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
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
|
/**********************************************************************
Copyright(c) 2019 Arm Corporation All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
* Neither the name of Arm Corporation nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**********************************************************************/
.arch armv8-a+crc
.text
.align 2
#include "lz0a_const_aarch64.h"
#include "data_struct_aarch64.h"
#include "huffman_aarch64.h"
#include "bitbuf2_aarch64.h"
#include "stdmac_aarch64.h"
/*
declare Macros
*/
.macro declare_generic_reg name:req,reg:req,default:req
\name .req \default\reg
w_\name .req w\reg
x_\name .req x\reg
.endm
.global isal_deflate_hash_aarch64
.type isal_deflate_hash_aarch64, %function
/*
void isal_deflate_hash_aarch64(uint16_t * hash_table, uint32_t hash_mask,
uint32_t current_index, uint8_t * dict, uint32_t dict_len)
*/
declare_generic_reg hash_table, 0,x
declare_generic_reg hash_mask, 1,w
declare_generic_reg current_index, 2,w
declare_generic_reg dict, 3,x
declare_generic_reg dict_len, 4,w
declare_generic_reg next_in 3,x
declare_generic_reg end_in 6,x
declare_generic_reg ind 5,w
declare_generic_reg hash 2,w
declare_generic_reg literal 2,w
#define SHORTEST_MATCH #4
isal_deflate_hash_aarch64:
sub ind, current_index, dict_len
and ind,ind,0xffff
uxtw x_dict_len, dict_len
sub x_dict_len, x_dict_len, SHORTEST_MATCH
add end_in, dict, x_dict_len
cmp next_in, end_in
bcs exit_func
mov w7, 0
loop_start:
ldr literal, [next_in]
add next_in, next_in, 1
cmp next_in, end_in
crc32cw hash, w7, literal
and hash, hash, hash_mask
strh ind, [hash_table, x_hash, lsl 1]
add ind,ind,1
bne loop_start
exit_func:
ret
.size isal_deflate_hash_aarch64, .-isal_deflate_hash_aarch64
|
