GMS81508A Datasheet, PDF (74/91 Pages) Hynix Semiconductor – USERS MANUAL

GMS81508/16
NO.
MNEMONIC
27 STX dp
28 STX dp + Y
29 STX !abs
30 STY dp
31 STY dp + X
32 STY !abs
33 TAX
34 TAY
35 TSPX
36 TXA
37 TXSP
38 TYA
39 XAX
40 XAY
41 XMA dp
42 XMA dp+X
43 XMA {X}
44 XYX
CODE NO NO
OPERATION
NVGBHIZC
EC 2
4
Store X-register contents in memoy
ED 2
5
(M) X
--------
FC 3
5
E9
2
4
Store Y-register contents in memoy
F9
2
5
(M) Y
--------
F8
3
5
E8
1
2
Transfer accumulator contents to X-register : X N-----Z-
A
9F
1
2
Transfer accumulator contents to Y-register : Y A N-----Z-
AE 1
2
Transfer stack-pointer contents to X-register : X N-----Z-
sp
C8
1
2
Transfer X-register contents to accumulator: A X N-----Z-
8E
1
2
Transfer X-register contents to stack-pointer: sp X N-----Z-
BF
1
EE 1
DE 1
2
Transfer Y-register contents to accumulator: A Y N-----Z-
4
 Exchange X-register contents with accumulator :X ^--------
A
4
 Exchange Y-register contents with accumulator :Y ^--------
A
BC 2
AD 2
5
Exchange memory contents with accumulator
6
 ( M ) A
N-----Z-
BB 1
FE
1
5
4
 Exchange X-register contents with Y-register : X --------
Y
3. 16-BIT OPERATION
NO.
MNEMONIC
1 ADDW dp
2 CMPW dp
3 DECW dp
4 INCW dp
5 LDYA dp
6 STYA dp
7 SUBW dp
OP BYTE CYCLE
CODE NO NO
OPERATION
1D 2
5
^{16-Bits add without carry}
YA ( YA ) ( dp +1 ) ( dp )
5D 2
4
 ^{Compare YA contents with memory pair contents :}
(YA) (dp+1)(dp)
BD 2
6
 ^{Decrement memory pair}
( dp+1)( dp) ( dp+1) ( dp) 1
9D 2
6
^{Increment memory pair}
( dp+1) ( dp) ( dp+1) ( dp ) 1
7D 2
5 Load YA
YA ( dp +1 ) ( dp )
DD 2
5 Store YA
( dp +1 ) ( dp ) YA
3D 2
5
 ^{16-Bits substact without carry}
YA ( YA ) ( dp +1) ( dp)
FLAG
NVGBHIZC
NV--H-ZC
N-----ZC
N-----Z-
N-----Z-
N-----Z-
--------
NV--H-ZC
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