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Embedded Software and Motor Control Libraries for PXR40xx

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Table 4-186. MLIB_Mul_F32 arguments (continued)<br />

Type Name Direction Description<br />

register tFrac32 f32In1 input Oper<strong>and</strong> is a 32-bit number normalized between [-1,1)<br />

register tFrac32 f32In2 input Oper<strong>and</strong> is a 32-bit number normalized between [-1,1)<br />

4.149.3 Return<br />

Fractional multiplication of the input arguments.Fractional multiplication of the input<br />

arguments<br />

4.149.4 Description<br />

Fractional multiplication of two fractional 32-bit values. The input values as well as<br />

output value is considered as 32-bit fractional values. The output saturation is not<br />

implemented in this function, thus in case the multiplication of input values is outside the<br />

(-1, 1) interval, the output value will overflow without any detection.<br />

The output of the function is defined by the following simple equation:<br />

Equation MLIB_Mul_Eq1<br />

Fractional multiplication of two fractional 32-bit values. The input values as well as<br />

output value is considered as 32-bit fractional values. The output saturation is not<br />

implemented in this function, thus in case the multiplication of input values is outside the<br />

(-1, 1) interval, the output value will overflow without any detection.<br />

Overflow is not detected.<br />

4.149.5 Re-entrancy<br />

The function is re-entrant.<br />

Note<br />

<strong>Embedded</strong> <strong>Software</strong> <strong>and</strong> <strong>Motor</strong> <strong>Control</strong> <strong>Libraries</strong> <strong>for</strong> <strong>PXR40xx</strong>, Rev. 1.0<br />

Chapter 4 API References<br />

Freescale Semiconductor, Inc. 613

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