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- # salsa20_pm.s version 20051229
- # D. J. Bernstein
- # Public domain.
- # enter ECRYPT_encrypt_bytes
- .text
- .p2align 5
- .globl ECRYPT_encrypt_bytes
- ECRYPT_encrypt_bytes:
- mov %esp,%eax
- and $31,%eax
- add $256,%eax
- sub %eax,%esp
- # eax_stack = eax
- movl %eax,80(%esp)
- # ebx_stack = ebx
- movl %ebx,84(%esp)
- # esi_stack = esi
- movl %esi,88(%esp)
- # edi_stack = edi
- movl %edi,92(%esp)
- # ebp_stack = ebp
- movl %ebp,96(%esp)
- # x = arg1
- movl 4(%esp,%eax),%edx
- # m = arg2
- movl 8(%esp,%eax),%esi
- # out = arg3
- movl 12(%esp,%eax),%edi
- # bytes = arg4
- movl 16(%esp,%eax),%ebx
- # bytes -= 0
- sub $0,%ebx
- # goto done if unsigned<=
- jbe ._done
- ._start:
- # in0 = *(uint32 *) (x + 0)
- movl 0(%edx),%eax
- # in1 = *(uint32 *) (x + 4)
- movl 4(%edx),%ecx
- # in2 = *(uint32 *) (x + 8)
- movl 8(%edx),%ebp
- # j0 = in0
- movl %eax,164(%esp)
- # in3 = *(uint32 *) (x + 12)
- movl 12(%edx),%eax
- # j1 = in1
- movl %ecx,168(%esp)
- # in4 = *(uint32 *) (x + 16)
- movl 16(%edx),%ecx
- # j2 = in2
- movl %ebp,172(%esp)
- # in5 = *(uint32 *) (x + 20)
- movl 20(%edx),%ebp
- # j3 = in3
- movl %eax,176(%esp)
- # in6 = *(uint32 *) (x + 24)
- movl 24(%edx),%eax
- # j4 = in4
- movl %ecx,180(%esp)
- # in7 = *(uint32 *) (x + 28)
- movl 28(%edx),%ecx
- # j5 = in5
- movl %ebp,184(%esp)
- # in8 = *(uint32 *) (x + 32)
- movl 32(%edx),%ebp
- # j6 = in6
- movl %eax,188(%esp)
- # in9 = *(uint32 *) (x + 36)
- movl 36(%edx),%eax
- # j7 = in7
- movl %ecx,192(%esp)
- # in10 = *(uint32 *) (x + 40)
- movl 40(%edx),%ecx
- # j8 = in8
- movl %ebp,196(%esp)
- # in11 = *(uint32 *) (x + 44)
- movl 44(%edx),%ebp
- # j9 = in9
- movl %eax,200(%esp)
- # in12 = *(uint32 *) (x + 48)
- movl 48(%edx),%eax
- # j10 = in10
- movl %ecx,204(%esp)
- # in13 = *(uint32 *) (x + 52)
- movl 52(%edx),%ecx
- # j11 = in11
- movl %ebp,208(%esp)
- # in14 = *(uint32 *) (x + 56)
- movl 56(%edx),%ebp
- # j12 = in12
- movl %eax,212(%esp)
- # in15 = *(uint32 *) (x + 60)
- movl 60(%edx),%eax
- # j13 = in13
- movl %ecx,216(%esp)
- # j14 = in14
- movl %ebp,220(%esp)
- # j15 = in15
- movl %eax,224(%esp)
- # x_backup = x
- movl %edx,64(%esp)
- ._bytesatleast1:
- # bytes - 64
- cmp $64,%ebx
- # goto nocopy if unsigned>=
- jae ._nocopy
- # ctarget = out
- movl %edi,228(%esp)
- # out = &tmp
- leal 0(%esp),%edi
- # i = bytes
- mov %ebx,%ecx
- # while (i) { *out++ = *m++; --i }
- rep movsb
- # out = &tmp
- leal 0(%esp),%edi
- # m = &tmp
- leal 0(%esp),%esi
- ._nocopy:
- # out_backup = out
- movl %edi,72(%esp)
- # m_backup = m
- movl %esi,68(%esp)
- # bytes_backup = bytes
- movl %ebx,76(%esp)
- # in0 = j0
- movl 164(%esp),%eax
- # in1 = j1
- movl 168(%esp),%ecx
- # in2 = j2
- movl 172(%esp),%edx
- # in3 = j3
- movl 176(%esp),%ebx
- # x0 = in0
- movl %eax,100(%esp)
- # x1 = in1
- movl %ecx,104(%esp)
- # x2 = in2
- movl %edx,108(%esp)
- # x3 = in3
- movl %ebx,112(%esp)
- # in4 = j4
- movl 180(%esp),%eax
- # in5 = j5
- movl 184(%esp),%ecx
- # in6 = j6
- movl 188(%esp),%edx
- # in7 = j7
- movl 192(%esp),%ebx
- # x4 = in4
- movl %eax,116(%esp)
- # x5 = in5
- movl %ecx,120(%esp)
- # x6 = in6
- movl %edx,124(%esp)
- # x7 = in7
- movl %ebx,128(%esp)
- # in8 = j8
- movl 196(%esp),%eax
- # in9 = j9
- movl 200(%esp),%ecx
- # in10 = j10
- movl 204(%esp),%edx
- # in11 = j11
- movl 208(%esp),%ebx
- # x8 = in8
- movl %eax,132(%esp)
- # x9 = in9
- movl %ecx,136(%esp)
- # x10 = in10
- movl %edx,140(%esp)
- # x11 = in11
- movl %ebx,144(%esp)
- # in12 = j12
- movl 212(%esp),%eax
- # in13 = j13
- movl 216(%esp),%ecx
- # in14 = j14
- movl 220(%esp),%edx
- # in15 = j15
- movl 224(%esp),%ebx
- # x12 = in12
- movl %eax,148(%esp)
- # x13 = in13
- movl %ecx,152(%esp)
- # x14 = in14
- movl %edx,156(%esp)
- # x15 = in15
- movl %ebx,160(%esp)
- # i = 20
- mov $20,%ebp
- # p = x0
- movl 100(%esp),%eax
- # s = x5
- movl 120(%esp),%ecx
- # t = x10
- movl 140(%esp),%edx
- # w = x15
- movl 160(%esp),%ebx
- ._mainloop:
- # x0 = p
- movl %eax,100(%esp)
- # x10 = t
- movl %edx,140(%esp)
- # p += x12
- addl 148(%esp),%eax
- # x5 = s
- movl %ecx,120(%esp)
- # t += x6
- addl 124(%esp),%edx
- # x15 = w
- movl %ebx,160(%esp)
- # r = x1
- movl 104(%esp),%esi
- # r += s
- add %ecx,%esi
- # v = x11
- movl 144(%esp),%edi
- # v += w
- add %ebx,%edi
- # p <<<= 7
- rol $7,%eax
- # p ^= x4
- xorl 116(%esp),%eax
- # t <<<= 7
- rol $7,%edx
- # t ^= x14
- xorl 156(%esp),%edx
- # r <<<= 7
- rol $7,%esi
- # r ^= x9
- xorl 136(%esp),%esi
- # v <<<= 7
- rol $7,%edi
- # v ^= x3
- xorl 112(%esp),%edi
- # x4 = p
- movl %eax,116(%esp)
- # x14 = t
- movl %edx,156(%esp)
- # p += x0
- addl 100(%esp),%eax
- # x9 = r
- movl %esi,136(%esp)
- # t += x10
- addl 140(%esp),%edx
- # x3 = v
- movl %edi,112(%esp)
- # p <<<= 9
- rol $9,%eax
- # p ^= x8
- xorl 132(%esp),%eax
- # t <<<= 9
- rol $9,%edx
- # t ^= x2
- xorl 108(%esp),%edx
- # s += r
- add %esi,%ecx
- # s <<<= 9
- rol $9,%ecx
- # s ^= x13
- xorl 152(%esp),%ecx
- # w += v
- add %edi,%ebx
- # w <<<= 9
- rol $9,%ebx
- # w ^= x7
- xorl 128(%esp),%ebx
- # x8 = p
- movl %eax,132(%esp)
- # x2 = t
- movl %edx,108(%esp)
- # p += x4
- addl 116(%esp),%eax
- # x13 = s
- movl %ecx,152(%esp)
- # t += x14
- addl 156(%esp),%edx
- # x7 = w
- movl %ebx,128(%esp)
- # p <<<= 13
- rol $13,%eax
- # p ^= x12
- xorl 148(%esp),%eax
- # t <<<= 13
- rol $13,%edx
- # t ^= x6
- xorl 124(%esp),%edx
- # r += s
- add %ecx,%esi
- # r <<<= 13
- rol $13,%esi
- # r ^= x1
- xorl 104(%esp),%esi
- # v += w
- add %ebx,%edi
- # v <<<= 13
- rol $13,%edi
- # v ^= x11
- xorl 144(%esp),%edi
- # x12 = p
- movl %eax,148(%esp)
- # x6 = t
- movl %edx,124(%esp)
- # p += x8
- addl 132(%esp),%eax
- # x1 = r
- movl %esi,104(%esp)
- # t += x2
- addl 108(%esp),%edx
- # x11 = v
- movl %edi,144(%esp)
- # p <<<= 18
- rol $18,%eax
- # p ^= x0
- xorl 100(%esp),%eax
- # t <<<= 18
- rol $18,%edx
- # t ^= x10
- xorl 140(%esp),%edx
- # s += r
- add %esi,%ecx
- # s <<<= 18
- rol $18,%ecx
- # s ^= x5
- xorl 120(%esp),%ecx
- # w += v
- add %edi,%ebx
- # w <<<= 18
- rol $18,%ebx
- # w ^= x15
- xorl 160(%esp),%ebx
- # x0 = p
- movl %eax,100(%esp)
- # x10 = t
- movl %edx,140(%esp)
- # p += x3
- addl 112(%esp),%eax
- # p <<<= 7
- rol $7,%eax
- # x5 = s
- movl %ecx,120(%esp)
- # t += x9
- addl 136(%esp),%edx
- # x15 = w
- movl %ebx,160(%esp)
- # r = x4
- movl 116(%esp),%esi
- # r += s
- add %ecx,%esi
- # v = x14
- movl 156(%esp),%edi
- # v += w
- add %ebx,%edi
- # p ^= x1
- xorl 104(%esp),%eax
- # t <<<= 7
- rol $7,%edx
- # t ^= x11
- xorl 144(%esp),%edx
- # r <<<= 7
- rol $7,%esi
- # r ^= x6
- xorl 124(%esp),%esi
- # v <<<= 7
- rol $7,%edi
- # v ^= x12
- xorl 148(%esp),%edi
- # x1 = p
- movl %eax,104(%esp)
- # x11 = t
- movl %edx,144(%esp)
- # p += x0
- addl 100(%esp),%eax
- # x6 = r
- movl %esi,124(%esp)
- # t += x10
- addl 140(%esp),%edx
- # x12 = v
- movl %edi,148(%esp)
- # p <<<= 9
- rol $9,%eax
- # p ^= x2
- xorl 108(%esp),%eax
- # t <<<= 9
- rol $9,%edx
- # t ^= x8
- xorl 132(%esp),%edx
- # s += r
- add %esi,%ecx
- # s <<<= 9
- rol $9,%ecx
- # s ^= x7
- xorl 128(%esp),%ecx
- # w += v
- add %edi,%ebx
- # w <<<= 9
- rol $9,%ebx
- # w ^= x13
- xorl 152(%esp),%ebx
- # x2 = p
- movl %eax,108(%esp)
- # x8 = t
- movl %edx,132(%esp)
- # p += x1
- addl 104(%esp),%eax
- # x7 = s
- movl %ecx,128(%esp)
- # t += x11
- addl 144(%esp),%edx
- # x13 = w
- movl %ebx,152(%esp)
- # p <<<= 13
- rol $13,%eax
- # p ^= x3
- xorl 112(%esp),%eax
- # t <<<= 13
- rol $13,%edx
- # t ^= x9
- xorl 136(%esp),%edx
- # r += s
- add %ecx,%esi
- # r <<<= 13
- rol $13,%esi
- # r ^= x4
- xorl 116(%esp),%esi
- # v += w
- add %ebx,%edi
- # v <<<= 13
- rol $13,%edi
- # v ^= x14
- xorl 156(%esp),%edi
- # x3 = p
- movl %eax,112(%esp)
- # x9 = t
- movl %edx,136(%esp)
- # p += x2
- addl 108(%esp),%eax
- # x4 = r
- movl %esi,116(%esp)
- # t += x8
- addl 132(%esp),%edx
- # x14 = v
- movl %edi,156(%esp)
- # p <<<= 18
- rol $18,%eax
- # p ^= x0
- xorl 100(%esp),%eax
- # t <<<= 18
- rol $18,%edx
- # t ^= x10
- xorl 140(%esp),%edx
- # s += r
- add %esi,%ecx
- # s <<<= 18
- rol $18,%ecx
- # s ^= x5
- xorl 120(%esp),%ecx
- # w += v
- add %edi,%ebx
- # w <<<= 18
- rol $18,%ebx
- # w ^= x15
- xorl 160(%esp),%ebx
- # x0 = p
- movl %eax,100(%esp)
- # x10 = t
- movl %edx,140(%esp)
- # p += x12
- addl 148(%esp),%eax
- # x5 = s
- movl %ecx,120(%esp)
- # t += x6
- addl 124(%esp),%edx
- # x15 = w
- movl %ebx,160(%esp)
- # r = x1
- movl 104(%esp),%esi
- # r += s
- add %ecx,%esi
- # v = x11
- movl 144(%esp),%edi
- # v += w
- add %ebx,%edi
- # p <<<= 7
- rol $7,%eax
- # p ^= x4
- xorl 116(%esp),%eax
- # t <<<= 7
- rol $7,%edx
- # t ^= x14
- xorl 156(%esp),%edx
- # r <<<= 7
- rol $7,%esi
- # r ^= x9
- xorl 136(%esp),%esi
- # v <<<= 7
- rol $7,%edi
- # v ^= x3
- xorl 112(%esp),%edi
- # x4 = p
- movl %eax,116(%esp)
- # x14 = t
- movl %edx,156(%esp)
- # p += x0
- addl 100(%esp),%eax
- # x9 = r
- movl %esi,136(%esp)
- # t += x10
- addl 140(%esp),%edx
- # x3 = v
- movl %edi,112(%esp)
- # p <<<= 9
- rol $9,%eax
- # p ^= x8
- xorl 132(%esp),%eax
- # t <<<= 9
- rol $9,%edx
- # t ^= x2
- xorl 108(%esp),%edx
- # s += r
- add %esi,%ecx
- # s <<<= 9
- rol $9,%ecx
- # s ^= x13
- xorl 152(%esp),%ecx
- # w += v
- add %edi,%ebx
- # w <<<= 9
- rol $9,%ebx
- # w ^= x7
- xorl 128(%esp),%ebx
- # x8 = p
- movl %eax,132(%esp)
- # x2 = t
- movl %edx,108(%esp)
- # p += x4
- addl 116(%esp),%eax
- # x13 = s
- movl %ecx,152(%esp)
- # t += x14
- addl 156(%esp),%edx
- # x7 = w
- movl %ebx,128(%esp)
- # p <<<= 13
- rol $13,%eax
- # p ^= x12
- xorl 148(%esp),%eax
- # t <<<= 13
- rol $13,%edx
- # t ^= x6
- xorl 124(%esp),%edx
- # r += s
- add %ecx,%esi
- # r <<<= 13
- rol $13,%esi
- # r ^= x1
- xorl 104(%esp),%esi
- # v += w
- add %ebx,%edi
- # v <<<= 13
- rol $13,%edi
- # v ^= x11
- xorl 144(%esp),%edi
- # x12 = p
- movl %eax,148(%esp)
- # x6 = t
- movl %edx,124(%esp)
- # p += x8
- addl 132(%esp),%eax
- # x1 = r
- movl %esi,104(%esp)
- # t += x2
- addl 108(%esp),%edx
- # x11 = v
- movl %edi,144(%esp)
- # p <<<= 18
- rol $18,%eax
- # p ^= x0
- xorl 100(%esp),%eax
- # t <<<= 18
- rol $18,%edx
- # t ^= x10
- xorl 140(%esp),%edx
- # s += r
- add %esi,%ecx
- # s <<<= 18
- rol $18,%ecx
- # s ^= x5
- xorl 120(%esp),%ecx
- # w += v
- add %edi,%ebx
- # w <<<= 18
- rol $18,%ebx
- # w ^= x15
- xorl 160(%esp),%ebx
- # x0 = p
- movl %eax,100(%esp)
- # x10 = t
- movl %edx,140(%esp)
- # p += x3
- addl 112(%esp),%eax
- # p <<<= 7
- rol $7,%eax
- # x5 = s
- movl %ecx,120(%esp)
- # t += x9
- addl 136(%esp),%edx
- # x15 = w
- movl %ebx,160(%esp)
- # r = x4
- movl 116(%esp),%esi
- # r += s
- add %ecx,%esi
- # v = x14
- movl 156(%esp),%edi
- # v += w
- add %ebx,%edi
- # p ^= x1
- xorl 104(%esp),%eax
- # t <<<= 7
- rol $7,%edx
- # t ^= x11
- xorl 144(%esp),%edx
- # r <<<= 7
- rol $7,%esi
- # r ^= x6
- xorl 124(%esp),%esi
- # v <<<= 7
- rol $7,%edi
- # v ^= x12
- xorl 148(%esp),%edi
- # x1 = p
- movl %eax,104(%esp)
- # x11 = t
- movl %edx,144(%esp)
- # p += x0
- addl 100(%esp),%eax
- # x6 = r
- movl %esi,124(%esp)
- # t += x10
- addl 140(%esp),%edx
- # x12 = v
- movl %edi,148(%esp)
- # p <<<= 9
- rol $9,%eax
- # p ^= x2
- xorl 108(%esp),%eax
- # t <<<= 9
- rol $9,%edx
- # t ^= x8
- xorl 132(%esp),%edx
- # s += r
- add %esi,%ecx
- # s <<<= 9
- rol $9,%ecx
- # s ^= x7
- xorl 128(%esp),%ecx
- # w += v
- add %edi,%ebx
- # w <<<= 9
- rol $9,%ebx
- # w ^= x13
- xorl 152(%esp),%ebx
- # x2 = p
- movl %eax,108(%esp)
- # x8 = t
- movl %edx,132(%esp)
- # p += x1
- addl 104(%esp),%eax
- # x7 = s
- movl %ecx,128(%esp)
- # t += x11
- addl 144(%esp),%edx
- # x13 = w
- movl %ebx,152(%esp)
- # p <<<= 13
- rol $13,%eax
- # p ^= x3
- xorl 112(%esp),%eax
- # t <<<= 13
- rol $13,%edx
- # t ^= x9
- xorl 136(%esp),%edx
- # r += s
- add %ecx,%esi
- # r <<<= 13
- rol $13,%esi
- # r ^= x4
- xorl 116(%esp),%esi
- # v += w
- add %ebx,%edi
- # v <<<= 13
- rol $13,%edi
- # v ^= x14
- xorl 156(%esp),%edi
- # x3 = p
- movl %eax,112(%esp)
- # x9 = t
- movl %edx,136(%esp)
- # p += x2
- addl 108(%esp),%eax
- # x4 = r
- movl %esi,116(%esp)
- # t += x8
- addl 132(%esp),%edx
- # x14 = v
- movl %edi,156(%esp)
- # p <<<= 18
- rol $18,%eax
- # p ^= x0
- xorl 100(%esp),%eax
- # t <<<= 18
- rol $18,%edx
- # t ^= x10
- xorl 140(%esp),%edx
- # s += r
- add %esi,%ecx
- # s <<<= 18
- rol $18,%ecx
- # s ^= x5
- xorl 120(%esp),%ecx
- # w += v
- add %edi,%ebx
- # w <<<= 18
- rol $18,%ebx
- # w ^= x15
- xorl 160(%esp),%ebx
- # i -= 4
- sub $4,%ebp
- # goto mainloop if unsigned >
- ja ._mainloop
- # x0 = p
- movl %eax,100(%esp)
- # x5 = s
- movl %ecx,120(%esp)
- # x10 = t
- movl %edx,140(%esp)
- # x15 = w
- movl %ebx,160(%esp)
- # out = out_backup
- movl 72(%esp),%edi
- # m = m_backup
- movl 68(%esp),%esi
- # in0 = x0
- movl 100(%esp),%eax
- # in1 = x1
- movl 104(%esp),%ecx
- # in0 += j0
- addl 164(%esp),%eax
- # in1 += j1
- addl 168(%esp),%ecx
- # in0 ^= *(uint32 *) (m + 0)
- xorl 0(%esi),%eax
- # in1 ^= *(uint32 *) (m + 4)
- xorl 4(%esi),%ecx
- # *(uint32 *) (out + 0) = in0
- movl %eax,0(%edi)
- # *(uint32 *) (out + 4) = in1
- movl %ecx,4(%edi)
- # in2 = x2
- movl 108(%esp),%eax
- # in3 = x3
- movl 112(%esp),%ecx
- # in2 += j2
- addl 172(%esp),%eax
- # in3 += j3
- addl 176(%esp),%ecx
- # in2 ^= *(uint32 *) (m + 8)
- xorl 8(%esi),%eax
- # in3 ^= *(uint32 *) (m + 12)
- xorl 12(%esi),%ecx
- # *(uint32 *) (out + 8) = in2
- movl %eax,8(%edi)
- # *(uint32 *) (out + 12) = in3
- movl %ecx,12(%edi)
- # in4 = x4
- movl 116(%esp),%eax
- # in5 = x5
- movl 120(%esp),%ecx
- # in4 += j4
- addl 180(%esp),%eax
- # in5 += j5
- addl 184(%esp),%ecx
- # in4 ^= *(uint32 *) (m + 16)
- xorl 16(%esi),%eax
- # in5 ^= *(uint32 *) (m + 20)
- xorl 20(%esi),%ecx
- # *(uint32 *) (out + 16) = in4
- movl %eax,16(%edi)
- # *(uint32 *) (out + 20) = in5
- movl %ecx,20(%edi)
- # in6 = x6
- movl 124(%esp),%eax
- # in7 = x7
- movl 128(%esp),%ecx
- # in6 += j6
- addl 188(%esp),%eax
- # in7 += j7
- addl 192(%esp),%ecx
- # in6 ^= *(uint32 *) (m + 24)
- xorl 24(%esi),%eax
- # in7 ^= *(uint32 *) (m + 28)
- xorl 28(%esi),%ecx
- # *(uint32 *) (out + 24) = in6
- movl %eax,24(%edi)
- # *(uint32 *) (out + 28) = in7
- movl %ecx,28(%edi)
- # in8 = x8
- movl 132(%esp),%eax
- # in9 = x9
- movl 136(%esp),%ecx
- # in8 += j8
- addl 196(%esp),%eax
- # in9 += j9
- addl 200(%esp),%ecx
- # in8 ^= *(uint32 *) (m + 32)
- xorl 32(%esi),%eax
- # in9 ^= *(uint32 *) (m + 36)
- xorl 36(%esi),%ecx
- # *(uint32 *) (out + 32) = in8
- movl %eax,32(%edi)
- # *(uint32 *) (out + 36) = in9
- movl %ecx,36(%edi)
- # in10 = x10
- movl 140(%esp),%eax
- # in11 = x11
- movl 144(%esp),%ecx
- # in10 += j10
- addl 204(%esp),%eax
- # in11 += j11
- addl 208(%esp),%ecx
- # in10 ^= *(uint32 *) (m + 40)
- xorl 40(%esi),%eax
- # in11 ^= *(uint32 *) (m + 44)
- xorl 44(%esi),%ecx
- # *(uint32 *) (out + 40) = in10
- movl %eax,40(%edi)
- # *(uint32 *) (out + 44) = in11
- movl %ecx,44(%edi)
- # in12 = x12
- movl 148(%esp),%eax
- # in13 = x13
- movl 152(%esp),%ecx
- # in12 += j12
- addl 212(%esp),%eax
- # in13 += j13
- addl 216(%esp),%ecx
- # in12 ^= *(uint32 *) (m + 48)
- xorl 48(%esi),%eax
- # in13 ^= *(uint32 *) (m + 52)
- xorl 52(%esi),%ecx
- # *(uint32 *) (out + 48) = in12
- movl %eax,48(%edi)
- # *(uint32 *) (out + 52) = in13
- movl %ecx,52(%edi)
- # in14 = x14
- movl 156(%esp),%eax
- # in15 = x15
- movl 160(%esp),%ecx
- # in14 += j14
- addl 220(%esp),%eax
- # in15 += j15
- addl 224(%esp),%ecx
- # in14 ^= *(uint32 *) (m + 56)
- xorl 56(%esi),%eax
- # in15 ^= *(uint32 *) (m + 60)
- xorl 60(%esi),%ecx
- # *(uint32 *) (out + 56) = in14
- movl %eax,56(%edi)
- # *(uint32 *) (out + 60) = in15
- movl %ecx,60(%edi)
- # bytes = bytes_backup
- movl 76(%esp),%ebx
- # in8 = j8
- movl 196(%esp),%eax
- # in9 = j9
- movl 200(%esp),%ecx
- # in8 += 1
- add $1,%eax
- # in9 += 0 + carry
- adc $0,%ecx
- # j8 = in8
- movl %eax,196(%esp)
- # j9 = in9
- movl %ecx,200(%esp)
- # bytes - 64
- cmp $64,%ebx
- # goto bytesatleast65 if unsigned>
- ja ._bytesatleast65
- # goto bytesatleast64 if unsigned>=
- jae ._bytesatleast64
- # m = out
- mov %edi,%esi
- # out = ctarget
- movl 228(%esp),%edi
- # i = bytes
- mov %ebx,%ecx
- # while (i) { *out++ = *m++; --i }
- rep movsb
- ._bytesatleast64:
- # x = x_backup
- movl 64(%esp),%eax
- # in8 = j8
- movl 196(%esp),%ecx
- # in9 = j9
- movl 200(%esp),%edx
- # *(uint32 *) (x + 32) = in8
- movl %ecx,32(%eax)
- # *(uint32 *) (x + 36) = in9
- movl %edx,36(%eax)
- ._done:
- # eax = eax_stack
- movl 80(%esp),%eax
- # ebx = ebx_stack
- movl 84(%esp),%ebx
- # esi = esi_stack
- movl 88(%esp),%esi
- # edi = edi_stack
- movl 92(%esp),%edi
- # ebp = ebp_stack
- movl 96(%esp),%ebp
- # leave
- add %eax,%esp
- ret
- ._bytesatleast65:
- # bytes -= 64
- sub $64,%ebx
- # out += 64
- add $64,%edi
- # m += 64
- add $64,%esi
- # goto bytesatleast1
- jmp ._bytesatleast1
- # enter ECRYPT_keysetup
- .text
- .p2align 5
- .globl ECRYPT_keysetup
- ECRYPT_keysetup:
- mov %esp,%eax
- and $31,%eax
- add $256,%eax
- sub %eax,%esp
- # eax_stack = eax
- movl %eax,64(%esp)
- # ebx_stack = ebx
- movl %ebx,68(%esp)
- # esi_stack = esi
- movl %esi,72(%esp)
- # edi_stack = edi
- movl %edi,76(%esp)
- # ebp_stack = ebp
- movl %ebp,80(%esp)
- # k = arg2
- movl 8(%esp,%eax),%ecx
- # kbits = arg3
- movl 12(%esp,%eax),%edx
- # x = arg1
- movl 4(%esp,%eax),%eax
- # in1 = *(uint32 *) (k + 0)
- movl 0(%ecx),%ebx
- # in2 = *(uint32 *) (k + 4)
- movl 4(%ecx),%esi
- # in3 = *(uint32 *) (k + 8)
- movl 8(%ecx),%edi
- # in4 = *(uint32 *) (k + 12)
- movl 12(%ecx),%ebp
- # *(uint32 *) (x + 4) = in1
- movl %ebx,4(%eax)
- # *(uint32 *) (x + 8) = in2
- movl %esi,8(%eax)
- # *(uint32 *) (x + 12) = in3
- movl %edi,12(%eax)
- # *(uint32 *) (x + 16) = in4
- movl %ebp,16(%eax)
- # kbits - 256
- cmp $256,%edx
- # goto kbits128 if unsigned<
- jb ._kbits128
- ._kbits256:
- # in11 = *(uint32 *) (k + 16)
- movl 16(%ecx),%edx
- # in12 = *(uint32 *) (k + 20)
- movl 20(%ecx),%ebx
- # in13 = *(uint32 *) (k + 24)
- movl 24(%ecx),%esi
- # in14 = *(uint32 *) (k + 28)
- movl 28(%ecx),%ecx
- # *(uint32 *) (x + 44) = in11
- movl %edx,44(%eax)
- # *(uint32 *) (x + 48) = in12
- movl %ebx,48(%eax)
- # *(uint32 *) (x + 52) = in13
- movl %esi,52(%eax)
- # *(uint32 *) (x + 56) = in14
- movl %ecx,56(%eax)
- # in0 = 1634760805
- mov $1634760805,%ecx
- # in5 = 857760878
- mov $857760878,%edx
- # in10 = 2036477234
- mov $2036477234,%ebx
- # in15 = 1797285236
- mov $1797285236,%esi
- # *(uint32 *) (x + 0) = in0
- movl %ecx,0(%eax)
- # *(uint32 *) (x + 20) = in5
- movl %edx,20(%eax)
- # *(uint32 *) (x + 40) = in10
- movl %ebx,40(%eax)
- # *(uint32 *) (x + 60) = in15
- movl %esi,60(%eax)
- # goto keysetupdone
- jmp ._keysetupdone
- ._kbits128:
- # in11 = *(uint32 *) (k + 0)
- movl 0(%ecx),%edx
- # in12 = *(uint32 *) (k + 4)
- movl 4(%ecx),%ebx
- # in13 = *(uint32 *) (k + 8)
- movl 8(%ecx),%esi
- # in14 = *(uint32 *) (k + 12)
- movl 12(%ecx),%ecx
- # *(uint32 *) (x + 44) = in11
- movl %edx,44(%eax)
- # *(uint32 *) (x + 48) = in12
- movl %ebx,48(%eax)
- # *(uint32 *) (x + 52) = in13
- movl %esi,52(%eax)
- # *(uint32 *) (x + 56) = in14
- movl %ecx,56(%eax)
- # in0 = 1634760805
- mov $1634760805,%ecx
- # in5 = 824206446
- mov $824206446,%edx
- # in10 = 2036477238
- mov $2036477238,%ebx
- # in15 = 1797285236
- mov $1797285236,%esi
- # *(uint32 *) (x + 0) = in0
- movl %ecx,0(%eax)
- # *(uint32 *) (x + 20) = in5
- movl %edx,20(%eax)
- # *(uint32 *) (x + 40) = in10
- movl %ebx,40(%eax)
- # *(uint32 *) (x + 60) = in15
- movl %esi,60(%eax)
- ._keysetupdone:
- # eax = eax_stack
- movl 64(%esp),%eax
- # ebx = ebx_stack
- movl 68(%esp),%ebx
- # esi = esi_stack
- movl 72(%esp),%esi
- # edi = edi_stack
- movl 76(%esp),%edi
- # ebp = ebp_stack
- movl 80(%esp),%ebp
- # leave
- add %eax,%esp
- ret
- # enter ECRYPT_ivsetup
- .text
- .p2align 5
- .globl ECRYPT_ivsetup
- ECRYPT_ivsetup:
- mov %esp,%eax
- and $31,%eax
- add $256,%eax
- sub %eax,%esp
- # eax_stack = eax
- movl %eax,64(%esp)
- # ebx_stack = ebx
- movl %ebx,68(%esp)
- # esi_stack = esi
- movl %esi,72(%esp)
- # edi_stack = edi
- movl %edi,76(%esp)
- # ebp_stack = ebp
- movl %ebp,80(%esp)
- # iv = arg2
- movl 8(%esp,%eax),%ecx
- # x = arg1
- movl 4(%esp,%eax),%eax
- # in6 = *(uint32 *) (iv + 0)
- movl 0(%ecx),%edx
- # in7 = *(uint32 *) (iv + 4)
- movl 4(%ecx),%ecx
- # in8 = 0
- mov $0,%ebx
- # in9 = 0
- mov $0,%esi
- # *(uint32 *) (x + 24) = in6
- movl %edx,24(%eax)
- # *(uint32 *) (x + 28) = in7
- movl %ecx,28(%eax)
- # *(uint32 *) (x + 32) = in8
- movl %ebx,32(%eax)
- # *(uint32 *) (x + 36) = in9
- movl %esi,36(%eax)
- # eax = eax_stack
- movl 64(%esp),%eax
- # ebx = ebx_stack
- movl 68(%esp),%ebx
- # esi = esi_stack
- movl 72(%esp),%esi
- # edi = edi_stack
- movl 76(%esp),%edi
- # ebp = ebp_stack
- movl 80(%esp),%ebp
- # leave
- add %eax,%esp
- ret
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