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PD780 数据表(PDF) 13 Page - NEC

部件名 PD780
功能描述  HIGH·PERFORMANCE CP/M® ·COMPATIBLE NMOS 8·BIT MICROPROCESSOR
PDF  24 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  NEC [NEC]
网页  http://www.nec.com/
标志 NEC - NEC

PD780 数据表(HTML) 13 Page - NEC

Back Button PD780 Datasheet HTML 9Page - NEC PD780 Datasheet HTML 10Page - NEC PD780 Datasheet HTML 11Page - NEC PD780 Datasheet HTML 12Page - NEC PD780 Datasheet HTML 13Page - NEC PD780 Datasheet HTML 14Page - NEC PD780 Datasheet HTML 15Page - NEC PD780 Datasheet HTML 16Page - NEC PD780 Datasheet HTML 17Page - NEC Next Button
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background image
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(j1
Instruction Set (cont)
Mnemonic
C
PIR
CP L
DAA
DEC
r
DEC
(HL)
DEC
(IX +
d)
DEC
IIV +
d)
DECIX
DEC
IV
DEC
55
DI
DJNZ,
e
EI
EX
ISP
), HL
EX
(S
P) ,IX
EX (S
P ), IV
EX
AF
, AF '
EX
DE, HL
EXX
HA LT
Operation
A - (HL)
HL
� HL
+ 1
8C � BC- 1
until
A
=
(HL
)
or
8C
=
0
A� A
r �
r- 1
(HL)� (HL)- 1
(IX +
d) � (IX +
d)
-
1
(IV +
d) � (IV +
d)-1
IX
� IX- 1
IV - IV - 1
ss �
ss- 1
IFF- 0
8+-8- 1iI8=0
continue il8
'" 0, PC
+-
PC+
e
IFF+- 1
H
- (S
P + 1) , L
.. (S
P)
IXH ..
(SP + 1)
IXL" (S
P)
IVH - (S
P + 1)
IVL - (S
P)
AF - AF '
DE
- HL
8C
- 8C'
DE
- DE',HL
- Hl'
Processo
r Ha lted
Description
Comp
are loc
a tion
(HL)and
ACC,
increment HL
,
dec
rement
8C
Repe
a t until
8C
=
C
Complement
ACC
(1
's comp,)
Decim
a l
adjust
ACC
Dec
rementReg. r
Decrement loc. (HL
)
Decrement loc. (IX +
d)
Dec
rement loc. (IV +
d)
Dec
rementIX
Dec
rement
IV
Dec
rement
Reg.
pa ir ss
Dis
a ble inter
r upts
Dec
rement
8
and
jump
relative
if 8
=
0
Enableinterrupts
Exch
ange the loc
ation
(S
P)andHL
Exchange thelocation
(S
P)and
IX
Exch
ange the loc
a tion
(S
P)
and
IV
Exch
a nge the contents of AF,AF'
Exchange the contents
01 DE
andHL
Exchange the contents
01BC, DE,HL
with contents
01BC'
, DE', Hl', respectivel
y
HA LT (w
ait
lor interrupt or
reset)
Ope ration Code
7 6 5 4 3 2 1 0
1
0 110
o
10 0 0
o 0 10 1
o 0 1 0 0
1
1
o 0 r r
r
OIlS)
001
1010
11 011101
001
10 101
d d d d d d d d
1111
11 01
001
1010 1
d d d d d d d d
1
1 0 1
o 0 1 0
1 1
1
00
0
1 0
o 1
1 0
o 1
o 0
s s
o 1 1(A)
1
11
o 0 1
o 0 0
o 0 0 0
-
e-2-
o
1 0 0 0 1
o 1 1 1 0
1 0 0 0 1
1
o
1
1
o 0
o
1
o 0 0 0
o 0 0
o 1 0
o 1 1 0 0
o
o
o
No.
01 No. 01
Clocks
Bytes
21
il 8C
=
0
2
and
M( HL)
16 i1BC=0
or A=(HL
)
4
4
4
11
23
3
23
3
10
2
10
2
6
4
8
2
4
19
23
2
23
2
4
4
4
4
Flags
C
Z
P/V
5
•
t(2) t(1) t
• • • •
P
•
V
•
V
•
V
•
V
N
H
•
• • • • • •
• • • • • •
• • • • • •
• • • • • •
• • • • • •
• • • • • •
• • • • • •
• • • • • •
• • • • • •
• • • • • •
• • • • • •
• • • • • •
• • • • • •
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'l:::
"
Sf
CD
o



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