blob: c92d7bbc1f778c679b9381354e2d8f21e9ec8c06 [file] [log] [blame]
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: