HYUNDAI Micro Electronics
GMS800 Series
B.3 Instruction Set
Arithmetic / Logic Operation
Op
Byte
No
Cycle
No
Flag
NVGBHIZC
No.
Mnemonic
Operation
Code
04
05
06
07
15
16
17
14
84
85
86
87
95
96
97
94
08
09
19
18
44
45
46
47
55
56
57
54
5E
6C
7C
7E
8C
9C
2C
DF
CF
A8
A9
B9
B8
AF
BE
1
ADC #imm
2
2
2
3
3
2
2
1
2
2
2
3
3
2
2
1
1
2
2
3
2
2
2
3
3
2
2
1
2
2
3
2
2
3
2
1
1
1
2
2
3
1
1
2
3
4
4
5
6
6
3
2
3
4
4
5
6
6
3
2
4
5
5
2
3
4
4
5
6
6
3
2
3
4
2
3
4
4
3
3
2
4
5
5
2
2
Add with carry.
A ( A ) + ( M ) + C
←
2
ADC dp
3
ADC dp + X
ADC !abs
ADC !abs + Y
ADC [ dp + X ]
ADC [ dp ] + Y
ADC { X }
AND #imm
AND dp
4
NV--H-ZC
5
6
7
8
9
Logical AND
( A ) ( M )
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
A
←
AND dp + X
AND !abs
AND !abs + Y
AND [ dp + X ]
AND [ dp ] + Y
AND { X }
ASL A
N-----Z-
N-----ZC
Arithmetic shift left
ASL dp
C
7
6 5 4 3 2 1 0
“0”
←
←
← ← ← ← ← ← ← ←
ASL dp + X
ASL !abs
CMP #imm
CMP dp
CMP dp + X
CMP !abs
CMP !abs + Y
CMP [ dp + X ]
CMP [ dp ] + Y
CMP { X }
CMPX #imm
CMPX dp
CMPX !abs
CMPY #imm
CMPY dp
CMPY !abs
COM dp
N-----ZC
Compare accumulator contents with memory contents
( A ) - ( M )
Compare X contents with memory contents
( X ) - ( M )
N-----ZC
N-----ZC
Compare Y contents with memory contents
( Y ) - ( M )
1’S Complement : ( dp )
~( dp )
←
N-----Z-
N-----ZC
N-----ZC
N-----Z-
N-----Z-
N-----Z-
N-----Z-
N-----Z-
N-----Z-
DAA
Decimal adjust for addition
DAS
Decimal adjust for subtraction
Decrement
DEC A
DEC dp
M
( M ) - 1
←
DEC dp + X
DEC !abs
DEC X
DEC Y
MAR. 2000
v
HYNIX [ HYNIX SEMICONDUCTOR ]
