Delta Electronics AH500, Manual

Page: 152 / 547

C h a p t e r 5 A p p l i e d I n s t r u c t i o n s
A dditio nal
re mark

The relations between flags and values are shown below.
16-bit addition: Zero flag
Zero flag
Zero flag
-2 -1 0 -32,768
、 、 、 、 、
-1 0 1 32,767 0 1 2
、 、 、
Borrow flag Carry flag
Negative number:
The value of the
highest bit is 1.
Positive number:
The value of the
highest bit is 0.
Zero flag Zero flag
-2 -1 0 -2,147,483,648
、 、 、 、 、
-1 0 1 2,147,483,647 0 1 2
、 、 、
Borrow flag Carry flag
32-bit addition: Zero flag
Negative number:
The value of the
highest bit is 1.
Positive number:
The value of the
highest bit is 0.
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