;; @file
;  Assembly code that supports x64 for CpuExceptionHandlerLib
;
;******************************************************************************
;* Copyright (c) 2015, Insyde Software Corporation. All Rights Reserved.
;*
;* You may not reproduce, distribute, publish, display, perform, modify, adapt,
;* transmit, broadcast, present, recite, release, license or otherwise exploit
;* any part of this publication in any form, by any means, without the prior
;* written permission of Insyde Software Corporation.
;*
;******************************************************************************

      TITLE   ThunkCpuExceptionHandlerLib.asm: Assembly code for the x64 resources

text    SEGMENT
;
; Save Timer0 callback function pointer.
;
TimerCallbackFunctionPtr QWORD 0 

InitializeTimerCallbackPtr PROC PUBLIC
  mov  TimerCallbackFunctionPtr, rcx
  ret
InitializeTimerCallbackPtr ENDP

POPA_64	MACRO 
	pop	r15 
	pop	r14 
	pop	r13 
	pop	r12 
	pop	r11 
	pop	r10 
	pop	r9 
	pop	r8 
	pop	rdi 
	pop	rsi 
	pop	rdx 
	pop	rcx 
	pop	rbx 
	pop	rax 
	pop	rbp 
	pop	rsp 
ENDM 

PUSHA_64   MACRO
	push	rsp 
	push	rbp 
	push	rax 
	push	rbx 
	push	rcx 
	push	rdx 
	push	rsi 
	push	rdi 
	push	r8 
	push	r9 
	push	r10 
	push	r11 
	push	r12 
	push	r13 
	push	r14 
	push	r15 
ENDM 

;
;---------------------------------------;
; InterruptEntry                        ;
;---------------------------------------;
; IRQ0 interrupt serivce routine.
;
InterruptEntry PROC  PUBLIC  
  cli
  PUSHA_64
  ;
  ; 8259 IRQ0 EOI
  ;
  mov     al, 0x20
  out     0x20, al
  
  mov     rax, TimerCallbackFunctionPtr  
  
  sub     rsp, 0x28
  call    rax
  cli
  add     rsp, 0x28

  POPA_64
  iretq
InterruptEntry ENDP

text  ENDS
END