s_add256M.c File Reference

#include <stdint.h>
#include "platform.h"
#include "primitiveTypes.h"

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Functions
void	softfloat_add256M (const uint64_t *aPtr, const uint64_t *bPtr, uint64_t *zPtr)

Function Documentation

softfloat_add256M()

void softfloat_add256M	(	const uint64_t *	aPtr,
		const uint64_t *	bPtr,
		uint64_t *	zPtr )

Definition at line 44 of file s_add256M.c.

{
    unsigned int index;
    uint_fast8_t carry;
    uint64_t wordA, wordZ;
 
    index = indexWordLo( 4 );
    carry = 0;
    for (;;) {
        wordA = aPtr[index];
        wordZ = wordA + bPtr[index] + carry;
        zPtr[index] = wordZ;
        if ( index == indexWordHi( 4 ) ) break;
        if ( wordZ != wordA ) carry = (wordZ < wordA);
        index += wordIncr;
    }
 
}

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