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349 lines
6.7 KiB
349 lines
6.7 KiB
12 years ago
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TITLE ../openssl/crypto/bn/asm/x86-mont.asm
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IF @Version LT 800
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ECHO MASM version 8.00 or later is strongly recommended.
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ENDIF
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.586
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.MODEL FLAT
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OPTION DOTNAME
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IF @Version LT 800
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.text$ SEGMENT PAGE 'CODE'
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ELSE
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.text$ SEGMENT ALIGN(64) 'CODE'
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ENDIF
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ALIGN 16
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_bn_mul_mont PROC PUBLIC
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$L_bn_mul_mont_begin::
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push ebp
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push ebx
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push esi
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push edi
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xor eax,eax
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mov edi,DWORD PTR 40[esp]
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cmp edi,4
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jl $L000just_leave
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lea esi,DWORD PTR 20[esp]
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lea edx,DWORD PTR 24[esp]
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mov ebp,esp
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add edi,2
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neg edi
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lea esp,DWORD PTR [edi*4+esp-32]
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neg edi
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mov eax,esp
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sub eax,edx
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and eax,2047
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sub esp,eax
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xor edx,esp
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and edx,2048
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xor edx,2048
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sub esp,edx
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and esp,-64
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mov eax,DWORD PTR [esi]
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mov ebx,DWORD PTR 4[esi]
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mov ecx,DWORD PTR 8[esi]
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mov edx,DWORD PTR 12[esi]
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mov esi,DWORD PTR 16[esi]
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mov esi,DWORD PTR [esi]
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mov DWORD PTR 4[esp],eax
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mov DWORD PTR 8[esp],ebx
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mov DWORD PTR 12[esp],ecx
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mov DWORD PTR 16[esp],edx
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mov DWORD PTR 20[esp],esi
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lea ebx,DWORD PTR [edi-3]
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mov DWORD PTR 24[esp],ebp
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mov esi,DWORD PTR 8[esp]
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lea ebp,DWORD PTR 1[ebx]
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mov edi,DWORD PTR 12[esp]
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xor ecx,ecx
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mov edx,esi
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and ebp,1
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sub edx,edi
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lea eax,DWORD PTR 4[ebx*4+edi]
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or ebp,edx
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mov edi,DWORD PTR [edi]
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jz $L001bn_sqr_mont
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mov DWORD PTR 28[esp],eax
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mov eax,DWORD PTR [esi]
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xor edx,edx
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ALIGN 16
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$L002mull:
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mov ebp,edx
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mul edi
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add ebp,eax
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lea ecx,DWORD PTR 1[ecx]
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adc edx,0
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mov eax,DWORD PTR [ecx*4+esi]
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cmp ecx,ebx
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mov DWORD PTR 28[ecx*4+esp],ebp
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jl $L002mull
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mov ebp,edx
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mul edi
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mov edi,DWORD PTR 20[esp]
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add eax,ebp
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mov esi,DWORD PTR 16[esp]
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adc edx,0
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imul edi,DWORD PTR 32[esp]
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mov DWORD PTR 32[ebx*4+esp],eax
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xor ecx,ecx
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mov DWORD PTR 36[ebx*4+esp],edx
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mov DWORD PTR 40[ebx*4+esp],ecx
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mov eax,DWORD PTR [esi]
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mul edi
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add eax,DWORD PTR 32[esp]
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mov eax,DWORD PTR 4[esi]
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adc edx,0
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inc ecx
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jmp $L0032ndmadd
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ALIGN 16
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$L0041stmadd:
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mov ebp,edx
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mul edi
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add ebp,DWORD PTR 32[ecx*4+esp]
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lea ecx,DWORD PTR 1[ecx]
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adc edx,0
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add ebp,eax
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mov eax,DWORD PTR [ecx*4+esi]
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adc edx,0
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cmp ecx,ebx
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mov DWORD PTR 28[ecx*4+esp],ebp
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jl $L0041stmadd
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mov ebp,edx
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mul edi
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add eax,DWORD PTR 32[ebx*4+esp]
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mov edi,DWORD PTR 20[esp]
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adc edx,0
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mov esi,DWORD PTR 16[esp]
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add ebp,eax
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adc edx,0
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imul edi,DWORD PTR 32[esp]
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xor ecx,ecx
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add edx,DWORD PTR 36[ebx*4+esp]
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mov DWORD PTR 32[ebx*4+esp],ebp
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adc ecx,0
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mov eax,DWORD PTR [esi]
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mov DWORD PTR 36[ebx*4+esp],edx
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mov DWORD PTR 40[ebx*4+esp],ecx
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mul edi
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add eax,DWORD PTR 32[esp]
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mov eax,DWORD PTR 4[esi]
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adc edx,0
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mov ecx,1
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ALIGN 16
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$L0032ndmadd:
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mov ebp,edx
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mul edi
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add ebp,DWORD PTR 32[ecx*4+esp]
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lea ecx,DWORD PTR 1[ecx]
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adc edx,0
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add ebp,eax
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mov eax,DWORD PTR [ecx*4+esi]
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adc edx,0
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cmp ecx,ebx
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mov DWORD PTR 24[ecx*4+esp],ebp
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jl $L0032ndmadd
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mov ebp,edx
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mul edi
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add ebp,DWORD PTR 32[ebx*4+esp]
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adc edx,0
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add ebp,eax
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adc edx,0
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mov DWORD PTR 28[ebx*4+esp],ebp
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xor eax,eax
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mov ecx,DWORD PTR 12[esp]
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add edx,DWORD PTR 36[ebx*4+esp]
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adc eax,DWORD PTR 40[ebx*4+esp]
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lea ecx,DWORD PTR 4[ecx]
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mov DWORD PTR 32[ebx*4+esp],edx
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cmp ecx,DWORD PTR 28[esp]
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mov DWORD PTR 36[ebx*4+esp],eax
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je $L005common_tail
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mov edi,DWORD PTR [ecx]
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mov esi,DWORD PTR 8[esp]
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mov DWORD PTR 12[esp],ecx
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xor ecx,ecx
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xor edx,edx
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mov eax,DWORD PTR [esi]
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jmp $L0041stmadd
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ALIGN 16
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$L001bn_sqr_mont:
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mov DWORD PTR [esp],ebx
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mov DWORD PTR 12[esp],ecx
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mov eax,edi
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mul edi
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mov DWORD PTR 32[esp],eax
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mov ebx,edx
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shr edx,1
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and ebx,1
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inc ecx
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ALIGN 16
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$L006sqr:
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mov eax,DWORD PTR [ecx*4+esi]
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mov ebp,edx
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mul edi
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add eax,ebp
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lea ecx,DWORD PTR 1[ecx]
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adc edx,0
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lea ebp,DWORD PTR [eax*2+ebx]
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shr eax,31
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cmp ecx,DWORD PTR [esp]
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mov ebx,eax
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mov DWORD PTR 28[ecx*4+esp],ebp
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jl $L006sqr
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mov eax,DWORD PTR [ecx*4+esi]
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mov ebp,edx
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mul edi
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add eax,ebp
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mov edi,DWORD PTR 20[esp]
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adc edx,0
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mov esi,DWORD PTR 16[esp]
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lea ebp,DWORD PTR [eax*2+ebx]
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imul edi,DWORD PTR 32[esp]
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shr eax,31
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mov DWORD PTR 32[ecx*4+esp],ebp
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lea ebp,DWORD PTR [edx*2+eax]
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mov eax,DWORD PTR [esi]
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shr edx,31
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mov DWORD PTR 36[ecx*4+esp],ebp
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mov DWORD PTR 40[ecx*4+esp],edx
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mul edi
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add eax,DWORD PTR 32[esp]
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mov ebx,ecx
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adc edx,0
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mov eax,DWORD PTR 4[esi]
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mov ecx,1
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ALIGN 16
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$L0073rdmadd:
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mov ebp,edx
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mul edi
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add ebp,DWORD PTR 32[ecx*4+esp]
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adc edx,0
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add ebp,eax
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mov eax,DWORD PTR 4[ecx*4+esi]
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adc edx,0
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mov DWORD PTR 28[ecx*4+esp],ebp
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mov ebp,edx
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mul edi
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add ebp,DWORD PTR 36[ecx*4+esp]
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lea ecx,DWORD PTR 2[ecx]
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adc edx,0
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add ebp,eax
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mov eax,DWORD PTR [ecx*4+esi]
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adc edx,0
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cmp ecx,ebx
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mov DWORD PTR 24[ecx*4+esp],ebp
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jl $L0073rdmadd
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mov ebp,edx
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mul edi
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add ebp,DWORD PTR 32[ebx*4+esp]
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adc edx,0
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add ebp,eax
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adc edx,0
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mov DWORD PTR 28[ebx*4+esp],ebp
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mov ecx,DWORD PTR 12[esp]
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xor eax,eax
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mov esi,DWORD PTR 8[esp]
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add edx,DWORD PTR 36[ebx*4+esp]
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adc eax,DWORD PTR 40[ebx*4+esp]
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mov DWORD PTR 32[ebx*4+esp],edx
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cmp ecx,ebx
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mov DWORD PTR 36[ebx*4+esp],eax
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je $L005common_tail
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mov edi,DWORD PTR 4[ecx*4+esi]
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lea ecx,DWORD PTR 1[ecx]
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mov eax,edi
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mov DWORD PTR 12[esp],ecx
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mul edi
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add eax,DWORD PTR 32[ecx*4+esp]
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adc edx,0
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mov DWORD PTR 32[ecx*4+esp],eax
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xor ebp,ebp
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cmp ecx,ebx
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lea ecx,DWORD PTR 1[ecx]
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je $L008sqrlast
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mov ebx,edx
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shr edx,1
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and ebx,1
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ALIGN 16
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$L009sqradd:
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mov eax,DWORD PTR [ecx*4+esi]
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mov ebp,edx
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mul edi
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add eax,ebp
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lea ebp,DWORD PTR [eax*1+eax]
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adc edx,0
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shr eax,31
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add ebp,DWORD PTR 32[ecx*4+esp]
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lea ecx,DWORD PTR 1[ecx]
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adc eax,0
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add ebp,ebx
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adc eax,0
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cmp ecx,DWORD PTR [esp]
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mov DWORD PTR 28[ecx*4+esp],ebp
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mov ebx,eax
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jle $L009sqradd
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mov ebp,edx
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add edx,edx
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shr ebp,31
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add edx,ebx
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adc ebp,0
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$L008sqrlast:
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mov edi,DWORD PTR 20[esp]
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mov esi,DWORD PTR 16[esp]
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imul edi,DWORD PTR 32[esp]
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add edx,DWORD PTR 32[ecx*4+esp]
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mov eax,DWORD PTR [esi]
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adc ebp,0
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mov DWORD PTR 32[ecx*4+esp],edx
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mov DWORD PTR 36[ecx*4+esp],ebp
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mul edi
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add eax,DWORD PTR 32[esp]
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lea ebx,DWORD PTR [ecx-1]
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adc edx,0
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mov ecx,1
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mov eax,DWORD PTR 4[esi]
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jmp $L0073rdmadd
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ALIGN 16
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$L005common_tail:
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mov ebp,DWORD PTR 16[esp]
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mov edi,DWORD PTR 4[esp]
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lea esi,DWORD PTR 32[esp]
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mov eax,DWORD PTR [esi]
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mov ecx,ebx
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xor edx,edx
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ALIGN 16
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$L010sub:
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sbb eax,DWORD PTR [edx*4+ebp]
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mov DWORD PTR [edx*4+edi],eax
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dec ecx
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mov eax,DWORD PTR 4[edx*4+esi]
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lea edx,DWORD PTR 1[edx]
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jge $L010sub
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sbb eax,0
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and esi,eax
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not eax
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mov ebp,edi
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and ebp,eax
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or esi,ebp
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ALIGN 16
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$L011copy:
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mov eax,DWORD PTR [ebx*4+esi]
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mov DWORD PTR [ebx*4+edi],eax
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mov DWORD PTR 32[ebx*4+esp],ecx
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dec ebx
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jge $L011copy
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mov esp,DWORD PTR 24[esp]
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mov eax,1
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$L000just_leave:
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pop edi
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pop esi
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pop ebx
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pop ebp
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ret
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_bn_mul_mont ENDP
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DB 77,111,110,116,103,111,109,101,114,121,32,77,117,108,116,105
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DB 112,108,105,99,97,116,105,111,110,32,102,111,114,32,120,56
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DB 54,44,32,67,82,89,80,84,79,71,65,77,83,32,98,121
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DB 32,60,97,112,112,114,111,64,111,112,101,110,115,115,108,46
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DB 111,114,103,62,0
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.text$ ENDS
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END
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