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PD780C Datasheet(PDF) 20 Page - NEC

Part # PD780C
Description  HIGH·PERFORMANCE CP/M® ·COMPATIBLE NMOS 8·BIT MICROPROCESSOR
PDF  24 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

PD780C Datasheet(HTML) 20 Page - NEC

Back Button PD780C Datasheet HTML 16Page - NEC PD780C Datasheet HTML 17Page - NEC PD780C Datasheet HTML 18Page - NEC PD780C Datasheet HTML 19Page - NEC PD780C Datasheet HTML 20Page - NEC PD780C Datasheet HTML 21Page - NEC PD780C Datasheet HTML 22Page - NEC PD780C Datasheet HTML 23Page - NEC PD780C Datasheet HTML 24Page - NEC  
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Instruction Set (cont,
Mnemunlc
POP IX
POP IV
POP qq
PUSH IX
PUSH IV
PUSH qq
Operation
IXH � (SP +
1)
IXl � (SP)
IVH �(SP +l)
IVl � (SP)
qqH � (SP +
1)
qql � (SP)
(SP -
2)� IXl
(SP -
1)
�
IXH
(SP - 2) � IVl
(SP -
1)
+-
IVH
(SP -
2) � qql
(SP -
1) �qqH
RES b,r
Sb �
0
RES b, (HL)
Sb �
0, (HL)
RES b, (IX + d) Sb � 0 (IX + d)
RES b, (IV + d) Sb
�
0, (IV + d)
RET
PCl � (SP)
RET cc
RETI
RETN
RL r
RL (HL)
PCH � (SP +
1)
If condition cc is false
cont. else (PCl
�
(SP)
PCH � (SP +
1)
Oescrlption
load IX with top of stack
load IV with top of stack
Load Reg. pair qq with top of stack
load IX onto stack
Load IV onto stack
load Reg. pair qq onto stack
Reset Bit b of Reg. r
Reset Bit b of loe. (HL)
Reset Bit b of loc. (IX + d)
Reset Bit b of loc. (IV + d)
Return from subroutine
Return from subroutine if condition
cc is true
Return from interrupt
Return from non-maskable interrupt
Rotate left through carry Reg. r
Rotate left through carry loc. (HL)
Operation Code
765 • 3 2 1 0
o
1 1 1 0
1 0 0 0 0
1 1 1 a
o
0 a a
q q a a
0 1 (G)
o
1 1
1 0 0
1 1
a a
q q
0
o
o
o
o
o
(G)
1 0 0 1 0
1 (6)
o
b b b r r r (E)
10010
1
Obbb l
0
11 01 1 101
11 001 011
d d d d d d d d
l Ob b b 1 10
11111 10 1
110 01 01 1
d d d d d d d d
10 bb bll0
o a
1 a a
No. of
No. of
Cloclal
Bylas
14
2
14
2
10
15
2
15
2
11
8
2
15
2
23
4
23
4
10
�
cc
-
a a a (H)
5 if CC false
11 if CC true
1
o
1
o
1 a
o
0
1 0 1
o
0 0
o
o
o
o
1 1 0 0 1 0
1 (6)
000 lOr r r
110 010
1
00 0101
a
14
2
14
2
2
2
4
2
c
•
•
•
Flags
Z
PlY
S
• • •
• • •
• • •
N
H
• •
• •
• •
• • • • • •
• • • • • •
• • • • • •
• • • • • •
• • • • • •
• • • • • •
• • • • • •
• • • • • •
• • • • • •
• • • • • •
• • • • • •
P
p
o
0
a
0
1::
'U
a
....
CD
o
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