hal/halx86/up/pic.S

   1 /*
   2  * FILE:            hal/halx86/up/pic.S
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PURPOSE:         HAL PIC Management and Control Code
   5  * PROGRAMMER:      Thomas Faber (thomas.faber@reactos.org)
   6  */
   7
   8 /* INCLUDES ******************************************************************/
   9
  10 #include <asm.inc>
  11
  12 #include <ks386.inc>
  13
  14 EXTERN _HalpEndSoftwareInterrupt2@8:PROC
  15
  16 /* GLOBALS *******************************************************************/
  17
  18 .data
  19 ASSUME CS:NOTHING, DS:NOTHING, ES:NOTHING, FS:NOTHING, GS:NOTHING
  20
  21 /* FUNCTIONS *****************************************************************/
  22
  23 .code
  24 PUBLIC _HalpEndSoftwareInterrupt@8
  25 .PROC _HalpEndSoftwareInterrupt@8
  26     FPO 0, 2, 0, 0, 0, FRAME_FPO
  27
  28     /* Call the C function with the same arguments we got */
  29     push [esp+8]
  30     push [esp+8]
  31     call _HalpEndSoftwareInterrupt2@8
  32
  33     /* Check if we got a pointer back */
  34     test eax, eax
  35     jnz CallIntHandler
  36
  37     /* No? Just return */
  38     ret 8
  39
  40 CallIntHandler:
  41     /* We got a pointer to call. Since it won't return, free up our stack
  42        space, or we could end up with some nasty deep recursion */
  43     mov ecx, [esp+8]
  44     add esp, 12
  45     jmp eax
  46 .ENDP
  47
  48 END