WebSVN – Kolibri OS – Diff – /kernel/branches/flat_kernel/core/sys32.inc


;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;                                                               ;;
;;  MenuetOS process management, protected ring3                 ;;
;;                                                               ;;
;;  Distributed under GPL. See file COPYING for details.         ;;
;;  Copyright 2003 Ville Turjanmaa                               ;;
;;                                                               ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
align 4
idtreg:
     dw   8*0x41-1
     dd   idts+8
 
build_interrupt_table:
 
        mov    edi, idts+8
        mov    esi, sys_int
        mov    ecx, 0x40
     @@:
        mov    eax, [esi]
        mov    [edi],   ax           ; lower part of offset
        mov    [edi+2], word os_code ; segment selector
        shr    eax, 16
        mov    [edi+4], word 10001110b shl 8 ; interrupt descriptor
        mov    [edi+6], ax
        add    esi, 4
        add    edi, 8
        dec    ecx
        jnz    @b
 
        ;mov    edi,8*0x40+idts+8
        mov    [edi + 0], word (i40 and ((1 shl 16)-1))
        mov    [edi + 2], word os_code
        mov    [edi + 4], word 11101110b*256
        mov    [edi + 6], word (i40 shr 16)
 
        ret
 
iglobal
  sys_int:
    dd e0,debug_exc,e2,e3
    dd e4,e5,e6,e7
    dd e8,e9,e10,e11
    dd e12,e13,page_fault_handler,e15
 
    dd except_16, e17,e18, except_19
    times 12 dd unknown_interrupt
 
    dd   irq0  , irq_serv.irq_1, p_irq2 , p_irq3     ;irq_serv.irq_3
    dd   irq_serv.irq_4 ,irq_serv.irq_5,p_irq6,irq_serv.irq_7
    dd   irq_serv.irq_8, irq_serv.irq_9, irq_serv.irq_10
    dd   irq_serv.irq_11,p_irq12,irqD ,p_irq14,p_irq15
 
    times 16 dd unknown_interrupt
 
    dd   i40
endg
 
macro save_ring3_context
{
    pushad
}
macro restore_ring3_context
{
    popad
}
 
; simply return control to interrupted process
unknown_interrupt:
     iret
 
macro exc_wo_code [num]
{
  forward
  e#num :
      save_ring3_context
      mov bl, num
      jmp exc_c
}
 
macro exc_w_code [num]
{
  forward
  e#num :
      add esp, 4
      save_ring3_context
      mov bl, num
      jmp exc_c
}
 
exc_wo_code 0, 1, 2, 3, 4, 5, 6, 9, 15, 18
exc_w_code 8, 10, 11, 12, 13, 14, 17
 
exc_c:
        mov   ax, app_data  ;èñêëþ÷åíèå
        mov   ds, ax        ;çàãðóçèì ïðàâèëüíûå çíà÷åíè
        mov   es, ax        ;â ðåãèñòðû
 
; test if debugging
        cli
        mov   eax, [current_slot]
        mov   eax, [eax+APPDATA.debugger_slot]
        test  eax, eax
        jnz   .debug
        sti
; not debuggee => say error and terminate
        add   esp, 0x20  ;28h
        movzx eax, bl
        mov   [error_interrupt], eax
        call  show_error_parameters
 
        mov   edx, [TASK_BASE]
        mov   [edx + TASKDATA.state], byte 4
 
        jmp   change_task
 
.debug:
; we are debugged process, notify debugger and suspend ourself
; eax=debugger PID
        cld
        movzx ecx, bl
        push  ecx
        mov   ecx, [TASK_BASE]
        push  dword [ecx+TASKDATA.pid]    ; PID of current process
        push  12
        pop   ecx
        push  1        ; 1=exception
        call  debugger_notify
        pop   ecx
        pop   ecx
        pop   ecx
        mov   edx, [TASK_BASE]
        mov   byte [edx+TASKDATA.state], 1        ; suspended
        call  change_task
        restore_ring3_context
        iretd
 
writehex:
      pusha
 
      mov  edi, [write_error_to]
      mov  esi, 8
    @@:
      mov  ecx, eax
      and  ecx, 0xf
 
      mov  cl,[ecx+hexletters]
      mov  [edi],cl
      dec  edi
 
      shr  eax,4
      dec  esi
      jnz  @b
 
      popa
      ret
 
iglobal
  hexletters  db '0123456789ABCDEF'
 
  error_interrupt         dd  -1
 
  process_error  db 'K : Process - forced terminate INT: 00000000',13,10,0
  process_pid    db 'K : Process - forced terminate PID: 00000000',13,10,0
  process_eip    db 'K : Process - forced terminate EIP: 00000000',13,10,0
  system_error   db 'K : Kernel error',13,10,0
endg
 
uglobal
  write_error_to  dd  0x0
endg
 
show_error_parameters:
 
        mov    [write_error_to],process_pid+43
        mov    eax,[CURRENT_TASK]
        shl    eax, 5
        mov    eax,[CURRENT_TASK+TASKDATA.pid+eax]
        call   writehex
 
        mov    [write_error_to],process_error+43
        mov    eax,[error_interrupt]
        call   writehex
 
        cmp    dword [esp+4+4], os_code ; CS
        jnz    @f
        mov    esi,system_error
        call   sys_msg_board_str
      @@:
        mov    eax, [esp+4] ; EIP
 
        mov    [write_error_to],process_eip+43
        call   writehex
 
        mov    esi,process_error
        call   sys_msg_board_str
 
        mov    esi,process_pid
        call   sys_msg_board_str
 
        mov    esi,process_eip
        call   sys_msg_board_str
 
        ret
 
 
 
; irq1  ->  hid/keyboard.inc
 
 
macro irqh [num]
{
  forward
  p_irq#num :
     save_ring3_context
     mov   edi, num
     jmp   irq_c
}
 
irqh 2,5,7,8,9,10,11
 
irq_c:
     mov   ax, app_data  ;os_data
     mov   ds, ax
     mov   es, ax
     call  irqhandler
     restore_ring3_context
     iret
 
p_irq6:
     save_ring3_context
     mov   ax, app_data  ;os_data
     mov   ds, ax
     mov   es, ax
     call  fdc_irq
     call  ready_for_next_irq
     restore_ring3_context
     iret
 
p_irq3:
     save_ring3_context
     mov   ax, app_data  ;os_data
     mov   ds, ax
     mov   es, ax
     cmp   [com2_mouse_detected],0
     je    old_irq3_handler
     call  check_mouse_data_com2
     jmp   p_irq3_1
 old_irq3_handler:
     mov   edi,3
     call  irqhandler
  p_irq3_1:
     restore_ring3_context
     iret
 
p_irq4:
     save_ring3_context
     mov   ax, app_data  ;os_data
     mov   ds, ax
     mov   es, ax
     cmp   [com1_mouse_detected],0
     je    old_irq4_handler
     call  check_mouse_data_com1
     jmp   p_irq4_1
 old_irq4_handler:
     mov   edi,4
     call  irqhandler
  p_irq4_1:
     restore_ring3_context
     iret
 
p_irq12:
     save_ring3_context
     mov   ax, app_data  ;os_data
     mov   ds, ax
     mov   es, ax
     call  check_mouse_data_ps2
     restore_ring3_context
     iret
 
p_irq14:
        save_ring3_context
        mov     ax, app_data  ;os_data
        mov     ds, ax
        mov     es, ax
        call    [irq14_func]
        call    ready_for_next_irq_1
        restore_ring3_context
        iret
p_irq15:
        save_ring3_context
        mov     ax, app_data  ;os_data
        mov     ds, ax
        mov     es, ax
        call    [irq15_func]
        call    ready_for_next_irq_1
        restore_ring3_context
        iret
 
ready_for_next_irq:
     mov    [check_idle_semaphore],5
     mov   al, 0x20
     out   0x20, al
     ret
 
ready_for_next_irq_1:
     mov    [check_idle_semaphore],5
     mov   al, 0x20
     out    0xa0,al
     out   0x20, al
     ret
 
irqD:
     save_ring3_context
     mov   ax, app_data  ;os_data
     mov   ds, ax
     mov   es, ax
 
     mov   dx,0xf0
     mov   al,0
     out   dx,al
 
     mov   dx,0xa0
     mov   al,0x20
     out   dx,al
     mov   dx,0x20
     out   dx,al
 
     restore_ring3_context
 
     iret
 
 
irqhandler:
 
     push   edi
 
     mov    esi,edi          ; 1
     shl    esi,6            ; 1
     add    esi,irq00read    ; 1
     shl    edi,12           ; 1
     add    edi,IRQ_SAVE
     mov    ecx,16
 
     mov    [check_idle_semaphore],5
 
   irqnewread:
     dec    ecx
     js     irqover
 
     mov    dx,[esi]         ; 2+
 
     cmp    dx,0             ; 1
     jz     irqover
     cmp    [esi+3],byte 1   ; 2     ; byte read
     jne    noirqbyte        ; 4-11
 
     in     al,dx
 
     mov    edx,[edi]
     cmp    edx,4000
     je     irqfull
     mov    ebx,edi
     add    ebx,0x10
     add    ebx,edx
     mov    [ebx],al
     inc    edx
     mov    [edi],edx
 
     add    esi,4
     jmp    irqnewread
 
   noirqbyte:
 
 
     cmp    [esi+3],byte 2     ; word read
     jne    noirqword
 
     in     ax,dx
 
     mov    edx,[edi]
     cmp    edx,4000
     je     irqfull
     mov    ebx,edi
     add    ebx,0x10
     add    ebx,edx
     mov    [ebx],ax
     add    edx,2
     mov    [edi],edx
     add    esi,4
     jmp    irqnewread
 
   noirqword:
   irqfull:
   irqover:
 
     mov    al,0x20            ; ready for next irq
     out    0x20,al
 
     pop    ebx
     cmp    ebx,7
     jbe    noa0
     out    0xa0,al
   noa0:
 
     ret
 
 
 
set_application_table_status:
        push eax
 
        mov  eax,[CURRENT_TASK]
        shl  eax, 5
        add  eax,CURRENT_TASK+TASKDATA.pid
        mov  eax,[eax]
 
        mov  [application_table_status],eax
 
        pop  eax
 
        ret
 
 
clear_application_table_status:
        push eax
 
        mov  eax,[CURRENT_TASK]
        shl  eax, 5
        add  eax,CURRENT_TASK+TASKDATA.pid
        mov  eax,[eax]
 
        cmp  eax,[application_table_status]
        jne  apptsl1
        mov  [application_table_status],0
      apptsl1:
 
        pop  eax
 
        ret
 
sys_resize_app_memory:
        ; eax = 1 - resize
        ;     ebx = new amount of memory
 
        cmp    eax,1
        jne    .no_application_mem_resize
 
        stdcall new_mem_resize, ebx
        mov [esp+36], eax
        ret
 
.no_application_mem_resize:
        ret
 
sys_threads:
 
; eax=1 create thread
;
;   ebx=thread start
;   ecx=thread stack value
;
; on return : eax = pid
jmp new_sys_threads
 
iglobal
  process_terminating   db 'K : Process - terminating',13,10,0
  process_terminated    db 'K : Process - done',13,10,0
  msg_obj_destroy       db 'K : destroy app object',13,10,0
endg
 
; param
;  esi= slot
 
terminate: ; terminate application
 
           .slot equ esp   ;locals
 
           push   esi      ;save .slot
 
           shl esi, 8
           cmp [SLOT_BASE+esi+APPDATA.dir_table], 0
           jne @F
           add esp, 4
           ret
@@:
           mov    esi,process_terminating
           call   sys_msg_board_str
@@:
           cli
           cmp   [application_table_status],0
           je    term9
           sti
           call  change_task
           jmp   @b
term9:
           call  set_application_table_status
 
           mov esi, [.slot]
           shl esi,8
           add esi, SLOT_BASE+APP_OBJ_OFFSET
@@:
           mov eax, [esi+APPOBJ.fd]
           test eax, eax
           jz @F
 
           cmp eax, esi
           je @F
 
           push esi
           call [eax+APPOBJ.destroy]
           mov  esi, msg_obj_destroy
           call sys_msg_board_str
           pop esi
           jmp @B
@@:
           mov eax, [.slot]
           shl eax, 8
           mov eax,[SLOT_BASE+eax+APPDATA.dir_table]
           stdcall destroy_app_space, eax
 
           mov esi, [.slot]
           cmp [fpu_owner],esi   ; if user fpu last -> fpu user = 1
           jne @F
 
           mov [fpu_owner],1
           mov eax, [256+SLOT_BASE+APPDATA.fpu_state]
           clts
           bt [cpu_caps], CAPS_SSE
           jnc .no_SSE
           fxrstor [eax]
           jmp @F
.no_SSE:
           fnclex
           frstor [eax]
@@:
 
    mov   [KEY_COUNT],byte 0           ; empty keyboard buffer
    mov   [BTN_COUNT],byte 0           ; empty button buffer
 
 
; remove defined hotkeys
        mov     eax, hotkey_list
.loop:
        cmp     [eax+8], esi
        jnz     .cont
        mov     ecx, [eax]
        jecxz   @f
        push    dword [eax+12]
        pop     dword [ecx+12]
@@:
        mov     ecx, [eax+12]
        push    dword [eax]
        pop     dword [ecx]
        xor     ecx, ecx
        mov     [eax], ecx
        mov     [eax+4], ecx
        mov     [eax+8], ecx
        mov     [eax+12], ecx
.cont:
        add     eax, 16
        cmp     eax, hotkey_list+256*16
        jb      .loop
; remove hotkeys in buffer
        mov     eax, hotkey_buffer
.loop2:
        cmp     [eax], esi
        jnz     .cont2
        and     dword [eax+4], 0
        and     dword [eax], 0
.cont2:
        add     eax, 8
        cmp     eax, hotkey_buffer+120*8
        jb      .loop2
 
    mov   ecx,esi                 ; remove buttons
  bnewba2:
    mov   edi,[BTN_ADDR]
    mov   eax,edi
    cld
    movzx ebx,word [edi]
    inc   bx
  bnewba:
    dec   bx
    jz    bnmba
    add   eax,0x10
    cmp   cx,[eax]
    jnz   bnewba
    pusha
    mov   ecx,ebx
    inc   ecx
    shl   ecx,4
    mov   ebx,eax
    add   eax,0x10
    call  memmove
    dec   dword [edi]
    popa
    jmp   bnewba2
  bnmba:
 
    pusha     ; save window coordinates for window restoring
    cld
    shl   esi,5
    add   esi,window_data
    mov   eax,[esi+WDATA.box.left]
    mov   [dlx],eax
    add   eax,[esi+WDATA.box.width]
    mov   [dlxe],eax
    mov   eax,[esi+WDATA.box.top]
    mov   [dly],eax
    add   eax,[esi+WDATA.box.height]
    mov   [dlye],eax
 
    xor   eax, eax
    mov   [esi+WDATA.box.left],eax
    mov   [esi+WDATA.box.width],eax
    mov   [esi+WDATA.box.top],eax
    mov   [esi+WDATA.box.height],eax
    mov   [esi+WDATA.cl_workarea],eax
    mov   [esi+WDATA.cl_titlebar],eax
    mov   [esi+WDATA.cl_frames],eax
    mov   dword [esi+WDATA.reserved],eax ; clear all flags: wstate, redraw, wdrawn
    lea   edi, [esi-window_data+draw_data]
    mov   ecx,32/4
    rep   stosd
    popa
 
; debuggee test
    pushad
    mov  edi, esi
    shl  edi, 5
    mov  eax, [SLOT_BASE+edi*8+APPDATA.debugger_slot]
    test eax, eax
    jz   .nodebug
    push 8
    pop  ecx
    push dword [CURRENT_TASK+edi+TASKDATA.pid]   ; PID
    push 2
    call debugger_notify
    pop  ecx
    pop  ecx
.nodebug:
    popad
 
           mov ebx, [.slot]
           shl ebx, 8
           mov ebx,[SLOT_BASE+ebx+APPDATA.pl0_stack]
 
           stdcall kernel_free, ebx
 
           mov edi, [.slot]
           shl edi,8
           add edi,SLOT_BASE
 
           mov eax, [edi+APPDATA.io_map]
           cmp eax, (tss._io_map_0-OS_BASE+PG_MAP)
           je @F
           call free_page
@@:
           mov eax, [edi+APPDATA.io_map+4]
           cmp eax, (tss._io_map_0-OS_BASE+PG_MAP)
           je @F
           call free_page
@@:
           mov eax, 0x20202020
           stosd
           stosd
           stosd
           mov ecx,244/4
           xor eax, eax
           rep stosd
 
  ; activate window
        movzx  eax, word [WIN_STACK + esi*2]
        cmp    eax, [TASK_COUNT]
        jne    .dont_activate
        pushad
 .check_next_window:
        dec    eax
        cmp    eax, 1
        jbe    .nothing_to_activate
        lea    esi, [WIN_POS+eax*2]
        movzx  edi, word [esi]               ; edi = process
        shl    edi, 5
        cmp    [CURRENT_TASK + edi + TASKDATA.state], byte 9  ; skip dead slots
        je     .check_next_window
        add    edi, window_data
; \begin{diamond}[19.09.2006]
; skip minimized windows
        test   [edi + WDATA.fl_wstate], WSTATE_MINIMIZED
        jnz    .check_next_window
; \end{diamond}
        call   waredraw
 .nothing_to_activate:
        popad
 .dont_activate:
 
        push    esi     ; remove hd1 & cd & flp reservation
        shl     esi, 5
        mov     esi, [esi+CURRENT_TASK+TASKDATA.pid]
        cmp     [hd1_status], esi
        jnz     @f
        call    free_hd_channel
        mov     [hd1_status], 0
@@:
        cmp     [cd_status], esi
        jnz     @f
        call    free_cd_channel
        mov     [cd_status], 0
@@:
        cmp     [flp_status], esi
        jnz     @f
        mov     [flp_status], 0
@@:
        pop     esi
 
    pusha ; remove all irq reservations
    mov   eax,esi
    shl   eax, 5
    mov   eax,[eax+CURRENT_TASK+TASKDATA.pid]
    mov   edi,irq_owner
    mov   ecx,16
  newirqfree:
    scasd
    jne   nofreeirq
    mov   [edi-4],dword 0
  nofreeirq:
    loop   newirqfree
    popa
 
    pusha                     ; remove all port reservations
    mov   edx,esi
    shl   edx, 5
    add   edx,CURRENT_TASK
    mov   edx,[edx+TASKDATA.pid]
 
  rmpr0:
 
    mov   esi,[RESERVED_PORTS]
 
    cmp   esi,0
    je    rmpr9
 
  rmpr3:
 
    mov   edi,esi
    shl   edi,4
    add   edi,RESERVED_PORTS
 
    cmp   edx,[edi]
    je    rmpr4
 
    dec   esi
    jnz   rmpr3
 
    jmp   rmpr9
 
  rmpr4:
 
    mov   ecx,256
    sub   ecx,esi
    shl   ecx,4
 
    mov   esi,edi
    add   esi,16
    cld
    rep   movsb
 
    dec   dword [RESERVED_PORTS]
 
    jmp   rmpr0
 
  rmpr9:
 
    popa
    mov  edi,esi         ; do not run this process slot
    shl  edi, 5
    mov  [edi+CURRENT_TASK + TASKDATA.state],byte 9
; debugger test - terminate all debuggees
    mov  eax, 2
    mov  ecx, SLOT_BASE+2*0x100+APPDATA.debugger_slot
.xd0:
    cmp  eax, [TASK_COUNT]
    ja   .xd1
    cmp  dword [ecx], esi
    jnz  @f
    and  dword [ecx], 0
    pushad
    xchg eax, ebx
    mov  eax, 2
    call sys_system
    popad
@@:
    inc  eax
    add  ecx, 0x100
    jmp  .xd0
.xd1:
;    call  systest
    sti  ; .. and life goes on
 
    mov   eax, [dlx]
    mov   ebx, [dly]
    mov   ecx, [dlxe]
    mov   edx, [dlye]
    call  calculatescreen
    xor   eax, eax
    xor   esi, esi
    call  redrawscreen
 
    mov   [MOUSE_BACKGROUND],byte 0  ; no mouse background
    mov   [DONT_DRAW_MOUSE],byte 0  ; draw mouse
 
    mov   [application_table_status],0
    mov   esi,process_terminated
    call  sys_msg_board_str
    add esp, 4
    ret
restore .slot
 
iglobal
  boot_sched_1    db   'Building gdt tss pointer',0
  boot_sched_2    db   'Building IDT table',0
endg
 
 
build_scheduler:
 
        mov    esi,boot_sched_1
        call   boot_log
  ;      call   build_process_gdt_tss_pointer
 
  ;      mov    esi,boot_sched_2
  ;      call   boot_log
 
        ret

Rev 430	Rev 432
1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
2	;; ;;	2	;; ;;
3	;; MenuetOS process management, protected ring3 ;;	3	;; MenuetOS process management, protected ring3 ;;
4	;; ;;	4	;; ;;
5	;; Distributed under GPL. See file COPYING for details. ;;	5	;; Distributed under GPL. See file COPYING for details. ;;
6	;; Copyright 2003 Ville Turjanmaa ;;	6	;; Copyright 2003 Ville Turjanmaa ;;
7	;; ;;	7	;; ;;
8	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	8	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
9		9
10	align 4	10	align 4
11	idtreg:	11	idtreg:
12	dw 8*0x41-1	12	dw 8*0x41-1
13	dd idts+8	13	dd idts+8
14		14
15	build_interrupt_table:	15	build_interrupt_table:
16		16
17	mov edi, idts+8	17	mov edi, idts+8
18	mov esi, sys_int	18	mov esi, sys_int
19	mov ecx, 0x40	19	mov ecx, 0x40
20	@@:	20	@@:
21	mov eax, [esi]	21	mov eax, [esi]
22	mov [edi], ax ; lower part of offset	22	mov [edi], ax ; lower part of offset
23	mov [edi+2], word os_code ; segment selector	23	mov [edi+2], word os_code ; segment selector
24	shr eax, 16	24	shr eax, 16
25	mov [edi+4], word 10001110b shl 8 ; interrupt descriptor	25	mov [edi+4], word 10001110b shl 8 ; interrupt descriptor
26	mov [edi+6], ax	26	mov [edi+6], ax
27	add esi, 4	27	add esi, 4
28	add edi, 8	28	add edi, 8
29	dec ecx	29	dec ecx
30	jnz @b	30	jnz @b
31		31
32	;mov edi,8*0x40+idts+8	32	;mov edi,8*0x40+idts+8
33	mov [edi + 0], word (i40 and ((1 shl 16)-1))	33	mov [edi + 0], word (i40 and ((1 shl 16)-1))
34	mov [edi + 2], word os_code	34	mov [edi + 2], word os_code
35	mov [edi + 4], word 11101110b*256	35	mov [edi + 4], word 11101110b*256
36	mov [edi + 6], word (i40 shr 16)	36	mov [edi + 6], word (i40 shr 16)
37		37
38	ret	38	ret
39		39
40	iglobal	40	iglobal
41	sys_int:	41	sys_int:
42	dd e0,debug_exc,e2,e3	42	dd e0,debug_exc,e2,e3
43	dd e4,e5,e6,e7	43	dd e4,e5,e6,e7
44	dd e8,e9,e10,e11	44	dd e8,e9,e10,e11
45	dd e12,e13,page_fault_handler,e15	45	dd e12,e13,page_fault_handler,e15
46		46
47	dd except_16, e17,e18, except_19	47	dd except_16, e17,e18, except_19
48	times 12 dd unknown_interrupt	48	times 12 dd unknown_interrupt
49		49
50	dd irq0 , irq_serv.irq_1, p_irq2 , p_irq3 ;irq_serv.irq_3	50	dd irq0 , irq_serv.irq_1, p_irq2 , p_irq3 ;irq_serv.irq_3
51	dd irq_serv.irq_4 ,irq_serv.irq_5,p_irq6,irq_serv.irq_7	51	dd irq_serv.irq_4 ,irq_serv.irq_5,p_irq6,irq_serv.irq_7
52	dd irq_serv.irq_8, irq_serv.irq_9, irq_serv.irq_10	52	dd irq_serv.irq_8, irq_serv.irq_9, irq_serv.irq_10
53	dd irq_serv.irq_11,p_irq12,irqD ,p_irq14,p_irq15	53	dd irq_serv.irq_11,p_irq12,irqD ,p_irq14,p_irq15
54		54
55	times 16 dd unknown_interrupt	55	times 16 dd unknown_interrupt
56		56
57	dd i40	57	dd i40
58	endg	58	endg
59		59
60	macro save_ring3_context	60	macro save_ring3_context
61	{	61	{
62	pushad	62	pushad
63	}	63	}
64	macro restore_ring3_context	64	macro restore_ring3_context
65	{	65	{
66	popad	66	popad
67	}	67	}
68		68
69	; simply return control to interrupted process	69	; simply return control to interrupted process
70	unknown_interrupt:	70	unknown_interrupt:
71	iret	71	iret
72		72
73	macro exc_wo_code [num]	73	macro exc_wo_code [num]
74	{	74	{
75	forward	75	forward
76	e#num :	76	e#num :
77	save_ring3_context	77	save_ring3_context
78	mov bl, num	78	mov bl, num
79	jmp exc_c	79	jmp exc_c
80	}	80	}
81		81
82	macro exc_w_code [num]	82	macro exc_w_code [num]
83	{	83	{
84	forward	84	forward
85	e#num :	85	e#num :
86	add esp, 4	86	add esp, 4
87	save_ring3_context	87	save_ring3_context
88	mov bl, num	88	mov bl, num
89	jmp exc_c	89	jmp exc_c
90	}	90	}
91		91
92	exc_wo_code 0, 1, 2, 3, 4, 5, 6, 9, 15, 18	92	exc_wo_code 0, 1, 2, 3, 4, 5, 6, 9, 15, 18
93	exc_w_code 8, 10, 11, 12, 13, 14, 17	93	exc_w_code 8, 10, 11, 12, 13, 14, 17
94		94
95	exc_c:	95	exc_c:
96	mov ax, app_data ;èñêëþ÷åíèå	96	mov ax, app_data ;èñêëþ÷åíèå
97	mov ds, ax ;çàãðóçèì ïðàâèëüíûå çíà÷åíè	97	mov ds, ax ;çàãðóçèì ïðàâèëüíûå çíà÷åíè
98	mov es, ax ;â ðåãèñòðû	98	mov es, ax ;â ðåãèñòðû
99		99
100	; test if debugging	100	; test if debugging
101	cli	101	cli
102	mov eax, [current_slot]	102	mov eax, [current_slot]
103	mov eax, [eax+APPDATA.debugger_slot]	103	mov eax, [eax+APPDATA.debugger_slot]
104	test eax, eax	104	test eax, eax
105	jnz .debug	105	jnz .debug
106	sti	106	sti
107	; not debuggee => say error and terminate	107	; not debuggee => say error and terminate
108	add esp, 0x20 ;28h	108	add esp, 0x20 ;28h
109	movzx eax, bl	109	movzx eax, bl
110	mov [error_interrupt], eax	110	mov [error_interrupt], eax
111	call show_error_parameters	111	call show_error_parameters
112		112
113	mov edx, [TASK_BASE]	113	mov edx, [TASK_BASE]
114	mov [edx + TASKDATA.state], byte 4	114	mov [edx + TASKDATA.state], byte 4
115		115
116	jmp change_task	116	jmp change_task
117		117
118	.debug:	118	.debug:
119	; we are debugged process, notify debugger and suspend ourself	119	; we are debugged process, notify debugger and suspend ourself
120	; eax=debugger PID	120	; eax=debugger PID
121	cld	121	cld
122	movzx ecx, bl	122	movzx ecx, bl
123	push ecx	123	push ecx
124	mov ecx, [TASK_BASE]	124	mov ecx, [TASK_BASE]
125	push dword [ecx+TASKDATA.pid] ; PID of current process	125	push dword [ecx+TASKDATA.pid] ; PID of current process
126	push 12	126	push 12
127	pop ecx	127	pop ecx
128	push 1 ; 1=exception	128	push 1 ; 1=exception
129	call debugger_notify	129	call debugger_notify
130	pop ecx	130	pop ecx
131	pop ecx	131	pop ecx
132	pop ecx	132	pop ecx
133	mov edx, [TASK_BASE]	133	mov edx, [TASK_BASE]
134	mov byte [edx+TASKDATA.state], 1 ; suspended	134	mov byte [edx+TASKDATA.state], 1 ; suspended
135	call change_task	135	call change_task
136	restore_ring3_context	136	restore_ring3_context
137	iretd	137	iretd
138		138
139	writehex:	139	writehex:
140	pusha	140	pusha
141		141
142	mov edi, [write_error_to]	142	mov edi, [write_error_to]
143	mov esi, 8	143	mov esi, 8
144	@@:	144	@@:
145	mov ecx, eax	145	mov ecx, eax
146	and ecx, 0xf	146	and ecx, 0xf
147		147
148	mov cl,[ecx+hexletters]	148	mov cl,[ecx+hexletters]
149	mov [edi],cl	149	mov [edi],cl
150	dec edi	150	dec edi
151		151
152	shr eax,4	152	shr eax,4
153	dec esi	153	dec esi
154	jnz @b	154	jnz @b
155		155
156	popa	156	popa
157	ret	157	ret
158		158
159	iglobal	159	iglobal
160	hexletters db '0123456789ABCDEF'	160	hexletters db '0123456789ABCDEF'
161		161
162	error_interrupt dd -1	162	error_interrupt dd -1
163		163
164	process_error db 'K : Process - forced terminate INT: 00000000',13,10,0	164	process_error db 'K : Process - forced terminate INT: 00000000',13,10,0
165	process_pid db 'K : Process - forced terminate PID: 00000000',13,10,0	165	process_pid db 'K : Process - forced terminate PID: 00000000',13,10,0
166	process_eip db 'K : Process - forced terminate EIP: 00000000',13,10,0	166	process_eip db 'K : Process - forced terminate EIP: 00000000',13,10,0
167	system_error db 'K : Kernel error',13,10,0	167	system_error db 'K : Kernel error',13,10,0
168	endg	168	endg
169		169
170	uglobal	170	uglobal
171	write_error_to dd 0x0	171	write_error_to dd 0x0
172	endg	172	endg
173		173
174	show_error_parameters:	174	show_error_parameters:
175		175
176	mov [write_error_to],process_pid+43	176	mov [write_error_to],process_pid+43
177	mov eax,[CURRENT_TASK]	177	mov eax,[CURRENT_TASK]
178	shl eax, 5	178	shl eax, 5
179	mov eax,[CURRENT_TASK+TASKDATA.pid+eax]	179	mov eax,[CURRENT_TASK+TASKDATA.pid+eax]
180	call writehex	180	call writehex
181		181
182	mov [write_error_to],process_error+43	182	mov [write_error_to],process_error+43
183	mov eax,[error_interrupt]	183	mov eax,[error_interrupt]
184	call writehex	184	call writehex
185		185
186	cmp dword [esp+4+4], os_code ; CS	186	cmp dword [esp+4+4], os_code ; CS
187	jnz @f	187	jnz @f
188	mov esi,system_error	188	mov esi,system_error
189	call sys_msg_board_str	189	call sys_msg_board_str
190	@@:	190	@@:
191	mov eax, [esp+4] ; EIP	191	mov eax, [esp+4] ; EIP
192		192
193	mov [write_error_to],process_eip+43	193	mov [write_error_to],process_eip+43
194	call writehex	194	call writehex
195		195
196	mov esi,process_error	196	mov esi,process_error
197	call sys_msg_board_str	197	call sys_msg_board_str
198		198
199	mov esi,process_pid	199	mov esi,process_pid
200	call sys_msg_board_str	200	call sys_msg_board_str
201		201
202	mov esi,process_eip	202	mov esi,process_eip
203	call sys_msg_board_str	203	call sys_msg_board_str
204		204
205	ret	205	ret
206		206
207		207
208		208
209	; irq1 -> hid/keyboard.inc	209	; irq1 -> hid/keyboard.inc
210		210
211		211
212	macro irqh [num]	212	macro irqh [num]
213	{	213	{
214	forward	214	forward
215	p_irq#num :	215	p_irq#num :
216	save_ring3_context	216	save_ring3_context
217	mov edi, num	217	mov edi, num
218	jmp irq_c	218	jmp irq_c
219	}	219	}
220		220
221	irqh 2,5,7,8,9,10,11	221	irqh 2,5,7,8,9,10,11
222		222
223	irq_c:	223	irq_c:
224	mov ax, app_data ;os_data	224	mov ax, app_data ;os_data
225	mov ds, ax	225	mov ds, ax
226	mov es, ax	226	mov es, ax
227	call irqhandler	227	call irqhandler
228	restore_ring3_context	228	restore_ring3_context
229	iret	229	iret
230		230
231	p_irq6:	231	p_irq6:
232	save_ring3_context	232	save_ring3_context
233	mov ax, app_data ;os_data	233	mov ax, app_data ;os_data
234	mov ds, ax	234	mov ds, ax
235	mov es, ax	235	mov es, ax
236	call fdc_irq	236	call fdc_irq
237	call ready_for_next_irq	237	call ready_for_next_irq
238	restore_ring3_context	238	restore_ring3_context
239	iret	239	iret
240		240
241	p_irq3:	241	p_irq3:
242	save_ring3_context	242	save_ring3_context
243	mov ax, app_data ;os_data	243	mov ax, app_data ;os_data
244	mov ds, ax	244	mov ds, ax
245	mov es, ax	245	mov es, ax
246	cmp [com2_mouse_detected],0	246	cmp [com2_mouse_detected],0
247	je old_irq3_handler	247	je old_irq3_handler
248	call check_mouse_data_com2	248	call check_mouse_data_com2
249	jmp p_irq3_1	249	jmp p_irq3_1
250	old_irq3_handler:	250	old_irq3_handler:
251	mov edi,3	251	mov edi,3
252	call irqhandler	252	call irqhandler
253	p_irq3_1:	253	p_irq3_1:
254	restore_ring3_context	254	restore_ring3_context
255	iret	255	iret
256		256
257	p_irq4:	257	p_irq4:
258	save_ring3_context	258	save_ring3_context
259	mov ax, app_data ;os_data	259	mov ax, app_data ;os_data
260	mov ds, ax	260	mov ds, ax
261	mov es, ax	261	mov es, ax
262	cmp [com1_mouse_detected],0	262	cmp [com1_mouse_detected],0
263	je old_irq4_handler	263	je old_irq4_handler
264	call check_mouse_data_com1	264	call check_mouse_data_com1
265	jmp p_irq4_1	265	jmp p_irq4_1
266	old_irq4_handler:	266	old_irq4_handler:
267	mov edi,4	267	mov edi,4
268	call irqhandler	268	call irqhandler
269	p_irq4_1:	269	p_irq4_1:
270	restore_ring3_context	270	restore_ring3_context
271	iret	271	iret
272		272
273	p_irq12:	273	p_irq12:
274	save_ring3_context	274	save_ring3_context
275	mov ax, app_data ;os_data	275	mov ax, app_data ;os_data
276	mov ds, ax	276	mov ds, ax
277	mov es, ax	277	mov es, ax
278	call check_mouse_data_ps2	278	call check_mouse_data_ps2
279	restore_ring3_context	279	restore_ring3_context
280	iret	280	iret
281		281
282	p_irq14:	282	p_irq14:
283	save_ring3_context	283	save_ring3_context
284	mov ax, app_data ;os_data	284	mov ax, app_data ;os_data
285	mov ds, ax	285	mov ds, ax
286	mov es, ax	286	mov es, ax
287	call [irq14_func]	287	call [irq14_func]
288	call ready_for_next_irq_1	288	call ready_for_next_irq_1
289	restore_ring3_context	289	restore_ring3_context
290	iret	290	iret
291	p_irq15:	291	p_irq15:
292	save_ring3_context	292	save_ring3_context
293	mov ax, app_data ;os_data	293	mov ax, app_data ;os_data
294	mov ds, ax	294	mov ds, ax
295	mov es, ax	295	mov es, ax
296	call [irq15_func]	296	call [irq15_func]
297	call ready_for_next_irq_1	297	call ready_for_next_irq_1
298	restore_ring3_context	298	restore_ring3_context
299	iret	299	iret
300		300
301	ready_for_next_irq:	301	ready_for_next_irq:
302	mov [check_idle_semaphore],5	302	mov [check_idle_semaphore],5
303	mov al, 0x20	303	mov al, 0x20
304	out 0x20, al	304	out 0x20, al
305	ret	305	ret
306		306
307	ready_for_next_irq_1:	307	ready_for_next_irq_1:
308	mov [check_idle_semaphore],5	308	mov [check_idle_semaphore],5
309	mov al, 0x20	309	mov al, 0x20
310	out 0xa0,al	310	out 0xa0,al
311	out 0x20, al	311	out 0x20, al
312	ret	312	ret
313		313
314	irqD:	314	irqD:
315	save_ring3_context	315	save_ring3_context
316	mov ax, app_data ;os_data	316	mov ax, app_data ;os_data
317	mov ds, ax	317	mov ds, ax
318	mov es, ax	318	mov es, ax
319		319
320	mov dx,0xf0	320	mov dx,0xf0
321	mov al,0	321	mov al,0
322	out dx,al	322	out dx,al
323		323
324	mov dx,0xa0	324	mov dx,0xa0
325	mov al,0x20	325	mov al,0x20
326	out dx,al	326	out dx,al
327	mov dx,0x20	327	mov dx,0x20
328	out dx,al	328	out dx,al
329		329
330	restore_ring3_context	330	restore_ring3_context
331		331
332	iret	332	iret
333		333
334		334
335	irqhandler:	335	irqhandler:
336		336
337	push edi	337	push edi
338		338
339	mov esi,edi ; 1	339	mov esi,edi ; 1
340	shl esi,6 ; 1	340	shl esi,6 ; 1
341	add esi,irq00read ; 1	341	add esi,irq00read ; 1
342	shl edi,12 ; 1	342	shl edi,12 ; 1
343	add edi,IRQ_SAVE	343	add edi,IRQ_SAVE
344	mov ecx,16	344	mov ecx,16
345		345
346	mov [check_idle_semaphore],5	346	mov [check_idle_semaphore],5
347		347
348	irqnewread:	348	irqnewread:
349	dec ecx	349	dec ecx
350	js irqover	350	js irqover
351		351
352	mov dx,[esi] ; 2+	352	mov dx,[esi] ; 2+
353		353
354	cmp dx,0 ; 1	354	cmp dx,0 ; 1
355	jz irqover	355	jz irqover
356	cmp [esi+3],byte 1 ; 2 ; byte read	356	cmp [esi+3],byte 1 ; 2 ; byte read
357	jne noirqbyte ; 4-11	357	jne noirqbyte ; 4-11
358		358
359	in al,dx	359	in al,dx
360		360
361	mov edx,[edi]	361	mov edx,[edi]
362	cmp edx,4000	362	cmp edx,4000
363	je irqfull	363	je irqfull
364	mov ebx,edi	364	mov ebx,edi
365	add ebx,0x10	365	add ebx,0x10
366	add ebx,edx	366	add ebx,edx
367	mov [ebx],al	367	mov [ebx],al
368	inc edx	368	inc edx
369	mov [edi],edx	369	mov [edi],edx
370		370
371	add esi,4	371	add esi,4
372	jmp irqnewread	372	jmp irqnewread
373		373
374	noirqbyte:	374	noirqbyte:
375		375
376		376
377	cmp [esi+3],byte 2 ; word read	377	cmp [esi+3],byte 2 ; word read
378	jne noirqword	378	jne noirqword
379		379
380	in ax,dx	380	in ax,dx
381		381
382	mov edx,[edi]	382	mov edx,[edi]
383	cmp edx,4000	383	cmp edx,4000
384	je irqfull	384	je irqfull
385	mov ebx,edi	385	mov ebx,edi
386	add ebx,0x10	386	add ebx,0x10
387	add ebx,edx	387	add ebx,edx
388	mov [ebx],ax	388	mov [ebx],ax
389	add edx,2	389	add edx,2
390	mov [edi],edx	390	mov [edi],edx
391	add esi,4	391	add esi,4
392	jmp irqnewread	392	jmp irqnewread
393		393
394	noirqword:	394	noirqword:
395	irqfull:	395	irqfull:
396	irqover:	396	irqover:
397		397
398	mov al,0x20 ; ready for next irq	398	mov al,0x20 ; ready for next irq
399	out 0x20,al	399	out 0x20,al
400		400
401	pop ebx	401	pop ebx
402	cmp ebx,7	402	cmp ebx,7
403	jbe noa0	403	jbe noa0
404	out 0xa0,al	404	out 0xa0,al
405	noa0:	405	noa0:
406		406
407	ret	407	ret
408		408
409		409
410		410
411	set_application_table_status:	411	set_application_table_status:
412	push eax	412	push eax
413		413
414	mov eax,[CURRENT_TASK]	414	mov eax,[CURRENT_TASK]
415	shl eax, 5	415	shl eax, 5
416	add eax,CURRENT_TASK+TASKDATA.pid	416	add eax,CURRENT_TASK+TASKDATA.pid
417	mov eax,[eax]	417	mov eax,[eax]
418		418
419	mov [application_table_status],eax	419	mov [application_table_status],eax
420		420
421	pop eax	421	pop eax
422		422
423	ret	423	ret
424		424
425		425
426	clear_application_table_status:	426	clear_application_table_status:
427	push eax	427	push eax
428		428
429	mov eax,[CURRENT_TASK]	429	mov eax,[CURRENT_TASK]
430	shl eax, 5	430	shl eax, 5
431	add eax,CURRENT_TASK+TASKDATA.pid	431	add eax,CURRENT_TASK+TASKDATA.pid
432	mov eax,[eax]	432	mov eax,[eax]
433		433
434	cmp eax,[application_table_status]	434	cmp eax,[application_table_status]
435	jne apptsl1	435	jne apptsl1
436	mov [application_table_status],0	436	mov [application_table_status],0
437	apptsl1:	437	apptsl1:
438		438
439	pop eax	439	pop eax
440		440
441	ret	441	ret
442		442
443	sys_resize_app_memory:	443	sys_resize_app_memory:
444	; eax = 1 - resize	444	; eax = 1 - resize
445	; ebx = new amount of memory	445	; ebx = new amount of memory
446		446
447	cmp eax,1	447	cmp eax,1
448	jne .no_application_mem_resize	448	jne .no_application_mem_resize
449		449
450	stdcall new_mem_resize, ebx	450	stdcall new_mem_resize, ebx
451	mov [esp+36], eax	451	mov [esp+36], eax
452	ret	452	ret
453		453
454	.no_application_mem_resize:	454	.no_application_mem_resize:
455	ret	455	ret
456		456
457	sys_threads:	457	sys_threads:
458		458
459	; eax=1 create thread	459	; eax=1 create thread
460	;	460	;
461	; ebx=thread start	461	; ebx=thread start
462	; ecx=thread stack value	462	; ecx=thread stack value
463	;	463	;
464	; on return : eax = pid	464	; on return : eax = pid
465	jmp new_sys_threads	465	jmp new_sys_threads
466		466
467	iglobal	467	iglobal
468	process_terminating db 'K : Process - terminating',13,10,0	468	process_terminating db 'K : Process - terminating',13,10,0
469	process_terminated db 'K : Process - done',13,10,0	469	process_terminated db 'K : Process - done',13,10,0
470	msg_obj_destroy db 'K : destroy app object',13,10,0	470	msg_obj_destroy db 'K : destroy app object',13,10,0
471	endg	471	endg
472		472
473	; param	473	; param
474	; esi= slot	474	; esi= slot
475		475
476	terminate: ; terminate application	476	terminate: ; terminate application
477		477
478	.slot equ esp ;locals	478	.slot equ esp ;locals
479		479
480	push esi ;save .slot	480	push esi ;save .slot
481		481
482	shl esi, 8	482	shl esi, 8
483	cmp [SLOT_BASE+esi+APPDATA.dir_table], 0	483	cmp [SLOT_BASE+esi+APPDATA.dir_table], 0
484	jne @F	484	jne @F
485	add esp, 4	485	add esp, 4
486	ret	486	ret
487	@@:	487	@@:
488	mov esi,process_terminating	488	mov esi,process_terminating
489	call sys_msg_board_str	489	call sys_msg_board_str
490	@@:	490	@@:
491	cli	491	cli
492	cmp [application_table_status],0	492	cmp [application_table_status],0
493	je term9	493	je term9
494	sti	494	sti
495	call change_task	495	call change_task
496	jmp @b	496	jmp @b
497	term9:	497	term9:
498	call set_application_table_status	498	call set_application_table_status
499		499
500	mov esi, [.slot]	500	mov esi, [.slot]

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(root)/kernel/branches/flat_kernel/core/sys32.inc – Rev 430 → 432