kernel/system/sys_ints.asm

   1 ;----------------------------------------------------------;
   2 ; BOS 0.04                  Christoffer Bubach, 2004-2005. ;
   3 ;----------------------------------------------------------;
   4 ;                                                          ;
   5 ;     System interrupts..                                  ;
   6 ;                                                          ;
   7 ;----------------------------------------------------------;
   8
   9   ;----------------------------------------------------;
  10   ; TODO:   A lot, when user programs can be runned..  ;
  11   ;----------------------------------------------------;
  12
  13 ;--------------------------;
  14 ;  System interrupt 0x32   ;
  15 ;--------------------------;
  16
  17           isr32_str_1       db   "ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»", 0
  18           isr32_str_2       db   "º    \10 INT 32 CALLED!!    º", 0
  19           isr32_str_3       db   "º          \ 2 \ 1            º", 0
  20           isr32_str_4       db   "ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ¼", 0
  21
  22           isr32_str_5       db   "CTRL+ALT+DEL was pressed!", 0
  23
  24 interrupt_32:
  25
  26     ;-----------------;
  27     ;   get char      ;
  28     ;-----------------;
  29           cmp     ax, 0x0001                          ; get character int..
  30           jne     .cade
  31
  32           call    getc
  33
  34           jmp     .end
  35
  36     ;-----------------------------;
  37     ;  ctrl+alt+delete function   ;
  38     ;-----------------------------;
  39     .cade:
  40           cmp     ax, 0xCADE                          ; CTRL+ALT+DEL was pressed
  41           jne     .ordinary
  42
  43           push    bx
  44           push    cx
  45           push    dx
  46
  47           call    getcursor
  48           mov     cx, bx
  49
  50           mov     dl, 0x0C
  51           mov     dh, 0x1B
  52           call    setcursorxy
  53
  54           mov     esi, isr32_str_5
  55           mov     al, 0x40
  56           call    print
  57
  58           mov     bx, cx
  59           call    setcursor
  60
  61           pop     dx
  62           pop     cx
  63           pop     bx
  64
  65           jmp     .end
  66
  67     ;-----------------------------;
  68     ;   no selected function..    ;
  69     ;-----------------------------;
  70      .ordinary:                                       ; print that int 0x32 was called...
  71           push    bx
  72           push    cx
  73           push    dx
  74
  75           mov     dl, 0x0B
  76           mov     dh, 0x1A
  77           call    setcursorxy
  78
  79           mov     esi, isr32_str_1
  80           mov     bl, 0x40
  81           call    print
  82
  83           mov     dl, 0x0C
  84           mov     dh, 0x1A
  85           call    setcursorxy
  86
  87           mov     esi, isr32_str_2
  88           mov     bl, 0x40
  89           call    print
  90
  91           mov     dl, 0x0D
  92           mov     dh, 0x1A
  93           call    setcursorxy
  94
  95           mov     esi, isr32_str_3
  96           mov     bl, 0x40
  97           call    print
  98
  99           mov     dl, 0x0E
 100           mov     dh, 0x1A
 101           call    setcursorxy
 102
 103           mov     esi, isr32_str_4
 104           mov     bl, 0x40
 105           call    print
 106
 107           pop     dx
 108           pop     cx
 109           pop     bx
 110
 111      .end:
 112           ret