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40 //==============================================================
41 // 05/31/01 Initial version
42 // 05/20/02 Cleaned up namespace and sf0 syntax
43 // 02/10/03 Reordered header: .section, .global, .proc, .align
46 //==============================================================
47 // long double fmaxl (long double x, long double y)
49 // Overview of operation
50 //==============================================================
51 // returns the algebraic maximum of 2 input values
54 // fmaxl(x, nan) returns x if x is numeric // Must special case this one
55 // fmaxl(nan, y) returns y if y is numeric
56 // fmaxl(nan1, nan2) returns quietized nan2
57 // fmaxl(+0,+0) returns +0
58 // fmaxl(-0,+0) returns +0
59 // fmaxl(-0,-0) returns -0
60 // fmaxl(+0,-0) returns +0 // Must special case this one
62 // SNaN causes invalid to be set
64 // floating-point registers used: 2
65 // f8, input x, output
69 GLOBAL_LIBM_ENTRY(fmaxl)
73 fcmp.unord.s0 p6,p7 = f8, f9 // Is x or y a nan? Raise invalid or denormal
80 (p7) fclass.m.unc p8,p9 = f9, 0x06 // If no nan, is y=-0?
87 (p6) fclass.m.unc p10,p0 = f8, 0xc3 // Is x nan?
94 (p9) fmax.s0 f8 = f8, f9 // Normal case, no nan and y not -0
101 (p8) fmax.s0 f8 = f9, f8 // No nan and y -0
108 (p10) fmerge.s f8 = f9, f9 // If x nan, return y, else do nothing (returns x)
113 GLOBAL_LIBM_END(fmaxl)
114 libm_alias_ldouble_other (fmax, fmax)