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EM785830AA
8-bit Micro-controller
__________________________________________________________________________________________________________________________________________________________________
* This specification is subject to be changed without notice.
12/1/2004 V1.6
VII.8 Instruction Set
Instruction set has the following features:
(1) Every bit of any register can be set, cleared, or tested directly.
(2) The I/O register can be regarded as general register. That is, the same instruction can operates on I/O
register.
The symbol "R" represents a register designator which specifies which one of the 64 registers (including
operational registers and general purpose registers) is to be utilized by the instruction. Bits 6 and 7 in R4
determine the selected register bank. "b'' represents a bit field designator which selects the number of the bit,
located in the register "R'', affected by the operation. "k'' represents an 8 or 10-bit constant or literal value.
INSTRUCTION BINARY
HEX
0000
0001
0002
0003
0004
000r
0010
0011
0012
0013
MNEMONIC
NOP
DAA
CONTW
SLEP
WDTC
IOW R
ENI
DISI
RET
RETI
OPERATION
No Operation
Decimal Adjust A
A
→
CONT
0
→
WDT, Stop oscillator
0
→
WDT
A
→
IOCR
Enable Interrupt
Disable Interrupt
[Top of Stack]
→
PC
[Top of Stack]
→
PC
Enable Interrupt
CONT
→
A
IOCR
→
A
R2+A
→
R2 bits 9,10 do not
clear
A
→
R
0
→
A
0
→
R
R-A
→
A
R-A
→
R
R-1
→
A
R-1
→
R
A
∨
R
→
A
A
∨
R
→
R
A & R
→
A
A & R
→
R
A
⊕
R
→
A
A
⊕
R
→
R
A + R
→
A
A + R
→
R
R
→
A
R
→
R
/R
→
A
STATUS
AFFECTED
None
C
None
T,P
T,P
None
None
None
None
None
Instruction
cycle
1
1
1
1
1
1
1
1
2
2
0 0000 0000 0000
0 0000 0000 0001
0 0000 0000 0010
0 0000 0000 0011
0 0000 0000 0100
0 0000 0000 rrrr
0 0000 0001 0000
0 0000 0001 0001
0 0000 0001 0010
0 0000 0001 0011
0 0000 0001 0100
0 0000 0001 rrrr
0 0000 0010 0000
0014
001r
0020
CONTR
IOR R
TBL
None
None
Z,C,DC
1
1
2
0 0000 01rr rrrr
0 0000 1000 0000
0 0000 11rr rrrr
0 0001 00rr rrrr
0 0001 01rr rrrr
0 0001 10rr rrrr
0 0001 11rr rrrr
0 0010 00rr rrrr
0 0010 01rr rrrr
0 0010 10rr rrrr
0 0010 11rr rrrr
0 0011 00rr rrrr
0 0011 01rr rrrr
0 0011 10rr rrrr
0 0011 11rr rrrr
0 0100 00rr rrrr
0 0100 01rr rrrr
0 0100 10rr rrrr
00rr
0080
00rr
01rr
01rr
01rr
01rr
02rr
02rr
02rr
02rr
03rr
03rr
03rr
03rr
04rr
04rr
04rr
MOV R,A
CLRA
CLR R
SUB A,R
SUB R,A
DECA R
DEC R
OR A,R
OR R,A
AND A,R
AND R,A
XOR A,R
XOR R,A
ADD A,R
ADD R,A
MOV A,R
MOV R,R
COMA R
None
Z
Z
Z,C,DC
Z,C,DC
Z
Z
Z
Z
Z
Z
Z
Z
Z,C,DC
Z,C,DC
Z
Z
Z
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1