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366 lines
5.8 KiB
366 lines
5.8 KiB
TITLE x86cpuid.asm
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IF @Version LT 800
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ECHO MASM version 8.00 or later is strongly recommended.
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ENDIF
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.686
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.XMM
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IF @Version LT 800
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XMMWORD STRUCT 16
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DQ 2 dup (?)
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XMMWORD ENDS
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ENDIF
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.MODEL FLAT
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OPTION DOTNAME
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IF @Version LT 800
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.text$ SEGMENT PAGE 'CODE'
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ELSE
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.text$ SEGMENT ALIGN(64) 'CODE'
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ENDIF
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ALIGN 16
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_OPENSSL_ia32_cpuid PROC PUBLIC
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$L_OPENSSL_ia32_cpuid_begin::
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push ebp
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push ebx
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push esi
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push edi
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xor edx,edx
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pushfd
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pop eax
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mov ecx,eax
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xor eax,2097152
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push eax
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popfd
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pushfd
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pop eax
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xor ecx,eax
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xor eax,eax
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bt ecx,21
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jnc $L000nocpuid
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mov esi,DWORD PTR 20[esp]
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mov DWORD PTR 8[esi],eax
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cpuid
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mov edi,eax
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xor eax,eax
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cmp ebx,1970169159
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setne al
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mov ebp,eax
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cmp edx,1231384169
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setne al
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or ebp,eax
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cmp ecx,1818588270
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setne al
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or ebp,eax
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jz $L001intel
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cmp ebx,1752462657
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setne al
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mov esi,eax
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cmp edx,1769238117
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setne al
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or esi,eax
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cmp ecx,1145913699
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setne al
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or esi,eax
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jnz $L001intel
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mov eax,2147483648
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cpuid
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cmp eax,2147483649
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jb $L001intel
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mov esi,eax
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mov eax,2147483649
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cpuid
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or ebp,ecx
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and ebp,2049
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cmp esi,2147483656
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jb $L001intel
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mov eax,2147483656
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cpuid
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movzx esi,cl
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inc esi
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mov eax,1
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xor ecx,ecx
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cpuid
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bt edx,28
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jnc $L002generic
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shr ebx,16
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and ebx,255
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cmp ebx,esi
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ja $L002generic
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and edx,4026531839
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jmp $L002generic
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$L001intel:
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cmp edi,7
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jb $L003cacheinfo
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mov esi,DWORD PTR 20[esp]
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mov eax,7
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xor ecx,ecx
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cpuid
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mov DWORD PTR 8[esi],ebx
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$L003cacheinfo:
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cmp edi,4
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mov edi,-1
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jb $L004nocacheinfo
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mov eax,4
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mov ecx,0
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cpuid
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mov edi,eax
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shr edi,14
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and edi,4095
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$L004nocacheinfo:
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mov eax,1
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xor ecx,ecx
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cpuid
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and edx,3220176895
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cmp ebp,0
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jne $L005notintel
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or edx,1073741824
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and ah,15
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cmp ah,15
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jne $L005notintel
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or edx,1048576
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$L005notintel:
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bt edx,28
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jnc $L002generic
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and edx,4026531839
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cmp edi,0
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je $L002generic
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or edx,268435456
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shr ebx,16
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cmp bl,1
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ja $L002generic
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and edx,4026531839
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$L002generic:
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and ebp,2048
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and ecx,4294965247
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mov esi,edx
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or ebp,ecx
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bt ecx,27
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jnc $L006clear_avx
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xor ecx,ecx
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DB 15,1,208
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and eax,6
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cmp eax,6
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je $L007done
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cmp eax,2
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je $L006clear_avx
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$L008clear_xmm:
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and ebp,4261412861
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and esi,4278190079
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$L006clear_avx:
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and ebp,4026525695
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mov edi,DWORD PTR 20[esp]
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and DWORD PTR 8[edi],4294967263
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$L007done:
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mov eax,esi
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mov edx,ebp
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$L000nocpuid:
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pop edi
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pop esi
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pop ebx
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pop ebp
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ret
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_OPENSSL_ia32_cpuid ENDP
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;EXTERN _OPENSSL_ia32cap_P:NEAR
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ALIGN 16
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_OPENSSL_rdtsc PROC PUBLIC
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$L_OPENSSL_rdtsc_begin::
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xor eax,eax
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xor edx,edx
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lea ecx,DWORD PTR _OPENSSL_ia32cap_P
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bt DWORD PTR [ecx],4
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jnc $L009notsc
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rdtsc
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$L009notsc:
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ret
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_OPENSSL_rdtsc ENDP
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ALIGN 16
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_OPENSSL_instrument_halt PROC PUBLIC
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$L_OPENSSL_instrument_halt_begin::
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lea ecx,DWORD PTR _OPENSSL_ia32cap_P
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bt DWORD PTR [ecx],4
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jnc $L010nohalt
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DD 2421723150
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and eax,3
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jnz $L010nohalt
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pushfd
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pop eax
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bt eax,9
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jnc $L010nohalt
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rdtsc
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push edx
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push eax
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hlt
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rdtsc
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sub eax,DWORD PTR [esp]
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sbb edx,DWORD PTR 4[esp]
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add esp,8
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ret
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$L010nohalt:
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xor eax,eax
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xor edx,edx
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ret
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_OPENSSL_instrument_halt ENDP
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ALIGN 16
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_OPENSSL_far_spin PROC PUBLIC
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$L_OPENSSL_far_spin_begin::
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pushfd
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pop eax
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bt eax,9
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jnc $L011nospin
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mov eax,DWORD PTR 4[esp]
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mov ecx,DWORD PTR 8[esp]
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DD 2430111262
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xor eax,eax
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mov edx,DWORD PTR [ecx]
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jmp $L012spin
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ALIGN 16
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$L012spin:
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inc eax
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cmp edx,DWORD PTR [ecx]
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je $L012spin
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DD 529567888
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ret
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$L011nospin:
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xor eax,eax
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xor edx,edx
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ret
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_OPENSSL_far_spin ENDP
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ALIGN 16
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_OPENSSL_wipe_cpu PROC PUBLIC
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$L_OPENSSL_wipe_cpu_begin::
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xor eax,eax
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xor edx,edx
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lea ecx,DWORD PTR _OPENSSL_ia32cap_P
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mov ecx,DWORD PTR [ecx]
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bt DWORD PTR [ecx],1
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jnc $L013no_x87
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and ecx,83886080
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cmp ecx,83886080
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jne $L014no_sse2
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pxor xmm0,xmm0
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pxor xmm1,xmm1
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pxor xmm2,xmm2
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pxor xmm3,xmm3
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pxor xmm4,xmm4
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pxor xmm5,xmm5
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pxor xmm6,xmm6
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pxor xmm7,xmm7
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$L014no_sse2:
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DD 4007259865,4007259865,4007259865,4007259865
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DD 2430851995
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$L013no_x87:
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lea eax,DWORD PTR 4[esp]
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ret
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_OPENSSL_wipe_cpu ENDP
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ALIGN 16
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_OPENSSL_atomic_add PROC PUBLIC
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$L_OPENSSL_atomic_add_begin::
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mov edx,DWORD PTR 4[esp]
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mov ecx,DWORD PTR 8[esp]
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push ebx
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nop
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mov eax,DWORD PTR [edx]
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$L015spin:
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lea ebx,DWORD PTR [ecx*1+eax]
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nop
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DD 447811568
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jne $L015spin
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mov eax,ebx
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pop ebx
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ret
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_OPENSSL_atomic_add ENDP
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ALIGN 16
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_OPENSSL_indirect_call PROC PUBLIC
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$L_OPENSSL_indirect_call_begin::
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push ebp
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mov ebp,esp
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sub esp,28
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mov ecx,DWORD PTR 12[ebp]
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mov DWORD PTR [esp],ecx
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mov edx,DWORD PTR 16[ebp]
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mov DWORD PTR 4[esp],edx
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mov eax,DWORD PTR 20[ebp]
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mov DWORD PTR 8[esp],eax
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mov eax,DWORD PTR 24[ebp]
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mov DWORD PTR 12[esp],eax
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mov eax,DWORD PTR 28[ebp]
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mov DWORD PTR 16[esp],eax
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mov eax,DWORD PTR 32[ebp]
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mov DWORD PTR 20[esp],eax
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mov eax,DWORD PTR 36[ebp]
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mov DWORD PTR 24[esp],eax
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call DWORD PTR 8[ebp]
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mov esp,ebp
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pop ebp
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ret
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_OPENSSL_indirect_call ENDP
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ALIGN 16
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_OPENSSL_cleanse PROC PUBLIC
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$L_OPENSSL_cleanse_begin::
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mov edx,DWORD PTR 4[esp]
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mov ecx,DWORD PTR 8[esp]
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xor eax,eax
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cmp ecx,7
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jae $L016lot
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cmp ecx,0
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je $L017ret
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$L018little:
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mov BYTE PTR [edx],al
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sub ecx,1
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lea edx,DWORD PTR 1[edx]
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jnz $L018little
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$L017ret:
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ret
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ALIGN 16
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$L016lot:
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test edx,3
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jz $L019aligned
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mov BYTE PTR [edx],al
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lea ecx,DWORD PTR [ecx-1]
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lea edx,DWORD PTR 1[edx]
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jmp $L016lot
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$L019aligned:
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mov DWORD PTR [edx],eax
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lea ecx,DWORD PTR [ecx-4]
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test ecx,-4
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lea edx,DWORD PTR 4[edx]
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jnz $L019aligned
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cmp ecx,0
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jne $L018little
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ret
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_OPENSSL_cleanse ENDP
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ALIGN 16
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_OPENSSL_ia32_rdrand PROC PUBLIC
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$L_OPENSSL_ia32_rdrand_begin::
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mov ecx,8
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$L020loop:
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DB 15,199,240
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jc $L021break
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loop $L020loop
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$L021break:
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cmp eax,0
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cmove eax,ecx
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ret
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_OPENSSL_ia32_rdrand ENDP
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ALIGN 16
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_OPENSSL_ia32_rdseed PROC PUBLIC
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$L_OPENSSL_ia32_rdseed_begin::
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mov ecx,8
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$L022loop:
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DB 15,199,248
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jc $L023break
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loop $L022loop
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$L023break:
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cmp eax,0
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cmove eax,ecx
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ret
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_OPENSSL_ia32_rdseed ENDP
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.text$ ENDS
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.bss SEGMENT 'BSS'
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COMM _OPENSSL_ia32cap_P:DWORD:4
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.bss ENDS
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.CRT$XCU SEGMENT DWORD PUBLIC 'DATA'
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EXTERN _OPENSSL_cpuid_setup:NEAR
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DD _OPENSSL_cpuid_setup
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.CRT$XCU ENDS
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END
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