diff options
| author | Adam Langley <agl@google.com> | 2015-01-22 14:27:53 -0800 |
|---|---|---|
| committer | Adam Langley <agl@google.com> | 2015-01-30 16:52:14 -0800 |
| commit | d9e397b599b13d642138480a28c14db7a136bf05 (patch) | |
| tree | 34bab61dc4ce323b123ad4614dbc07e86ea2f9ef /win-x86_64/crypto/cpu-x86_64-asm.asm | |
| download | external_boringssl-d9e397b599b13d642138480a28c14db7a136bf05.zip external_boringssl-d9e397b599b13d642138480a28c14db7a136bf05.tar.gz external_boringssl-d9e397b599b13d642138480a28c14db7a136bf05.tar.bz2 | |
Initial commit of BoringSSL for Android.
Diffstat (limited to 'win-x86_64/crypto/cpu-x86_64-asm.asm')
| -rw-r--r-- | win-x86_64/crypto/cpu-x86_64-asm.asm | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/win-x86_64/crypto/cpu-x86_64-asm.asm b/win-x86_64/crypto/cpu-x86_64-asm.asm new file mode 100644 index 0000000..dca66f5 --- /dev/null +++ b/win-x86_64/crypto/cpu-x86_64-asm.asm @@ -0,0 +1,158 @@ +OPTION DOTNAME +.text$ SEGMENT ALIGN(256) 'CODE' + +PUBLIC OPENSSL_ia32_cpuid + +ALIGN 16 +OPENSSL_ia32_cpuid PROC PUBLIC + mov QWORD PTR[8+rsp],rdi ;WIN64 prologue + mov QWORD PTR[16+rsp],rsi + mov rax,rsp +$L$SEH_begin_OPENSSL_ia32_cpuid:: + mov rdi,rcx + + + + + mov rdi,rcx + mov r8,rbx + + xor eax,eax + mov DWORD PTR[8+rdi],eax + cpuid + mov r11d,eax + + xor eax,eax + cmp ebx,0756e6547h + setne al + mov r9d,eax + cmp edx,049656e69h + setne al + or r9d,eax + cmp ecx,06c65746eh + setne al + or r9d,eax + jz $L$intel + + cmp ebx,068747541h + setne al + mov r10d,eax + cmp edx,069746E65h + setne al + or r10d,eax + cmp ecx,0444D4163h + setne al + or r10d,eax + jnz $L$intel + + + + + mov eax,080000000h + cpuid + + + cmp eax,080000001h + jb $L$intel + mov r10d,eax + mov eax,080000001h + cpuid + + + or r9d,ecx + and r9d,000000801h + + cmp r10d,080000008h + jb $L$intel + + mov eax,080000008h + cpuid + + movzx r10,cl + inc r10 + + mov eax,1 + cpuid + + bt edx,28 + jnc $L$generic + shr ebx,16 + cmp bl,r10b + ja $L$generic + and edx,0efffffffh + jmp $L$generic + +$L$intel:: + cmp r11d,4 + mov r10d,-1 + jb $L$nocacheinfo + + mov eax,4 + mov ecx,0 + cpuid + mov r10d,eax + shr r10d,14 + and r10d,0fffh + + cmp r11d,7 + jb $L$nocacheinfo + + mov eax,7 + xor ecx,ecx + cpuid + mov DWORD PTR[8+rdi],ebx + +$L$nocacheinfo:: + mov eax,1 + cpuid + + and edx,0bfefffffh + cmp r9d,0 + jne $L$notintel + or edx,040000000h + and ah,15 + cmp ah,15 + jne $L$notintel + or edx,000100000h +$L$notintel:: + bt edx,28 + jnc $L$generic + and edx,0efffffffh + cmp r10d,0 + je $L$generic + + or edx,010000000h + shr ebx,16 + cmp bl,1 + ja $L$generic + and edx,0efffffffh +$L$generic:: + and r9d,000000800h + and ecx,0fffff7ffh + or r9d,ecx + + mov r10d,edx + bt r9d,27 + jnc $L$clear_avx + xor ecx,ecx +DB 00fh,001h,0d0h + and eax,6 + cmp eax,6 + je $L$done +$L$clear_avx:: + mov eax,0efffe7ffh + and r9d,eax + and DWORD PTR[8+rdi],0ffffffdfh +$L$done:: + mov DWORD PTR[4+rdi],r9d + mov DWORD PTR[rdi],r10d + mov rbx,r8 + mov rdi,QWORD PTR[8+rsp] ;WIN64 epilogue + mov rsi,QWORD PTR[16+rsp] + DB 0F3h,0C3h ;repret +$L$SEH_end_OPENSSL_ia32_cpuid:: +OPENSSL_ia32_cpuid ENDP + + +.text$ ENDS +END |