/*
 * Copyright 2012, Alex Smith, alex@alex-smith.me.uk.
 * Distributed under the terms of the MIT License.
 */


#include <asm_defs.h>


/* uint16 __swap_int16(uint16 value) */
FUNCTION(__swap_int16):
        movl    %edi, %eax
        bswap   %eax
        shr             $16, %eax
        ret
FUNCTION_END(__swap_int16)

/* uint32 __swap_int32(uint32 value) */
FUNCTION(__swap_int32):
        movl    %edi, %eax
        bswap   %eax
        ret
FUNCTION_END(__swap_int32)

/* uint64 __swap_int64(uint64 value) */
FUNCTION(__swap_int64):
        movq    %rdi, %rax
        bswap   %rax
        ret
FUNCTION_END(__swap_int64)

/* float __swap_float(float value) */
FUNCTION(__swap_float):
        sub             $8, %rsp
        movss   %xmm0, (%rsp)
        movl    (%rsp), %eax
        bswap   %eax
        movl    %eax, (%rsp)
        movss   (%rsp), %xmm0
        add             $8, %rsp
        ret
FUNCTION_END(__swap_float)

/* double __swap_double(double value) */
FUNCTION(__swap_double):
        sub             $8, %rsp
        movsd   %xmm0, (%rsp)
        movq    (%rsp), %rax
        bswap   %rax
        movq    %rax, (%rsp)
        movsd   (%rsp), %xmm0
        add             $8, %rsp
        ret
FUNCTION_END(__swap_double)