Delta DVP-PM Series - Page 174

5 Categories and Use of Basic Application Instructions
DVP-PM Application Manual 5-37
Points to note:
Operations of flags:
-2 -1 0 -32,768 、 、 、 、 、 -1 0 1 32,767012 、、、
-2 -1 0 -2,147,483,648 、 、 、 、 、 -1 0 1 2,147,483,647 0 1 2 、、、
16-bit instruction:
Zero flag
Zero flag
Zero flag
Borrow flag
the most significant bit
becomes 1 (negative)
32-bit instruction:
Zero flag Zero flag
Zero flag
the most significant bit
becomes 0 (positive)
Carry flag
Borrow flag
the most significant bit
becomes 1 (negative)
the most significant bit
becomes 0 (positive)
Carry flag