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98
Appendix A: Errors and Flags
Functions That Affect Flags
Two important flags, the carry flag (4) and the out-of-range flag (5),
are affected (set or cleared) by certain arithmetic and shifting
functions in Integer mode. These functions are listed below.
X = sets or clears
0 = always clears
— = no effect
_
Effect On
Registers Used:
Function
Carry (4)|
Out-Of-Range (5)|
Operand(s)|
Result
X
X*
X, Y
X
(=)
X
X*
X, Y
X
(x]
—
X*
X, Y
X
(£)
X
X*
X, Y
X
X
—
X
X
—
0
X, Y
X, Y
X
0
X, Y,Z
X
—
X
X
X
—
X
X
X
X
—
X
X
X
—
X
X
ASR
X
—
X
X
X
—
X
X
X
—
X
X
X
-
X
X
X
-
X
X
RLn
X
—
XY
X
X
—
X, Y
X
X
—
X, Y
X
X
—
X, Y
X
* Also in Floating-Point Decimal mode.
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