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  1 a25e7f2f 2004-04-21 devnull .text

  2 a25e7f2f 2004-04-21 devnull 

  3 a25e7f2f 2004-04-21 devnull .p2align 2,0x90

  4 a25e7f2f 2004-04-21 devnull .globl _sha1block

  5 a25e7f2f 2004-04-21 devnull 	.type _sha1block, @function

  6 a25e7f2f 2004-04-21 devnull _sha1block:

  7 a25e7f2f 2004-04-21 devnull 

  8 a25e7f2f 2004-04-21 devnull /* x = (wp[off-f] ^ wp[off-8] ^ wp[off-14] ^ wp[off-16]) <<< 1;

  9 a25e7f2f 2004-04-21 devnull  * wp[off] = x;

 10 a25e7f2f 2004-04-21 devnull  * x += A <<< 5;

 11 a25e7f2f 2004-04-21 devnull  * E += 0xca62c1d6 + x;

 12 a25e7f2f 2004-04-21 devnull  * x = FN(B,C,D);

 13 a25e7f2f 2004-04-21 devnull  * E += x;

 14 a25e7f2f 2004-04-21 devnull  * B >>> 2

 15 a25e7f2f 2004-04-21 devnull  */

 16 a25e7f2f 2004-04-21 devnull #define BSWAPDI	BYTE $0x0f; BYTE $0xcf;

 17 a25e7f2f 2004-04-21 devnull 

 18 a25e7f2f 2004-04-21 devnull #define BODY(off,FN,V,A,B,C,D,E)\

 19 a25e7f2f 2004-04-21 devnull 	movl (off-64)(%ebp), %edi;\

 20 a25e7f2f 2004-04-21 devnull 	xorl (off-56)(%ebp), %edi;\

 21 a25e7f2f 2004-04-21 devnull 	xorl (off-32)(%ebp), %edi;\

 22 a25e7f2f 2004-04-21 devnull 	xorl (off-12)(%ebp), %edi;\

 23 a25e7f2f 2004-04-21 devnull 	roll $1, %edi;\

 24 a25e7f2f 2004-04-21 devnull 	movl %edi, off(%ebp);\

 25 a25e7f2f 2004-04-21 devnull 	leal V(%edi, E, 1), E;\

 26 a25e7f2f 2004-04-21 devnull 	movl A, %edi;\

 27 a25e7f2f 2004-04-21 devnull 	roll $5, %edi;\

 28 a25e7f2f 2004-04-21 devnull 	addl %edi, E;\

 29 a25e7f2f 2004-04-21 devnull 	FN(B,C,D)\

 30 a25e7f2f 2004-04-21 devnull 	addl %edi, E;\

 31 a25e7f2f 2004-04-21 devnull 	rorl $2, B;\

 32 a25e7f2f 2004-04-21 devnull 

 33 a25e7f2f 2004-04-21 devnull #define BODY0(off,FN,V,A,B,C,D,E)\

 34 a25e7f2f 2004-04-21 devnull 	movl off(%ebx), %edi;\

 35 a25e7f2f 2004-04-21 devnull 	bswap %edi;\

 36 a25e7f2f 2004-04-21 devnull 	movl %edi, off(%ebp);\

 37 a25e7f2f 2004-04-21 devnull 	leal V(%edi,E,1), E;\

 38 a25e7f2f 2004-04-21 devnull 	movl A, %edi;\

 39 a25e7f2f 2004-04-21 devnull 	roll $5,%edi;\

 40 a25e7f2f 2004-04-21 devnull 	addl %edi,E;\

 41 a25e7f2f 2004-04-21 devnull 	FN(B,C,D)\

 42 a25e7f2f 2004-04-21 devnull 	addl %edi,E;\

 43 a25e7f2f 2004-04-21 devnull 	rorl $2,B;\

 44 a25e7f2f 2004-04-21 devnull 

 45 a25e7f2f 2004-04-21 devnull /*

 46 a25e7f2f 2004-04-21 devnull  * fn1 = (((C^D)&B)^D);

 47 a25e7f2f 2004-04-21 devnull  */

 48 a25e7f2f 2004-04-21 devnull #define FN1(B,C,D)\

 49 a25e7f2f 2004-04-21 devnull 	movl C, %edi;\

 50 a25e7f2f 2004-04-21 devnull 	xorl D, %edi;\

 51 a25e7f2f 2004-04-21 devnull 	andl B, %edi;\

 52 a25e7f2f 2004-04-21 devnull 	xorl D, %edi;\

 53 a25e7f2f 2004-04-21 devnull 

 54 a25e7f2f 2004-04-21 devnull /*

 55 a25e7f2f 2004-04-21 devnull  * fn24 = B ^ C ^ D

 56 a25e7f2f 2004-04-21 devnull  */

 57 a25e7f2f 2004-04-21 devnull #define FN24(B,C,D)\

 58 a25e7f2f 2004-04-21 devnull 	movl B, %edi;\

 59 a25e7f2f 2004-04-21 devnull 	xorl C, %edi;\

 60 a25e7f2f 2004-04-21 devnull 	xorl D, %edi;\

 61 a25e7f2f 2004-04-21 devnull 

 62 a25e7f2f 2004-04-21 devnull /*

 63 a25e7f2f 2004-04-21 devnull  * fn3 = ((B ^ C) & (D ^= B)) ^ B

 64 a25e7f2f 2004-04-21 devnull  * D ^= B to restore D

 65 a25e7f2f 2004-04-21 devnull  */

 66 a25e7f2f 2004-04-21 devnull #define FN3(B,C,D)\

 67 a25e7f2f 2004-04-21 devnull 	movl B, %edi;\

 68 a25e7f2f 2004-04-21 devnull 	xorl C, %edi;\

 69 a25e7f2f 2004-04-21 devnull 	xorl B, D;\

 70 a25e7f2f 2004-04-21 devnull 	andl D, %edi;\

 71 a25e7f2f 2004-04-21 devnull 	xorl B, %edi;\

 72 a25e7f2f 2004-04-21 devnull 	xorl B, D;\

 73 a25e7f2f 2004-04-21 devnull 

 74 a25e7f2f 2004-04-21 devnull /*

 75 a25e7f2f 2004-04-21 devnull  * stack offsets

 76 a25e7f2f 2004-04-21 devnull  * void sha1block(uchar *DATA, int LEN, ulong *STATE)

 77 a25e7f2f 2004-04-21 devnull  */

 78 2f05c0e8 2004-05-09 devnull #define STACKSIZE (48+80*4)

 79 2f05c0e8 2004-05-09 devnull #define	DATA	(STACKSIZE+8)

 80 2f05c0e8 2004-05-09 devnull #define	LEN	(STACKSIZE+12)

 81 2f05c0e8 2004-05-09 devnull #define	STATE	(STACKSIZE+16)

 82 a25e7f2f 2004-04-21 devnull 

 83 a25e7f2f 2004-04-21 devnull /*

 84 a25e7f2f 2004-04-21 devnull  * stack offsets for locals

 85 a25e7f2f 2004-04-21 devnull  * ulong w[80];

 86 a25e7f2f 2004-04-21 devnull  * uchar *edata;

 87 a25e7f2f 2004-04-21 devnull  * ulong *w15, *w40, *w60, *w80;

 88 a25e7f2f 2004-04-21 devnull  * register local

 89 a25e7f2f 2004-04-21 devnull  * ulong *wp = %ebp

 90 a25e7f2f 2004-04-21 devnull  * ulong a = eax, b = ebx, c = ecx, d = edx, e = esi

 91 a25e7f2f 2004-04-21 devnull  * ulong tmp = edi

 92 a25e7f2f 2004-04-21 devnull  */

 93 2f05c0e8 2004-05-09 devnull #define WARRAY	(STACKSIZE-4-(80*4))

 94 2f05c0e8 2004-05-09 devnull #define TMP1	(STACKSIZE-8-(80*4))

 95 2f05c0e8 2004-05-09 devnull #define TMP2	(STACKSIZE-12-(80*4))

 96 2f05c0e8 2004-05-09 devnull #define W15	(STACKSIZE-16-(80*4))

 97 2f05c0e8 2004-05-09 devnull #define W40	(STACKSIZE-20-(80*4))

 98 2f05c0e8 2004-05-09 devnull #define W60	(STACKSIZE-24-(80*4))

 99 2f05c0e8 2004-05-09 devnull #define W80	(STACKSIZE-28-(80*4))

100 2f05c0e8 2004-05-09 devnull #define EDATA	(STACKSIZE-32-(80*4))

101 2f05c0e8 2004-05-09 devnull #define OLDEBX	(STACKSIZE-36-(80*4))

102 2f05c0e8 2004-05-09 devnull #define OLDESI	(STACKSIZE-40-(80*4))

103 2f05c0e8 2004-05-09 devnull #define OLDEDI	(STACKSIZE-44-(80*4))

104 a25e7f2f 2004-04-21 devnull 

105 a25e7f2f 2004-04-21 devnull 	/* Prelude */

106 a25e7f2f 2004-04-21 devnull 	pushl %ebp

107 2f05c0e8 2004-05-09 devnull 	subl $(STACKSIZE), %esp

108 2f05c0e8 2004-05-09 devnull 

109 a25e7f2f 2004-04-21 devnull 	mov %ebx, OLDEBX(%esp)

110 a25e7f2f 2004-04-21 devnull 	mov %esi, OLDESI(%esp)

111 a25e7f2f 2004-04-21 devnull 	mov %edi, OLDEDI(%esp)

112 a25e7f2f 2004-04-21 devnull 

113 a25e7f2f 2004-04-21 devnull 	movl DATA(%esp), %eax

114 a25e7f2f 2004-04-21 devnull 	addl LEN(%esp), %eax

115 a25e7f2f 2004-04-21 devnull 	movl %eax, EDATA(%esp)

116 a25e7f2f 2004-04-21 devnull 

117 a25e7f2f 2004-04-21 devnull 	leal (WARRAY+15*4)(%esp), %edi	/* aw15 */

118 a25e7f2f 2004-04-21 devnull 	movl %edi, W15(%esp)

119 a25e7f2f 2004-04-21 devnull 	leal (WARRAY+40*4)(%esp), %edx	/* aw40 */

120 a25e7f2f 2004-04-21 devnull 	movl %edx, W40(%esp)

121 a25e7f2f 2004-04-21 devnull 	leal (WARRAY+60*4)(%esp), %ecx	/* aw60 */

122 a25e7f2f 2004-04-21 devnull 	movl %ecx, W60(%esp)

123 a25e7f2f 2004-04-21 devnull 	leal (WARRAY+80*4)(%esp), %edi	/* aw80 */

124 a25e7f2f 2004-04-21 devnull 	movl %edi, W80(%esp)

125 a25e7f2f 2004-04-21 devnull 

126 6a4599d7 2005-05-12 devnull 0:

127 a25e7f2f 2004-04-21 devnull 	leal WARRAY(%esp), %ebp		/* warray */

128 a25e7f2f 2004-04-21 devnull 

129 a25e7f2f 2004-04-21 devnull 	movl STATE(%esp), %edi		/* state */

130 a25e7f2f 2004-04-21 devnull 	movl (%edi),%eax

131 a25e7f2f 2004-04-21 devnull 	movl 4(%edi),%ebx

132 a25e7f2f 2004-04-21 devnull 	movl %ebx, TMP1(%esp)		/* tmp1 */

133 a25e7f2f 2004-04-21 devnull 	movl 8(%edi), %ecx

134 a25e7f2f 2004-04-21 devnull 	movl 12(%edi), %edx

135 a25e7f2f 2004-04-21 devnull 	movl 16(%edi), %esi

136 a25e7f2f 2004-04-21 devnull 

137 a25e7f2f 2004-04-21 devnull 	movl DATA(%esp), %ebx		/* data */

138 a25e7f2f 2004-04-21 devnull 

139 6a4599d7 2005-05-12 devnull 1:

140 a25e7f2f 2004-04-21 devnull 	BODY0(0,FN1,0x5a827999,%eax,TMP1(%esp),%ecx,%edx,%esi)

141 a25e7f2f 2004-04-21 devnull 	movl %esi,TMP2(%esp)

142 a25e7f2f 2004-04-21 devnull 	BODY0(4,FN1,0x5a827999,%esi,%eax,TMP1(%esp),%ecx,%edx)

143 a25e7f2f 2004-04-21 devnull 	movl TMP1(%esp),%esi

144 a25e7f2f 2004-04-21 devnull 	BODY0(8,FN1,0x5a827999,%edx,TMP2(%esp),%eax,%esi,%ecx)

145 a25e7f2f 2004-04-21 devnull 	BODY0(12,FN1,0x5a827999,%ecx,%edx,TMP2(%esp),%eax,%esi)

146 a25e7f2f 2004-04-21 devnull 	movl %esi,TMP1(%esp)

147 a25e7f2f 2004-04-21 devnull 	BODY0(16,FN1,0x5a827999,%esi,%ecx,%edx,TMP2(%esp),%eax)

148 a25e7f2f 2004-04-21 devnull 	movl TMP2(%esp),%esi

149 a25e7f2f 2004-04-21 devnull 

150 a25e7f2f 2004-04-21 devnull 	addl $20, %ebx

151 a25e7f2f 2004-04-21 devnull 	addl $20, %ebp

152 a25e7f2f 2004-04-21 devnull 	cmpl W15(%esp), %ebp	/* w15 */

153 6a4599d7 2005-05-12 devnull 	jb 1b

154 a25e7f2f 2004-04-21 devnull 

155 a25e7f2f 2004-04-21 devnull 	BODY0(0,FN1,0x5a827999,%eax,TMP1(%esp),%ecx,%edx,%esi)

156 a25e7f2f 2004-04-21 devnull 	addl $4, %ebx

157 a25e7f2f 2004-04-21 devnull 	MOVL %ebx, DATA(%esp)	/* data */

158 a25e7f2f 2004-04-21 devnull 	MOVL TMP1(%esp),%ebx

159 a25e7f2f 2004-04-21 devnull 

160 a25e7f2f 2004-04-21 devnull 	BODY(4,FN1,0x5a827999,%esi,%eax,%ebx,%ecx,%edx)

161 a25e7f2f 2004-04-21 devnull 	BODY(8,FN1,0x5a827999,%edx,%esi,%eax,%ebx,%ecx)

162 a25e7f2f 2004-04-21 devnull 	BODY(12,FN1,0x5a827999,%ecx,%edx,%esi,%eax,%ebx)

163 a25e7f2f 2004-04-21 devnull 	BODY(16,FN1,0x5a827999,%ebx,%ecx,%edx,%esi,%eax)

164 a25e7f2f 2004-04-21 devnull 

165 a25e7f2f 2004-04-21 devnull 	addl $20, %ebp

166 a25e7f2f 2004-04-21 devnull 

167 6a4599d7 2005-05-12 devnull 2:

168 a25e7f2f 2004-04-21 devnull 	BODY(0,FN24,0x6ed9eba1,%eax,%ebx,%ecx,%edx,%esi)

169 a25e7f2f 2004-04-21 devnull 	BODY(4,FN24,0x6ed9eba1,%esi,%eax,%ebx,%ecx,%edx)

170 a25e7f2f 2004-04-21 devnull 	BODY(8,FN24,0x6ed9eba1,%edx,%esi,%eax,%ebx,%ecx)

171 a25e7f2f 2004-04-21 devnull 	BODY(12,FN24,0x6ed9eba1,%ecx,%edx,%esi,%eax,%ebx)

172 a25e7f2f 2004-04-21 devnull 	BODY(16,FN24,0x6ed9eba1,%ebx,%ecx,%edx,%esi,%eax)

173 a25e7f2f 2004-04-21 devnull 

174 a25e7f2f 2004-04-21 devnull 	addl $20,%ebp

175 a25e7f2f 2004-04-21 devnull 	cmpl W40(%esp), %ebp

176 6a4599d7 2005-05-12 devnull 	jb 2b

177 a25e7f2f 2004-04-21 devnull 

178 6a4599d7 2005-05-12 devnull 3:

179 a25e7f2f 2004-04-21 devnull 	BODY(0,FN3,0x8f1bbcdc,%eax,%ebx,%ecx,%edx,%esi)

180 a25e7f2f 2004-04-21 devnull 	BODY(4,FN3,0x8f1bbcdc,%esi,%eax,%ebx,%ecx,%edx)

181 a25e7f2f 2004-04-21 devnull 	BODY(8,FN3,0x8f1bbcdc,%edx,%esi,%eax,%ebx,%ecx)

182 a25e7f2f 2004-04-21 devnull 	BODY(12,FN3,0x8f1bbcdc,%ecx,%edx,%esi,%eax,%ebx)

183 a25e7f2f 2004-04-21 devnull 	BODY(16,FN3,0x8f1bbcdc,%ebx,%ecx,%edx,%esi,%eax)

184 a25e7f2f 2004-04-21 devnull 

185 a25e7f2f 2004-04-21 devnull 	addl $20, %ebp

186 a25e7f2f 2004-04-21 devnull 	cmpl W60(%esp), %ebp 	/* w60 */

187 6a4599d7 2005-05-12 devnull 	jb 3b

188 a25e7f2f 2004-04-21 devnull 

189 6a4599d7 2005-05-12 devnull 4:

190 a25e7f2f 2004-04-21 devnull 	BODY(0,FN24,0xca62c1d6,%eax,%ebx,%ecx,%edx,%esi)

191 a25e7f2f 2004-04-21 devnull 	BODY(4,FN24,0xca62c1d6,%esi,%eax,%ebx,%ecx,%edx)

192 a25e7f2f 2004-04-21 devnull 	BODY(8,FN24,0xca62c1d6,%edx,%esi,%eax,%ebx,%ecx)

193 a25e7f2f 2004-04-21 devnull 	BODY(12,FN24,0xca62c1d6,%ecx,%edx,%esi,%eax,%ebx)

194 a25e7f2f 2004-04-21 devnull 	BODY(16,FN24,0xca62c1d6,%ebx,%ecx,%edx,%esi,%eax)

195 a25e7f2f 2004-04-21 devnull 

196 a25e7f2f 2004-04-21 devnull 	addl $20, %ebp

197 a25e7f2f 2004-04-21 devnull 	cmpl W80(%esp), %ebp 	/* w80 */

198 6a4599d7 2005-05-12 devnull 	jb 4b

199 a25e7f2f 2004-04-21 devnull 

200 a25e7f2f 2004-04-21 devnull 	movl STATE(%esp), %edi	/* state */

201 a25e7f2f 2004-04-21 devnull 	addl %eax, 0(%edi)

202 a25e7f2f 2004-04-21 devnull 	addl %ebx, 4(%edi)

203 a25e7f2f 2004-04-21 devnull 	addl %ecx, 8(%edi)

204 a25e7f2f 2004-04-21 devnull 	addl %edx, 12(%edi)

205 a25e7f2f 2004-04-21 devnull 	addl %esi, 16(%edi)

206 a25e7f2f 2004-04-21 devnull 

207 a25e7f2f 2004-04-21 devnull 	movl EDATA(%esp), %edi	/* edata */

208 a25e7f2f 2004-04-21 devnull 	cmpl %edi, DATA(%esp)	/* data */

209 6a4599d7 2005-05-12 devnull 	jb 0b

210 a25e7f2f 2004-04-21 devnull 

211 a25e7f2f 2004-04-21 devnull 	/* Postlude */

212 a25e7f2f 2004-04-21 devnull 	mov OLDEBX(%esp), %ebx

213 a25e7f2f 2004-04-21 devnull 	mov OLDESI(%esp), %esi

214 a25e7f2f 2004-04-21 devnull 	mov OLDEDI(%esp), %edi

215 2f05c0e8 2004-05-09 devnull 	addl $(STACKSIZE), %esp

216 2f05c0e8 2004-05-09 devnull 	popl %ebp

217 a25e7f2f 2004-04-21 devnull 	ret