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Diffstat (limited to 'src/math/modf_386.s')
| -rw-r--r-- | src/math/modf_386.s | 34 |
1 files changed, 0 insertions, 34 deletions
diff --git a/src/math/modf_386.s b/src/math/modf_386.s deleted file mode 100644 index e9160735d3..0000000000 --- a/src/math/modf_386.s +++ /dev/null @@ -1,34 +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 Modf(f float64) (int float64, frac float64) -TEXT ·Modf(SB),NOSPLIT,$0 - // special case for f == -0.0 - MOVL f_hi+4(FP), DX // high word - MOVL f_lo+0(FP), AX // low word - CMPL DX, $(1<<31) // beginning of -0.0 - JNE notNegativeZero - CMPL AX, $0 // could be denormalized - JNE notNegativeZero - MOVL AX, int_lo+8(FP) - MOVL DX, int_hi+12(FP) - MOVL AX, frac_lo+16(FP) - MOVL DX, frac_hi+20(FP) - RET -notNegativeZero: - FMOVD f+0(FP), F0 // F0=f - FMOVD F0, F1 // F0=f, F1=f - FSTCW -2(SP) // save old Control Word - MOVW -2(SP), AX - ORW $0x0c00, AX // Rounding Control set to truncate - MOVW AX, -4(SP) // store new Control Word - FLDCW -4(SP) // load new Control Word - FRNDINT // F0=trunc(f), F1=f - FLDCW -2(SP) // load old Control Word - FSUBD F0, F1 // F0=trunc(f), F1=f-trunc(f) - FMOVDP F0, int+8(FP) // F0=f-trunc(f) - FMOVDP F0, frac+16(FP) - RET |