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TXA
T
RANSFER INDEX REGISTER
(A) ← (X)
Op e r a t io n :
F u n c t io n :
This instruction stores the contents of X in A.
St a t u s fla g :
N :
V:
T:
B:
I:
D:
Z:
C:
Addressing mode
∆TXA
Implied
98
N is 1 when bit 7 is 1 after the operation; otherwise N is
0.
No change
No change
No change
No change
No change
Z is 1 when the operation result is 0; otherwise Z is 0.
No change
Statement
X
A
TO
CCUMULATOR
Machine codes
Byte number
8A
16
TXA
Cycle number
1
2
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