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Floating-point Math Instructions
Section 3-15
Description
ATAN(465) computes the angle (in radians) for a tangent value expressed as
a 32-bit floating-point number in S+1 and S and places the result in R+1 and
R.
(The floating point source data must be in IEEE754 format.)
The result is output to words R+1 and R as an angle (in radians) within the
range of –
π
/2 to
π
/2.
The following diagram shows the relationship between the input data and
result.
Flags
Precautions
The source data in S+1 and S must be in IEEE754 floating-point data format.
R+1
R
S
S+1
TAN
–1
Source (32-bit floating-point data)
Result (32-bit floating-point data)
R
S: Input data (tangent)
R: Result (radians)
Name
Label
Operation
Error Flag
ER
ON if the source data is not recognized as floating-point
data.
ON if the source data is not a number (NaN).
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
OFF
Underflow Flag
UF
OFF
Negative Flag
N
ON if the result is negative.
OFF in all other cases.
Summary of Contents for SYSMAC CS Series
Page 2: ......
Page 4: ...iv ...
Page 30: ...xxx ...
Page 186: ...146 List of Instructions by Function Code Section 2 4 ...
Page 1320: ...1280 Model Conversion Instructions Unit Ver 3 0 or Later Section 3 35 ...
Page 1390: ...1350 CJ series Instruction Execution Times and Number of Steps Section 4 2 ...
Page 1391: ...1351 Appendix A ASCII Code Table ASCII SP Four leftmost bits Four rightmost bits ...
Page 1392: ...1352 ASCII Code Table Appendix A ...
Page 1404: ...1364 Revision History ...