i64_to_extF80.c File Reference

#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "softfloat.h"

Include dependency graph for i64_to_extF80.c:

Go to the source code of this file.

Functions
extFloat80_t	i64_to_extF80 (int64_t a)

Function Documentation

i64_to_extF80()

extFloat80_t i64_to_extF80

(

int64_t

a

)

Definition at line 43 of file i64_to_extF80.c.

{
    uint_fast16_t uiZ64;
    uint_fast64_t absA;
    bool sign;
    int_fast8_t shiftDist;
    union { struct extFloat80M s; extFloat80_t f; } uZ;
 
    uiZ64 = 0;
    absA = 0;
    if ( a ) {
        sign = (a < 0);
        absA = sign ? -(uint_fast64_t) a : (uint_fast64_t) a;
        shiftDist = softfloat_countLeadingZeros64( absA );
        uiZ64 = packToExtF80UI64( sign, 0x403E - shiftDist );
        absA <<= shiftDist;
    }
    uZ.s.signExp = uiZ64;
    uZ.s.signif  = absA;
    return uZ.f;
 
}