1



2



3    /*



4  * rt_nonfinite.c



5  *



6    * Code generation for model "PWM_sf".



7  *



8  * Model version              : 1.825



9  * Simulink Coder version : 9.4 (R2020b) 29-Jul-2020



10  * C source code generated on : Fri Apr 14 12:53:29 2023



11 * 



12 * Target selection: rtwsfcn.tlc



13 * Note: GRT includes extra infrastructure and instrumentation for prototyping



14 * Embedded hardware selection: ARM Compatible->ARM Cortex-M



15 * Emulation hardware selection: 



16 *    Differs from embedded hardware (MATLAB Host)



17 * Code generation objectives: 



18 *    1. Execution efficiency



19 *    2. RAM efficiency



20 * Validation result: Not run



21  */



22



23



24



25    



26



27    /*



28  * Abstract:



29  *      Function to initialize non-finites,



30  *      (Inf, NaN and -Inf).



31  */



32    #include "rt_nonfinite.h"



33



34          #include "rtGetNaN.h"



35      



36        #include "rtGetInf.h"



37      



38    



39



40    



41



42



43  



44



45  



46



47  



48



49    #define NumBitsPerChar  8U



50



51



52  



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76



77  real_T rtInf;



78



79



80  



81



82



83  real_T rtMinusInf;



84



85



86  



87



88



89  real_T rtNaN;



90



91



92  



93



94



95  real32_T rtInfF;



96



97



98  



99



100



101  real32_T rtMinusInfF;



102



103



104  



105



106



107  real32_T rtNaNF;



108



109



110



111



112



113    



114  /* 



115 * Initialize the rtInf, rtMinusInf, and rtNaN needed by the



116 * generated code. NaN is initialized as non-signaling. Assumes IEEE.



117 */



118



119     void rt_InitInfAndNaN(size_t realSize) {



120



121    (void) (realSize); 



122    rtNaN = rtGetNaN();



123    rtNaNF = rtGetNaNF();



124    rtInf = rtGetInf();



125    rtInfF = rtGetInfF();



126    rtMinusInf = rtGetMinusInf();



127    rtMinusInfF = rtGetMinusInfF();



128  }



129    



130  /* Test if value is infinite */



131     boolean_T rtIsInf(real_T value) {



132    return (boolean_T)((value==rtInf || value==rtMinusInf) ? 1U : 0U);



133  }



134    



135  /* Test if single-precision value is infinite */



136     boolean_T rtIsInfF(real32_T value) {



137    return (boolean_T)(((value)==rtInfF || (value)==rtMinusInfF) ? 1U : 0U);



138  }



139    



140  /* Test if value is not a number */



141     boolean_T rtIsNaN(real_T value) {



142    boolean_T result = (boolean_T) 0;



143    size_t bitsPerReal = sizeof(real_T) * (NumBitsPerChar);



144    



145    if (bitsPerReal == 32U) {



146      result = rtIsNaNF((real32_T)value);



147    } else {



148          



149  union {



150    LittleEndianIEEEDouble bitVal;



151    real_T fltVal;



152  } tmpVal;



153  tmpVal.fltVal = value;



154  result = (boolean_T)((tmpVal.bitVal.words.wordH & 0x7FF00000) == 0x7FF00000 &&



155                       ( (tmpVal.bitVal.words.wordH & 0x000FFFFF) != 0 ||



156                         (tmpVal.bitVal.words.wordL != 0) ));



157



158



159    }



160    return result;



161  }



162    



163  /* Test if single-precision value is not a number */



164     boolean_T rtIsNaNF(real32_T value) {



165    IEEESingle tmp;



166    tmp.wordL.wordLreal = value;



167    return (boolean_T)( (tmp.wordL.wordLuint & 0x7F800000) == 0x7F800000 &&



168                        (tmp.wordL.wordLuint & 0x007FFFFF) != 0 );



169  }



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