s_normRoundPackMToExtF80M.c File Reference

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

Include dependency graph for s_normRoundPackMToExtF80M.c:

Go to the source code of this file.

Functions
void	softfloat_normRoundPackMToExtF80M (bool sign, int32_t exp, uint32_t *extSigPtr, uint_fast8_t roundingPrecision, struct extFloat80M *zSPtr)

Function Documentation

softfloat_normRoundPackMToExtF80M()

void softfloat_normRoundPackMToExtF80M	(	bool	sign,
		int32_t	exp,
		uint32_t *	extSigPtr,
		uint_fast8_t	roundingPrecision,
		struct extFloat80M *	zSPtr )

Definition at line 43 of file s_normRoundPackMToExtF80M.c.

{
    int_fast16_t shiftDist;
    uint32_t wordSig;
 
    shiftDist = 0;
    wordSig = extSigPtr[indexWord( 3, 2 )];
    if ( ! wordSig ) {
        shiftDist = 32;
        wordSig = extSigPtr[indexWord( 3, 1 )];
        if ( ! wordSig ) {
            shiftDist = 64;
            wordSig = extSigPtr[indexWord( 3, 0 )];
            if ( ! wordSig ) {
                zSPtr->signExp = packToExtF80UI64( sign, 0 );
                zSPtr->signif = 0;
                return;
            }
        }
    }
    shiftDist += softfloat_countLeadingZeros32( wordSig );
    if ( shiftDist ) {
        exp -= shiftDist;
        softfloat_shiftLeft96M( extSigPtr, shiftDist, extSigPtr );
    }
    softfloat_roundPackMToExtF80M(
        sign, exp, extSigPtr, roundingPrecision, zSPtr );
 
}