2-161

2 Instructions
CP1E CPU Unit Instructions Reference Manual(W483)

Symbol Math Instructions

2

+C/+CL

Function
+C

+C(402) adds the binary values in Au, Ad, and CY and outputs the result to R.

+CL

+CL(403) adds the binary values in Au and Au+1, Ad and Ad+1, and CY and outputs the result to R.

Hint

To clear the Carry Flag (CY), execute the Clear Carry (CLC(041)) instruction.

Sample program
+CY
RCY
Au
Ad
(Signed binary)
(Signed binary)
(Signed binary)
CY will turn ON
when there is a
carry.
+CY
RCY
Au+1
Ad+1
R+1
Au
Ad (Signed binary)
(Signed binary)
(Signed binary)
CY will turn ON
when there is a
carry.
0.00
0.00
When CIO 0.00 is ON, D200, D210, and CY will be added as
4-digit signed binary values and the result will be output to
D220.
When CIO 0.00 is ON, D201, D200, D211, D210, and CY will
be added as 8-digit signed binary values, and the result will
be output to D221 and D220.
+C
D200
D210
D220
+CL
D200
D210
D220