1.file "fma.s"
2
3
4// Copyright (c) 2001 - 2003, Intel Corporation
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22
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38//
39// History
40//==============================================================
41// 06/07/01 Initial version
42// 05/20/02 Cleaned up namespace and sf0 syntax
43// 02/10/03 Reordered header: .section, .global, .proc, .align
44//
45// API
46//==============================================================
47// double fma  (double x, double y, double z)
48//
49// Overview of operation
50//==============================================================
51// returns x * y + z with one rounding error
52
53// All the special cases are handled by the fma instruction itself
54
55// floating-point registers used: 3
56// f8,  input x, output
57// f9,  input y
58// f10, input z
59
60.section .text
61GLOBAL_LIBM_ENTRY(fma)
62
63{ .mfb
64      nop.m 999
65      fma.d.s0  f8 = f8, f9, f10  // Result = x * y + z
66      br.ret.sptk    b0
67}
68;;
69
70GLOBAL_LIBM_END(fma)
71libm_alias_double_other (fma, fma)
72libm_alias_double_narrow (fma, fma)
73