s_mul64ByShifted32To128.c File Reference

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

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Functions
struct uint128	softfloat_mul64ByShifted32To128 (uint64_t a, uint32_t b)

Function Documentation

softfloat_mul64ByShifted32To128()

struct uint128 softfloat_mul64ByShifted32To128	(	uint64_t	a,
		uint32_t	b )

Definition at line 43 of file s_mul64ByShifted32To128.c.

{
    uint_fast64_t mid;
    struct uint128 z;
 
    mid = (uint_fast64_t) (uint32_t) a * b;
    z.v0 = mid<<32;
    z.v64 = (uint_fast64_t) (uint32_t) (a>>32) * b + (mid>>32);
    return z;
 
}

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