Omron SYSMAC CS Series Instruction & Reference Manual page 485

ASIND/ACOSD/ATAND
Instruction
DOUBLE ARC SINE
DOUBLE ARC COSINE
DOUBLE ARC TANGENT
ASIND
ASIND(854)
Symbol
S
D
Applicable Program Areas
Function block
Area
definitions
Usage OK
Operands
Operand
S First source word
D First destination word
 Operand Specifications
Word addresses
Area
CIO WR HR AR
S
OK OK OK OK
D
Flags
Name
Error Flag
Equals Flag
Overflow Flag
Underflow Flag
Negative Flag
CS/CJ/NSJ Series Instructions Reference Manual (W474)
Mnemonic Variations
ASIND @ASIND
ACOSD @ACOSD
ATAND @ATAND
S: First source word
D: First destination
word
Block program areas Step program areas
OK OK
Description
Indirect DM/EM
addresses
@DM
T C DM EM
@EM
OK OK OK OK OK
Label
P_ER • ON if the source data is not recognized as floating-point data.
• ASIND
•ON if the source data is not a number (NaN).
•ON if the absolute value of the source data exceeds 1.0.
• ACOSD
•ON if the source data is not a number (NaN).
•ON if the absolute value of the source data exceeds 1.0.
• ATAND
•ON if the source data is not a number (NaN).
•OFF in all other cases.
P_EQ • ON if both the exponent and mantissa of the result are 0.
• OFF in all other cases.
P_OF Unchanged
P_UF Unchanged
P_N • ASIND, ATAND
•ON if the result is negative.
•OFF in all other cases.
• ACOSD
Unchanged
Function
code
Calculates the arc sine of a double-precision (64-
854 bit) floating-point number and places the result in
the specified destination words.
Calculates the arc cosine of a double-precision
855 (64-bit) floating-point number and places the
result in the specified result words.
Calculates the arc tangent of a double-precision
856 (64-bit) floating-point number and places the
result in the specified result words.
ACOSD
ACOSD(855)
S
S: First source word
D
D: First destination
word
Subroutines
OK
Data type
LREAL
LREAL
Registers
Con-
stants
*DM
DR
*EM
OK --- ---
Operation
3. Instructions
Function
ATAND
ATAND(856)
S
S: First source word
D
D: First destination
word
SFC action or
Interrupt tasks
transition programs
OK OK
Size
4
4
Flags
Pulse
bits
Indirect
IR TK CF
using IR
--- OK --- --- ---
3
TR
bits
---
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