Intel MCS48 User Manual page 175

M8048/M8748/M8035
INSTRUCTION SET
Description
Bytes Cycle Description
Bytes Cycles
ADD
A,
R Add
register to
A
ADD
A,
@R
Add
data
memory
to
A
ADD
A.
#data
Add
immediate
to
A
ADDC
A,
R Add
register with carry
ADDC
A,
@R
Add
data
memory
with carry
ADDC
A,
#data
Add immediate
with carry
ANL
A,
R
And
register to
A
ANL
A,
@R
And
data
memory
to
A
ANL
A.
#data
And immediate
to
A
ORL
A,
R Or
register to
A
o
ORL
A,
@R
Or
data
memory
to
A
3
E
3
o
o
<
ORL
A.
#data
Or immediate
to
A
2
XRL
A,
R
Exclusive or register to
A
XRL
A,
@R
Exclusive or data
memory
to
A
XRL
A.
#data Exclusive or immediate
to
A
2
INC A
Increment
A
DEC A
Decrement
A
CLR A
Clear
A
CPL A Complement A
DA A
Decimal
adjust
A
SWAP
A Swap
nibbles
of
A
RL A
Rotate
A
left
RLC A
Rotate
A
left
through carry
RR A
Rotate
A
right
RRC A
Rotate
A
right
through
carry
IN
A,
P
Input port
to
A
2
OUTL
P,
A
Output
A
to port 2
ANL
P,
#data
And
immediate
to port 2 2
ORL
P.
#data
Or immediate
to port 2 2
3
INS
A,
BUS
Input
BUS
to
A
2
3
o
OUTL
BUS,
A
Output
A
to
BUS
2
ANL
BUS,
#data
And immediate
to
BUS
2 2
a
ORL
BUS.
#data Or immediate
to
BUS
2 2
—
MOVD
A,
P
Input
expander
port
to
A
2
MOVD
P,
A
Output
A
to
expander
port 2
ANLD
P,
A And A
to
expander
port 2
ORLD
P,
A
Or A
to
expander
port 2
M
INCR
Increment
register
1
•
INC@R
Increment data
memory
1
at
DEC
R Decrement
register
1
JMPaddr
Jump
unconditional
2 2
JMPP@A
Jump
indirect
1
2
DJNZ
R,
addr Decrement
register
and
skip 2 2
JC addr
Jump
on
carry
=
1
2 2
JNC
addr
Jump
on
carry
=
2 2
JZaddr Jump
on
A
zero
2
2
JNZ
addr
Jump
on
A
not zero
2 2
u
c
JTO addr
Jump
on T0
=
1
2 2
m
JNTO
addr
Jump
on T0
=
2
2
JT1 addr
Jump
on T1
=
1
2 2
JNT1 addr
Jump
on T1
=0
2 2
JFO addr
Jump
on
F0
=
1
2 2
JF1 addr
Jump
on
F1
=
1
2 2
JTF
addr
Jump
on
timer
flag
2 2
JNI
addr Jump
on INT
=
2 2
JBb addr
Jump
on accumulator
bit
2
2
c
CALL Jump
to
subroutine 2
f
ji
o
RET
Return
1
2
'*%
a
3
(A
RETR
Return
and
restore status
1
2
CLR C
Clear carry
CPL C Complement
carry
O)
CLR
FO Clear
flag
C CPL
FO
Complement
flag
CLR
F1 Clear
flag
1
CPL
F1
Complement
flag
1
MOV
A,
R
Move
register to
A
MOV
A,
@R
Move
data
memory
to
a
MOV
A,
#data
Move immediate
to
A
<
2
2
MOV
R,
A Move
A
to register
MOV
@R, A Move A
to data
memory
MOV
R,
#data
Move immediate
to register
2
2
01
>
MOV
@R,
#data
Move
immediate
to
data
memory
< 2
2
S
MOV
A,
PSW
Move
PSW
to
A
s
MOV
PSW, A Move A
to
PSW
a
XCH
A,
R Exchange
A
and
register
XCHA,
@R
Exchange A
and data
memory
XCHD
A,
@R
Exchange
nibble of
A
and
register
MOVX
A,
@R
Move
external data
memory
to
A
2
MOVX
@R, A Move A
to external data
memory
2
MOVP
A,
@A
Move
to
A
from
current
page
2
MOVP3
A,
@A
Move
to
A
from page 3
2
MOV
A,
T
Read timer/counter
a
MOV
T,
A
Load timer/counter
c
3
O
u
STRTT
Start timer
STRT
CNT
Start
counter
01
E
i=
STOP TCNT
Stop timer/counter
EN TCNTI
Enable timer/counter
interrupt
DIS
TCNTI
Disable timer/counter interrupt
EN
I
Enable external interrupt
DIS
I
Disable external
interrupt
o
SEL RBO
Select register
bank
c
SEL RB1
Select
register
bank
1
o
SEL MBO
Select
memory
bank
SEL MB1
Select
memory
bank
1
ENTO CLK
Enable clock output on
TO
No
operation
Mnemonics
copyright
Intel
Corporation 1978
6-23