Omron SYSMAC CJ - REFERENCE MANUAL 08-2008 Reference Manual page 658

Floating-point Math Instructions
Operand Specifications
Description
618
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
Indirect DM/EM
addresses in BCD
Constants
Data Registers
Index Registers
Indirect addressing
using Index Registers
COSQ(476) 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.)
COS
S+1
R+1
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 unpredictable value will be
output, but the Error Flag will not be turned ON. For information on converting
between degrees and radians, see 3-15-9 DEGREES TO RADIANS:
RAD(458) and 3-15-10 RADIANS TO DEGREES: DEG(459) .
The following diagram shows the relationship between the angle and result.
1
0
3
2 2
1
S
CIO 0000 to CIO 6142
W000 to W510
H000 to H510
A000 to A958
T0000 to T4094
C0000 to C4094
D00000 to D32766
E00000 to E32766
En_00000 to En_32766
(n = 0 to C)
@ D00000 to @ D32767
@ E00000 to @ E32767
@ En_00000 to @ En_32767
(n = 0 to C)
*D00000 to *D32767
*E00000 to *E32767
*En_00000 to *En_32767
(n = 0 to C)
Can be specified.
---
---
,IR0 to ,IR15
–2048 to +2047 ,IR0 to –2048 to +2047 ,IR15
DR0 to DR15, IR0 to IR15
,IR0+(++) to ,IR15+(++)
,–(– –)IR0 to, –(– –)IR15
Source (32-bit floating-point data)
S
R Result (32-bit floating-point data)
S: Angle (radian) data
D
R: Result (cosine)
3
2
2 2
Section 3-15
R
A448 to A958
---
S