DSM/ECU/TMP76xxx MH6xxx Instruction Set

Bytes	Mnem	Byte length	Cycles	Desc
00	TEST	1	*	TEST OPERATION TEST MODE ONLY
01	NOP	1	2	NO OPERATION
02	AIM DIR	3	?	AND IN MEMORY
03	OIM DIR	3	?	OR IN MEMORY
04	LSRD	1	3	LOGICAL SHIFT RIGHT DOUBLE ACCUMULATOR
05	ASLD / LSLD	1	3	ARITHMETIC / LOGICAL SHIFT LEFT DOUBLE ACC
06	TAP	1	2	TRANSFER FROM ACC A TO CONDITION CODE REGISTER
07	TPA	1	2	TRANSFER FROM CONDITION CODE REGISTER TO ACC A
08	INX	1	3	INCREMENT INDEX REGISTER X
09	DEX	1	3	DECREMENT INDEX REGISTER X
0A	CLV	1	2	CLEAR TWOS COMPLEMENT OVERFLOW BIT
0B	SEV	1	2	SET TWOS COMPLEMENT OVERFLOW BIT
0C	CLC	1	2	CLEAR CARRY
0D	SEC	1	2	SET CARRY
0E	CLI	1	2	CLEAR INTERRUPT MASK
0F	SEI	1	2	SET INTERRUPT MASK
10	SBA	1	2	SUBTRACT ACCUMULATORS
11	CBA	1	2	COMPARE ACCUMULATORS
14	IDIV DIR	2	6	INTEGER DIVIDE
15	FDIV DIR	2	6	FRACTIONAL DIVIDE
16	TAB	1	2	TRANSFER ACCUMULATOR A TO ACCUMULATOR B
17	TBA	1	2	TRANSFER FROM ACCUMULATOR B TO ACCUMULATOR A
18	XGXY	1	4	EXCHANGE REGISTER X AND REGISTER Y
19	DAA	1	2	DECIMAL ADJUST ACCUMULATOR A
1A	XGDX		1	EXCHANGE DOUBLE ACCUMLATOR AND INDEX REG X
1B	ABA	1	2	ADD ACCUMULATOR B TO ACCUMULATOR A
1C	CPD IMM	3	5	COMPARE DOUBLE ACCUMULATOR
1D	CPD DIR	2	6	COMPARE DOUBLE ACCUMULATOR
1F	CPD EXT	3	7	COMPARE DOUBLE ACCUMULATOR
20	BRA	2	3	BRANCH ALWAYS
21	BRN	2	3	BRANCH NEVER
22	BHI	2	3	BRANCH IF HIGHER
23	BLS	2	3	BRANCH IF LOWER OR SAME
24	BCC / BHS	2	3	BRANCH IF CARRY CLR / BRANCH IF HIGHER OR SAME
25	BCS / BLO	2	3	BRANCH IF CARRY SET / BRANCH IF LOWER
26	BNE	2	3	BRANCH IF NOT EQUAL TO ZERO
27	BEQ	2	3	BRANCH IF EQUAL
28	BVC	2	3	BRANCH IF OVERFLOW CLEAR
29	BVS	2	3	BRANCH IF OVERFLOW SET
2A	BPL	2	3	BRANCH IF PLUS
2B	BMI	2	3	BRANCH IF MINUS
2C	BGE	2	3	BRANCH IF GREATER THAN OR EQUAL TO ZERO
2D	BLT	2	3	BRANCH IF LESS THAN ZERO
2E	BGT	2	3	BRANCH IF GREATER THAN ZERO
2F	BLE	2	3	BRANCH IF LESS THAN OR EQUAL TO ZERO
30	TSX	1	3	TRANSFER FROM STACK POINTER TO INDEX REGISTER X
31	INS	1	3	INCREMENT STACK POINTER
32	PULA	1	4	PULL DATA FROM STACK
33	PULB	1	4	PULL DATA FROM STACK
34	DES	1	3	DECREMENT STACK POINTER
35	TXS	1	3	TRANSFER FROM INDEX REGISTER X TO STACK POINTER
36	PSHA	1	3	PUSH DATA ONTO STACK
37	PSHB	1	3	PUSH DATA ONTO STACK
38	PULX	1	5	PULL INDEX REGISTER X FROM STACK
39	RTS	1	5	RETURN FROM SUBROUTINE
3A	ABX	1	3	ADD ACCUMULATOR B TO INDEX REGISTER X
3B	RTI	1	12	RETURN FROM INTERRUPT
3C	PSHX	1	4	PUSH INDEX REGISTER X ONTO STACK
3D	MUL	1	10	MULTIPLY UNSIGNED
3E	WAI	1	14	WAIT FOR INTERRUPT
3F	SWI	1	14	SOFTWARE INTERRUPT
40	NEGA	1	2	NEGATE
43	COMA	1	2	COMPLEMENT
44	LSRA	1	2	LOGICAL SHIFT RIGHT
46	RORA	1	2	ROTATE RIGHT
47	ASRA	1	2	ARITHMETIC SHIFT RIGHT
48	ASLA / LSLA	1	2	ARITHMETIC / LOGICAL SHIFT LEFT
49	ROLA	1	2	ROTATE LEFT
4A	DECA	1	2	DECREMENT
4C	INCA	1	2	INCREMENT
4D	TSTA	1	2	TEST
4F	CLRA	1	2	CLEAR
50	NEGB	1	2	NEGATE
53	COMB	1	2	COMPLEMENT
54	LSRB	1	2	LOGICAL SHIFT RIGHT
56	RORB	1	2	ROTATE RIGHT
57	ASRB	1	2	ARITHMETIC SHIFT RIGHT
58	ASLB / LSLB	1	2	ARITHMETIC / LOGICAL SHIFT LEFT
59	ROLB	1	2	ROTATE LEFT
5A	DECB	1	2	DECREMENT
5C	INCB	1	2	INCREMENT
5D	TSTB	1	2	TEST
5F	CLRB	1	2	CLEAR
60	NEG IND,X	2	6	NEGATE
63	COM IND,X	2	6	COMPLEMENT
64	LSR IND,X	2	6	LOGICAL SHIFT RIGHT
66	ROR IND,X	2	6	ROTATE RIGHT
67	ASR IND,X	2	6	ARITHMETIC SHIFT RIGHT
68	ASL / LSL IND,X	2	6	ARITHMETIC / LOGICAL SHIFT LEFT
69	ROL IND,X	2	6	ROTATE LEFT
6A	DEC IND,X	2	6	DECREMENT
6C	INC IND,X	2	6	INCREMENT
6D	TST IND,X	2	6	TEST
6E	JMP IND,X	2	3	JUMP
6F	CLR IND,X	2	6	CLEAR
70	NEG EXT	3	6	NEGATE
73	COM EXT	3	6	COMPLEMENT
74	LSR EXT	3	6	LOGICAL SHIFT RIGHT
76	ROR EXT	3	6	ROTATE RIGHT
77	ASR EXT	3	6	ARITHMETIC SHIFT RIGHT
78	ASL / LSL EXT	3	6	ARITHMETIC / LOGICAL SHIFT LEFT
79	ROL EXT	3	6	ROTATE LEFT
7A	DEC EXT	3	6	DECREMENT
7C	INC EXT	3	6	INCREMENT
7D	TST EXT	3	6	TEST
7E	JMP EXT	3	3	JUMP
7F	CLR EXT	3	6	CLEAR
80	SUBA IMM	2	2	SUBTRACT
81	CMPA IMM	2	2	COMPARE
82	SBCA IMM	2	2	SUBTRACT WITH CARRY
83	SUBD IMM	3	4	SUBTRACT DOUBLE ACCUMULATOR
84	ANDA IMM	2	2	LOGICAL AND
85	BITA IMM	2	2	BIT TEST
86	LDAA IMM	2	2	LOAD ACCUMULATOR
87	BRSET DIR	4		BRANCH IF BIT(S) ARE SET
88	EORA IMM	2	2	EXCLUSIVE OR
89	ADCA IMM	2	2	ADD WITH CARRY
8A	ORAA IMM	2	2	INCLUSIVE OR
8B	ADDA IMM	2	2	ADD WITHOUT CARRY
8C	CPX IMM	3	4	COMPARE INDEX REGISTER X
8D	BSR	2	6	BRANCH TO SUBROUTINE
8E	LDS IMM	3	3	LOAD STACK POINTER
8F	BRCLR DIR	4		BRANCH IF BIT(S) ARE CLEAR
90	SUBA DIR	2	3	SUBTRACT
91	CMPA DIR	2	3	COMPARE
92	SBCA DIR	2	3	SUBTRACT WITH CARRY
93	SUBD DIR	2	5	SUBTRACT DOUBLE ACCUMULATOR
94	ANDA DIR	2	3	LOGICAL AND
95	BITA DIR	2	3	BIT TEST
96	LDAA DIR	2	3	LOAD ACCUMULATOR
97	STAA DIR	2	3	STORE ACCUMULATOR
98	EORA DIR	2	3	EXCLUSIVE OR
99	ADCA DIR	2	3	ADD WITH CARRY
9A	ORAA DIR	2	3	INCLUSIVE OR
9B	ADDA DIR	2	3	ADD WITHOUT CARRY
9C	CPX DIR	2	5	COMPARE INDEX REGISTER X
9D	JSR DIR	2	5	JUMP TO SUBROUTINE
9E	LDS DIR	2	4	LOAD STACK POINTER
9F	STS DIR	2	4	STORE STACK POINTER
A0	SUBA IND,X	2	4	SUBTRACT
A0 80	SUBA IND,Y	2		SUBTRACT
A1	CMPA IND,X	2	4	COMPARE
A1 80	CMPA IND,Y+	2		COMPARE WITH/Y+
A2	SBCA IND,X	2	4	SUBTRACT WITH CARRY
A2 80	SBCA IND,Y	2		SUBTRACT WITH CARRY
A3	SUBD IND,X	2	6	SUBTRACT DOUBLE ACCUMULATOR
80	SUBD IND,Y	2	6	SUBTRACT DOUBLE ACCUMULATOR
A4	ANDA IND,X	2	4	LOGICAL AND
80	ANDA IND,Y	2	4	LOGICAL AND
A5	BITA IND,X	2	4	BIT TEST
80	BITA IND,Y	2	4	BIT TEST
A6	LDAA IND,X	2	4	LOAD ACCUMULATOR
A6 80	LDAA IND,Y+	2		LOAD ACCUMULATOR WITH/Y+
A7	STAA IND,X	2	4	STORE ACCUMULATOR
A7 80	STAA IND,Y	2		STORE ACCUMULATOR
A8	EORA IND,X	2	4	EXCLUSIVE OR
80	EORA IND,Y	2	4	EXCLUSIVE OR
A9	ADCA IND,X	2	4	ADD WITH CARRY
80	ADCA IND,Y	2	4	ADD WITH CARRY
AA	ORAA IND,X	2	4	INCLUSIVE OR
80	ORAA IND,Y	2	4	INCLUSIVE OR
AB	ADDA IND,X	2	4	ADD WITHOUT CARRY
80	ADDA IND,Y	2	4	ADD WITHOUT CARRY
AC	CPX IND,X	2	6	COMPARE INDEX REGISTER X
80	CPX IND,Y	2	6	COMPARE INDEX REGISTER X
AD	JSR IND,X	2	6	JUMP TO SUBROUTINE	AD 80	JSR IND,Y	2		JUMP TO SUBROUTINE
AE	LDS IND,X	2	5	LOAD STACK POINTER
80	LDS IND,Y	2	5	LOAD STACK POINTER
AF	STS IND,X	2	5	STORE STACK POINTER
80	STS IND,Y	2	5	STORE STACK POINTER
B0	SUBA EXT	3	4	SUBTRACT
B1	CMPA EXT	3	4	COMPARE
B2	SBCA EXT	3	4	SUBTRACT WITH CARRY
B3	SUBD EXT	3	6	SUBTRACT DOUBLE ACCUMULATOR
B4	ANDA EXT	3	4	LOGICAL AND
B5	BITA EXT	3	4	BIT TEST
B6	LDAA EXT	3	4	LOAD ACCUMULATOR
B7	STAA EXT	3	4	STORE ACCUMULATOR
B8	EORA EXT	3	4	EXCLUSIVE OR
B9	ADCA EXT	3	4	ADD WITH CARRY
BA	ORAA EXT	3	4	INCLUSIVE OR
BB	ADDA EXT	3	4	ADD WITHOUT CARRY
BC	CPX EXT	3	6	COMPARE INDEX REGISTER X
BD	JSR EXT	3	6	JUMP TO SUBROUTINE
BE	LDS EXT	3	5	LOAD STACK POINTER
BF	STS EXT	3	5	STORE STACK POINTER
C0	SUBB IMM	2	2	SUBTRACT
C1	CMPB IMM	2	2	COMPARE
C2	SBCB IMM	2	2	SUBTRACT WITH CARRY
C3	ADDD IMM	3	4	ADD DOUBLE ACCUMULATOR
C4	ANDB IMM	2	2	LOGICAL AND
C5	BITB IMM	2	2	BIT TEST
C6	LDAB IMM	2	2	LOAD ACCUMULATOR
C8	EORB IMM	2	2	EXCLUSIVE OR
C9	ADCB IMM	2	2	ADD WITH CARRY
CA	ORAB IMM	2	2	INCLUSIVE OR
CB	ADDB IMM	2	2	ADD WITHOUT CARRY
CC	LDD IMM	3	3	LOAD DOUBLE ACCUMULATOR
08	INY	2	4	INCREMENT INDEX REGISTER Y
09	DEY	2	4	DECREMENT INDEX REGISTER Y
CD 1A	XGDY		2	EXCHANGE DOUBLE ACCUMULATOR AND INDEX REG Y
CD 3A	ABY		2	ADD ACCUMULATOR B TO INDEX REG Y
CD 8C	CMPY IMM, Y++	4		CMPY INDEX REGISTER Y AND INCREMENT.
CE	LDY IMM	4	4	LOAD INDEX REGISTER Y
DF	STY DIR	3	5	STORE INDEX REGISTER Y
EE	LDY IND,X	3	6	LOAD INDEX REGISTER Y
CE	LDX IMM	3	3	LOAD INDEX REGISTER X
CF	*****		3	?????
D0	SUBB DIR	2	3	SUBTRACT
D1	CMPB DIR	2	3	COMPARE
D2	SBCB DIR	2	3	SUBTRACT WITH CARRY
D3	ADDD DIR	2	5	ADD DOUBLE ACCUMULATOR
D4	ANDB DIR	2	3	LOGICAL AND
D5	BITB DIR	2	3	BIT TEST
D6	LDAB DIR	2	3	LOAD ACCUMULATOR
D7	STAB DIR	2	3	STORE ACCUMULATOR
D8	EORB DIR	2	3	EXCLUSIVE OR
D9	ADCB DIR	2	3	ADD WITH CARRY
DA	ORAB DIR	2	3	INCLUSIVE OR
DB	ADDB DIR	2	3	ADD WITHOUT CARRY
DC	LDD DIR	2	4	LOAD DOUBLE ACCUMULATOR
DD	STD DIR	2	4	STORE DOUBLE ACCUMULATOR
DE	LDX DIR	2	4	LOAD INDEX REGISTER X
DF	STX DIR	2	4	STORE INDEX REGISTER X
E0	SUBB IND,X	2	4	SUBTRACT
80	SUBB IND,Y	2	4	SUBTRACT
E1	CMPB IND,X	2	4	COMPARE
80	CMPB IND,Y	2	4	COMPARE
E2	SBCB IND,X	2	4	SUBTRACT WITH CARRY
80	SBCB IND,Y	2	4	SUBTRACT WITH CARRY
E3	ADDD IND,X	2	6	ADD DOUBLE ACCUMULATOR
80	ADDD IND,Y	2	6	ADD DOUBLE ACCUMULATOR
E4	ANDB IND,X	2	4	LOGICAL AND
80	ANDB IND,Y	2	4	LOGICAL AND
E5	BITB IND,X	2	4	BIT TEST
80	BITB IND,Y	2	4	BIT TEST
E6	LDAB IND,X	2	4	LOAD ACCUMULATOR
80	LDAB IND,Y	2	4	LOAD ACCUMULATOR
E7	STAB IND,X	2	4	STORE ACCUMULATOR
80	STAB IND,Y	2	4	STORE ACCUMULATOR
E8	EORB IND,X	2	4	EXCLUSIVE OR
80	EORB IND,Y	2	4	EXCLUSIVE OR
E9	ADCB IND,X	2	4	ADD WITH CARRY
80	ADCB IND,Y	2	4	ADD WITH CARRY
EA	ORAB IND,X	2	4	INCLUSIVE OR
80	ORAB IND,Y	2	4	INCLUSIVE OR
EB	ADDB IND,X	2	4	ADD WITHOUT CARRY
80	ADDB IND,Y	2	4	ADD WITHOUT CARRY
EC	LDD IND,X	2	5	LOAD DOUBLE ACCUMULATOR
80	LDD IND,Y	2	5	LOAD DOUBLE ACCUMULATOR
ED	STD IND,X	2	5	STORE DOUBLE ACCUMULATOR
80	STD IND,Y	2	5	STORE DOUBLE ACCUMULATOR
EE	LDX IND,X	2	5	LOAD INDEX REGISTER X
80	LDX IND,Y++	2	5	LOAD INDEX REGISTER X WITH/Y++
EF	STX IND,X	2	5	STORE INDEX REGISTER X
80	STX IND,X	2	5	STORE INDEX REGISTER X
F0	SUBB EXT	3	4	SUBTRACT
F1	CMPB EXT	3	4	COMPARE
F2	SBCB EXT	3	4	SUBTRACT WITH CARRY
F3	ADDD EXT	3	6	ADD DOUBLE ACCUMULATOR
F4	ANDB EXT	3	4	LOGICAL AND
F5	BITB EXT	3	4	BIT TEST
F6	LDAB EXT	3	4	LOAD ACCUMULATOR
F7	STAB EXT	3	4	STORE ACCUMULATOR
F8	EORB EXT	3	4	EXCLUSIVE OR
F9	ADCB EXT	3	4	ADD WITH CARRY
FA	ORAB EXT	3	4	INCLUSIVE OR
FB	ADDB EXT	3	4	ADD WITHOUT CARRY
FC	LDD EXT	3	5	LOAD DOUBLE ACCUMULATOR
FD	STD EXT	3	5	STORE DOUBLE ACCUMULATOR
FE	LDX EXT	3	5	LOAD INDEX REGISTER X
FF	STX EXT	3	5	STORE INDEX REGISTER X