section .sharedFunctions

extern onInterrupt
extern temporaryESP
extern handleSyscallEnd
extern onException

global interruptStack
interruptStack: resb 1024

interruptReturn:
  pop eax
  pop ebx
  pop ecx
  pop edx
  ret

exceptionAbort:
  mov ebx, [esp+24]
  cmp ecx, 0x500000
  je $
  mov ecx, 0x500000
  mov cr3, ecx
  push ebp
  call onException
  mov eax, [temporaryESP]
  mov esp, eax
  pop ebp
  ret

handleInterrupt:
.saveRegisters:
  push eax
  push ebx
  push ecx
  push edx
  mov ecx, cr3
  push ecx
.checkException:
  mov eax, [esp+20]
  cmp eax, 31
  jng exceptionAbort
.goToKernelPages:
  mov eax, 0x500000
  mov cr3, eax
  call onInterrupt
  pop eax
  mov cr3, eax
  pop edx
  pop ecx
  pop ebx
  pop eax
  add esp, 8
  iretd

%macro interruptHandler 1
  ALIGN 4
  global idtHandler%1
idtHandler%1:
  push 0
  push %1
  jmp handleInterrupt
%endmacro

%macro interruptHandlerError 1
  align 4
  global idtHandler%1
idtHandler%1:
  push %1
  jmp handleInterrupt
%endmacro

interruptHandler 0
interruptHandler 1
interruptHandler 2
interruptHandler 3
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interruptHandlerError 8
interruptHandler 9
interruptHandlerError 10
interruptHandlerError 11
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interruptHandlerError 13
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