Embedded Software and Motor Control Libraries for PXR40xx

Function MLIB_Add_F32
This inline function returns the sum of two input values. The input values as well as
output value is considered as 32-bit fractional data type. The output saturation is not
implemented in this function, thus in case the sum of input values is outside the (-1, 1)
interval, the output value will overflow without any detection.
Note
Due to effectivity reason this function is implemented as inline
and thus is not ANSI-C compliant.
4.120.5 Re-entrancy:
The function is re-entrant.
4.120.6 Code Example:
#include "mlib.h"
tFrac32 f32In1, f32In2;
tFrac32 f32Out;
void main(void)
{
// input value 1 = 0.25
f32In1 = FRAC32 (0.25);
// input value 2 = 0.25
f32In2 = FRAC32 (0.25);
}
// output should be FRAC32(0.5) = 0x40000000
f32Out = MLIB_Add_F32(f32In1, f32In2);
// output should be FRAC32(0.5) = 0x40000000
f32Out = MLIB_Add (f32In1, f32In2, Define F32);
// ##############################################################
// Available only if 32-bit fractional implementation selected
// as default
// ##############################################################
// output should be FRAC32(0.5) = 0x40000000
f32Out = MLIB_Add (f32In1, f32In2);
The output of the function is defined by the following simple equation:
Equation MLIB_Add_Eq1
Embedded Software and Motor Control Libraries for PXR40xx, Rev. 1.0
554 Freescale Semiconductor, Inc.