1 /* SPDX-License-Identifier: GPL-2.0-only */ !! 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /* !! 2 /* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
3 * linux/arch/arm/lib/muldi3.S <<
4 * <<
5 * Author: Nicolas Pitre <<
6 * Created: Oct 19, 2005 <<
7 * Copyright: Monta Vista Software, Inc. <<
8 */ <<
9 <<
10 #include <linux/linkage.h> <<
11 #include <asm/assembler.h> <<
12 3
13 #ifdef __ARMEB__ !! 4 This file is part of GNU CC.
14 #define xh r0 <<
15 #define xl r1 <<
16 #define yh r2 <<
17 #define yl r3 <<
18 #else <<
19 #define xl r0 <<
20 #define xh r1 <<
21 #define yl r2 <<
22 #define yh r3 <<
23 #endif <<
24 5
25 ENTRY(__muldi3) !! 6 */
26 ENTRY(__aeabi_lmul) <<
27 <<
28 mul xh, yl, xh <<
29 mla xh, xl, yh, xh <<
30 mov ip, xl, lsr #16 <<
31 mov yh, yl, lsr #16 <<
32 bic xl, xl, ip, lsl #16 <<
33 bic yl, yl, yh, lsl #16 <<
34 mla xh, yh, ip, xh <<
35 mul yh, xl, yh <<
36 mul xl, yl, xl <<
37 mul ip, yl, ip <<
38 adds xl, xl, yh, lsl #16 <<
39 adc xh, xh, yh, lsr #16 <<
40 adds xl, xl, ip, lsl #16 <<
41 adc xh, xh, ip, lsr #16 <<
42 ret lr <<
43 7
44 ENDPROC(__muldi3) !! 8 #include <linux/export.h>
45 ENDPROC(__aeabi_lmul) !! 9 .text
>> 10 .align 4
>> 11 .globl __muldi3
>> 12 __muldi3:
>> 13 save %sp, -104, %sp
>> 14 wr %g0, %i1, %y
>> 15 sra %i3, 0x1f, %g2
>> 16 and %i1, %g2, %g2
>> 17 andcc %g0, 0, %g1
>> 18 mulscc %g1, %i3, %g1
>> 19 mulscc %g1, %i3, %g1
>> 20 mulscc %g1, %i3, %g1
>> 21 mulscc %g1, %i3, %g1
>> 22 mulscc %g1, %i3, %g1
>> 23 mulscc %g1, %i3, %g1
>> 24 mulscc %g1, %i3, %g1
>> 25 mulscc %g1, %i3, %g1
>> 26 mulscc %g1, %i3, %g1
>> 27 mulscc %g1, %i3, %g1
>> 28 mulscc %g1, %i3, %g1
>> 29 mulscc %g1, %i3, %g1
>> 30 mulscc %g1, %i3, %g1
>> 31 mulscc %g1, %i3, %g1
>> 32 mulscc %g1, %i3, %g1
>> 33 mulscc %g1, %i3, %g1
>> 34 mulscc %g1, %i3, %g1
>> 35 mulscc %g1, %i3, %g1
>> 36 mulscc %g1, %i3, %g1
>> 37 mulscc %g1, %i3, %g1
>> 38 mulscc %g1, %i3, %g1
>> 39 mulscc %g1, %i3, %g1
>> 40 mulscc %g1, %i3, %g1
>> 41 mulscc %g1, %i3, %g1
>> 42 mulscc %g1, %i3, %g1
>> 43 mulscc %g1, %i3, %g1
>> 44 mulscc %g1, %i3, %g1
>> 45 mulscc %g1, %i3, %g1
>> 46 mulscc %g1, %i3, %g1
>> 47 mulscc %g1, %i3, %g1
>> 48 mulscc %g1, %i3, %g1
>> 49 mulscc %g1, %i3, %g1
>> 50 mulscc %g1, 0, %g1
>> 51 add %g1, %g2, %l2
>> 52 rd %y, %o1
>> 53 mov %o1, %l3
>> 54 mov %i1, %o0
>> 55 mov %i2, %o1
>> 56 umul %o0, %o1, %o0
>> 57 mov %o0, %l0
>> 58 mov %i0, %o0
>> 59 mov %i3, %o1
>> 60 umul %o0, %o1, %o0
>> 61 add %l0, %o0, %l0
>> 62 mov %l2, %i0
>> 63 add %l2, %l0, %i0
>> 64 ret
>> 65 restore %g0, %l3, %o1
>> 66 EXPORT_SYMBOL(__muldi3)
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