_2	_3	_4	_5	_6	_7	_8	_9	_A	_B	_C	_D	_E	_F
0_	NUL[lower-alpha 1] 0000	SOH[lower-alpha 1] 0001	STX[lower-alpha 1] 0002	ETX[lower-alpha 1] 0003	EOT[lower-alpha 1] 0004	ENQ[lower-alpha 1] 0005	ACK[lower-alpha 1] 0006	BEL[lower-alpha 1] 0007	BS[lower-alpha 1] 0008	HT[lower-alpha 1] 0009	LF[lower-alpha 1] 000A	VT[lower-alpha 1] 000B	FF[lower-alpha 1] 000C	CR[lower-alpha 1] 000D	SO[lower-alpha 1] 000E	SI[lower-alpha 1] 000F
1_	DLE[lower-alpha 1] 0010	DC1[lower-alpha 1] 0011	DC2[lower-alpha 1] 0012	DC3[lower-alpha 1] 0013	DC4[lower-alpha 1] 0014	NAK[lower-alpha 1] 0015	SYN[lower-alpha 1] 0016	ETB[lower-alpha 1] 0017	CAN[lower-alpha 1] 0018	EM[lower-alpha 1] 0019	SUB[lower-alpha 1] 001A	ESC[lower-alpha 1] 001B	FS[lower-alpha 1] 001C	GS[lower-alpha 1] 001D	RS[lower-alpha 1] 001E	US[lower-alpha 1] 001F
2_	SP[lower-alpha 1] 0020	! 0021	" 0022	# 0023	$ 0024	% 0025	& 0026	' 0027	( 0028	) 0029	* 002A	+ 002B	, 002C	- 002D	. 002E	/ 002F
3_	0 0030	1 0031	2 0032	3 0033	4 0034	5 0035	6 0036	7 0037	8 0038	9 0039	: 003A	; 003B	< 003C	= 003D	> 003E	? 003F
4_	@ 0040	A 0041	B 0042	C 0043	D 0044	E 0045	F 0046	G 0047	H 0048	I 0049	J 004A	K 004B	L 004C	M 004D	N 004E	O 004F
5_	P 0050	Q 0051	R 0052	S 0053	T 0054	U 0055	V 0056	W 0057	X 0058	Y 0059	Z 005A	[ 005B	\ 005C	] 005D	^ 005E	_ 005F
6_	` 0060	a 0061	b 0062	c 0063	d 0064	e 0065	f 0066	g 0067	h 0068	i 0069	j 006A	k 006B	l 006C	m 006D	n 006E	o 006F
7_	p 0070	q 0071	r 0072	s 0073	t 0074	u 0075	v 0076	w 0077	x 0078	y 0079	z 007A	{ 007B	| 007C	} 007D	~ 007E	DEL[lower-alpha 1] 007F
8_	Ä 00C4	Å 00C5	Ç 00C7	É 00C9	Ñ 00D1	Ö 00D6	Ü 00DC	á 00E1	à 00E0	â 00E2	ä 00E4	ã 00E3	å 00E5	ç 00E7	é 00E9	è 00E8
9_	ê 00EA	ë 00EB	í 00ED	ì 00EC	î 00EE	ï 00EF	ñ 00F1	ó 00F3	ò 00F2	ô 00F4	ö 00F6	õ 00F5	ú 00FA	ù 00F9	û 00FB	ü 00FC
A_	Ý 00DD	° 00B0	¢ 00A2[lower-alpha 2]	£ 00A3[lower-alpha 2]	§ 00A7	¸ 00B8	¶ 00B6	ß 00DF	® 00AE	© 00A9[lower-alpha 2]	™ 2122	´ 00B4	¨ 00A8	≠ 2260	Æ 00C6	Ø 00D8
B_	× 00D7	± 00B1[lower-alpha 2]	≤ 2264	≥ 2265	¥ 00A5	µ 00B5[lower-alpha 2]	¹ 00B9	² 00B2	³ 00B3	π 03C0	¦ 00A6	ª 00AA	º 00BA	▒ 2592	æ 00E6	ø 00F8
C_	¿ 00BF	¡ 00A1	¬ 00AC	½ 00BD	ƒ 0192	¼ 00BC	¾ 00BE	« 00AB	» 00BB	… 2026	�[lower-alpha 3] FFFD	À 00C0	à 00C3	Õ 00D5	Œ 0152	œ 0153
D_	– 2013	— 2014	┘ 2518	┐ 2510	┌ 250C	└ 2514	÷ 00F7	◆ 25C6	ÿ 00FF	Ÿ 0178	┼ 253C	€[lower-alpha 4] 20AC	Ð 00D0	ð 00F0	Þ 00DE	þ 00FE
E_	ý 00FD	· 00B7	⎺ 23BA	⎻ 23BB	─[lower-alpha 5] 2500	Â 00C2	Ê 00CA	Á 00C1	Ë 00CB	È 00C8	Í 00CD	Î 00CE	Ï 00CF	Ì 00CC	Ó 00D3	Ô 00D4
F_		Ò 00D2	Ú 00DA	Û 00DB	Ù 00D9	⎼ 23BC	⎽ 23BD	├ 251C	┤ 2524	┴ 2534	┬ 252C	│ 2502

  Letter   Number   Punctuation   Symbol   Other   Undefined

1. This character is a control, which may or may not be visible.
2. The codes 0xA2, 0xA3, 0xA9, 0xB1, and 0xB5 coincidentally have the same character assignment as ISO 8859-1 (and thus Unicode).
3. The character 0xCA is the replacement character, which is displayed as a reversed question mark in this encoding.
4. Before Mac OS 8.5, the character 0xDB mapped to currency sign (¤), Unicode character U+00A4.
5. The character 0xE4 is the horizontal scan line-5, which is unified with U+2500 in Unicode.

References

1. "Older Character Sets". whitefiles.org. Retrieved October 3, 2019.