669
Double-precision Floating-point Instructions (CS1-H, CJ1-H, CJ1M, or CS1D Only) Section 3-16
Flags
Precautions The Multiplicand (Md to Md+3) and Multiplier (Mr to Mr+3) data must be in
IEEE754 floating-point data format.
3-16-8 DOUBLE FLOATING-POINT DIVIDE: /D(848)
Purpose Divides one double-precision (64-bit) floating-point number by another and
places the result in the specified destination words.
This instruction is supported by CS1-H, CJ1-H, CJ1M, and CS1D CPU Units
only.
Ladder Symbol
Variations
Applicable Program Areas
Operand Specifications
Name Label Operation
Error Flag ER ON if the multiplicand or multiplier data is not recognized
as floating-point data.
ON if the multiplicand or multiplier is not a number (NaN).
ON if +∞ and 0 are multiplied.
ON if –∞ and 0 are multiplied.
OFF in all other cases.
Equals Flag = ON if both the exponent and mantissa of the result are 0.
OFF in all other cases.
Overflow Flag OF ON if the absolute value of the result is too large to be
expressed as a double-precision floating-point value.
Underflow Flag UF ON if the absolute value of the result is too small to be
expressed as a double-precision floating-point value.
Negative Flag N ON if the result is negative.
OFF in all other cases.
/D(848)
D
Dd
Dr
Dd: First Dividend word
Dr: First Divisor word
D: First destination word
Variations Executed Each Cycle for ON Condition /D(848)
Executed Once for Upward Differentiation @/D(848)
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 Dd Dr D
CIO Area CIO 0000 to CIO 6140
Work Area W000 to W508
Holding Bit Area H000 to H508
Auxiliary Bit Area A000 to A956 A448 to A956
Timer Area T0000 to T4092
Counter Area C0000 to C4092
DM Area D00000 to D32764
To Next Page
Loading...
Need help?
General
