Intel mcs-48 manual Mnemonic for in-page Operation, Analog Input 0, Analog Input Timer, Cnt

8022~1Rl[gI!..O~OOO~IRlW

INSTRUCTION SET

Mnemonic		Byte.	Hexadecimal
	Description		Cycle Opcode
ADD A,R,	Add ,egiste, to A		S8-6F
ADD A,@R	Add data memo,y to A		60-61
ADD A,#data	Add immediate to A	2	03
ADDC A_R,	Add register with carry		78-7F
ADDCA,@R	Add data memory with		70-71
	carty

Mnemonic		Bytes	Cycle	Hexadecimal
	Description			Opcode
JTOadd,	Jump on TO=1	2	2	36
JNTOadd,	Jump on TO=O	2	2	26
JT1 add,	Jump on Tl= 1	2	2	56
JNT1 add,	Jump on Tl=O	2	2	46
JTF add,	Jump on time'flag	2	2	16

ADDC A,#data Add immediate with	2	2 13
carry

~• CALL add,

Jump to subroutine

2 14,34,54,74

ANL A,R,

ANL A,@R ANL A,#data ORL A,R, ORLA,@R ORl A,#data

i XRl A,R,

E

u~ XRL A,@R u

c

XRL A,#data

INC A

And ,egiste, to A			58-5F
And data memory to A			50-51
And immediate to A	2	2	53
Or register to A	1		48-4F
Or data memory to A	1		40-41
Or immediate to A	2	2	43
Exclusive Or register			D8-DF
to A
Exclusive Or data			DO-Dl
memory to A
Exclusive Or immediate	2	2	D3
to A
Increment A			17

!!

Z>~ RET

'"

CLR C f!'". CPL C

MOVA,R,

MOVA,@R MOV A,#data

MOV R"A

MOV@R,A

•.. MOV R,,#data

Return

Clear carry

Complement carry

Move register to A

Move data memory to A

Move immediate to A Move A to register

Move A to data memory Move immediate to

register

94,B4,D4,F4

.1 2 83

97

A7

F8-FF

FO-Fl

2 2 23

A8-AF

AO-Al

2 2 B8-BF

DEC A

CLR A

CPL A

DAA

SWAP A

RL A

RLCA

RRA

RRCA

IN A, Pp

;;OUTL Pp.A S MOVD A,Pp

~

~

Decrement A			07
Clea'A			27
Complement A	1		37
Decimal adjust A	1		57
Swap nibbles of A			47
Rotate A left			E7
Rotate A left th,ough			F7
carry
Rotate A ,ight			77
Rotate A ,ight th,ough			67
carry
Input po,t to A		2	08,09,OA
Output A to po,t		2	90,39,3A
Input expander port			OC-OF
to A

:Iis MOII@R,#data

~ XCHA,R,

Q

XCH A,@R

XCHDa,@R

,MOVPA,@AMOVA,T

~MOVT,A

0

~ STRTT

i	STRTCNT
~	STOP TCNT

Move immediate to	2	2	BO-Bl
data memory
Exchange A and			28-2F
register
Exchange A and data			20-21
memory
Exchange nibble of A			30-31
and register
Move to A from current		2	A3
page
Read timer I counter			42
Load timer I counter			62
Start timer			65
Start counter			46
Stop timer I counter			66

;; MOVD Pp,A

=ANlD Pp,A

ORlD Pp,AD.

I!

ZINC R, -•ij.INC@R II:

JMP add,

JMPP@A

.c

u DJNZ R,add, c

£JC add, JNC add, JZ add, JNZ add,

Output A to expander

port

And A to expande, port

Or A to expander port

Increment register Increment data memory

Jump unconditional

Jump indirect Decrement register and

jump on R not zero Jump on carry= 1 Jump on carry=O Jump on A zero Jump on A not zero

		3C-3F
	2	9C-9F
	2	8C-8F
		18-1F
		10-11
	2	04,24,44,64,
		84,A4,C4,E4
	2	B3
	2	ES-EF
2	2	F6
2	2	E6
	2	C6
	2	96

i RAD

1::

•

>

c0 SEl AND u

c~ SEL AN1

EN I

.. DIS I

aE EN TCNTI

i DIS TCNTI

RET I

NOP

Move conversion result	2	80
register to A
Select analog input		85
zero
Select analog input one		95
Enable external		05
interrupt
Disable external		15
interrupt
Enable timer I counter		25
interrupt
Disable timer I counter		35
interrupt
Return from interrupt	2	93
No operation		00

SYMBOLS AND ABBREVIATIONS USED

		P	Mnemonic for "in-page" Operation
A	Accumulator	Pp	Port Designator (P=O, 1,2 or 4-7)
addr	11-Bit Program Memory Address	Rr	Register Designator (r=0-7)
ANO,AN1	Analog Input 0, Analog Input 1	T	Timer
CNT	Event Counter	TO, T1	Test 0, Test 1
data	8-Bit Number or Expression	#	Immediate Data Prefix
I	Interrupt	@	Indirect Address Prefix

6-56 AFN-ocJ187A-08