File: arith_riscv64.s

package info (click to toggle)
golang-github-cronokirby-saferith 0.33.0-6
  • links: PTS, VCS
  • area: main
  • in suites: sid, trixie
  • size: 444 kB
  • sloc: asm: 2,297; makefile: 2
file content (47 lines) | stat: -rw-r--r-- 969 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
// Copyright 2020 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_go file.

//go:build !math_big_pure_go && riscv64
// +build !math_big_pure_go,riscv64

#include "textflag.h"

// This file provides fast assembly versions for the elementary
// arithmetic operations on vectors implemented in arith.go.

// func mulWW(x, y Word) (z1, z0 Word)
TEXT ·mulWW(SB),NOSPLIT,$0
	MOV	x+0(FP), X5
	MOV	y+8(FP), X6
	MULHU	X5, X6, X7
	MUL	X5, X6, X8
	MOV	X7, z1+16(FP)
	MOV	X8, z0+24(FP)
	RET


TEXT ·addVV(SB),NOSPLIT,$0
	JMP ·addVV_g(SB)

TEXT ·subVV(SB),NOSPLIT,$0
	JMP ·subVV_g(SB)

TEXT ·addVW(SB),NOSPLIT,$0
	JMP ·addVW_g(SB)

TEXT ·subVW(SB),NOSPLIT,$0
	JMP ·subVW_g(SB)

TEXT ·shlVU(SB),NOSPLIT,$0
	JMP ·shlVU_g(SB)

TEXT ·shrVU(SB),NOSPLIT,$0
	JMP ·shrVU_g(SB)

TEXT ·mulAddVWW(SB),NOSPLIT,$0
	JMP ·mulAddVWW_g(SB)

TEXT ·addMulVVW(SB),NOSPLIT,$0
	JMP ·addMulVVW_g(SB)