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// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
#include "../assembly.h"
// long double __floatundixf(du_int a);16
#ifdef __i386__
CONST_SECTION
.balign 16
twop52:
.quad 0x4330000000000000
.balign 16
twop84_plus_twop52_neg:
.quad 0xc530000000100000
.balign 16
twop84:
.quad 0x4530000000000000
#define REL_ADDR(_a) (_a)-0b(%eax)
.text
.balign 4
DEFINE_COMPILERRT_FUNCTION(__floatundixf)
calll 0f
0: popl %eax
movss 8(%esp), %xmm0 // hi 32 bits of input
movss 4(%esp), %xmm1 // lo 32 bits of input
orpd REL_ADDR(twop84), %xmm0 // 2^84 + hi (as a double)
orpd REL_ADDR(twop52), %xmm1 // 2^52 + lo (as a double)
addsd REL_ADDR(twop84_plus_twop52_neg), %xmm0 // hi - 2^52 (no rounding occurs)
movsd %xmm1, 4(%esp)
fldl 4(%esp)
movsd %xmm0, 4(%esp)
faddl 4(%esp)
ret
END_COMPILERRT_FUNCTION(__floatundixf)
#endif // __i386__
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