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CPU_AESNI_Supported.asm
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CPU_AESNI_Supported.asm
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;==============================================================================
;
; UASM64 Library
;
; https://github.com/mrfearless/UASM64-Library
;
;==============================================================================
.686
.MMX
.XMM
.x64
option casemap : none
IF @Platform EQ 1
option win64 : 11
ENDIF
option frame : auto
include UASM64.inc
.CODE
UASM64_ALIGN
;------------------------------------------------------------------------------
; CPU_AESNI_Supported
;
; Check if Advanced Encryption Standard New Instructions (AES-NI) instructions
; are supported.
;
; Parameters:
;
; There are no parameters.
;
; Returns:
;
; TRUE if AES-NI instructions are supported, or FALSE otherwise.
;
; Notes:
;
; https://en.wikipedia.org/wiki/AES_instruction_set
;
; See Also:
;
; CPU_CPUID_Supported, CPU_AVX_Supported
;
;------------------------------------------------------------------------------
CPU_AESNI_Supported PROC FRAME USES RBX RCX RDX
Invoke CPU_CPUID_Supported
.IF rax == FALSE
jmp CPU_AESNI_Supported_Error
.ENDIF
xor rax, rax
xor rbx, rbx
xor rcx, rcx
xor rdx, rdx
mov eax, 1
cpuid
shr ecx, 25
and ecx, 1
mov eax, ecx
jmp CPU_AESNI_Supported_Exit
CPU_AESNI_Supported_Error:
mov rax, 0
CPU_AESNI_Supported_Exit:
ret
CPU_AESNI_Supported ENDP
END