Chapter 7 Second Development Platform VP3000
354
API Instruction code Operand Function
134 D ACOS P S, D
Binary floating-point number arccosine
operation
Type
Operand
Bit devices Word devices
16-bit instruction
- - - -
32-bit instruction (9 steps)
DACOS
Continuous
execution
type
DACOSP
Pulse
execution
type
Associated flag: none
X Y M K H KnX KnY KnM T C D
S
D
Caution for using operand
See the specification of each model for the scope of device’s usage.
Description
S: source value (binary floating-point number)
D: operation result of arccosine
ACOS value = cos
-1
See the figure below for the relation between the input value and the operation result:
Example
When X0 = ON, designate the binary floating-point number (D1, D0) to find the arccosine value
and stores in (D11, D10). The content is binary floating-point number.
X0
DACOS D0 D10
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