From b7c51c9cf4864df6aabb99a1ae843becd577237c Mon Sep 17 00:00:00 2001
From: raywu <raywu0301@gmail.com>
Date: Fri, 15 Jun 2018 00:00:50 +0800
Subject: init. 1AQQW051

---
 .../CPU/x64/x64AsmLib/CPULib_GetInterruptState.asm | 87 ++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 Core/CPU/x64/x64AsmLib/CPULib_GetInterruptState.asm

(limited to 'Core/CPU/x64/x64AsmLib/CPULib_GetInterruptState.asm')

diff --git a/Core/CPU/x64/x64AsmLib/CPULib_GetInterruptState.asm b/Core/CPU/x64/x64AsmLib/CPULib_GetInterruptState.asm
new file mode 100644
index 0000000..436cba7
--- /dev/null
+++ b/Core/CPU/x64/x64AsmLib/CPULib_GetInterruptState.asm
@@ -0,0 +1,87 @@
+;*************************************************************************
+;*************************************************************************
+;**                                                                     **
+;**        (C)Copyright 1985-2009, American Megatrends, Inc.            **
+;**                                                                     **
+;**                       All Rights Reserved.                          **
+;**                                                                     **
+;**      5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093           **
+;**                                                                     **
+;**                       Phone: (770)-246-8600                         **
+;**                                                                     **
+;*************************************************************************
+;*************************************************************************
+
+;*************************************************************************
+; $Header: /Alaska/SOURCE/Core/Modules/x64Core/x64AsmLib/CPULib_GetInterruptState.asm 1     10/01/10 5:07p Felixp $
+;
+; $Revision: 1 $
+;
+; $Date: 10/01/10 5:07p $
+;*************************************************************************
+; Revision History
+; ----------------
+; $Log: /Alaska/SOURCE/Core/Modules/x64Core/x64AsmLib/CPULib_GetInterruptState.asm $
+; 
+; 1     10/01/10 5:07p Felixp
+; 
+; 1     8/24/06 12:57p Felixp
+; 
+;*************************************************************************
+;<AMI_FHDR_START>
+;
+; Name:
+;
+; Description:
+;
+;<AMI_FHDR_END>
+;*************************************************************************
+.code
+
+;*************************************************************************
+;<AMI_PHDR_START>
+;
+; Name: CPULib_GetInterruptState
+;
+; Description:
+;  BOOLEAN CPULib_GetInterruptState()returns the current CPU interrupt state.
+;
+; Input:
+;  VOID.
+;
+; Output:
+;  FALSE if interrupts are disabled; otherwise TRUE.
+;
+; Modified:
+;
+; Referrals:
+;
+; Notes:
+;
+;<AMI_PHDR_END>
+;*************************************************************************
+CPULib_GetInterruptState	PROC PUBLIC
+	xor	cl, cl
+	pushf			; push flags onto stack.
+	pop	ax		    ; eax = flags.
+	bt	ax, 9		; IF (bit 9) if set, set carry flag.
+                                ; Interrupts are allowed if IF is set.
+	adc	cl, 0		; CL = IF = CF.
+
+	mov	al, cl		; Return value
+	ret
+CPULib_GetInterruptState	ENDP
+
+END
+;*************************************************************************
+;*************************************************************************
+;**                                                                     **
+;**        (C)Copyright 1985-2009, American Megatrends, Inc.            **
+;**                                                                     **
+;**                       All Rights Reserved.                          **
+;**                                                                     **
+;**      5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093           **
+;**                                                                     **
+;**                       Phone: (770)-246-8600                         **
+;**                                                                     **
+;*************************************************************************
-- 
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