3 # MD5 optimized for AMD64.
5 # Author: Marc Bevand <bevand_m (at) epita.fr>
6 # Licence: I hereby disclaim the copyright on this code and place it
7 # in the public domain.
15 # dst = x + ((dst + F(x,y,z) + X[k] + T_i) <<< s)
17 # %r11d = z' (copy of z for the next step)
18 # Each round1_step() takes about 5.71 clocks (9 instructions, 1.58 IPC)
21 my ($pos, $dst, $x, $y, $z, $k_next, $T_i, $s) = @_;
22 $code .= " mov 0*4(%rsi), %r10d /* (NEXT STEP) X[0] */\n" if ($pos == -1);
23 $code .= " mov %edx, %r11d /* (NEXT STEP) z' = %edx */\n" if ($pos == -1);
25 xor $y, %r11d /* y ^ ... */
26 lea $T_i($dst,%r10d),$dst /* Const + dst + ... */
27 and $x, %r11d /* x & ... */
28 xor $z, %r11d /* z ^ ... */
29 mov $k_next*4(%rsi),%r10d /* (NEXT STEP) X[$k_next] */
30 add %r11d, $dst /* dst += ... */
31 rol \$$s, $dst /* dst <<< s */
32 mov $y, %r11d /* (NEXT STEP) z' = $y */
33 add $x, $dst /* dst += x */
38 # dst = x + ((dst + G(x,y,z) + X[k] + T_i) <<< s)
40 # %r11d = y' (copy of y for the next step)
41 # Each round2_step() takes about 6.22 clocks (9 instructions, 1.45 IPC)
44 my ($pos, $dst, $x, $y, $z, $k_next, $T_i, $s) = @_;
45 $code .= " mov 1*4(%rsi), %r10d /* (NEXT STEP) X[1] */\n" if ($pos == -1);
46 $code .= " mov %ecx, %r11d /* (NEXT STEP) y' = %ecx */\n" if ($pos == -1);
48 xor $x, %r11d /* x ^ ... */
49 lea $T_i($dst,%r10d),$dst /* Const + dst + ... */
50 and $z, %r11d /* z & ... */
51 xor $y, %r11d /* y ^ ... */
52 mov $k_next*4(%rsi),%r10d /* (NEXT STEP) X[$k_next] */
53 add %r11d, $dst /* dst += ... */
54 rol \$$s, $dst /* dst <<< s */
55 mov $x, %r11d /* (NEXT STEP) y' = $x */
56 add $x, $dst /* dst += x */
61 # dst = x + ((dst + H(x,y,z) + X[k] + T_i) <<< s)
63 # %r11d = y' (copy of y for the next step)
64 # Each round3_step() takes about 4.26 clocks (8 instructions, 1.88 IPC)
67 my ($pos, $dst, $x, $y, $z, $k_next, $T_i, $s) = @_;
68 $code .= " mov 5*4(%rsi), %r10d /* (NEXT STEP) X[5] */\n" if ($pos == -1);
69 $code .= " mov %ecx, %r11d /* (NEXT STEP) y' = %ecx */\n" if ($pos == -1);
71 lea $T_i($dst,%r10d),$dst /* Const + dst + ... */
72 mov $k_next*4(%rsi),%r10d /* (NEXT STEP) X[$k_next] */
73 xor $z, %r11d /* z ^ ... */
74 xor $x, %r11d /* x ^ ... */
75 add %r11d, $dst /* dst += ... */
76 rol \$$s, $dst /* dst <<< s */
77 mov $x, %r11d /* (NEXT STEP) y' = $x */
78 add $x, $dst /* dst += x */
83 # dst = x + ((dst + I(x,y,z) + X[k] + T_i) <<< s)
85 # %r11d = not z' (copy of not z for the next step)
86 # Each round4_step() takes about 5.27 clocks (9 instructions, 1.71 IPC)
89 my ($pos, $dst, $x, $y, $z, $k_next, $T_i, $s) = @_;
90 $code .= " mov 0*4(%rsi), %r10d /* (NEXT STEP) X[0] */\n" if ($pos == -1);
91 $code .= " mov \$0xffffffff, %r11d\n" if ($pos == -1);
92 $code .= " xor %edx, %r11d /* (NEXT STEP) not z' = not %edx*/\n"
95 lea $T_i($dst,%r10d),$dst /* Const + dst + ... */
96 or $x, %r11d /* x | ... */
97 xor $y, %r11d /* y ^ ... */
98 add %r11d, $dst /* dst += ... */
99 mov $k_next*4(%rsi),%r10d /* (NEXT STEP) X[$k_next] */
100 mov \$0xffffffff, %r11d
101 rol \$$s, $dst /* dst <<< s */
102 xor $y, %r11d /* (NEXT STEP) not z' = not $y */
103 add $x, $dst /* dst += x */
108 open STDOUT,">$output" or die "can't open $output: $!";
114 .globl md5_block_asm_host_order
115 .type md5_block_asm_host_order,\@function
116 md5_block_asm_host_order:
124 # rdi = arg #1 (ctx, MD5_CTX pointer)
125 # rsi = arg #2 (ptr, data pointer)
126 # rdx = arg #3 (nbr, number of 16-word blocks to process)
127 mov %rdi, %rbp # rbp = ctx
128 shl \$6, %rdx # rdx = nbr in bytes
129 lea (%rsi,%rdx), %rdi # rdi = end
130 mov 0*4(%rbp), %eax # eax = ctx->A
131 mov 1*4(%rbp), %ebx # ebx = ctx->B
132 mov 2*4(%rbp), %ecx # ecx = ctx->C
133 mov 3*4(%rbp), %edx # edx = ctx->D
142 cmp %rdi, %rsi # cmp end with ptr
143 je 1f # jmp if ptr == end
145 # BEGIN of loop over 16-word blocks
146 2: # save old values of A, B, C, D
152 round1_step(-1,'%eax','%ebx','%ecx','%edx', '1','0xd76aa478', '7');
153 round1_step( 0,'%edx','%eax','%ebx','%ecx', '2','0xe8c7b756','12');
154 round1_step( 0,'%ecx','%edx','%eax','%ebx', '3','0x242070db','17');
155 round1_step( 0,'%ebx','%ecx','%edx','%eax', '4','0xc1bdceee','22');
156 round1_step( 0,'%eax','%ebx','%ecx','%edx', '5','0xf57c0faf', '7');
157 round1_step( 0,'%edx','%eax','%ebx','%ecx', '6','0x4787c62a','12');
158 round1_step( 0,'%ecx','%edx','%eax','%ebx', '7','0xa8304613','17');
159 round1_step( 0,'%ebx','%ecx','%edx','%eax', '8','0xfd469501','22');
160 round1_step( 0,'%eax','%ebx','%ecx','%edx', '9','0x698098d8', '7');
161 round1_step( 0,'%edx','%eax','%ebx','%ecx','10','0x8b44f7af','12');
162 round1_step( 0,'%ecx','%edx','%eax','%ebx','11','0xffff5bb1','17');
163 round1_step( 0,'%ebx','%ecx','%edx','%eax','12','0x895cd7be','22');
164 round1_step( 0,'%eax','%ebx','%ecx','%edx','13','0x6b901122', '7');
165 round1_step( 0,'%edx','%eax','%ebx','%ecx','14','0xfd987193','12');
166 round1_step( 0,'%ecx','%edx','%eax','%ebx','15','0xa679438e','17');
167 round1_step( 1,'%ebx','%ecx','%edx','%eax', '0','0x49b40821','22');
169 round2_step(-1,'%eax','%ebx','%ecx','%edx', '6','0xf61e2562', '5');
170 round2_step( 0,'%edx','%eax','%ebx','%ecx','11','0xc040b340', '9');
171 round2_step( 0,'%ecx','%edx','%eax','%ebx', '0','0x265e5a51','14');
172 round2_step( 0,'%ebx','%ecx','%edx','%eax', '5','0xe9b6c7aa','20');
173 round2_step( 0,'%eax','%ebx','%ecx','%edx','10','0xd62f105d', '5');
174 round2_step( 0,'%edx','%eax','%ebx','%ecx','15', '0x2441453', '9');
175 round2_step( 0,'%ecx','%edx','%eax','%ebx', '4','0xd8a1e681','14');
176 round2_step( 0,'%ebx','%ecx','%edx','%eax', '9','0xe7d3fbc8','20');
177 round2_step( 0,'%eax','%ebx','%ecx','%edx','14','0x21e1cde6', '5');
178 round2_step( 0,'%edx','%eax','%ebx','%ecx', '3','0xc33707d6', '9');
179 round2_step( 0,'%ecx','%edx','%eax','%ebx', '8','0xf4d50d87','14');
180 round2_step( 0,'%ebx','%ecx','%edx','%eax','13','0x455a14ed','20');
181 round2_step( 0,'%eax','%ebx','%ecx','%edx', '2','0xa9e3e905', '5');
182 round2_step( 0,'%edx','%eax','%ebx','%ecx', '7','0xfcefa3f8', '9');
183 round2_step( 0,'%ecx','%edx','%eax','%ebx','12','0x676f02d9','14');
184 round2_step( 1,'%ebx','%ecx','%edx','%eax', '0','0x8d2a4c8a','20');
186 round3_step(-1,'%eax','%ebx','%ecx','%edx', '8','0xfffa3942', '4');
187 round3_step( 0,'%edx','%eax','%ebx','%ecx','11','0x8771f681','11');
188 round3_step( 0,'%ecx','%edx','%eax','%ebx','14','0x6d9d6122','16');
189 round3_step( 0,'%ebx','%ecx','%edx','%eax', '1','0xfde5380c','23');
190 round3_step( 0,'%eax','%ebx','%ecx','%edx', '4','0xa4beea44', '4');
191 round3_step( 0,'%edx','%eax','%ebx','%ecx', '7','0x4bdecfa9','11');
192 round3_step( 0,'%ecx','%edx','%eax','%ebx','10','0xf6bb4b60','16');
193 round3_step( 0,'%ebx','%ecx','%edx','%eax','13','0xbebfbc70','23');
194 round3_step( 0,'%eax','%ebx','%ecx','%edx', '0','0x289b7ec6', '4');
195 round3_step( 0,'%edx','%eax','%ebx','%ecx', '3','0xeaa127fa','11');
196 round3_step( 0,'%ecx','%edx','%eax','%ebx', '6','0xd4ef3085','16');
197 round3_step( 0,'%ebx','%ecx','%edx','%eax', '9', '0x4881d05','23');
198 round3_step( 0,'%eax','%ebx','%ecx','%edx','12','0xd9d4d039', '4');
199 round3_step( 0,'%edx','%eax','%ebx','%ecx','15','0xe6db99e5','11');
200 round3_step( 0,'%ecx','%edx','%eax','%ebx', '2','0x1fa27cf8','16');
201 round3_step( 1,'%ebx','%ecx','%edx','%eax', '0','0xc4ac5665','23');
203 round4_step(-1,'%eax','%ebx','%ecx','%edx', '7','0xf4292244', '6');
204 round4_step( 0,'%edx','%eax','%ebx','%ecx','14','0x432aff97','10');
205 round4_step( 0,'%ecx','%edx','%eax','%ebx', '5','0xab9423a7','15');
206 round4_step( 0,'%ebx','%ecx','%edx','%eax','12','0xfc93a039','21');
207 round4_step( 0,'%eax','%ebx','%ecx','%edx', '3','0x655b59c3', '6');
208 round4_step( 0,'%edx','%eax','%ebx','%ecx','10','0x8f0ccc92','10');
209 round4_step( 0,'%ecx','%edx','%eax','%ebx', '1','0xffeff47d','15');
210 round4_step( 0,'%ebx','%ecx','%edx','%eax', '8','0x85845dd1','21');
211 round4_step( 0,'%eax','%ebx','%ecx','%edx','15','0x6fa87e4f', '6');
212 round4_step( 0,'%edx','%eax','%ebx','%ecx', '6','0xfe2ce6e0','10');
213 round4_step( 0,'%ecx','%edx','%eax','%ebx','13','0xa3014314','15');
214 round4_step( 0,'%ebx','%ecx','%edx','%eax', '4','0x4e0811a1','21');
215 round4_step( 0,'%eax','%ebx','%ecx','%edx','11','0xf7537e82', '6');
216 round4_step( 0,'%edx','%eax','%ebx','%ecx', '2','0xbd3af235','10');
217 round4_step( 0,'%ecx','%edx','%eax','%ebx', '9','0x2ad7d2bb','15');
218 round4_step( 1,'%ebx','%ecx','%edx','%eax', '0','0xeb86d391','21');
220 # add old values of A, B, C, D
227 add \$64, %rsi # ptr += 64
228 cmp %rdi, %rsi # cmp end with ptr
229 jb 2b # jmp if ptr < end
230 # END of loop over 16-word blocks
232 1: pop %rbp # restore ctx
233 mov %eax, 0*4(%rbp) # ctx->A = A
234 mov %ebx, 1*4(%rbp) # ctx->B = B
235 mov %ecx, 2*4(%rbp) # ctx->C = C
236 mov %edx, 3*4(%rbp) # ctx->D = D
245 .L_md5_block_asm_host_order_end:
246 .size md5_block_asm_host_order,.L_md5_block_asm_host_order_end-md5_block_asm_host_order