c4e_mpvec.h (Version 579)

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/****************************** -*- mode: C -*- ******************************/
#ifndef C4E_MPVEC_H
#define C4E_MPVEC_H


/* INCLUDES ******************************************************************/

#include "c4e_sys.h"


#ifdef  __cplusplus
extern "C" {
#endif


/* TYPEDEFS ******************************************************************/


/* DEFINES *******************************************************************/


/* MACROS ********************************************************************/


/* MACRO *********************************************************************/
#define C4E_MPVEC_DIGIT_MAC(a, b, y, carry)                                    \
    do                                                                         \
    {                                                                          \
        C4eArchDigit2 tmp_ = C4E_ARCH_DIGIT2_ADD(C4E_ARCH_DIGIT2_MUL((a), (b)), \
                                                (y), C4E_SYS_DIGIT_ZERO);      \
        (carry) = C4E_ARCH_DIGIT2_MSD(tmp_);                                   \
        (y) = C4E_ARCH_DIGIT2_LSD(tmp_);                                       \
    } while(C4E_FALSE)




#ifdef C4E_CONFIG_ENABLE_COMBA /* MAC operations for Comba multiplication */

/* MACRO *********************************************************************/
#define C4E_MPVEC_MAC_DECL(mac)     C4eArchMac mac



/* MACRO *********************************************************************/
#define C4E_MPVEC_MAC_INIT(mac)     C4E_MPVEC_MAC_DECL(mac) =   \
    {                                                           \
        .acc = (C4eArchDigit2)C4E_SYS_DIGIT_ZERO,               \
        .cy = C4E_SYS_DIGIT_ZERO                                \
    }



/* MACRO *********************************************************************/
#define C4E_MPVEC_MAC_DIGIT(mac) C4E_ARCH_DIGIT2_LSD((mac).acc)



/* MACRO *********************************************************************/
#define C4E_MPVEC_MAC_ADD(mac, val)             \
    do                                          \
    {                                           \
        C4eArchDigit2 _tmp = (mac).acc;         \
        (mac).acc += val;                       \
                                                \
        if ((mac).acc < _tmp)  /* overflow? */  \
        {                                       \
            ++(mac).cy;                         \
        }                                       \
    }                                           \
    while (C4E_FALSE)



/* MACRO *********************************************************************/
#define C4E_MPVEC_MAC_OP(mac, a, b)                             \
    C4E_MPVEC_MAC_ADD((mac), C4E_ARCH_DIGIT2_MUL((a), (b)))



#endif /* C4E_CONFIG_ENABLE_COMBA */



/* PROTOTYPES ****************************************************************/


/* FUNCTION ******************************************************************/
    C4eArchDigit c4e_mpvec_add(C4E_CONST C4eArchDigit* pa,
                               C4E_CONST C4eArchDigit* pb,
                               C4eArchIdx len, C4eArchDigit* py);


/* FUNCTION ******************************************************************/
    C4eArchDigit c4e_mpvec_cyadd(C4eArchDigit carry,
                                 C4E_CONST C4eArchDigit* px,
                                 C4eArchIdx len, C4eArchDigit* py);


/* FUNCTION ******************************************************************/
    C4eArchDigit c4e_mpvec_cyacc(C4eArchDigit carry, C4eArchIdx len,
                                 C4eArchDigit* pxy);


/* FUNCTION ******************************************************************/
    C4eArchDigit c4e_mpvec_sub(C4E_CONST C4eArchDigit* pa,
                               C4E_CONST C4eArchDigit* pb,
                               C4eArchIdx len, C4eArchDigit* py);


/* FUNCTION ******************************************************************/
    C4eArchDigit c4e_mpvec_cysub(C4eArchDigit borrow,
                                 C4E_CONST C4eArchDigit* px,
                                 C4eArchIdx len, C4eArchDigit* py);


/* FUNCTION ******************************************************************/
    C4eArchDigit c4e_mpvec_cpl(C4eArchDigit borrow,
                               C4E_CONST C4eArchDigit* px,
                               C4eArchIdx len, C4eArchDigit* py);



/* FUNCTION ******************************************************************/
    C4eArchDigit c4e_mpvec_muladd(C4eArchDigit digit,
                                  C4E_CONST C4eArchDigit* px,
                                  C4eArchIdx len, C4eArchDigit* py);


/* FUNCTION ******************************************************************/
    C4eArchDigit c4e_mpvec_dblmuladd(C4eArchDigit digit,
                                     C4E_CONST C4eArchDigit* px,
                                     C4eArchIdx len, C4eArchDigit* py);


/* FUNCTION ******************************************************************/
    C4eArchDigit c4e_mpvec_mulsub(C4eArchDigit digit,
                                  C4E_CONST C4eArchDigit* px,
                                  C4eArchIdx len, C4eArchDigit* py);

/* FUNCTION ******************************************************************/
    C4eArchDigit c4e_mpvec_sqr(C4E_CONST C4eArchDigit* px,
                               C4eArchIdx len, C4eArchDigit* py);


#ifdef C4E_CONFIG_ENABLE_COMBA

/* FUNCTION ******************************************************************/
    C4eArchDigit c4e_mpvec_imac(C4E_MPVEC_MAC_DECL(*mac),
                                C4E_CONST C4eArchDigit* pUp,
                                C4E_CONST C4eArchDigit* pDown,
                                C4eArchIdx len);


/* FUNCTION ******************************************************************/
    C4eArchDigit c4e_mpvec_dblimac(C4E_MPVEC_MAC_DECL(*mac),
                                   C4E_CONST C4eArchDigit* pUp,
                                   C4E_CONST C4eArchDigit* pDown,
                                   C4eArchIdx len);

#endif /* C4E_CONFIG_ENABLE_COMBA */



#ifdef  __cplusplus
}
#endif


#endif /* C4E_MPVEC_H */


/******************************************************************************/
/* END OF FILE                                                                */
/******************************************************************************/

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