@ *****************************************************************
@
@               The Compcert verified compiler
@
@           Xavier Leroy, INRIA Paris-Rocquencourt
@
@ Copyright (c) 2013 Institut National de Recherche en Informatique et
@  en Automatique.
@
@ Redistribution and use in source and binary forms, with or without
@ modification, are permitted provided that the following conditions are met:
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@       notice, this list of conditions and the following disclaimer.
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@       documentation and/or other materials provided with the distribution.
@     * Neither the name of the <organization> nor the
@       names of its contributors may be used to endorse or promote products
@       derived from this software without specific prior written permission.
@ 
@ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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@ *********************************************************************

@ Helper functions for 64-bit integer arithmetic.  ARM version.

        .text

@@@ Conversion from signed 64-bit integer to double float
	
	.global __i64_stod
__i64_stod:
        fmsr s0, r0
        fuitod d0, s0           @ convert low half to double (unsigned)
        fmsr s2, r1
        fsitod d1, s2           @ convert high half to double (signed)
        fldd d2, .LC1           @ d2 = 2^32
        fmacd d0, d1, d2        @ d0 = d0 + d1 * d2 = double value of int64
#ifdef VARIANT_eabi	
	fmrrd r0, r1, d0        @ return result in r0, r1
#endif
        bx lr
	.type __i64_stod, %function
	.size __i64_stod, . - __i64_stod

        .balign 8
.LC1:   .quad 0x41f0000000000000 @ 2^32 in double precision