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415
Symbol Math Instructions
Section 3-11
Flags
Precautions
If Md and/or Mr are not BCD, an error will be generated and the Error Flag will
turn ON.
If as a result of the multiplication, the content of R, R+1 is 0000 hex, the
Equals Flag will turn ON.
Examples
When CIO 000000 is ON in the following example, D00100 and D00110 will
be multiplied as 4-digit BCD values and the result will be output to D00121
and D00120.
3-11-22 DOUBLE BCD MULTIPLY: *BL(425)
Purpose
Multiplies 8-digit (double-word) BCD data and/or constants.
Ladder Symbol
Variations
Applicable Program Areas
Operand Specifications
Name
Label
Operation
Error Flag
ER
ON when Md is not BCD.
ON when Mr is not BCD.
OFF in all other cases.
Equals Flag
=
ON when the result is 0.
OFF in all other cases.
Md: 1st multiplicand word
Mr: 1st multiplier word
R: 1st result word
*BL(425)
Md
Mr
R
Variations
Executed Each Cycle for ON Condition
*BL(425)
Executed Once for Upward Differentiation
@*BL(425)
Executed Once for Downward Differentiation Not supported.
Immediate Refreshing Specification
Not supported.
Block program
areas
Step program
areas
Subroutines
Interrupt tasks
OK
OK
OK
OK
Area
Md
Mr
R
CIO Area
CIO 0000 to CIO 6142
CIO 0000 to
CIO 6140
Work Area
W000 to W510
W000 to W508
Holding Bit Area
H000 to H510
H000 to H508
Auxiliary Bit Area
A000 to A958
A448 to A956
Timer Area
T0000 to T4094
T0000 to T4092
Counter Area
C0000 to C4094
C0000 to C4092
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 ...