Commit 267ec305 authored by Nicolas Roussin's avatar Nicolas Roussin
Browse files

Implement W_negate function.

parent c686cdd1

lib_basop/enh64.c

+43 −0
Original line number Diff line number Diff line
@@ -128,6 +128,49 @@ Word64 W_sub_nosat( Word64 L64_var1, Word64 L64_var2 ) 
}





/*__________________________________________________________________________________

 |                                                                                 |

 |   Function Name : W_negate                                                      |

 |                                                                                 |

 |   Purpose :                                                                     |

 |                                                                                 |

 |   Negate the 64 bit variable L64_var1 with saturation; saturate in the case     |

 |   where input is 0x8000 0000 0000 0000.                                         |

 |                                                                                 |

 |   Complexity weight : 1                                                         |

 |                                                                                 |

 |   Inputs :                                                                      |

 |                                                                                 |

 |    L64_var1 64 bit long signed integer (Word64) whose value falls in the range: |

 |             0x8000 0000 0000 0000 <= L64_var1 <= 0x7fff ffff ffff ffff.         |

 |                                                                                 |

 |   Outputs :                                                                     |

 |                                                                                 |

 |    none                                                                         |

 |                                                                                 |

 |   Return Value :                                                                |

 |                                                                                 |

 |    L64_var_out                                                                  |

 |             64 bit long signed integer (Word64) whose value falls in the range: |

 |             0x8000 0000 0000 0000 <= L_var_out <= 0x7fff ffff ffff ffff.        |

 |_________________________________________________________________________________|

*/

Word64 W_negate( Word64 L64_var1 )

{

    Word64 L64_var_out;



    L64_var_out = ( L64_var1 == MIN_64 ) ? MAX_64 : -L64_var1;



#ifdef WMOPS

    multiCounter[currCounter].W_negate++;

#endif



    BASOP_CHECK();



    return ( L64_var_out );

}





/*___________________________________________________________________________

|                                                                           |

|   Function Name : W_shl                                                   |

lib_basop/enh64.h

+1 −0
Original line number Diff line number Diff line
@@ -23,6 +23,7 @@ 
#ifdef ENH_64_BIT_OPERATOR

Word64 W_add_nosat( Word64 L64_var1, Word64 L64_var2 );

Word64 W_sub_nosat( Word64 L64_var1, Word64 L64_var2 );

Word64 W_negate( Word64 L64_var1 );

Word64 W_shl( Word64 L64_var1, Word16 var2 );

Word64 W_shr( Word64 L64_var1, Word16 var2 );

Word64 W_shl_nosat( Word64 L64_var1, Word16 var2 );

lib_debug/wmc_auto.c

+1 −1
Original line number Diff line number Diff line
@@ -133,7 +133,7 @@ static BASIC_OP op_weight = { 
#ifdef ENH_64_BIT_OPERATOR

    /* Weights of new 64 bit basops */

    ,

    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1

    1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1

#endif /* #ifdef ENH_64_BIT_OPERATOR */



#ifdef ENH_32_BIT_OPERATOR

lib_debug/wmc_auto.h

+1 −0
Original line number Diff line number Diff line
@@ -879,6 +879,7 @@ typedef struct 
    unsigned int move64;        /* Complexity Weight of 1 */

    unsigned int W_add_nosat;   /* Complexity Weight of 1 */

    unsigned int W_sub_nosat;   /* Complexity Weight of 1 */

    unsigned int W_negate;      /* Complexity Weight of 1 */

    unsigned int W_shl;         /* Complexity Weight of 1 */

    unsigned int W_shr;         /* Complexity Weight of 1 */

    unsigned int W_shl_nosat;   /* Complexity Weight of 1 */