Omron CS1G/H-CPUxxH Instructions Manual page 447

Symbol Math Instructions
Description
Flags
Precautions
Examples
426
Area
Index Registers
Indirect addressing
using Index Registers
/B(434) divides the BCD content of Dd by those of Dr and outputs the quotient
to R and the remainder to R+1.
Dd
÷
Dr
R +1 R
Remainder Quotient
Name Label
Error Flag ER
Equals Flag =
If Dd or Dr are not BCD or if the remainder (R+1) is 0, an error will be gener-
ated and the Error Flag will turn ON.
If as a result of the division, the content of R is 0000 hex, the Equals Flag will
turn ON.
If as a result of the division, the leftmost bit of R is 1, the Negative Flag will
turn ON.
When CIO 000000 is ON in the following example, D00100 will be divided by
D00110 as 4-digit BCD values and the quotient will be output to D00120 and
the remainder to D00120.
Dd
---
,IR0 to ,IR15
–2048 to +2047 ,IR0 to –2048 to +2047 ,IR15
DR0 to DR15, IR0 to IR15
,IR0+(++) to ,IR15+(++)
,–(– –)IR0 to, –(– –)IR15
(BCD)
(BCD)
(BCD)
Operation
ON when Dd is not BCD.
ON when Dr is not BCD.
ON when the remainder is 0.
OFF in all other cases.
ON when R is 0.
OFF in all other cases.
Section 3-11
Dr R