25 lines
603 B
ArmAsm
25 lines
603 B
ArmAsm
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// Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
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// SPDX-License-Identifier: BSD-3-Clause
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#include "textflag.h"
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// func fma(a, b, c float64) float64
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// Computes a*b + c using fused multiply-add.
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TEXT ·fma(SB), NOSPLIT, $0-32
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FLD a+0(FP), FA0
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FLD b+8(FP), FA1
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FLD c+16(FP), FA2
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FMADDD FA0, FA1, FA2, FA3
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FSD FA3, ret+24(FP)
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RET
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// func fms(a, b, c float64) float64
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// Computes a*b - c using fused multiply-subtract.
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TEXT ·fms(SB), NOSPLIT, $0-32
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FLD a+0(FP), FA0
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FLD b+8(FP), FA1
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FLD c+16(FP), FA2
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FMSUBD FA0, FA1, FA2, FA3
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FSD FA3, ret+24(FP)
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RET
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