350
Symbol Math Instructions Section 3-10
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 0.01 is ON in the following example, D1001, D1000, D1101,
D1100, and CY will be added as 8-digit BCD values, and the result will be out-
put to D1201 and D1200.
Timer Area T0000 to T4094
Counter Area C0000 to C4094
DM Area D0 to D32766
Indirect DM addresses
in binary
@ D0 to @ D32767
Indirect DM addresses
in BCD
*D0 to *D32767
Constants #00000000 to #99999999 (BCD) ---
Data Registers ---
Index Registers ---
Indirect addressing
using Index Registers
,IR0 to ,IR15
–2048 to +2047 ,IR0 to –2048 to +2047 ,IR15
DR0 to DR15, IR0 to IR15
,IR0+(++) to ,IR15+(++)
,–(– –)IR0 to, –(– –)IR15
Area Au Ad R
R+1
CY
+
RCY
(BCD)
(BCD)
(BCD)
Au+1
Ad+1
Au
Ad
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.
0.01
D1000
D1100
D1200
To Next Page
Loading...
