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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build !purego
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#include "textflag.h"
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2023-06-07 09:43:20 +08:00
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// func addMulVVW256(z, x *uint, y uint) (c uint)
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TEXT ·addMulVVW256(SB), $0-16
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MOVL $8, BX
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JMP addMulVVWy(SB)
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// func addMulVVW1024(z, x *uint, y uint) (c uint)
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TEXT ·addMulVVW1024(SB), $0-16
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MOVL $32, BX
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JMP addMulVVWy(SB)
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// func addMulVVW1536(z, x *uint, y uint) (c uint)
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TEXT ·addMulVVW1536(SB), $0-16
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MOVL $48, BX
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JMP addMulVVWy(SB)
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// func addMulVVW2048(z, x *uint, y uint) (c uint)
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TEXT ·addMulVVW2048(SB), $0-16
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MOVL $64, BX
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JMP addMulVVWy(SB)
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TEXT addMulVVWy(SB), NOFRAME|NOSPLIT, $0
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MOVL z+0(FP), DI
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MOVL x+4(FP), SI
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MOVL y+8(FP), BP
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LEAL (DI)(BX*4), DI
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LEAL (SI)(BX*4), SI
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NEGL BX // i = -n
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MOVL $0, CX // c = 0
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JMP E6
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L6: MOVL (SI)(BX*4), AX
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MULL BP
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ADDL CX, AX
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ADCL $0, DX
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ADDL AX, (DI)(BX*4)
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ADCL $0, DX
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MOVL DX, CX
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ADDL $1, BX // i++
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E6: CMPL BX, $0 // i < 0
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JL L6
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MOVL CX, c+12(FP)
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RET
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