Omron CS1G/H-CPUxxH Instructions Manual page 604

Double-precision Floating-point Instructions (CS1-H, CJ1-H, CJ1M, or CS1D Only)
Flags
Precautions
3-16-5 DOUBLE FLOATING-POINT ADD: +D(845)
Purpose
Ladder Symbol
Variations
Applicable Program Areas
Operand Specifications
Name Label
Error Flag ER
Equals Flag =
Negative Flag N
The result will not be exact if a number with an absolute value greater than
16,777,215 (the maximum value that can be expressed in 24-bits) is con-
verted.
Adds two double-precision (64-bit) floating-point numbers and places the
result in the specified destination words.
This instruction is supported by the CS1-H, CJ1-H, CJ1M, and CS1D CPU
Units only.
Variations Executed Each Cycle for ON Condition
Executed Once for Upward Differentiation
Executed Once for Downward Differentiation Not supported.
Immediate Refreshing Specification
Block program areas
OK OK
Area
CIO Area
Work Area
Holding Bit Area
Auxiliary Bit Area
Timer Area
Counter Area
DM Area
EM Area without bank
EM Area with bank
Indirect DM/EM
addresses in binary
Operation
OFF
ON if both the exponent and mantissa of the result are 0.
OFF in all other cases.
ON if the result is negative.
OFF in all other cases.
+D(845)
Au: First augend word
Au
Ad: First addend word
Ad
D: First destination word
D
Step program areas Subroutines
OK
Au
CIO 0000 to CIO 6140
W000 to W508
H000 to H508
A000 to A956
T0000 to T4092
C0000 to C4092
D00000 to D32764
E00000 to E32764
En_00000 to En_32764
(n = 0 to C)
@ D00000 to @ D32767
@ E00000 to @ E32767
@ En_00000 to @ En_32767
(n = 0 to C)
Section 3-16
+D(845)
@+D(845)
Not supported.
Interrupt tasks
OK
Ad D
A448 to A956
583