DKOI-8

DKOI-8 (binary code for the exchange (and processing) of information, 8 bits) is a Cyrillic code page used on computers of the EC series of computers ^[1] . The basis for DKOI-8 was the telegraph encoding.

Standardized in GOST 19768-74 (ST SEV 358-76) ^[2] and 19768-93 (ST SEV 358-88) ^[3] .

The standard establishes two versions of the encoding - K1 and K2. In the second embodiment, Russian letters matching in their Latin letters (A, B, E, K, M, H, O, P, C, T, X, a, e, o, p, s, y, x), not used - instead of them are Latin with the same style (in the table, these unused letters are marked in yellow; the rest of the Russian letters that do not match any Latin letters are marked in green).

Initially, in both cases, the letter ёё and the capital “solid sign” of Kommersant were missing. Later added to GOST 19768-93 in version K1.

In variant K2, the negation sign ¬ and the dash above ‾ instead of ^ and ~ (positions 0x5F and 0xA1).

In both cases, it is allowed to place the dollar sign $ at position 91 (0x5B), in this case the currency sign ¤ is placed at position 225 (0xE1). With this modification, option K1 becomes compatible with the IBM EBCDIC 880 encoding

	.0	.one	.2	.3	.four	.five	.6	.7	.eight	.9	.A	.B	.C	.D	.E	.F.
0.	Nul 0	SOH one	STX 2	ETX 3	Pf 9C	Ht 9	LC 86	DEL 7F	GE 97	Rlf 8D	SMM 8E	VT B	Ff C	CR D	SO E	SI F
one.	Dle ten	DC1 eleven	DC2 12	TM 13	RES 9D	Nl 85	BS eight	IL 87	CAN 18	EM nineteen	CC 92	Cu1 8F	IFS 1C	IGS 1D	IRS 1E	IUS 1F
2.	DS 80	SOS 81	FS 82		BYP 84	Lf A	ETB 17	Esc 1B			Sm 8A	Cu2 8B		ENQ five	ACK 6	Bel 7
3.			SYN sixteen		PN 94	RS 95	UC 96	Eot four				Cu3 9B	DC4 14	Nak 15		SUB 1A
four.	SPACE 20										[ 5B	. 2E	< 3C	( 28	+ 2B	! 21
five.	& 26										] 5D	¤ A4	* 2A	) 29th	; 3B	¬ AC
6.	- 2D	/ 2F									\| 7C	, 2C	% 25	_ 5F	> 3E	? 3F
7.							Yu 44E	but 430	b 431	` 60	: 3A	# 23	@ 40	'' 27	= 3D	" 22
eight.	c 446	a 61	b 62	c 63	d 64	e 65	f 66	g 67	h 68	i 69	d 434	e 435	f 444	g 433	x 445	and 438
9.	th 439	j 6A	k 6B	l 6C	m 6D	n 6E	o 6F	p 70	q 71	r 72	to 43A	l 43B	m 43C	n 43D	about 43E	P 43F
A.	I 44F	~ 7E	s 73	t 74	u 75	v 76	w 77	x 78	y 79	z 7A	R 440	with 441	t 442	at 443	well 436	at 432
B.	b 44C	s 44B	s 437	w 448	uh 44D	u 449	h 447	b 44A	YU 42E	BUT 410	B 411	Ts 426	D 414	E 415	F 424	G 413
C.	{ 7B	A 41	B 42	C 43	D 44	E 45	F 46	G 47	H 48	I 49	X 425	AND 418	Th 419	TO 41A	L 41B	M 41C
D.	} 7D	J 4A	K 4B	L 4C	M 4D	N 4E	O 4F	P 50	Q 51	R 52	N 41D	ABOUT 41E	P 41F	I 42F	R 420	WITH 421
E.	\ 5C		S 53	T 54	U 55	V 56	W 57	X 58	Y 59	Z 5A	T 422	At 423	F 416	AT 412	B 42C	S 42B
F.	0 thirty	one 31	2 32	3 33	four 34	five 35	6 36	7 37	eight 38	9 39	3 417	W 428	E 42D	U 429	H 427	Eo 9F

Combining letters

Combined Russian and Latin letters are highlighted in yellow.

letter	code	letter	code
BUT	C1	but	81
B	BA	b	78
AT	C2	at	AF
G	Bf	g	8D
D	BC	d	8A
E	C5	e	85
F	EC	well	Ae
3	FA	s	B2
AND	CB	and	8F
Th	CC	th	90
TO	D2	to	9A
L	CE	l	9B
M	D4	m	9C
N	C8	n	9D
ABOUT	D6	about	96
P	DC	P	9F
R	D7	R	97
WITH	C3	with	83
T	E3	t	AC
At	EB	at	A8
F	BE	f	8C
X	E7	x	A7
Ts	BB	c	80
H	FE	h	B6
W	Fb	w	B3
U	Fd	u	B5
B		b	B7
S	Ef	s	B1
B	Ee	b	B0
E	FC	uh	B4
YU	B8	Yu	76
I	DD	I	A0

Using DKOI

DKOI was used in programming languages:

ALMIR-65
Analyst 74
El 76

Notes

↑ Vostrikova Z. P. Programming in assembly language of the EU computer. - M .: Nauka, 1981. - S. 291.
↑ GOST 19768-74. Computing machines and data processing system. Codes 8-bit for the exchange and processing of information.
↑ GOST 19768-93. Information technology. Sets of 8-bit encoded characters. Information Processing Binary Code

[1] Vostrikova Z. P. Programming in assembly language of the EU computer. - M .: Nauka, 1981. - S. 291.

[2] GOST 19768-74. Computing machines and data processing system. Codes 8-bit for the exchange and processing of information.

[3] GOST 19768-93. Information technology. Sets of 8-bit encoded characters. Information Processing Binary Code

DKOI-8

Combining letters

Using DKOI

Notes

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