2007-03-05 21:17:43 +01:00
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; SYSTEM CALL ENTRY ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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2007-03-19 07:28:05 +01:00
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align 16
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2007-03-05 21:17:43 +01:00
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i40:
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pushad
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cld
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2007-03-19 07:28:05 +01:00
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; mov ax, word app_data
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; mov ds, ax
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; mov es, ax
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2007-03-05 21:17:43 +01:00
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; load all registers in crossed order
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mov eax, ebx
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mov ebx, ecx
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mov ecx, edx
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mov edx, esi
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mov esi, edi
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mov edi, [esp+28]
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; enable interupts - a task switch or an IRQ _CAN_ interrupt i40 handler
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sti
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push eax
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and edi,0xff
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call dword [servetable+edi*4]
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pop eax
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popad
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iretd
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; SYSENTER ENTRY ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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uglobal
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times 100 db ?
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sysenter_stack:
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endg
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align 32
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SYSENTER_VAR equ 0
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sysenter_entry:
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; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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2007-03-08 12:28:22 +01:00
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; cli sysenter clear IF
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; push eax
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; mov eax, [ss:CURRENT_TASK]
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; shl eax, 8
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; mov eax, [ss:SLOT_BASE + eax + APPDATA.pl0_stack]
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; lea esp, [eax + RING0_STACK_SIZE] ; configure ESP
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; mov eax, [ss:sysenter_stack - 4] ; eax - original eax, from app
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2007-03-22 13:01:05 +01:00
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mov esp, [current_slot]
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mov esp, [esp + APPDATA.pl0_stack]
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2007-03-08 12:28:22 +01:00
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add esp, RING0_STACK_SIZE ; configure ESP
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2007-03-05 21:17:43 +01:00
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sti
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2007-03-19 07:28:05 +01:00
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;------------------
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2007-03-05 21:17:43 +01:00
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pushad
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cld
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2007-03-19 07:28:05 +01:00
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; mov ax, word app_data
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; mov ds, ax
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; mov es, ax
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2007-03-05 21:17:43 +01:00
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mov eax, ebx
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mov ebx, ecx
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mov ecx, edx
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mov edx, esi
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mov esi, edi
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mov edi, [esp + 28]
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push eax
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and edi, 0xff
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call dword [servetable + edi * 4]
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pop eax
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popad
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;------------------
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2007-03-19 07:28:05 +01:00
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mov edx, [SYSENTER_VAR] ; eip
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mov ecx, [SYSENTER_VAR + 4] ; esp
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2007-03-05 21:17:43 +01:00
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sysexit
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; SYSCALL ENTRY ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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align 32
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syscall_entry:
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2007-03-08 12:28:22 +01:00
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; cli syscall clear IF
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2007-03-05 21:17:43 +01:00
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xchg ecx, [esp]
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mov [SYSENTER_VAR + 4], esp
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2007-03-08 12:28:22 +01:00
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; mov [ss:sysenter_stack - 4], eax
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; mov eax, [ss:CURRENT_TASK]
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; shl eax, 8
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; mov eax, [ss:SLOT_BASE + eax + APPDATA.pl0_stack]
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; lea esp, [eax + RING0_STACK_SIZE] ; configure ESP
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; mov eax, [ss:sysenter_stack - 4] ; eax - original eax, from app
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2007-03-22 13:01:05 +01:00
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mov esp, [current_slot]
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mov esp, [esp + APPDATA.pl0_stack]
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2007-03-08 12:28:22 +01:00
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add esp, RING0_STACK_SIZE ; configure ESP
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2007-03-05 21:17:43 +01:00
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sti
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;------------------
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pushad
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cld
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2007-03-19 07:28:05 +01:00
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; mov ax, word app_data
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; mov ds, ax
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; mov es, ax
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2007-03-05 21:17:43 +01:00
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mov eax, ebx
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mov ebx, ecx
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mov ecx, edx
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mov edx, esi
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mov esi, edi
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mov edi, [esp + 28]
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push eax
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and edi, 0xff
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call dword [servetable + edi * 4]
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pop eax
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popad
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;------------------
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2007-03-08 12:28:22 +01:00
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cli
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2007-03-05 21:17:43 +01:00
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mov esp, [SYSENTER_VAR + 4]
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xchg ecx, [esp]
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sysret
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iglobal
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; SYSTEM FUNCTIONS TABLE ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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align 4
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servetable:
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dd sys_drawwindow ; 0-DrawWindow
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dd syscall_setpixel ; 1-SetPixel
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dd sys_getkey ; 2-GetKey
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dd sys_clock ; 3-GetTime
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dd syscall_writetext ; 4-WriteText
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dd delay_hs ; 5-DelayHs
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dd syscall_openramdiskfile ; 6-OpenRamdiskFile
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dd syscall_putimage ; 7-PutImage
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dd sys_button ; 8-DefineButton
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dd sys_cpuusage ; 9-GetProcessInfo
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dd sys_waitforevent ; 10-WaitForEvent
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dd sys_getevent ; 11-CheckForEvent
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dd sys_redrawstat ; 12-BeginDraw and EndDraw
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dd syscall_drawrect ; 13-DrawRect
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dd syscall_getscreensize ; 14-GetScreenSize
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dd sys_background ; 15-bgr
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dd sys_cachetodiskette ; 16-FlushFloppyCache
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dd sys_getbutton ; 17-GetButton
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dd sys_system ; 18-System Services
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dd paleholder;undefined_syscall ; 19-reserved
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dd sys_midi ; 20-ResetMidi and OutputMidi
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dd sys_setup ; 21-SetMidiBase,SetKeymap,SetShiftKeymap,.
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dd sys_settime ; 22-setting date,time,clock and alarm-clock
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dd sys_wait_event_timeout ; 23-TimeOutWaitForEvent
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dd syscall_cdaudio ; 24-PlayCdTrack,StopCd and GetCdPlaylist
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dd sys_sb16 ; 25-SetSb16
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dd sys_getsetup ; 26-GetMidiBase,GetKeymap,GetShiftKeymap,.
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dd undefined_syscall ; 27-reserved
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dd sys_sb16II ; 28-SetSb16
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dd sys_date ; 29-GetDate
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dd undefined_syscall ; 30-reserved
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dd undefined_syscall ; 31-reserved
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dd syscall_delramdiskfile ; 32-DelRamdiskFile
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dd syscall_writeramdiskfile; 33-WriteRamdiskFile
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dd undefined_syscall ; 34-reserved
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dd syscall_getpixel ; 35-GetPixel
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dd syscall_readstring ; 36-ReadString (not yet ready)
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dd readmousepos ; 37-GetMousePosition_ScreenRelative,.
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dd syscall_drawline ; 38-DrawLine
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dd sys_getbackground ; 39-GetBackgroundSize,ReadBgrData,.
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dd set_app_param ; 40-WantEvents
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dd syscall_getirqowner ; 41-GetIrqOwner
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dd get_irq_data ; 42-ReadIrqData
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dd sys_outport ; 43-SendDeviceData
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dd sys_programirq ; 44-ProgramIrqs
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dd reserve_free_irq ; 45-ReserveIrq and FreeIrq
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dd syscall_reserveportarea ; 46-ReservePortArea and FreePortArea
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dd display_number ; 47-WriteNum
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dd display_settings ; 48-SetRedrawType and SetButtonType
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dd sys_apm ; 49-Advanced Power Management (APM)
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dd random_shaped_window ; 50-Window shape & scale
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dd syscall_threads ; 51-Threads
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dd stack_driver_stat ; 52-Stack driver status
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dd socket ; 53-Socket interface
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dd user_events ; 54-User events
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dd sound_interface ; 55-Sound interface
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dd undefined_syscall ; 56-reserved
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dd undefined_syscall ; 57-reserved
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dd file_system ; 58-Common file system interface
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dd undefined_syscall ; 59-reserved
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dd sys_IPC ; 60-Inter Process Communication
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dd sys_gs ; 61-Direct graphics access
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dd sys_pci ; 62-PCI functions
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dd sys_msg_board ; 63-System message board
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dd sys_resize_app_memory ; 64-Resize application memory usage
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dd syscall_putimage_palette; 65-PutImagePalette
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dd sys_process_def ; 66-Process definitions - keyboard
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dd sys_window_move ; 67-Window move or resize
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dd new_services ; 68-Some internal services
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dd sys_debug_services ; 69-Debug
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dd file_system_lfn ; 70-Common file system interface, version 2
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dd syscall_windowsettings ; 71-Window settings
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times 255 - ( ($-servetable) /4 ) dd undefined_syscall
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dd sys_end ; -1-end application
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endg
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