reactos/hal/halx86/generic/i386/trap.S

   1 /*
   2  * FILE:            ntoskrnl/ke/i386/trap.S
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PURPOSE:         System Traps, Entrypoints and Exitpoints
   5  * PROGRAMMER:      Timo Kreuzer (timo.kreuzer@reactos.org)
   6  * NOTE:            See asmmacro.S for the shared entry/exit code.
   7  */
   8
   9 /* INCLUDES ******************************************************************/
  10
  11 #include <reactos/asm.h>
  12 #include <ndk/i386/asm.h>
  13 #include <internal/i386/asmmacro.S>
  14
  15 .code32
  16 .text
  17
  18 TRAP_ENTRY HalpTrap0D, 0
  19 TRAP_ENTRY HalpApcInterrupt, KI_SOFTWARE_TRAP
  20 TRAP_ENTRY HalpClockInterrupt, KI_PUSH_FAKE_ERROR_CODE
  21 TRAP_ENTRY HalpProfileInterrupt, KI_PUSH_FAKE_ERROR_CODE
  22
  23 PUBLIC @HalpExitToV86@4
  24 @HalpExitToV86@4:
  25     /* Point esp to the iret frame and return */
  26     lea esp, [ecx + KTRAP_FRAME_EIP]
  27     iret
  28
  29 /* Here starts the real mode code */
  30 .code16
  31 PUBLIC _HalpRealModeStart
  32 _HalpRealModeStart:
  33     /* INT 0x10: AH = 0 (Set video Mode), AL = 0x12 (Mode 12) */
  34     mov eax, HEX(12)
  35     int HEX(10)
  36
  37     /* BOP */
  38     .byte HEX(C4), HEX(C4)
  39
  40 /* The real mode stack */
  41 .align 4
  42 .space 2048
  43 _HalpRealModeEnd:
  44 PUBLIC _HalpRealModeEnd
  45