diff options
Diffstat (limited to 'deps/openssl/asm/x64-win32-masm/x86_64cpuid.asm')
| -rw-r--r-- | deps/openssl/asm/x64-win32-masm/x86_64cpuid.asm | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/deps/openssl/asm/x64-win32-masm/x86_64cpuid.asm b/deps/openssl/asm/x64-win32-masm/x86_64cpuid.asm new file mode 100644 index 0000000000..db26276770 --- /dev/null +++ b/deps/openssl/asm/x64-win32-masm/x86_64cpuid.asm @@ -0,0 +1,186 @@ +OPTION DOTNAME +EXTERN OPENSSL_cpuid_setup:NEAR +.CRT$XCU SEGMENT READONLY DWORD + DQ OPENSSL_cpuid_setup + +.CRT$XCU ENDS +.text$ SEGMENT ALIGN(64) 'CODE' + +PUBLIC OPENSSL_atomic_add + +ALIGN 16 +OPENSSL_atomic_add PROC PUBLIC + mov eax,DWORD PTR[rcx] +$L$spin:: lea r8,QWORD PTR[rax*1+rdx] +DB 0f0h + + cmpxchg DWORD PTR[rcx],r8d + jne $L$spin + mov eax,r8d +DB 048h,098h + + DB 0F3h,0C3h ;repret +OPENSSL_atomic_add ENDP + +PUBLIC OPENSSL_rdtsc + +ALIGN 16 +OPENSSL_rdtsc PROC PUBLIC + rdtsc + shl rdx,32 + or rax,rdx + DB 0F3h,0C3h ;repret +OPENSSL_rdtsc ENDP + +PUBLIC OPENSSL_ia32_cpuid + +ALIGN 16 +OPENSSL_ia32_cpuid PROC PUBLIC + mov r8,rbx + + xor eax,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,080000008h + jb $L$intel + + mov eax,080000008h + cpuid + movzx r10,cl + inc r10 + + mov eax,1 + cpuid + bt edx,28 + jnc $L$done + shr ebx,16 + cmp bl,r10b + ja $L$done + and edx,0efffffffh + jmp $L$done + +$L$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 + +$L$nocacheinfo:: + mov eax,1 + cpuid + cmp r9d,0 + jne $L$notintel + or edx,000100000h + and ah,15 + cmp ah,15 + je $L$notintel + or edx,040000000h +$L$notintel:: + bt edx,28 + jnc $L$done + and edx,0efffffffh + cmp r10d,0 + je $L$done + + or edx,010000000h + shr ebx,16 + cmp bl,1 + ja $L$done + and edx,0efffffffh +$L$done:: + shl rcx,32 + mov eax,edx + mov rbx,r8 + or rax,rcx + DB 0F3h,0C3h ;repret +OPENSSL_ia32_cpuid ENDP + +PUBLIC OPENSSL_cleanse + +ALIGN 16 +OPENSSL_cleanse PROC PUBLIC + xor rax,rax + cmp rdx,15 + jae $L$ot + cmp rdx,0 + je $L$ret +$L$ittle:: + mov BYTE PTR[rcx],al + sub rdx,1 + lea rcx,QWORD PTR[1+rcx] + jnz $L$ittle +$L$ret:: + DB 0F3h,0C3h ;repret +ALIGN 16 +$L$ot:: + test rcx,7 + jz $L$aligned + mov BYTE PTR[rcx],al + lea rdx,QWORD PTR[((-1))+rdx] + lea rcx,QWORD PTR[1+rcx] + jmp $L$ot +$L$aligned:: + mov QWORD PTR[rcx],rax + lea rdx,QWORD PTR[((-8))+rdx] + test rdx,-8 + lea rcx,QWORD PTR[8+rcx] + jnz $L$aligned + cmp rdx,0 + jne $L$ittle + DB 0F3h,0C3h ;repret +OPENSSL_cleanse ENDP +PUBLIC OPENSSL_wipe_cpu + +ALIGN 16 +OPENSSL_wipe_cpu PROC PUBLIC + pxor xmm0,xmm0 + pxor xmm1,xmm1 + pxor xmm2,xmm2 + pxor xmm3,xmm3 + pxor xmm4,xmm4 + pxor xmm5,xmm5 + xor rcx,rcx + xor rdx,rdx + xor r8,r8 + xor r9,r9 + xor r10,r10 + xor r11,r11 + lea rax,QWORD PTR[8+rsp] + DB 0F3h,0C3h ;repret +OPENSSL_wipe_cpu ENDP + +.text$ ENDS +END |