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Unified Diff: third_party/boringssl/win-x86/crypto/bn/x86-mont.asm

Issue 683113005: Update from chromium https://crrev.com/302282 (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 6 years, 2 months ago
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Index: third_party/boringssl/win-x86/crypto/bn/x86-mont.asm
diff --git a/third_party/boringssl/win-x86/crypto/bn/x86-mont.asm b/third_party/boringssl/win-x86/crypto/bn/x86-mont.asm
new file mode 100644
index 0000000000000000000000000000000000000000..f07165fb0f25931252e914ed1bc23949f7f1e798
--- /dev/null
+++ b/third_party/boringssl/win-x86/crypto/bn/x86-mont.asm
@@ -0,0 +1,349 @@
+%ifidn __OUTPUT_FORMAT__,obj
+section code use32 class=code align=64
+%elifidn __OUTPUT_FORMAT__,win32
+%ifdef __YASM_VERSION_ID__
+%if __YASM_VERSION_ID__ < 01010000h
+%error yasm version 1.1.0 or later needed.
+%endif
+; Yasm automatically includes .00 and complains about redefining it.
+; https://www.tortall.net/projects/yasm/manual/html/objfmt-win32-safeseh.html
+%else
+$@feat.00 equ 1
+%endif
+section .text code align=64
+%else
+section .text code
+%endif
+global _bn_mul_mont
+align 16
+_bn_mul_mont:
+L$_bn_mul_mont_begin:
+ push ebp
+ push ebx
+ push esi
+ push edi
+ xor eax,eax
+ mov edi,DWORD [40+esp]
+ cmp edi,4
+ jl NEAR L$000just_leave
+ lea esi,[20+esp]
+ lea edx,[24+esp]
+ mov ebp,esp
+ add edi,2
+ neg edi
+ lea esp,[edi*4+esp-32]
+ neg edi
+ mov eax,esp
+ sub eax,edx
+ and eax,2047
+ sub esp,eax
+ xor edx,esp
+ and edx,2048
+ xor edx,2048
+ sub esp,edx
+ and esp,-64
+ mov eax,DWORD [esi]
+ mov ebx,DWORD [4+esi]
+ mov ecx,DWORD [8+esi]
+ mov edx,DWORD [12+esi]
+ mov esi,DWORD [16+esi]
+ mov esi,DWORD [esi]
+ mov DWORD [4+esp],eax
+ mov DWORD [8+esp],ebx
+ mov DWORD [12+esp],ecx
+ mov DWORD [16+esp],edx
+ mov DWORD [20+esp],esi
+ lea ebx,[edi-3]
+ mov DWORD [24+esp],ebp
+ mov esi,DWORD [8+esp]
+ lea ebp,[1+ebx]
+ mov edi,DWORD [12+esp]
+ xor ecx,ecx
+ mov edx,esi
+ and ebp,1
+ sub edx,edi
+ lea eax,[4+ebx*4+edi]
+ or ebp,edx
+ mov edi,DWORD [edi]
+ jz NEAR L$001bn_sqr_mont
+ mov DWORD [28+esp],eax
+ mov eax,DWORD [esi]
+ xor edx,edx
+align 16
+L$002mull:
+ mov ebp,edx
+ mul edi
+ add ebp,eax
+ lea ecx,[1+ecx]
+ adc edx,0
+ mov eax,DWORD [ecx*4+esi]
+ cmp ecx,ebx
+ mov DWORD [28+ecx*4+esp],ebp
+ jl NEAR L$002mull
+ mov ebp,edx
+ mul edi
+ mov edi,DWORD [20+esp]
+ add eax,ebp
+ mov esi,DWORD [16+esp]
+ adc edx,0
+ imul edi,DWORD [32+esp]
+ mov DWORD [32+ebx*4+esp],eax
+ xor ecx,ecx
+ mov DWORD [36+ebx*4+esp],edx
+ mov DWORD [40+ebx*4+esp],ecx
+ mov eax,DWORD [esi]
+ mul edi
+ add eax,DWORD [32+esp]
+ mov eax,DWORD [4+esi]
+ adc edx,0
+ inc ecx
+ jmp NEAR L$0032ndmadd
+align 16
+L$0041stmadd:
+ mov ebp,edx
+ mul edi
+ add ebp,DWORD [32+ecx*4+esp]
+ lea ecx,[1+ecx]
+ adc edx,0
+ add ebp,eax
+ mov eax,DWORD [ecx*4+esi]
+ adc edx,0
+ cmp ecx,ebx
+ mov DWORD [28+ecx*4+esp],ebp
+ jl NEAR L$0041stmadd
+ mov ebp,edx
+ mul edi
+ add eax,DWORD [32+ebx*4+esp]
+ mov edi,DWORD [20+esp]
+ adc edx,0
+ mov esi,DWORD [16+esp]
+ add ebp,eax
+ adc edx,0
+ imul edi,DWORD [32+esp]
+ xor ecx,ecx
+ add edx,DWORD [36+ebx*4+esp]
+ mov DWORD [32+ebx*4+esp],ebp
+ adc ecx,0
+ mov eax,DWORD [esi]
+ mov DWORD [36+ebx*4+esp],edx
+ mov DWORD [40+ebx*4+esp],ecx
+ mul edi
+ add eax,DWORD [32+esp]
+ mov eax,DWORD [4+esi]
+ adc edx,0
+ mov ecx,1
+align 16
+L$0032ndmadd:
+ mov ebp,edx
+ mul edi
+ add ebp,DWORD [32+ecx*4+esp]
+ lea ecx,[1+ecx]
+ adc edx,0
+ add ebp,eax
+ mov eax,DWORD [ecx*4+esi]
+ adc edx,0
+ cmp ecx,ebx
+ mov DWORD [24+ecx*4+esp],ebp
+ jl NEAR L$0032ndmadd
+ mov ebp,edx
+ mul edi
+ add ebp,DWORD [32+ebx*4+esp]
+ adc edx,0
+ add ebp,eax
+ adc edx,0
+ mov DWORD [28+ebx*4+esp],ebp
+ xor eax,eax
+ mov ecx,DWORD [12+esp]
+ add edx,DWORD [36+ebx*4+esp]
+ adc eax,DWORD [40+ebx*4+esp]
+ lea ecx,[4+ecx]
+ mov DWORD [32+ebx*4+esp],edx
+ cmp ecx,DWORD [28+esp]
+ mov DWORD [36+ebx*4+esp],eax
+ je NEAR L$005common_tail
+ mov edi,DWORD [ecx]
+ mov esi,DWORD [8+esp]
+ mov DWORD [12+esp],ecx
+ xor ecx,ecx
+ xor edx,edx
+ mov eax,DWORD [esi]
+ jmp NEAR L$0041stmadd
+align 16
+L$001bn_sqr_mont:
+ mov DWORD [esp],ebx
+ mov DWORD [12+esp],ecx
+ mov eax,edi
+ mul edi
+ mov DWORD [32+esp],eax
+ mov ebx,edx
+ shr edx,1
+ and ebx,1
+ inc ecx
+align 16
+L$006sqr:
+ mov eax,DWORD [ecx*4+esi]
+ mov ebp,edx
+ mul edi
+ add eax,ebp
+ lea ecx,[1+ecx]
+ adc edx,0
+ lea ebp,[eax*2+ebx]
+ shr eax,31
+ cmp ecx,DWORD [esp]
+ mov ebx,eax
+ mov DWORD [28+ecx*4+esp],ebp
+ jl NEAR L$006sqr
+ mov eax,DWORD [ecx*4+esi]
+ mov ebp,edx
+ mul edi
+ add eax,ebp
+ mov edi,DWORD [20+esp]
+ adc edx,0
+ mov esi,DWORD [16+esp]
+ lea ebp,[eax*2+ebx]
+ imul edi,DWORD [32+esp]
+ shr eax,31
+ mov DWORD [32+ecx*4+esp],ebp
+ lea ebp,[edx*2+eax]
+ mov eax,DWORD [esi]
+ shr edx,31
+ mov DWORD [36+ecx*4+esp],ebp
+ mov DWORD [40+ecx*4+esp],edx
+ mul edi
+ add eax,DWORD [32+esp]
+ mov ebx,ecx
+ adc edx,0
+ mov eax,DWORD [4+esi]
+ mov ecx,1
+align 16
+L$0073rdmadd:
+ mov ebp,edx
+ mul edi
+ add ebp,DWORD [32+ecx*4+esp]
+ adc edx,0
+ add ebp,eax
+ mov eax,DWORD [4+ecx*4+esi]
+ adc edx,0
+ mov DWORD [28+ecx*4+esp],ebp
+ mov ebp,edx
+ mul edi
+ add ebp,DWORD [36+ecx*4+esp]
+ lea ecx,[2+ecx]
+ adc edx,0
+ add ebp,eax
+ mov eax,DWORD [ecx*4+esi]
+ adc edx,0
+ cmp ecx,ebx
+ mov DWORD [24+ecx*4+esp],ebp
+ jl NEAR L$0073rdmadd
+ mov ebp,edx
+ mul edi
+ add ebp,DWORD [32+ebx*4+esp]
+ adc edx,0
+ add ebp,eax
+ adc edx,0
+ mov DWORD [28+ebx*4+esp],ebp
+ mov ecx,DWORD [12+esp]
+ xor eax,eax
+ mov esi,DWORD [8+esp]
+ add edx,DWORD [36+ebx*4+esp]
+ adc eax,DWORD [40+ebx*4+esp]
+ mov DWORD [32+ebx*4+esp],edx
+ cmp ecx,ebx
+ mov DWORD [36+ebx*4+esp],eax
+ je NEAR L$005common_tail
+ mov edi,DWORD [4+ecx*4+esi]
+ lea ecx,[1+ecx]
+ mov eax,edi
+ mov DWORD [12+esp],ecx
+ mul edi
+ add eax,DWORD [32+ecx*4+esp]
+ adc edx,0
+ mov DWORD [32+ecx*4+esp],eax
+ xor ebp,ebp
+ cmp ecx,ebx
+ lea ecx,[1+ecx]
+ je NEAR L$008sqrlast
+ mov ebx,edx
+ shr edx,1
+ and ebx,1
+align 16
+L$009sqradd:
+ mov eax,DWORD [ecx*4+esi]
+ mov ebp,edx
+ mul edi
+ add eax,ebp
+ lea ebp,[eax*1+eax]
+ adc edx,0
+ shr eax,31
+ add ebp,DWORD [32+ecx*4+esp]
+ lea ecx,[1+ecx]
+ adc eax,0
+ add ebp,ebx
+ adc eax,0
+ cmp ecx,DWORD [esp]
+ mov DWORD [28+ecx*4+esp],ebp
+ mov ebx,eax
+ jle NEAR L$009sqradd
+ mov ebp,edx
+ add edx,edx
+ shr ebp,31
+ add edx,ebx
+ adc ebp,0
+L$008sqrlast:
+ mov edi,DWORD [20+esp]
+ mov esi,DWORD [16+esp]
+ imul edi,DWORD [32+esp]
+ add edx,DWORD [32+ecx*4+esp]
+ mov eax,DWORD [esi]
+ adc ebp,0
+ mov DWORD [32+ecx*4+esp],edx
+ mov DWORD [36+ecx*4+esp],ebp
+ mul edi
+ add eax,DWORD [32+esp]
+ lea ebx,[ecx-1]
+ adc edx,0
+ mov ecx,1
+ mov eax,DWORD [4+esi]
+ jmp NEAR L$0073rdmadd
+align 16
+L$005common_tail:
+ mov ebp,DWORD [16+esp]
+ mov edi,DWORD [4+esp]
+ lea esi,[32+esp]
+ mov eax,DWORD [esi]
+ mov ecx,ebx
+ xor edx,edx
+align 16
+L$010sub:
+ sbb eax,DWORD [edx*4+ebp]
+ mov DWORD [edx*4+edi],eax
+ dec ecx
+ mov eax,DWORD [4+edx*4+esi]
+ lea edx,[1+edx]
+ jge NEAR L$010sub
+ sbb eax,0
+align 16
+L$011copy:
+ mov edx,DWORD [ebx*4+esi]
+ mov ebp,DWORD [ebx*4+edi]
+ xor edx,ebp
+ and edx,eax
+ xor edx,ebp
+ mov DWORD [ebx*4+esi],ecx
+ mov DWORD [ebx*4+edi],edx
+ dec ebx
+ jge NEAR L$011copy
+ mov esp,DWORD [24+esp]
+ mov eax,1
+L$000just_leave:
+ pop edi
+ pop esi
+ pop ebx
+ pop ebp
+ ret
+db 77,111,110,116,103,111,109,101,114,121,32,77,117,108,116,105
+db 112,108,105,99,97,116,105,111,110,32,102,111,114,32,120,56
+db 54,44,32,67,82,89,80,84,79,71,65,77,83,32,98,121
+db 32,60,97,112,112,114,111,64,111,112,101,110,115,115,108,46
+db 111,114,103,62,0
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