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387
Symbol Math Instructions
Section 3-11
Description
+BCL(407) adds the BCD values in Au and Au+1, Ad and Ad+1, and CY and
outputs the result to R, R+1.
Flags
Precautions
If Au, Au +1 or Ad, Ad +1 are not BCD, an error is generated and the Error
Flag will turn ON.
If as a result of the addition, the content of R, R +1 is 00000000 hex, the
Equals Flag will turn ON.
If an addition results in a carry, the Carry Flag will turn ON.
Note To clear the Carry Flay (CY), execute the Clear Carry (CLC(041)) instruction.
Examples
When CIO 000000 is ON in the following example, D00101, D00100, D00111,
D00110, and CY will be added as 8-digit BCD values, and the result will be
output to D00121 and D00120.
3-11-9 SIGNED BINARY SUBTRACT WITHOUT CARRY: –(410)
Purpose
Subtracts 4-digit (single-word) hexadecimal data and/or constants.
Ladder Symbol
Variations
Au +1
Ad+1
R+1
CY
+
Au
Ad
R
CY
(BCD)
(BCD)
(BCD)
CY will turn
ON when there
is a carry.
Name
Label
Operation
Error Flag
ER
ON when Au, Au +1 is not BCD.
ON when Ad, Ad +1 is not BCD.
OFF in all other cases.
Equals Flag
=
ON when the result is 0.
OFF in all other cases.
Carry Flag
CY
ON when the addition results in a carry.
OFF in all other cases.
Mi: Minuend word
Su: Subtrahend word
R: Result word
−
(410)
Mi
Su
R
Variations
Executed Each Cycle for ON Condition
–(410)
Executed Once for Upward Differentiation
@–(410)
Executed Once for Downward Differentiation Not supported.
Immediate Refreshing Specification
Not supported.
Summary of Contents for CJ1G-CPUxx
Page 3: ...iv N o t i c e ...
Page 5: ...vi ...
Page 21: ...xxii Conformance to EC Directives 6 ...
Page 35: ......
Page 1131: ...1110 CJ series Instruction Execution Times and Number of Steps Section 4 2 ...