OpenCores
URL https://opencores.org/ocsvn/or1k_soc_on_altera_embedded_dev_kit/or1k_soc_on_altera_embedded_dev_kit/trunk

Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

[/] [or1k_soc_on_altera_embedded_dev_kit/] [trunk/] [linux-2.6/] [linux-2.6.24/] [arch/] [x86/] [crypto/] [aes-x86_64-asm_64.S] - Blame information for rev 3

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 3 xianfeng 
/* AES (Rijndael) implementation (FIPS PUB 197) for x86_64
2 
 *
3 
 * Copyright (C) 2005 Andreas Steinmetz,
4 
 *
5 
 * License:
6 
 * This code can be distributed under the terms of the GNU General Public
7 
 * License (GPL) Version 2 provided that the above header down to and
8 
 * including this sentence is retained in full.
9 
 */
10 
 
11 
.extern aes_ft_tab
12 
.extern aes_it_tab
13 
.extern aes_fl_tab
14 
.extern aes_il_tab
15 
 
16 
.text
17 
 
18 
#include
19 
 
20 
#define BASE crypto_tfm_ctx_offset
21 
 
22 
#define R1      %rax
23 
#define R1E     %eax
24 
#define R1X     %ax
25 
#define R1H     %ah
26 
#define R1L     %al
27 
#define R2      %rbx
28 
#define R2E     %ebx
29 
#define R2X     %bx
30 
#define R2H     %bh
31 
#define R2L     %bl
32 
#define R3      %rcx
33 
#define R3E     %ecx
34 
#define R3X     %cx
35 
#define R3H     %ch
36 
#define R3L     %cl
37 
#define R4      %rdx
38 
#define R4E     %edx
39 
#define R4X     %dx
40 
#define R4H     %dh
41 
#define R4L     %dl
42 
#define R5      %rsi
43 
#define R5E     %esi
44 
#define R6      %rdi
45 
#define R6E     %edi
46 
#define R7      %rbp
47 
#define R7E     %ebp
48 
#define R8      %r8
49 
#define R9      %r9
50 
#define R10     %r10
51 
#define R11     %r11
52 
 
53 
#define prologue(FUNC,KEY,B128,B192,r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11) \
54 
        .global FUNC;                   \
55 
        .type   FUNC,@function;         \
56 
        .align  8;                      \
57 
FUNC:   movq    r1,r2;                  \
58 
        movq    r3,r4;                  \
59 
        leaq    BASE+KEY+52(r8),r9;     \
60 
        movq    r10,r11;                \
61 
        movl    (r7),r5 ## E;           \
62 
        movl    4(r7),r1 ## E;          \
63 
        movl    8(r7),r6 ## E;          \
64 
        movl    12(r7),r7 ## E;         \
65 
        movl    BASE(r8),r10 ## E;      \
66 
        xorl    -48(r9),r5 ## E;        \
67 
        xorl    -44(r9),r1 ## E;        \
68 
        xorl    -40(r9),r6 ## E;        \
69 
        xorl    -36(r9),r7 ## E;        \
70 
        cmpl    $24,r10 ## E;           \
71 
        jb      B128;                   \
72 
        leaq    32(r9),r9;              \
73 
        je      B192;                   \
74 
        leaq    32(r9),r9;
75 
 
76 
#define epilogue(r1,r2,r3,r4,r5,r6,r7,r8,r9) \
77 
        movq    r1,r2;                  \
78 
        movq    r3,r4;                  \
79 
        movl    r5 ## E,(r9);           \
80 
        movl    r6 ## E,4(r9);          \
81 
        movl    r7 ## E,8(r9);          \
82 
        movl    r8 ## E,12(r9);         \
83 
        ret;
84 
 
85 
#define round(TAB,OFFSET,r1,r2,r3,r4,r5,r6,r7,r8,ra,rb,rc,rd) \
86 
        movzbl  r2 ## H,r5 ## E;        \
87 
        movzbl  r2 ## L,r6 ## E;        \
88 
        movl    TAB+1024(,r5,4),r5 ## E;\
89 
        movw    r4 ## X,r2 ## X;        \
90 
        movl    TAB(,r6,4),r6 ## E;     \
91 
        roll    $16,r2 ## E;            \
92 
        shrl    $16,r4 ## E;            \
93 
        movzbl  r4 ## H,r7 ## E;        \
94 
        movzbl  r4 ## L,r4 ## E;        \
95 
        xorl    OFFSET(r8),ra ## E;     \
96 
        xorl    OFFSET+4(r8),rb ## E;   \
97 
        xorl    TAB+3072(,r7,4),r5 ## E;\
98 
        xorl    TAB+2048(,r4,4),r6 ## E;\
99 
        movzbl  r1 ## L,r7 ## E;        \
100 
        movzbl  r1 ## H,r4 ## E;        \
101 
        movl    TAB+1024(,r4,4),r4 ## E;\
102 
        movw    r3 ## X,r1 ## X;        \
103 
        roll    $16,r1 ## E;            \
104 
        shrl    $16,r3 ## E;            \
105 
        xorl    TAB(,r7,4),r5 ## E;     \
106 
        movzbl  r3 ## H,r7 ## E;        \
107 
        movzbl  r3 ## L,r3 ## E;        \
108 
        xorl    TAB+3072(,r7,4),r4 ## E;\
109 
        xorl    TAB+2048(,r3,4),r5 ## E;\
110 
        movzbl  r1 ## H,r7 ## E;        \
111 
        movzbl  r1 ## L,r3 ## E;        \
112 
        shrl    $16,r1 ## E;            \
113 
        xorl    TAB+3072(,r7,4),r6 ## E;\
114 
        movl    TAB+2048(,r3,4),r3 ## E;\
115 
        movzbl  r1 ## H,r7 ## E;        \
116 
        movzbl  r1 ## L,r1 ## E;        \
117 
        xorl    TAB+1024(,r7,4),r6 ## E;\
118 
        xorl    TAB(,r1,4),r3 ## E;     \
119 
        movzbl  r2 ## H,r1 ## E;        \
120 
        movzbl  r2 ## L,r7 ## E;        \
121 
        shrl    $16,r2 ## E;            \
122 
        xorl    TAB+3072(,r1,4),r3 ## E;\
123 
        xorl    TAB+2048(,r7,4),r4 ## E;\
124 
        movzbl  r2 ## H,r1 ## E;        \
125 
        movzbl  r2 ## L,r2 ## E;        \
126 
        xorl    OFFSET+8(r8),rc ## E;   \
127 
        xorl    OFFSET+12(r8),rd ## E;  \
128 
        xorl    TAB+1024(,r1,4),r3 ## E;\
129 
        xorl    TAB(,r2,4),r4 ## E;
130 
 
131 
#define move_regs(r1,r2,r3,r4) \
132 
        movl    r3 ## E,r1 ## E;        \
133 
        movl    r4 ## E,r2 ## E;
134 
 
135 
#define entry(FUNC,KEY,B128,B192) \
136 
        prologue(FUNC,KEY,B128,B192,R2,R8,R7,R9,R1,R3,R4,R6,R10,R5,R11)
137 
 
138 
#define return epilogue(R8,R2,R9,R7,R5,R6,R3,R4,R11)
139 
 
140 
#define encrypt_round(TAB,OFFSET) \
141 
        round(TAB,OFFSET,R1,R2,R3,R4,R5,R6,R7,R10,R5,R6,R3,R4) \
142 
        move_regs(R1,R2,R5,R6)
143 
 
144 
#define encrypt_final(TAB,OFFSET) \
145 
        round(TAB,OFFSET,R1,R2,R3,R4,R5,R6,R7,R10,R5,R6,R3,R4)
146 
 
147 
#define decrypt_round(TAB,OFFSET) \
148 
        round(TAB,OFFSET,R2,R1,R4,R3,R6,R5,R7,R10,R5,R6,R3,R4) \
149 
        move_regs(R1,R2,R5,R6)
150 
 
151 
#define decrypt_final(TAB,OFFSET) \
152 
        round(TAB,OFFSET,R2,R1,R4,R3,R6,R5,R7,R10,R5,R6,R3,R4)
153 
 
154 
/* void aes_enc_blk(stuct crypto_tfm *tfm, u8 *out, const u8 *in) */
155 
 
156 
        entry(aes_enc_blk,0,enc128,enc192)
157 
        encrypt_round(aes_ft_tab,-96)
158 
        encrypt_round(aes_ft_tab,-80)
159 
enc192: encrypt_round(aes_ft_tab,-64)
160 
        encrypt_round(aes_ft_tab,-48)
161 
enc128: encrypt_round(aes_ft_tab,-32)
162 
        encrypt_round(aes_ft_tab,-16)
163 
        encrypt_round(aes_ft_tab,  0)
164 
        encrypt_round(aes_ft_tab, 16)
165 
        encrypt_round(aes_ft_tab, 32)
166 
        encrypt_round(aes_ft_tab, 48)
167 
        encrypt_round(aes_ft_tab, 64)
168 
        encrypt_round(aes_ft_tab, 80)
169 
        encrypt_round(aes_ft_tab, 96)
170 
        encrypt_final(aes_fl_tab,112)
171 
        return
172 
 
173 
/* void aes_dec_blk(struct crypto_tfm *tfm, u8 *out, const u8 *in) */
174 
 
175 
        entry(aes_dec_blk,240,dec128,dec192)
176 
        decrypt_round(aes_it_tab,-96)
177 
        decrypt_round(aes_it_tab,-80)
178 
dec192: decrypt_round(aes_it_tab,-64)
179 
        decrypt_round(aes_it_tab,-48)
180 
dec128: decrypt_round(aes_it_tab,-32)
181 
        decrypt_round(aes_it_tab,-16)
182 
        decrypt_round(aes_it_tab,  0)
183 
        decrypt_round(aes_it_tab, 16)
184 
        decrypt_round(aes_it_tab, 32)
185 
        decrypt_round(aes_it_tab, 48)
186 
        decrypt_round(aes_it_tab, 64)
187 
        decrypt_round(aes_it_tab, 80)
188 
        decrypt_round(aes_it_tab, 96)
189 
        decrypt_final(aes_il_tab,112)
190 
        return

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.