s_shiftRightJam128.c File Reference

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

Include dependency graph for s_shiftRightJam128.c:

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Functions
struct uint128	softfloat_shiftRightJam128 (uint64_t a64, uint64_t a0, uint_fast32_t dist)

Function Documentation

softfloat_shiftRightJam128()

struct uint128 softfloat_shiftRightJam128	(	uint64_t	a64,
		uint64_t	a0,
		uint_fast32_t	dist )

Definition at line 44 of file s_shiftRightJam128.c.

{
    uint_fast8_t u8NegDist;
    struct uint128 z;
 
    if ( dist < 64 ) {
        u8NegDist = -dist;
        z.v64 = a64>>dist;
        z.v0 =
            a64<<(u8NegDist & 63) | a0>>dist
                | ((uint64_t) (a0<<(u8NegDist & 63)) != 0);
    } else {
        z.v64 = 0;
        z.v0 =
            (dist < 127)
                ? a64>>(dist & 63)
                      | (((a64 & (((uint_fast64_t) 1<<(dist & 63)) - 1)) | a0)
                             != 0)
                : ((a64 | a0) != 0);
    }
    return z;
 
}