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171
EXPLANATIONCYCLEBYTEHEX
INSTRUCTION CODE
MNEMONIC EXPLANATIONCYCLEBYTEHEX
D
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
MNEMONIC
MOV direct,
#data
0
a
7
d
7
1
a
6
d
6
1
a
5
d
5
1
a
4
d
4
0
a
3
d
3
1
a
2
d
2
0
a
1
d
1
1
a
0
d
0
75
Byte 2
Byte 3
3 2 (direct) = #data
MOV @Ri, A 1 1 1 1 0 1 1 i F6–F7 1 1 ((Ri)) = A
MOV @Ri,
direct
1
a
7
0
a
6
1
a
5
0
a
4
0
a
3
1
a
2
1
a
1
i
a
0
A6–A7
Byte 2
2 2 ((Ri)) = (direct)
MOV @Ri,
#data
0
d
7
1
d
6
1
d
5
1
d
4
0
d
3
1
d
2
1
d1
i
d
0
76–77
Byte 2
2 1 ((Ri)) = #data
MOV DPTR,
#data16
1
d
7
d
7
0
d
6
d
6
0
d
5
d
5
1
d4
d
4
0
d
3
d
3
0
d
2
d
2
0
d
1
d
1
0
d
0
d
0
90
Byte 2
Byte 3
3 2 (DPTR) = #data
15–0
(DPH) = #data
15–8
(DPL) = #data
7–0
R
MOVC A, @A
+ DPTR
1 0 0 1 0 0 1 1 93 1 2 (A)=((A) + (DPTR))
A
NSFER
MOVC A, @A
+ PC
1 0 0 0 0 0 1 1 83 1 2 (A) = ((A) + (PC))
TRA
N
MOVX A, @Ri 1 1 1 0 0 0 1 i E2–E3 1 2 (A) = ((Ri))
DATA
T
MOVX
@DPTR
1 1 1 0 0 0 0 0 E0 1 2 (A) = ((DPTR))
MOVX @Ri, A 1 1 1 1 0 0 1 i F2–F3 1 2 ((Ri)) = (A)
MOVX
@DPTR,A
1 1 1 1 0 0 0 0 F0 1 2 ((DPTR)) = (A)
PUSH direct 1
a
7
1
a
6
0
a
5
0
a
4
0
a
3
0
a
2
0
a
1
0
a
0
C0
Byte 2
2 2 (SP) = (SP) + 1
((SP)) = (direct)
POP direct 1
a
7
1
a
6
0
a
5
1
a
4
0
a
3
0
a
2
0
a
1
0
a
0
D0
Byte 2
2 2 (direct) = ((SP))
(SP) = (SP) – 1
XCH A, Rn 1 1 0 0 1 n
2
n
1
n
0
C8–CF 1 1 (A) = (Rn)
XCH A, direct 1
a
7
1
a
6
0
a
5
0
a
4
0
a
3
1
a
2
0
a
1
1
a
0
C5
Byte 2
2 1 (A) = (direct)
XCH A, @Ri 1 1 0 0 0 1 1 i C6–C7 1 1 (A) = ((Ri))
XCHD A, @Ri 1 1 0 1 0 1 1 i D6–D7 1 1 (A
3-0
) = ((Ri
3–0
))