497
Floating-point Math Instructions Section 3-14
Operand Specifications
Description COS(461) calculates the cosine of the angle (in radians) expressed as a 32-
bit floating-point value in S+1 and S and places the result in R+1 and R.
(The floating point source data must be in IEEE754 format.)
Specify the desired angle (–65,535 to 65,535) in radians in S+1 and S. If the
angle is outside of the range –65,535 to 65,535, an error will occur and the
instruction will not be executed. For information on converting from degrees to
radians, see 3-14-9 DEGREES TO RADIANS: RAD(458).
The following diagram shows the relationship between the angle and result.
Area S R
CIO Area CIO 0 to CIO 6142
Work Area W0 to W510
Holding Bit Area H0 to H510
Auxiliary Bit Area A0 to A958 A448 to A958
Timer Area T0000 to T4094
Counter Area C0000 to C4094
DM Area D0 to D32766
Indirect DM addresses
in binary
@ D0 to @ D32767
Indirect DM addresses
in BCD
*D0 to *D32767
Constants #00000000 to #FFFFFFFF
(binary)
---
Data Registers ---
Index Registers ---
Indirect addressing
using Index Registers
,IR0 to ,IR15
–2048 to +2047 ,IR0 to –2048 to +2047 ,IR15
DR0 to DR15, IR0 to IR15
,IR0+(++) to ,IR15+(++)
,–(– –)IR0 to, –(– –)IR15
R+1 R
S
S+1
COS
Source (32-bit floating-point data)
Result (32-bit floating-point data)
R
S: Angle (radian) data
R: Result (cosine)
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