GMS81508A Datasheet, PDF (73/91 Pages) Hynix Semiconductor – USERS MANUAL

NO.
MNEMONIC
80 SBC #imm
81 SBC dp
82 SBC dp + X
83 SBC !abs
84 SBC !abs + Y
85 SBC [ dp + X ]
86 SBC [ dp ] + Y
87 SBC { X }
88 TST dp
89 XCN
OP BYTE CYCLE
CODE NO NO
OPERATION
24
2
25
2
2
Substract with carry
3
  A ( A ) ( M )
(C)
26
2
4
27
3
4
35
3
5
36
2
6
37
2
34
1
4C 2
CE 1
6
3
3
 ^{Test memory contents for negative or zero}
( dp ) 00_H
5
 ^{Exchange nibbles within the accumulator}
A₇∼A₄ A₃∼A0
2. REGISTER / MEMORY OPERATION
FLAG
NVGBHIZC
NV--HZC
N-----Z-
N-----Z-
NO.
MNEMONIC
1 LDA #imm
2 LDA dp
3 LDA dp + X
4 LDA !abs
5 LDA !abs + Y
6 LDA [ dp + X ]
7 LDA [ dp ] + Y
8 LDA { X }
9 LDA { X }+
10 LDM dp,#imm
11 LDX #imm
12 LDX dp
13 LDX dp + Y
14 LDX !abs
15 LDY #imm
16 LDY dp
17 LDY dp + X
18 LDY !abs
19 STA dp
20 STA dp + X
21 STA !abs
22 STA !abs + Y
23 STA [ dp + X ]
24 STA [ dp ] + Y
25 STA { X }
26 STA { X }+
OP BYTE CYCLE
CODE NO NO
OPERATION
FLAG
NVGBHIZC
C4
2
C5
2
2
Load accumulator
3
A (M)
C6
2
4
C7
3
4
D5
3
5
D6
2
6
N-----Z-
D7
2
6
D4
1
DB
1
3
4
X- register auto-increment : A ( M ) , X X 1
E4
3
5
Load memory with immediate data : ( M ) imm --------
1E
2
2
Load X-register
CC
2
3
X (M)
N-----Z-
CD
2
4
DC
3
4
3E
2
2
Load Y-register
C9
2
3
Y (M)
N-----Z-
D9
2
D8
3
E5
2
4
4
3
Store accumulator contents in memoy
E6
2
4
(M) A
E7
3
4
F5
3
5
F6
2
6
--------
F7
2
6
F4
1
FB
1
3
4
X- register auto-increment : ( M ) A, X X 1
OP BYTE CYCLE
68
FLAG