MC81F4x16
FLAG
OP
CODE
BYTE
NO
CYCLE
NO
NO.
MNEMONIC
OPERATION
NVGBHIZC
27
28
29
30
31
32
STX dp
EC
ED
FC
E9
F9
F8
2
2
3
2
2
3
4
5
5
4
5
5
Store X-register contents in memory
STX dp + Y
STX !abs
STY dp
--------
--------
( M ) X
Store Y-register contents in memory
STY dp + X
STY !abs
( M ) Y
Transfer accumulator contents to X-register :
X A
33
34
35
36
37
38
39
40
TAX
TAY
TSPX
TXA
E8
9F
AE
C8
8E
BF
EE
DE
1
1
1
1
1
1
1
1
2
2
2
2
2
2
4
4
N-----Z-
N-----Z-
N-----Z-
N-----Z-
N-----Z-
N-----Z-
--------
Transfer accumulator contents to Y-register :
Y A
Transfer stack-pointer contents to X-register :
X sp
Transfer X-register contents to accumulator :
A X
Transfer X-register contents to stack-pointer :
sp X
TXSP
TYA
XAX
XAY
Transfer Y-register contents to accumulator :
A Y
Exchange X-register contents with accumulator :
X A
Exchange Y-register contents with accumulator :
Y A
--------
41
42
43
XMA dp
BC
AD
BB
2
2
1
5
6
5
Exchange memory contents with accumulator :
( M ) A
XMA dp + X
XMA {X}
N-----Z-
--------
Exchange X-register contents with Y-register :
X Y
44
XYX
FE
1
4
194
October 19, 2009 Ver.1.35
FINECHIPS [ FINECHIPS ]
