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Editing: floor_386.s

// 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 archCeil(x float64) float64
TEXT ·archCeil(SB),NOSPLIT,$0
	FMOVD   x+0(FP), F0  // F0=x
	FSTCW   -2(SP)       // save old Control Word
	MOVW    -2(SP), AX
	ANDW    $0xf3ff, AX
	ORW     $0x0800, AX  // Rounding Control set to +Inf
	MOVW    AX, -4(SP)   // store new Control Word
	FLDCW   -4(SP)       // load new Control Word
	FRNDINT              // F0=Ceil(x)
	FLDCW   -2(SP)       // load old Control Word
	FMOVDP  F0, ret+8(FP)
	RET

// func archFloor(x float64) float64
TEXT ·archFloor(SB),NOSPLIT,$0
	FMOVD   x+0(FP), F0  // F0=x
	FSTCW   -2(SP)       // save old Control Word
	MOVW    -2(SP), AX
	ANDW    $0xf3ff, AX
	ORW     $0x0400, AX  // Rounding Control set to -Inf
	MOVW    AX, -4(SP)   // store new Control Word
	FLDCW   -4(SP)       // load new Control Word
	FRNDINT              // F0=Floor(x)
	FLDCW   -2(SP)       // load old Control Word
	FMOVDP  F0, ret+8(FP)
	RET

// func archTrunc(x float64) float64
TEXT ·archTrunc(SB),NOSPLIT,$0
	FMOVD   x+0(FP), F0  // F0=x
	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(x)
	FLDCW   -2(SP)       // load old Control Word
	FMOVDP  F0, ret+8(FP)
	RET

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Name	Type	Actions
.. (Parent Directory)
📄 abs.go	FILE	[EDIT]
📄 acos_s390x.s	FILE	[EDIT]
📄 acosh.go	FILE	[EDIT]
📄 acosh_s390x.s	FILE	[EDIT]
📄 all_test.go	FILE	[EDIT]
📄 arith_s390x.go	FILE	[EDIT]
📄 arith_s390x_test.go	FILE	[EDIT]
📄 asin.go	FILE	[EDIT]
📄 asin_s390x.s	FILE	[EDIT]
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📄 atan_s390x.s	FILE	[EDIT]
📄 atanh.go	FILE	[EDIT]
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📄 bits.go	FILE	[EDIT]
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📄 cbrt_s390x.s	FILE	[EDIT]
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📄 const.go	FILE	[EDIT]
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📄 export_s390x_test.go	FILE	[EDIT]
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📄 floor.go	FILE	[EDIT]
📄 floor_386.s	FILE	[EDIT]
📄 floor_amd64.s	FILE	[EDIT]
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📄 floor_ppc64x.s	FILE	[EDIT]
📄 floor_s390x.s	FILE	[EDIT]
📄 floor_wasm.s	FILE	[EDIT]
📄 fma.go	FILE	[EDIT]
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📄 huge_test.go	FILE	[EDIT]
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📄 hypot_386.s	FILE	[EDIT]
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📄 log_s390x.s	FILE	[EDIT]
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📄 logb.go	FILE	[EDIT]
📄 mod.go	FILE	[EDIT]
📄 modf.go	FILE	[EDIT]
📄 modf_arm64.s	FILE	[EDIT]
📄 modf_asm.go	FILE	[EDIT]
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📄 modf_ppc64x.s	FILE	[EDIT]
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📄 pow.go	FILE	[EDIT]
📄 pow10.go	FILE	[EDIT]
📄 pow_s390x.s	FILE	[EDIT]
📁 rand/	DIR
📄 remainder.go	FILE	[EDIT]
📄 signbit.go	FILE	[EDIT]
📄 sin.go	FILE	[EDIT]
📄 sin_s390x.s	FILE	[EDIT]
📄 sincos.go	FILE	[EDIT]
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📄 sinh_s390x.s	FILE	[EDIT]
📄 sqrt.go	FILE	[EDIT]
📄 stubs.go	FILE	[EDIT]
📄 stubs_s390x.s	FILE	[EDIT]
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📄 tan_s390x.s	FILE	[EDIT]
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📄 tanh_s390x.s	FILE	[EDIT]
📄 trig_reduce.go	FILE	[EDIT]
📄 unsafe.go	FILE	[EDIT]