0,0 → 1,217 |
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
;; ;; |
;; SYSTEM CALL ENTRY ;; |
;; ;; |
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
|
align 32 |
i40: |
push ds es |
pushad |
cld |
|
mov ax,word os_data |
mov ds,ax |
mov es,ax |
|
; load all registers in crossed order |
mov eax, ebx |
mov ebx, ecx |
mov ecx, edx |
mov edx, esi |
mov esi, edi |
mov edi, [esp+28] |
|
; enable interupts - a task switch or an IRQ _CAN_ interrupt i40 handler |
sti |
push eax |
and edi,0xff |
call dword [servetable+edi*4] |
pop eax |
; cli |
|
popad |
pop es ds |
iretd |
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
;; ;; |
;; SYSENTER ENTRY ;; |
;; ;; |
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
|
uglobal |
times 100 db ? |
sysenter_stack: |
endg |
|
align 32 |
SYSENTER_VAR equ 0 |
sysenter_entry: |
; Íàñòðàèâàåì ñòåê |
cli |
push eax |
mov eax, [ss:CURRENT_TASK] |
shl eax, 8 |
mov eax, [ss:SLOT_BASE + eax + APPDATA.pl0_stack] |
lea esp, [ss:eax + RING0_STACK_SIZE] ; configure ESP |
mov eax, [ss:sysenter_stack - 4] ; eax - original eax, from app |
sti |
;------------------ |
push ds es |
pushad |
cld |
|
mov ax, word os_data |
mov ds, ax |
mov es, ax |
|
mov eax, ebx |
mov ebx, ecx |
mov ecx, edx |
mov edx, esi |
mov esi, edi |
mov edi, [esp + 28] |
|
push eax |
and edi, 0xff |
call dword [servetable + edi * 4] |
pop eax |
|
popad |
pop es ds |
;------------------ |
mov edx, [SYSENTER_VAR] ; eip |
mov ecx, [SYSENTER_VAR + 4] ; esp |
sysexit |
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
;; ;; |
;; SYSCALL ENTRY ;; |
;; ;; |
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
align 32 |
syscall_entry: |
cli |
xchg ecx, [esp] |
mov [SYSENTER_VAR + 4], esp |
mov [ss:sysenter_stack - 4], eax |
mov eax, [ss:CURRENT_TASK] |
shl eax, 8 |
mov eax, [ss:SLOT_BASE + eax + APPDATA.pl0_stack] |
lea esp, [ss:eax + RING0_STACK_SIZE] ; configure ESP |
mov eax, [ss:sysenter_stack - 4] ; eax - original eax, from app |
sti |
;------------------ |
push ds es |
pushad |
cld |
|
mov ax, word os_data |
mov ds, ax |
mov es, ax |
|
mov eax, ebx |
mov ebx, ecx |
mov ecx, edx |
mov edx, esi |
mov esi, edi |
mov edi, [esp + 28] |
|
push eax |
and edi, 0xff |
call dword [servetable + edi * 4] |
pop eax |
|
popad |
pop es ds |
;------------------ |
mov esp, [SYSENTER_VAR + 4] |
xchg ecx, [esp] |
sysret |
iglobal |
;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
;; SYSTEM FUNCTIONS TABLE ;; |
;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
|
align 4 |
servetable: |
|
dd sys_drawwindow ; 0-DrawWindow |
dd syscall_setpixel ; 1-SetPixel |
dd sys_getkey ; 2-GetKey |
dd sys_clock ; 3-GetTime |
dd syscall_writetext ; 4-WriteText |
dd delay_hs ; 5-DelayHs |
dd syscall_openramdiskfile ; 6-OpenRamdiskFile |
dd syscall_putimage ; 7-PutImage |
dd sys_button ; 8-DefineButton |
dd sys_cpuusage ; 9-GetProcessInfo |
dd sys_waitforevent ; 10-WaitForEvent |
dd sys_getevent ; 11-CheckForEvent |
dd sys_redrawstat ; 12-BeginDraw and EndDraw |
dd syscall_drawrect ; 13-DrawRect |
dd syscall_getscreensize ; 14-GetScreenSize |
dd sys_background ; 15-bgr |
dd sys_cachetodiskette ; 16-FlushFloppyCache |
dd sys_getbutton ; 17-GetButton |
dd sys_system ; 18-System Services |
dd paleholder;undefined_syscall ; 19-reserved |
dd sys_midi ; 20-ResetMidi and OutputMidi |
dd sys_setup ; 21-SetMidiBase,SetKeymap,SetShiftKeymap,. |
dd sys_settime ; 22-setting date,time,clock and alarm-clock |
dd sys_wait_event_timeout ; 23-TimeOutWaitForEvent |
dd syscall_cdaudio ; 24-PlayCdTrack,StopCd and GetCdPlaylist |
dd sys_sb16 ; 25-SetSb16 |
dd sys_getsetup ; 26-GetMidiBase,GetKeymap,GetShiftKeymap,. |
dd undefined_syscall ; 27-reserved |
dd sys_sb16II ; 28-SetSb16 |
dd sys_date ; 29-GetDate |
dd undefined_syscall ; 30-reserved |
dd undefined_syscall ; 31-reserved |
dd syscall_delramdiskfile ; 32-DelRamdiskFile |
dd syscall_writeramdiskfile; 33-WriteRamdiskFile |
dd undefined_syscall ; 34-reserved |
dd syscall_getpixel ; 35-GetPixel |
dd syscall_readstring ; 36-ReadString (not yet ready) |
dd readmousepos ; 37-GetMousePosition_ScreenRelative,. |
dd syscall_drawline ; 38-DrawLine |
dd sys_getbackground ; 39-GetBackgroundSize,ReadBgrData,. |
dd set_app_param ; 40-WantEvents |
dd syscall_getirqowner ; 41-GetIrqOwner |
dd get_irq_data ; 42-ReadIrqData |
dd sys_outport ; 43-SendDeviceData |
dd sys_programirq ; 44-ProgramIrqs |
dd reserve_free_irq ; 45-ReserveIrq and FreeIrq |
dd syscall_reserveportarea ; 46-ReservePortArea and FreePortArea |
dd display_number ; 47-WriteNum |
dd display_settings ; 48-SetRedrawType and SetButtonType |
dd sys_apm ; 49-Advanced Power Management (APM) |
dd random_shaped_window ; 50-Window shape & scale |
dd syscall_threads ; 51-Threads |
dd stack_driver_stat ; 52-Stack driver status |
dd socket ; 53-Socket interface |
dd user_events ; 54-User events |
dd sound_interface ; 55-Sound interface |
dd undefined_syscall ; 56-reserved |
dd undefined_syscall ; 57-reserved |
dd file_system ; 58-Common file system interface |
dd undefined_syscall ; 59-reserved |
dd sys_IPC ; 60-Inter Process Communication |
dd sys_gs ; 61-Direct graphics access |
dd sys_pci ; 62-PCI functions |
dd sys_msg_board ; 63-System message board |
dd sys_resize_app_memory ; 64-Resize application memory usage |
dd syscall_putimage_palette; 65-PutImagePalette |
dd sys_process_def ; 66-Process definitions - keyboard |
dd sys_window_move ; 67-Window move or resize |
dd new_services ; 68-Some internal services |
dd sys_debug_services ; 69-Debug |
dd file_system_lfn ; 70-Common file system interface, version 2 |
dd syscall_windowsettings ; 71-Window settings |
|
times 255 - ( ($-servetable) /4 ) dd undefined_syscall |
|
dd sys_end ; -1-end application |
endg |