diff options
Diffstat (limited to 'win-x86_64/crypto/cpu-x86_64-asm.asm')
| -rw-r--r-- | win-x86_64/crypto/cpu-x86_64-asm.asm | 154 |
1 files changed, 154 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..c92d7bb --- /dev/null +++ b/win-x86_64/crypto/cpu-x86_64-asm.asm @@ -0,0 +1,154 @@ +default rel +%define XMMWORD +%define YMMWORD +%define ZMMWORD +section .text code align=64 + + +global OPENSSL_ia32_cpuid + +ALIGN 16 +OPENSSL_ia32_cpuid: + mov QWORD[8+rsp],rdi ;WIN64 prologue + mov QWORD[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[8+rdi],eax + cpuid + mov r11d,eax + + xor eax,eax + cmp ebx,0x756e6547 + setne al + mov r9d,eax + cmp edx,0x49656e69 + setne al + or r9d,eax + cmp ecx,0x6c65746e + setne al + or r9d,eax + jz NEAR $L$intel + + cmp ebx,0x68747541 + setne al + mov r10d,eax + cmp edx,0x69746E65 + setne al + or r10d,eax + cmp ecx,0x444D4163 + setne al + or r10d,eax + jnz NEAR $L$intel + + + + + mov eax,0x80000000 + cpuid + + + cmp eax,0x80000001 + jb NEAR $L$intel + mov r10d,eax + mov eax,0x80000001 + cpuid + + + or r9d,ecx + and r9d,0x00000801 + + cmp r10d,0x80000008 + jb NEAR $L$intel + + mov eax,0x80000008 + cpuid + + movzx r10,cl + inc r10 + + mov eax,1 + cpuid + + bt edx,28 + jnc NEAR $L$generic + shr ebx,16 + cmp bl,r10b + ja NEAR $L$generic + and edx,0xefffffff + jmp NEAR $L$generic + +$L$intel: + cmp r11d,4 + mov r10d,-1 + jb NEAR $L$nocacheinfo + + mov eax,4 + mov ecx,0 + cpuid + mov r10d,eax + shr r10d,14 + and r10d,0xfff + + cmp r11d,7 + jb NEAR $L$nocacheinfo + + mov eax,7 + xor ecx,ecx + cpuid + mov DWORD[8+rdi],ebx + +$L$nocacheinfo: + mov eax,1 + cpuid + + and edx,0xbfefffff + cmp r9d,0 + jne NEAR $L$notintel + or edx,0x40000000 +$L$notintel: + bt edx,28 + jnc NEAR $L$generic + and edx,0xefffffff + cmp r10d,0 + je NEAR $L$generic + + or edx,0x10000000 + shr ebx,16 + cmp bl,1 + ja NEAR $L$generic + and edx,0xefffffff +$L$generic: + and r9d,0x00000800 + and ecx,0xfffff7ff + or r9d,ecx + + mov r10d,edx + bt r9d,27 + jnc NEAR $L$clear_avx + xor ecx,ecx +DB 0x0f,0x01,0xd0 + and eax,6 + cmp eax,6 + je NEAR $L$done +$L$clear_avx: + mov eax,0xefffe7ff + and r9d,eax + and DWORD[8+rdi],0xffffffdf +$L$done: + mov DWORD[4+rdi],r9d + mov DWORD[rdi],r10d + mov rbx,r8 + mov rdi,QWORD[8+rsp] ;WIN64 epilogue + mov rsi,QWORD[16+rsp] + DB 0F3h,0C3h ;repret +$L$SEH_end_OPENSSL_ia32_cpuid: + |