Z80 and R800 Assembly/Machine Language Op-code Tables

Written by "Cyberknight" Masao Kawata.
E-Mail: cyberknight@catsrule.garfield.com
Home Page : http://welcome.to/unicorndreams
Revised: 1998-May-12 Tuesday.

Notes:

*1: the op-code "ED 70" has no mnemonic defined for Z80, though it is a valid instruction.
*2: SHL and SHLA instructions of the R800 are the same, but with two different mnemonics defined, so they can "pair" the SHR and SHRA instruction mnemonics.
*3: some op-codes are equivalent, performing the same operations, so they are assigned to the same mnemonics.

Z80/R800 Instruction Table:

Fast Reference (sorted op-codes)
Op-codes (Hexadecimal)	Z80 Assembly Mnemonics	R800 Assembly Mnemonics
00	nop	nop
01 nnl nnh	ld bc,nn	ld .bc,nn
02	ld (bc),a	ld [.bc],.a
03	inc bc	inc .bc
04	inc b	inc .b
05	dec b	dec .b
06 n	ld b,n	ld .b,n
07	rlca	rola
08	ex af,af'	xch .af,.af'
09	add hl,bc	add .hl,.bc
0A	ld a,(bc)	ld .a,[.bc]
0B	dec bc	dec .bc
0C	inc c	inc .c
0D	dec c	dec .c
0E n	ld c,n	ld .c,n
0F	rrca	rora
10 d	djnz d	dbnz d
11 nnl nnh	ld de,nn	ld .de,nn
12	ld (de),a	ld [.de],.a
13	inc de	inc .de
14	inc d	inc .d
15	dec d	dec .d
16 n	ld d,n	ld .d,n
17	rla	rolca
18 d	jr d	short br d
19	add hl,de	add .hl,.de
1A	ld a,(de)	ld .a,[.de]
1B	dec de	dec .de
1C	inc e	inc .e
1D	dec e	dec .e
1E n	ld e,n	ld .e,n
1F	rra	rorca
20 d	jr nz,d	short bnz d
21 nnl nnh	ld hl,nn	ld .hl,nn
22 nnl nnh	ld (nn),hl	ld [nn],.hl
23	inc hl	inc .hl
24	inc h	inc .h
25	dec h	dec .h
26 n	ld h,n	ld .h,n
27	daa	adj .a
28 d	jr z,d	short bz d
29	add hl,hl	add .hl,.hl
2A nnl nnh	ld hl,(nn)	ld .hl,[nn]
2B	dec hl	dec .hl
2C	inc l	inc .l
2D	dec l	dec .l
2E n	ld l,n	ld .l,n
2F	cpl	not .a
30 d	jr nc,d	short bnc d
31 nnl nnh	ld sp,nn	ld .sp,nn
32 nnl nnh	ld (nn),a	ld [nn],.a
33	inc sp	inc .sp
34	inc (hl)	inc [.hl]
35	dec (hl)	dec [.hl]
36 n	ld (hl),n	ld [.hl],n
37	scf	setc
38 d	jr c,d	short bc d
39	add hl,sp	add .hl,.sp
3A nnl nnh	ld a,(nn)	ld .a,[nn]
3B	dec sp	dec .sp
3C	inc a	inc .a
3D	dec a	dec .a
3E n	ld a,n	ld .a,n
3F	ccf	notc
40	ld b,b	ld .b,.b
41	ld b,c	ld .b,.c
42	ld b,d	ld .b,.d
43	ld b,e	ld .b,.e
44	ld b,h	ld .b,.h
45	ld b,l	ld .b,.l
46	ld b,(hl)	ld .b,[.hl]
47	ld b,a	ld .b,.a
48	ld c,b	ld .c,.b
49	ld c,c	ld .c,.c
4A	ld c,d	ld .c,.d
4B	ld c,e	ld .c,.e
4C	ld c,h	ld .c,.h
4D	ld c,l	ld .c,.l
4E	ld c,(hl)	ld .c,[.hl]
4F	ld c,a	ld .c,.a
50	ld d,b	ld .d,.b
51	ld d,c	ld .d,.c
52	ld d,d	ld .d,.d
53	ld d,e	ld .d,.e
54	ld d,h	ld .d,.h
55	ld d,l	ld .d,.l
56	ld d,(hl)	ld .d,[.hl]
57	ld d,a	ld .d,.a
58	ld e,b	ld .e,.b
59	ld e,c	ld .e,.c
5A	ld e,d	ld .e,.d
5B	ld e,e	ld .e,.e
5C	ld e,h	ld .e,.h
5D	ld e,l	ld .e,.l
5E	ld e,(hl)	ld .e,[.hl]
5F	ld e,a	ld .e,.a
60	ld h,b	ld .h,.b
61	ld h,c	ld .h,.c
62	ld h,d	ld .h,.d
63	ld h,e	ld .h,.e
64	ld h,h	ld .h,.h
65	ld h,l	ld .h,.l
66	ld h,(hl)	ld .h,[.hl]
67	ld h,a	ld .h,.a
68	ld l,b	ld .l,.b
69	ld l,c	ld .l,.c
6A	ld l,d	ld .l,.d
6B	ld l,e	ld .l,.e
6C	ld l,h	ld .l,.h
6D	ld l,l	ld .l,.l
6E	ld l,(hl)	ld .l,[.hl]
6F	ld l,a	ld .l,.a
70	ld (hl),b	ld [.hl],.b
71	ld (hl),c	ld [.hl],.c
72	ld (hl),d	ld [.hl],.d
73	ld (hl),e	ld [.hl],.e
74	ld (hl),h	ld [.hl],.h
75	ld (hl),l	ld [.hl],.l
76	halt	halt
77	ld (hl),a	ld [.hl],.a
78	ld a,b	ld .a,.b
79	ld a,c	ld .a,.c
7A	ld a,d	ld .a,.d
7B	ld a,e	ld .a,.e
7C	ld a,h	ld .a,.h
7D	ld a,l	ld .a,.l
7E	ld a,(hl)	ld .a,[.hl]
7F	ld a,a	ld .a,.a
80	add a,b	add .a,.b
81	add a,c	add .a,.c
82	add a,d	add .a,.d
83	add a,e	add .a,.e
84	add a,h	add .a,.h
85	add a,l	add .a,.l
86	add a,(hl)	add .a,[.hl]
87	add a,a	add .a,.a
88	adc a,b	addc .a,.b
89	adc a,c	addc .a,.c
8A	adc a,d	addc .a,.d
8B	adc a,e	addc .a,.e
8C	adc a,h	addc .a,.h
8D	adc a,l	addc .a,.l
8E	adc a,(hl)	addc .a,[.hl]
8F	adc a,a	addc .a,.a
90	sub b	sub .a,.b
91	sub c	sub .a,.c
92	sub d	sub .a,.d
93	sub e	sub .a,.e
94	sub h	sub .a,.h
95	sub l	sub .a,.l
96	sub (hl)	sub .a,[.hl]
97	sub a	sub .a,.a
98	sbc a,b	subc .a,.b
99	sbc a,c	subc .a,.c
9A	sbc a,d	subc .a,.d
9B	sbc a,e	subc .a,.e
9C	sbc a,h	subc .a,.h
9D	sbc a,l	subc .a,.l
9E	sbc a,(hl)	subc .a,[.hl]
9F	sbc a,a	subc .a,.a
A0	and b	and .a,.b
A1	and c	and .a,.c
A2	and d	and .a,.d
A3	and e	and .a,.e
A4	and h	and .a,.h
A5	and l	and .a,.l
A6	and (hl)	and .a,[.hl]
A7	and a	and .a,.a
A8	xor b	xor .a,.b
A9	xor c	xor .a,.c
AA	xor d	xor .a,.d
AB	xor e	xor .a,.e
AC	xor h	xor .a,.h
AD	xor l	xor .a,.l
AE	xor (hl)	xor .a,[.hl]
AF	xor a	xor .a,.a
B0	or b	or .a,.b
B1	or c	or .a,.c
B2	or d	or .a,.d
B3	or e	or .a,.e
B4	or h	or .a,.h
B5	or l	or .a,.l
B6	or (hl)	or .a,[.hl]
B7	or a	or .a,.a
B8	cp b	cmp .a,.b
B9	cp c	cmp .a,.c
BA	cp d	cmp .a,.d
BB	cp e	cmp .a,.e
BC	cp h	cmp .a,.h
BD	cp l	cmp .a,.l
BE	cp (hl)	cmp .a,[.hl]
BF	cp a	cmp .a,.a
C0	ret nz	ret nz
C1	pop bc	pop .bc
C2 nnl nnh	jp nz,nn	bnz nn
C3 nnl nnh	jp nn	br nn
C4 nnl nnh	call nz,nn	call nz,nn
C5	push bc	push .bc
C6 n	add a,n	add .a,n
C7	rst 00H	brk 00H
C8	ret z	ret z
C9	ret	ret
CA nnl nnh	jp z,nn	bz nn
CB 00	rlc b	rol .b
CB 01	rlc c	rol .c
CB 02	rlc d	rol .d
CB 03	rlc e	rol .e
CB 04	rlc h	rol .h
CB 05	rlc l	rol .l
CB 06	rlc (hl)	rol [.hl]
CB 07	rlc a	rol .a
CB 08	rrc b	ror .b
CB 09	rrc c	ror .c
CB 0A	rrc d	ror .d
CB 0B	rrc e	ror .e
CB 0C	rrc h	ror .h
CB 0D	rrc l	ror .l
CB 0E	rrc (hl)	ror [.hl]
CB 0F	rrc a	ror .a
CB 10	rl b	rolc .b
CB 11	rl c	rolc .c
CB 12	rl d	rolc .d
CB 13	rl e	rolc .e
CB 14	rl h	rolc .h
CB 15	rl l	rolc .l
CB 16	rl (hl)	rolc [.hl]
CB 17	rl a	rolc .a
CB 18	rr b	rorc .b
CB 19	rr c	rorc .c
CB 1A	rr d	rorc .d
CB 1B	rr e	rorc .e
CB 1C	rr h	rorc .h
CB 1D	rr l	rorc .l
CB 1E	rr (hl)	rorc [.hl]
CB 1F	rr a	rorc .a
CB 20	sla a	shl .b shla .b
CB 21	sla a	shl .c shla .c
CB 22	sla a	shl .d shla .d
CB 23	sla a	shl .e shla .e
CB 24	sla a	shl .h shla .h
CB 25	sla a	shl .l shla .l
CB 26	sla (hl)	shl [.hl] shla [.hl]
CB 27	sla a	shl .a shla .a
CB 28	sra b	shra .b
CB 29	sra c	shra .c
CB 2A	sra d	shra .d
CB 2B	sra e	shra .e
CB 2C	sra h	shra .h
CB 2D	sra l	shra .l
CB 2E	sra (hl)	shra [.hl]
CB 2F	sra a	shra .a
CB 30 CB 37	invalid op-codes
CB 38	srl b	shr .b
CB 39	srl c	shr .c
CB 3A	srl d	shr .d
CB 3B	srl e	shr .e
CB 3C	srl h	shr .h
CB 3D	srl l	shr .l
CB 3E	srl (hl)	shr [.hl]
CB 3F	srl a	shr .a
CB 40	bit 0,b	bit 0,.b
CB 41	bit 0,c	bit 0,.c
CB 42	bit 0,d	bit 0,.d
CB 43	bit 0,e	bit 0,.e
CB 44	bit 0,h	bit 0,.h
CB 45	bit 0,l	bit 0,.l
CB 46	bit 0,(hl)	bit 0,[.hl]
CB 47	bit 0,a	bit 0,.a
CB 48	bit 1,b	bit 1,.b
CB 49	bit 1,c	bit 1,.c
CB 4A	bit 1,d	bit 1,.d
CB 4B	bit 1,e	bit 1,.e
CB 4C	bit 1,h	bit 1,.h
CB 4D	bit 1,l	bit 1,.l
CB 4E	bit 1,(hl)	bit 1,[.hl]
CB 4F	bit 1,a	bit 1,.a
CB 50	bit 2,b	bit 2,.b
CB 51	bit 2,c	bit 2,.c
CB 52	bit 2,d	bit 2,.d
CB 53	bit 2,e	bit 2,.e
CB 54	bit 2,h	bit 2,.h
CB 55	bit 2,l	bit 2,.l
CB 56	bit 2,(hl)	bit 2,[.hl]
CB 57	bit 2,a	bit 2,.a
CB 58	bit 3,b	bit 3,.b
CB 59	bit 3,c	bit 3,.c
CB 5A	bit 3,d	bit 3,.d
CB 5B	bit 3,e	bit 3,.e
CB 5C	bit 3,h	bit 3,.h
CB 5D	bit 3,l	bit 3,.l
CB 5E	bit 3,(hl)	bit 3,[.hl]
CB 5F	bit 3,a	bit 3,.a
CB 60	bit 4,b	bit 4,.b
CB 61	bit 4,c	bit 4,.c
CB 62	bit 4,d	bit 4,.d
CB 63	bit 4,e	bit 4,.e
CB 64	bit 4,h	bit 4,.h
CB 65	bit 4,l	bit 4,.l
CB 66	bit 4,(hl)	bit 4,[.hl]
CB 67	bit 4,a	bit 4,.a
CB 68	bit 5,b	bit 5,.b
CB 69	bit 5,c	bit 5,.c
CB 6A	bit 5,d	bit 5,.d
CB 6B	bit 5,e	bit 5,.e
CB 6C	bit 5,h	bit 5,.h
CB 6D	bit 5,l	bit 5,.l
CB 6E	bit 5,(hl)	bit 5,[.hl]
CB 6F	bit 5,a	bit 5,.a
CB 70	bit 6,b	bit 6,.b
CB 71	bit 6,c	bit 6,.c
CB 72	bit 6,d	bit 6,.d
CB 73	bit 6,e	bit 6,.e
CB 74	bit 6,h	bit 6,.h
CB 75	bit 6,l	bit 6,.l
CB 76	bit 6,(hl)	bit 6,[.hl]
CB 77	bit 6,a	bit 6,.a
CB 78	bit 7,b	bit 7,.b
CB 79	bit 7,c	bit 7,.c
CB 7A	bit 7,d	bit 7,.d
CB 7B	bit 7,e	bit 7,.e
CB 7C	bit 7,h	bit 7,.h
CB 7D	bit 7,l	bit 7,.l
CB 7E	bit 7,(hl)	bit 7,[.hl]
CB 7F	bit 7,a	bit 7,.a
CB 80	res 0,b	clr 0,.b
CB 81	res 0,c	clr 0,.c
CB 82	res 0,d	clr 0,.d
CB 83	res 0,e	clr 0,.e
CB 84	res 0,h	clr 0,.h
CB 85	res 0,l	clr 0,.l
CB 86	res 0,(hl)	clr 0,[.hl]
CB 87	res 0,a