Double-Precision Floating-Point Instructions (Cs1-H, Cj1-H, Cj1M, Or Cs1D Only) - Omron SYSMAC CJ - REFERENCE MANUAL 01-2008 Reference Manual

Double-precision Floating-point Instructions (CS1-H, CJ1-H, CJ1M, or CS1D Only)

3-16 Double-precision Floating-point Instructions (CS1-H, CJ1-
H, CJ1M, or CS1D Only)
Data Format
652
The Double-precision Floating-point Instructions convert data and perform
floating-point arithmetic operations on double-precision floating-point data.
The CS1-H/CJ1-H CPU Units support the following 20 instructions.
Instruction
DOUBLE FLOATING TO 16-BIT
DOUBLE FLOATING TO 32-BIT
16-BIT TO DOUBLE FLOATING
32-BIT TO DOUBLE FLOATING
DOUBLE FLOATING-POINT ADD
DOUBLE FLOATING-POINT SUBTRACT
DOUBLE FLOATING-POINT MULTIPLY
DOUBLE FLOATING-POINT DIVIDE
DOUBLE DEGREES TO RADIANS
DOUBLE RADIANS TO DEGREES
DOUBLE SINE
DOUBLE COSINE
DOUBLE TANGENT
DOUBLE ARC SINE
DOUBLE ARC COSINE
DOUBLE ARC TANGENT
DOUBLE SQUARE ROOT
DOUBLE EXPONENT
DOUBLE LOGARITHM
DOUBLE EXPONENTIAL POWER
Double-precision Floating-point Symbol
Comparison Instructions
Floating-point data expresses real numbers using a sign, exponent, and man-
tissa. When data is expressed in floating-point format, the following formula
applies.
s e–1,023
Real number = (–1) 2
s: Sign
e: Exponent
f: Mantissa
The floating-point data format conforms to the IEEE754 standards. Data is
expressed in 32 bits, as follows:
Sign Exponent
s e
63 62
Mnemonic
FIXD
FIXLD
DBL
DBLL
+D
–D
*D
/D
RADD
DEGD
SIND
COSD
TAND
ASIND
ACOSD
ATAND
SQRTD
EXPD
LOGD
PWRD
LD, AND,
OR
+
=D, <>D,
<D, <=D,
>D, or >=D
(1.f)
Mantissa
f
52 51
Section 3-16
Function code Page
841 658
842 659
843 661
844 662
845 664
846 666
847 668
848 670
849 672
850 674
851 675
852 677
853 679
854 681
855 683
856 685
857 687
858 689
859 691
860 693
335 to 340 695
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