SW006013 Microchip Technology, SW006013 Datasheet - Page 214

• Manufacturer Part Number: SW006013
• Description: MPLAB C Compiler For DsPIC DSCs
• Manufacturer: Microchip Technology
• Series: DsPIC30F/33Fr
• Type: MPLAB® C Compilerr

Specifications of SW006013

• Supported Families: DsPIC30F, DsPIC33F
• Core Architecture: DsPIC
• Kit Contents: Software And Docs
• Mcu Supported Families: DsPIC30F And DsPIC33F
• Tool Function: Compiler
• Tool Type: Compiler
• Processor Series: dsPIC
• Lead Free Status / RoHS Status: na
• For Use With/related Products: dSPIC DSCs
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

DS51456E-page 210
_Q15add
Description:
Include:
Prototype:
Argument:
Return Value:
_Q15asin
Description:
Include:
Prototype:
Argument:
Return Value:
_Q15asinByPI
Description:
Include:
Prototype:
Argument:
Return Value:
_Q15atan
Description:
Include:
Prototype:
Argument:
Return Value:
The function finds the sum value of two Q15 values. This function takes
care of saturation during overflow and underflow occurrences.
<libq.h>
_Q15 _Q15add(_Q15 x, _Q15 y);
x
2
y
2
This function returns the sum of x and y in Q15 format. This value
ranges from -32768 to 32767.
This function finds the arc sine of a Q15 value.
<libq.h>
_Q15 _Q15asin(_Q15 x);
x
2
This function returns the arc sine of x in Q15 format. This value ranges
from -32768 to 32767.
This function finds the arc sine of a Q15 value and then divides by PI
(π).
<libq.h>
_Q15 _Q15asinByPI(_Q15 x);
x
2
This function returns the arc sine of x, divided by PI, in Q15 format.
This value ranges from -16384 to 16303.
This function finds the arc tangent of a Q15 value.
<libq.h>
_Q15 _Q15atan(_Q15 x);
x
2
This function returns the arc tangent of x in Q15 format. This value
ranges from -25736 to 25735.
15
15
15
15
15
-1. The value of this argument ranges from -32768 to 32767.
-1. The value of this argument ranges from -32768 to 32767.
-1. The value of this argument ranges from -27573 to 27573.
-1. The value of this argument ranges from -32768 to 32767.
-1. The value of this argument ranges from -32768 to 32767.
a fixed point number in Q15 format, which ranges from -2
a fixed point number in Q15 format, which ranges from -2
a fixed point number in Q15 format, which ranges from -2
a fixed point number in Q15 format, which ranges from -2
a fixed point number in Q15 format, which ranges from -2
© 2008 Microchip Technology Inc.
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