s_normRoundPackMToF128M.c File Reference

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

Include dependency graph for s_normRoundPackMToF128M.c:

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Functions
void	softfloat_normRoundPackMToF128M (bool sign, int32_t exp, uint32_t *extSigPtr, uint32_t *zWPtr)

Function Documentation

softfloat_normRoundPackMToF128M()

void softfloat_normRoundPackMToF128M	(	bool	sign,
		int32_t	exp,
		uint32_t *	extSigPtr,
		uint32_t *	zWPtr )

Definition at line 43 of file s_normRoundPackMToF128M.c.

{
    const uint32_t *ptr;
    int_fast16_t shiftDist;
    uint32_t wordSig;
 
    ptr = extSigPtr + indexWordHi( 5 );
    shiftDist = 0;
    for (;;) {
        wordSig = *ptr;
        if ( wordSig ) break;
        shiftDist += 32;
        if ( 160 <= shiftDist ) {
            zWPtr[indexWordHi( 4 )] = packToF128UI96( sign, 0, 0 );
            zWPtr[indexWord( 4, 2 )] = 0;
            zWPtr[indexWord( 4, 1 )] = 0;
            zWPtr[indexWord( 4, 0 )] = 0;
            return;
        }
        ptr -= wordIncr;
    }
    shiftDist += softfloat_countLeadingZeros32( wordSig ) - 15;
    if ( shiftDist ) {
        exp -= shiftDist;
        softfloat_shiftLeft160M( extSigPtr, shiftDist, extSigPtr );
    }
    softfloat_roundPackMToF128M( sign, exp, extSigPtr, zWPtr );
 
}