Intel 8080/Коды команд: различия между версиями

Версия от 20:41, 7 февраля 2009

Этот документ создан для Emuverse и распространяется на условиях лицензии CC-BY-SA-3.0.

Таблица кодов

Код₂	Код₁₆	Данные	Команда	Действие	Такты
Группа 00
00 000 000	00		NOP		4
00 001 000	08		?
00 010 000	10		?
00 011 000	18		?
00 100 000	20		? (8085: RIM)	8085: READ INT MASK
00 101 000	28		?
00 110 000	30		? (8085: SIM)	8085: SET INT MASK
00 111 000	38		?
00 RP1 001			DAD RP	HL <- HL + RP	4
00 RP0 001		DATA16	LXI RP, DATA16	RP <- DATA16	10
00 0R0 010			STAX [R], A	[R] <- A	7
00 0R1 010			LDAX A, [R]	A <- [R]	7
00 100 010	22	ADDR16	SHLD ADDR16	[ADDR16] <- HL	16
00 101 010	2A	ADDR16	LHLD ADDR16	HL <- [ADDR16]	16
00 110 010	32	ADDR16	STA ADDR16	[ADDR16] <- A	13
00 111 010	3A	ADDR16	LDA ADDR16	A <- [ADDR16]	13
00 RP1 011			DCX RP	RP <- RP-1	5
00 RP0 011			INX RP	RP <- RP+1	5
00 SSS 100			INR SSS	SSS <- SSS+1	5/10
00 SSS 101			DCR SSS	SSS <- SSS-1	5/10
00 DDD 110		DATA8	MVI DDD, DATA8	DDD <- DATA8	7/11
00 000 111	07		RLC	CY+A LEFT	4
00 001 111	0F		RRC	CY+A RIGHT	4
00 010 111	17		RAL	CY+A CYCLE RIGHT	4
00 011 111	1F		RAR	CY+A CYCLE LEFT	4
00 100 111	27		DAA		5
00 101 111	2F		CMA	A <- NOT A	4
00 110 111	37		STC	CY = 1	4
00 111 111	3F		CMC	CY <- NOT CY	4
Группа 01
01 110 110	76		HLT		7(?)
01 DDD SSS			MOV DDD, SSS	DDD <- SSS	1
Группа 10
10 000 SSS			ADD SSS	A <- A+SSS
10 001 SSS			ADC SSS	A <- A+SSS+CY
10 010 SSS			SUB SSS	A <- A-SSS
10 011 SSS			SBB SSS	A <- A-SSS-CY
10 100 SSS			ANA SSS	A <- A AND SSS
10 101 SSS			XRA SSS	A <- A XOR SSS
10 110 SSS			ORA SSS	A <- A OR SSS
10 111 SSS			CMP SSS	COMPARE A, SSS
Группа 11
11 XXX 000			RETIF	RETURN IF XXX IS TRUE
11 RP0 001			POP RP
11 001 001	C9		RET
11 011 001	D9		?
11 101 001	E9		PCHL	JMP [HL]
11 111 001	F9		SPHL	SP <- HL
11 XXX 010		ADDR16	JMP IF ADDR16	JUMP IF XXX IS TRUE
11 000 011	C3	ADDR16	JMP ADDR16
11 010 011	D3	PORT8	OUT PORT8	[PORT8] <- A
11 011 011	DB	PORT8	IN PORT8	A <- [PORT8]
11 100 011	E3		XTHL	[SP] <-> HL
11 101 011	EB		XCHG	DE <-> HL
11 110 011	F3		DI	INT DISABLE
11 111 011	FB		EI	INT ENABLE
11 XXX 100		ADDR16	CALLIF ADDR16	CALL IF XXX IS TRUE
11 RP0 101			PUSH RP
11 001 101	CD	ADDR16	CALL ADDR16
11 011 101	DD		?
11 101 101	ED		?
11 111 101	FD		?
11 000 110	C6	DATA8	ADI DATA8	A <- A+DATA8
11 001 110	CE	DATA8	ACI DATA8	A <- A+DATA8+CY
11 010 110	D6	DATA8	SUI DATA8	A <- A-DATA8
11 011 110	DE	DATA8	SBI DATA8	A <- A-DATA8-CY
11 100 110	E6	DATA8	ANI DATA8	A <- A AND DATA8
11 101 110	EE	DATA8	XRI DATA8	A <- A XOR DATA8
11 110 110	F6	DATA8	ORI DATA8	A <- A OR DATA8
11 111 110	FE	DATA8	CPI DATA8	COMPARE A, DATA8
11 NNN 111			RST NNN	INT NNN

Расшифровка сокращений

DDD, SSS

000=B
001=C
010=D
011=E
100=H
101=L
110=М (т.е. [HL])
111=A

R

0=BC
1=DE

RP

0=BC
1=DE
2=HL
3=SP или PSW (Status word) для PUSH/POP

XXX

000: NOT ZERO
001: ZERO
010: NOT CARRY
011: CARRY
100: NOT PARITY
101: PARITY
110: POSITIVE
111: NEGATIVE

@@ Строка 7: / Строка 7: @@
 !colspan=7|Группа 00
 |-
-|00 000 000 || 00 || &nbsp; || NOP || &nbsp; || &nbsp; ||
+|00 000 000 || 00 || &nbsp; || NOP || &nbsp; || &nbsp; || 4
 |-
 |00 001 000 || 08 || &nbsp; || ? || &nbsp; || &nbsp; ||
@@ Строка 23: / Строка 23: @@
 |00 111 000 || 38 || &nbsp; || ? || &nbsp; || &nbsp; || &nbsp;
 |-
-|00 RP1 001 || &nbsp; || &nbsp; || DAD RP || HL <- HL + RP || &nbsp; || &nbsp;
+|00 RP1 001 || &nbsp; || &nbsp; || DAD RP || HL <- HL + RP || &nbsp; || 4
 |-
-|00 RP0 001 || &nbsp; || DATA16 || LXI RP, DATA16 || RP <- DATA16 || &nbsp; || 3
+|00 RP0 001 || &nbsp; || DATA16 || LXI RP, DATA16 || RP <- DATA16 || &nbsp; || 10
 |-
-|00 0R0 010 || &nbsp; || &nbsp; || STAX [R], A || [R] <- A || &nbsp; || 2
+|00 0R0 010 || &nbsp; || &nbsp; || STAX [R], A || [R] <- A || &nbsp; || 7
 |-
-|00 0R1 010 || &nbsp; || &nbsp; || LDAX A, [R] || A <- [R] || &nbsp; || 2
+|00 0R1 010 || &nbsp; || &nbsp; || LDAX A, [R] || A <- [R] || &nbsp; || 7
 |-
-|00 100 010 || 22 || ADDR16 || SHLD ADDR16 || [ADDR16] <- HL || &nbsp; || 5
+|00 100 010 || 22 || ADDR16 || SHLD ADDR16 || [ADDR16] <- HL || &nbsp; || 16
 |-
-|00 101 010 || 2A || ADDR16 || LHLD ADDR16 || HL <- [ADDR16] || &nbsp; || 5
+|00 101 010 || 2A || ADDR16 || LHLD ADDR16 || HL <- [ADDR16] || &nbsp; || 16
 |-
-|00 110 010 || 32 || ADDR16 || STA ADDR16 || [ADDR16] <- A || &nbsp; || 4
+|00 110 010 || 32 || ADDR16 || STA ADDR16 || [ADDR16] <- A || &nbsp; || 13
 |-
-|00 111 010 || 3A || ADDR16 || LDA ADDR16 || A <- [ADDR16] || &nbsp; || 4
+|00 111 010 || 3A || ADDR16 || LDA ADDR16 || A <- [ADDR16] || &nbsp; || 13
 |-
-|00 RP1 011 || &nbsp; || &nbsp; || DCX RP || RP <- RP-1 || &nbsp; || &nbsp;
+|00 RP1 011 || &nbsp; || &nbsp; || DCX RP || RP <- RP-1 || &nbsp; || 5
 |-
-|00 RP0 011 || &nbsp; || &nbsp; || INX RP || RP <- RP+1 || &nbsp; || &nbsp;
+|00 RP0 011 || &nbsp; || &nbsp; || INX RP || RP <- RP+1 || &nbsp; || 5
 |-
-|00 SSS 100 || &nbsp; || &nbsp; || INR SSS || SSS <- SSS+1 || &nbsp; || &nbsp;
+|00 SSS 100 || &nbsp; || &nbsp; || INR SSS || SSS <- SSS+1 || &nbsp; || 5/10
 |-
-|00 SSS 101 || &nbsp; || &nbsp; || DCR SSS || SSS <- SSS-1 || &nbsp; || &nbsp;
+|00 SSS 101 || &nbsp; || &nbsp; || DCR SSS || SSS <- SSS-1 || &nbsp; || 5/10
 |-
-|00 DDD 110 || &nbsp; || DATA8 || MVI DDD, DATA8 || DDD <- DATA8 || &nbsp; || 2
+|00 DDD 110 || &nbsp; || DATA8 || MVI DDD, DATA8 || DDD <- DATA8 || &nbsp; || 7/11
 |-
-|00 000 111 || 07 || &nbsp; || RLC || CY+A LEFT || &nbsp; || &nbsp;
+|00 000 111 || 07 || &nbsp; || RLC || CY+A LEFT || &nbsp; || 4
 |-
-|00 001 111 || 0F || &nbsp; || RRC || CY+A RIGHT || &nbsp; || &nbsp;
+|00 001 111 || 0F || &nbsp; || RRC || CY+A RIGHT || &nbsp; || 4
 |-
-|00 010 111 || 17 || &nbsp; || RAL || CY+A CYCLE RIGHT || &nbsp; || &nbsp;
+|00 010 111 || 17 || &nbsp; || RAL || CY+A CYCLE RIGHT || &nbsp; || 4
 |-
-|00 011 111 || 1F || &nbsp; || RAR || CY+A CYCLE LEFT || &nbsp; || &nbsp;
+|00 011 111 || 1F || &nbsp; || RAR || CY+A CYCLE LEFT || &nbsp; || 4
 |-
-|00 100 111 || 27 || &nbsp; || DAA || &nbsp; || &nbsp; || &nbsp;
+|00 100 111 || 27 || &nbsp; || DAA || &nbsp; || &nbsp; || 5
 |-
-|00 101 111 || 2F || &nbsp; || CMA || A <- NOT A || &nbsp; || &nbsp;
+|00 101 111 || 2F || &nbsp; || CMA || A <- NOT A || &nbsp; || 4
 |-
-|00 110 111 || 37 || &nbsp; || STC || CY = 1 || &nbsp; || &nbsp;
+|00 110 111 || 37 || &nbsp; || STC || CY = 1 || &nbsp; || 4
 |-
-|00 111 111 || 3F || &nbsp; || CMC || CY <- NOT CY || &nbsp; || &nbsp;
+|00 111 111 || 3F || &nbsp; || CMC || CY <- NOT CY || &nbsp; || 4
 |-
 !colspan=7|Группа 01
 |-
-|01 110 110 || 76 || &nbsp; || HLT || &nbsp; || &nbsp; ||
+|01 110 110 || 76 || &nbsp; || HLT || &nbsp; || &nbsp; || 7(?)
 |-
 |01 DDD SSS || &nbsp; || &nbsp; || MOV DDD, SSS || DDD <- SSS || &nbsp; || 1