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Diffstat (limited to 'src/math/exp2_386.s')
| -rw-r--r-- | src/math/exp2_386.s | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/src/math/exp2_386.s b/src/math/exp2_386.s deleted file mode 100644 index d04cad6a55..0000000000 --- a/src/math/exp2_386.s +++ /dev/null @@ -1,40 +0,0 @@ -// Copyright 2010 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -#include "textflag.h" - -// func Exp2(x float64) float64 -TEXT ·Exp2(SB),NOSPLIT,$0 -// test bits for not-finite - MOVL x_hi+4(FP), AX - ANDL $0x7ff00000, AX - CMPL AX, $0x7ff00000 - JEQ not_finite - FMOVD x+0(FP), F0 // F0=x - FMOVD F0, F1 // F0=x, F1=x - FRNDINT // F0=int(x), F1=x - FSUBD F0, F1 // F0=int(x), F1=x-int(x) - FXCHD F0, F1 // F0=x-int(x), F1=int(x) - F2XM1 // F0=2**(x-int(x))-1, F1=int(x) - FLD1 // F0=1, F1=2**(x-int(x))-1, F2=int(x) - FADDDP F0, F1 // F0=2**(x-int(x)), F1=int(x) - FSCALE // F0=2**x, F1=int(x) - FMOVDP F0, F1 // F0=2**x - FMOVDP F0, ret+8(FP) - RET -not_finite: -// test bits for -Inf - MOVL x_hi+4(FP), BX - MOVL x_lo+0(FP), CX - CMPL BX, $0xfff00000 - JNE not_neginf - CMPL CX, $0 - JNE not_neginf - MOVL $0, ret_lo+8(FP) - MOVL $0, ret_hi+12(FP) - RET -not_neginf: - MOVL CX, ret_lo+8(FP) - MOVL BX, ret_hi+12(FP) - RET |