WebSVN – Kolibri OS – Diff – /kernel/trunk/kernel.asm


;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; Copyright (C) KolibriOS team 2004-2020. All rights reserved.
;; PROGRAMMING:
;; Ivan Poddubny
;; Marat Zakiyanov (Mario79)
;; VaStaNi
;; Trans
;; Mihail Semenyako (mike.dld)
;; Sergey Kuzmin (Wildwest)
;; Andrey Halyavin (halyavin)
;; Mihail Lisovin (Mihasik)
;; Andrey Ignatiev (andrew_programmer)
;; NoName
;; Evgeny Grechnikov (Diamond)
;; Iliya Mihailov (Ghost)
;; Sergey Semyonov (Serge)
;; Johnny_B
;; SPraid (simba)
;; Hidnplayr
;; Alexey Teplov ()
;; Rus
;; Nable
;; shurf
;; Alver
;; Maxis
;; Galkov
;; CleverMouse
;; tsdima
;; turbanoff
;; Asper
;; art_zh
;;
;; Data in this file was originally part of MenuetOS project which is
;; distributed under the terms of GNU GPL. It is modified and redistributed as
;; part of KolibriOS project under the terms of GNU GPL.
;;
;; Copyright (C) MenuetOS 2000-2004 Ville Mikael Turjanmaa
;; PROGRAMMING:
;;
;; Ville Mikael Turjanmaa, villemt@itu.jyu.fi
;; - main os coding/design
;; Jan-Michael Brummer, BUZZ2@gmx.de
;; Felix Kaiser, info@felix-kaiser.de
;; Paolo Minazzi, paolo.minazzi@inwind.it
;; quickcode@mail.ru
;; Alexey, kgaz@crosswinds.net
;; Juan M. Caravaca, bitrider@wanadoo.es
;; kristol@nic.fi
;; Mike Hibbett, mikeh@oceanfree.net
;; Lasse Kuusijarvi, kuusijar@lut.fi
;; Jarek Pelczar, jarekp3@wp.pl
;;
;; KolibriOS is distributed in the hope that it will be useful, but WITHOUT ANY
;; WARRANTY. No author or distributor accepts responsibility to anyone for the
;; consequences of using it or for whether it serves any particular purpose or
;; works at all, unless he says so in writing. Refer to the GNU General Public
;; License (the "GPL") for full details.
;
;; Everyone is granted permission to copy, modify and redistribute KolibriOS,
;; but only under the conditions described in the GPL. A copy of this license
;; is supposed to have been given to you along with KolibriOS so you can know
;; your rights and responsibilities. It should be in a file named COPYING.
;; Among other things, the copyright notice and this notice must be preserved
;; on all copies.
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
format binary as "mnt"
 
include 'macros.inc'
include 'struct.inc'
 
$Revision: 8249 $
 
 
USE_COM_IRQ     = 1      ; make irq 3 and irq 4 available for PCI devices
VESA_1_2_VIDEO  = 0      ; enable vesa 1.2 bank switch functions
 
; Enabling the next line will enable serial output console
;debug_com_base  = 0x3f8  ; 0x3f8 is com1, 0x2f8 is com2, 0x3e8 is com3, 0x2e8 is com4, no irq's are used
 
include "proc32.inc"
include "kglobals.inc"
include "lang.inc"
include "encoding.inc"
 
include "const.inc"
 
iglobal
; The following variable, if equal to 1, duplicates debug output to the screen.
debug_direct_print db 0
; Start the first app (LAUNCHER) after kernel is loaded? (1=yes, 2 or 0=no)
launcher_start db 1
endg
 
max_processes  =  255
tss_step       =  128 + 8192 ; tss & i/o - 65535 ports, * 256=557056*4
 
os_stack       =  os_data_l - gdts    ; GDTs
os_code        =  os_code_l - gdts
graph_data     =  3 + graph_data_l - gdts
tss0           =  tss0_l - gdts
app_code       =  3 + app_code_l - gdts
app_data       =  3 + app_data_l - gdts
app_tls        =  3 + tls_data_l - gdts
pci_code_sel   =  pci_code_32-gdts
pci_data_sel   =  pci_data_32-gdts
 
 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;;   Included files:
;;
;;   Kernel16.inc
;;    - Booteng.inc   English text for bootup
;;    - Bootcode.inc  Hardware setup
;;    - Pci16.inc     PCI functions
;;
;;   Kernel32.inc
;;    - Sys32.inc     Process management
;;    - Shutdown.inc  Shutdown and restart
;;    - Fat32.inc     Read / write hd
;;    - Vesa12.inc    Vesa 1.2 driver
;;    - Vesa20.inc    Vesa 2.0 driver
;;    - Vga.inc       VGA driver
;;    - Stack.inc     Network interface
;;    - Mouse.inc     Mouse pointer
;;    - Scincode.inc  Window skinning
;;    - Pci32.inc     PCI functions
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
; In bios boot mode the kernel code below is appended to bootbios.bin file.
; That is a loading and initialization code that also draws the blue screen
; menu with svn revision number near top right corner of the screen. This fasm
; preprocessor code searches for '****' signature inside bootbios.bin and
; places revision number there.
if ~ defined UEFI
  bootbios:
  if ~ defined extended_primary_loader
    file 'bootbios.bin'
  else
    file 'bootbios.bin.ext_loader'
  end if
  if __REV__ > 0
    cur_pos = 0
    cnt = 0
    repeat $ - bootbios
      load a byte from %
      if a = '*'
        cnt = cnt + 1
      else
        cnt = 0
      end if
      if cnt = 4
        cur_pos = % - 1
        break
      end if
    end repeat
    store byte ' ' at cur_pos + 1
    rev_var = __REV__
    while rev_var > 0
      store byte rev_var mod 10 + '0' at cur_pos
      cur_pos = cur_pos - 1
      rev_var = rev_var / 10
    end while
      store byte ' ' at cur_pos
      store dword ' SVN' at cur_pos - 4
  end if
end if
 
use32
org $+0x10000
 
align 4
B32:
        mov     ax, os_stack       ; Selector for os
        mov     ds, ax
        mov     es, ax
        mov     fs, ax
        mov     gs, ax
        mov     ss, ax
        mov     esp, TMP_STACK_TOP       ; Set stack
 
; CLEAR 0x280000 - HEAP_BASE
 
        xor     eax, eax
        mov     edi, CLEAN_ZONE
        mov     ecx, (HEAP_BASE-OS_BASE-CLEAN_ZONE) / 4
        cld
        rep stosd
 
; CLEAR KERNEL UNDEFINED GLOBALS
        mov     edi, endofcode-OS_BASE
        mov     ecx, 0x90000
        sub     ecx, edi
        shr     ecx, 2
        rep stosd
 
; SAVE & CLEAR 0-0xffff
 
        mov     edi, 0x1000
        mov     ecx, 0x8000 / 4
        rep stosd
        mov     edi, 0xa000
        mov     ecx, 0x6000 / 4
        rep stosd
 
        call    test_cpu
        bts     [cpu_caps-OS_BASE], CAPS_TSC    ;force use rdtsc
 
        call    acpi_locate
        call    init_BIOS32
; MEMORY MODEL
        call    mem_test
        call    init_mem
        call    init_page_map
 
; ENABLE PAGING
 
        mov     eax, sys_proc-OS_BASE+PROC.pdt_0
        mov     cr3, eax
 
        mov     eax, cr0
        or      eax, CR0_PG+CR0_WP
        mov     cr0, eax
 
        lgdt    [gdts]
        jmp     pword os_code:high_code
 
align 4
bios32_entry    dd ?
tmp_page_tabs   dd ?
use16
ap_init16:
        cli
        lgdt    [cs:gdts_ap-ap_init16]
        mov     eax, [cs:cr3_ap-ap_init16]
        mov     cr3, eax
        mov     eax, [cs:cr4_ap-ap_init16]
        mov     cr4, eax
        mov     eax, CR0_PE+CR0_PG+CR0_WP
        mov     cr0, eax
        jmp     pword os_code:ap_init_high
align 16
gdts_ap:
        dw     gdte-gdts-1
        dd     gdts
        dw     0
cr3_ap  dd     ?
cr4_ap  dd     ?
ap_init16_size = $ - ap_init16
use32
 
__DEBUG__ fix 1
__DEBUG_LEVEL__ fix 1
include 'init.inc'
 
org OS_BASE+$
 
include 'fdo.inc'
 
align 4
high_code:
        mov     ax, os_stack
        mov     bx, app_data
        mov     cx, app_tls
        mov     ss, ax
        add     esp, OS_BASE
 
        mov     ds, bx
        mov     es, bx
        mov     fs, cx
        mov     gs, bx
 
        xor     eax, eax
        mov     ebx, 0xFFFFF000+PG_SHARED+PG_NOCACHE+PG_UWR
        bt      [cpu_caps], CAPS_PAT
        setc    al
        shl     eax, 7
        or      ebx, eax
 
        mov     eax, PG_GLOBAL
        bt      [cpu_caps], CAPS_PGE
        jnc     @F
 
        or      [sys_proc+PROC.pdt_0+(OS_BASE shr 20)], eax
        or      ebx, eax
 
        mov     eax, cr4
        or      eax, CR4_PGE
        mov     cr4, eax
@@:
        mov     [pte_valid_mask], ebx
 
        xor     eax, eax
        mov     dword [sys_proc+PROC.pdt_0], eax
        mov     dword [sys_proc+PROC.pdt_0+4], eax
 
        mov     eax, cr3
        mov     cr3, eax          ; flush TLB
 
        mov     ecx, pg_data.mutex
        call    mutex_init
 
        mov     ecx, disk_list_mutex
        call    mutex_init
 
        mov     ecx, keyboard_list_mutex
        call    mutex_init
 
        mov     ecx, unpack_mutex
        call    mutex_init
 
        mov     ecx, application_table_mutex
        call    mutex_init
 
        mov     ecx, ide_mutex
        call    mutex_init
        mov     ecx, ide_channel1_mutex
        call    mutex_init
        mov     ecx, ide_channel2_mutex
        call    mutex_init
        mov     ecx, ide_channel3_mutex
        call    mutex_init
        mov     ecx, ide_channel4_mutex
        call    mutex_init
        mov     ecx, ide_channel5_mutex
        call    mutex_init
        mov     ecx, ide_channel6_mutex
        call    mutex_init
;-----------------------------------------------------------------------------
; SAVE REAL MODE VARIABLES
;-----------------------------------------------------------------------------
; --------------- APM ---------------------
 
; init selectors
        mov     ebx, [BOOT.apm_entry]        ; offset of APM entry point
        movzx   eax, word [BOOT.apm_code_32] ; real-mode segment base address of
                                             ; protected-mode 32-bit code segment
        movzx   ecx, word [BOOT.apm_code_16] ; real-mode segment base address of
                                             ; protected-mode 16-bit code segment
        movzx   edx, word [BOOT.apm_data_16] ; real-mode segment base address of
                                             ; protected-mode 16-bit data segment
 
        shl     eax, 4
        mov     [dword apm_code_32 + 2], ax
        shr     eax, 16
        mov     [dword apm_code_32 + 4], al
 
        shl     ecx, 4
        mov     [dword apm_code_16 + 2], cx
        shr     ecx, 16
        mov     [dword apm_code_16 + 4], cl
 
        shl     edx, 4
        mov     [dword apm_data_16 + 2], dx
        shr     edx, 16
        mov     [dword apm_data_16 + 4], dl
 
        mov     dword[apm_entry], ebx
        mov     word [apm_entry + 4], apm_code_32 - gdts
 
        mov     eax, dword[BOOT.apm_version]   ; version & flags
        mov     [apm_vf], eax
; -----------------------------------------
        mov     al, [BOOT.dma]            ; DMA access
        mov     [allow_dma_access], al
 
        mov     al, [BOOT.debug_print]    ; If nonzero, duplicates debug output to the screen
        mov     [debug_direct_print], al
 
        mov     al, [BOOT.launcher_start] ; Start the first app (LAUNCHER) after kernel is loaded?
        mov     [launcher_start], al
 
        mov     eax, [BOOT.devicesdat_size]
        mov     [acpi_dev_size], eax
        mov     eax, [BOOT.devicesdat_data]
        mov     [acpi_dev_data], eax
 
        mov     esi, BOOT.bios_hd
        movzx   ecx, byte [esi-1]
        mov     [NumBiosDisks], ecx
        mov     edi, BiosDisksData
        shl     ecx, 2
        rep movsd
 
; -------- Fast System Call init ----------
; Intel SYSENTER/SYSEXIT (AMD CPU support it too)
        bt      [cpu_caps], CAPS_SEP
        jnc     .SEnP  ; SysEnter not Present
        xor     edx, edx
        mov     ecx, MSR_SYSENTER_CS
        mov     eax, os_code
        wrmsr
        mov     ecx, MSR_SYSENTER_ESP
;           mov eax, sysenter_stack ; Check it
        xor     eax, eax
        wrmsr
        mov     ecx, MSR_SYSENTER_EIP
        mov     eax, sysenter_entry
        wrmsr
.SEnP:
; AMD SYSCALL/SYSRET
        cmp     byte[cpu_vendor], 'A'
        jne     .noSYSCALL
        mov     eax, 0x80000001
        cpuid
        test    edx, 0x800  ; bit_11 - SYSCALL/SYSRET support
        jz      .noSYSCALL
        mov     ecx, MSR_AMD_EFER
        rdmsr
        or      eax, 1 ; bit_0 - System Call Extension (SCE)
        wrmsr
 
        ; !!!! It`s dirty hack, fix it !!!
        ; Bits of EDX :
        ; Bit 31–16 During the SYSRET instruction, this field is copied into the CS register
        ;  and the contents of this field, plus 8, are copied into the SS register.
        ; Bit 15–0 During the SYSCALL instruction, this field is copied into the CS register
        ;  and the contents of this field, plus 8, are copied into the SS register.
 
        ; mov   edx, (os_code + 16) * 65536 + os_code
        mov     edx, 0x1B0008
 
        mov     eax, syscall_entry
        mov     ecx, MSR_AMD_STAR
        wrmsr
.noSYSCALL:
; -----------------------------------------
        stdcall alloc_page
        stdcall map_page, tss-0xF80, eax, PG_SWR
        stdcall alloc_page
        stdcall map_page, tss+0x80, eax, PG_SWR
        stdcall alloc_page
        stdcall map_page, tss+0x1080, eax, PG_SWR
 
; LOAD IDT
 
        call    build_interrupt_table ;lidt is executed
          ;lidt [idtreg]
 
        call    init_kernel_heap
        call    init_fpu
        mov     eax, [xsave_area_size]
        lea     eax, [eax*2 + RING0_STACK_SIZE*2]
        stdcall kernel_alloc, eax
        mov     [os_stack_seg], eax
 
        lea     esp, [eax+RING0_STACK_SIZE]
 
        mov     [tss._ss0], os_stack
        mov     [tss._esp0], esp
        mov     [tss._esp], esp
        mov     [tss._cs], os_code
        mov     [tss._ss], os_stack
        mov     [tss._ds], app_data
        mov     [tss._es], app_data
        mov     [tss._fs], app_data
        mov     [tss._gs], app_data
        mov     [tss._io], 128
;Add IO access table - bit array of permitted ports
        mov     edi, tss._io_map_0
        xor     eax, eax
        not     eax
        mov     ecx, 8192/4
        rep stosd                    ; access to 4096*8=65536 ports
 
        mov     ax, tss0
        ltr     ax
 
        mov     eax, sys_proc
        list_init eax
        add     eax, PROC.thr_list
        list_init eax
 
        call    init_video
        call    init_mtrr
        mov     [LFBAddress], LFB_BASE
        mov     ecx, bios_fb
        call    set_framebuffer
        call    init_malloc
 
        stdcall alloc_kernel_space, 0x50000         ; FIXME check size
        mov     [default_io_map], eax
 
        add     eax, 0x2000
        mov     [ipc_tmp], eax
        mov     ebx, 0x1000
 
        add     eax, 0x40000
        mov     [proc_mem_map], eax
 
        add     eax, 0x8000
        mov     [proc_mem_pdir], eax
 
        add     eax, ebx
        mov     [proc_mem_tab], eax
 
        add     eax, ebx
        mov     [tmp_task_ptab], eax
 
        add     eax, ebx
        mov     [ipc_pdir], eax
 
        add     eax, ebx
        mov     [ipc_ptab], eax
 
        stdcall kernel_alloc, (unpack.LZMA_BASE_SIZE+(unpack.LZMA_LIT_SIZE shl \
                (unpack.lc+unpack.lp)))*4
 
        mov     [unpack.p], eax
 
        call    init_events
        mov     eax, srv.fd-SRV.fd
        mov     [srv.fd], eax
        mov     [srv.bk], eax
 
;Set base of graphic segment to linear address of LFB
        mov     eax, [LFBAddress]         ; set for gs
        mov     [graph_data_l+2], ax
        shr     eax, 16
        mov     [graph_data_l+4], al
        mov     [graph_data_l+7], ah
 
        stdcall kernel_alloc, [_display.win_map_size]
        mov     [_display.win_map], eax
 
        xor     eax, eax
        inc     eax
 
; set background
 
        mov     [BgrDrawMode], eax
        mov     [BgrDataWidth], eax
        mov     [BgrDataHeight], eax
        mov     [mem_BACKGROUND], 4
        mov     [img_background], static_background_data
 
; set clipboard
 
        xor     eax, eax
        mov     [clipboard_slots], eax
        mov     [clipboard_write_lock], eax
        stdcall kernel_alloc, 4096
        test    eax, eax
        jnz     @f
 
        dec     eax
@@:
        mov     [clipboard_main_list], eax
 
        call    check_acpi
 
        mov     eax, [hpet_base]
        test    eax, eax
        jz      @F
        stdcall map_io_mem, [hpet_base], 1024, PG_GLOBAL+PAT_UC+PG_SWR
        mov     [hpet_base], eax
        mov     eax, [eax+HPET_ID]
        DEBUGF  1, "K : HPET caps %x\n", eax
        call    init_hpet
@@:
; SET UP OS TASK
 
        mov     esi, boot_setostask
        call    boot_log
 
        mov     edi, sys_proc+PROC.heap_lock
        mov     ecx, (PROC.ht_free-PROC.heap_lock)/4
 
        xor     eax, eax
        cld
        rep stosd
 
        mov     [edi], dword (PROC.pdt_0 - PROC.htab)/4 - 3
        mov     [edi+4], dword 3           ;reserve handles for stdin stdout and stderr
        mov     ecx, (PROC.pdt_0 - PROC.htab)/4
        add     edi, 8
        inc     eax
@@:
        stosd
        inc     eax
        cmp     eax, ecx
        jbe     @B
 
        mov     [sys_proc+PROC.pdt_0_phys], sys_proc-OS_BASE+PROC.pdt_0
 
        mov     eax, -1
        mov     edi, thr_slot_map+4
        mov     [edi-4], dword 0xFFFFFFF8
        stosd
        stosd
        stosd
        stosd
        stosd
        stosd
        stosd
 
        mov     [current_process], sys_proc
 
        mov     edx, SLOT_BASE+sizeof.APPDATA*1
        mov     ebx, [os_stack_seg]
        add     ebx, RING0_STACK_SIZE
        add     ebx, [xsave_area_size]
        call    setup_os_slot
        mov     dword [edx], 'IDLE'
        sub     [edx+APPDATA.saved_esp], 4
        mov     eax, [edx+APPDATA.saved_esp]
        mov     dword [eax], idle_thread
        mov     ecx, IDLE_PRIORITY
        call    scheduler_add_thread
 
        mov     edx, SLOT_BASE+sizeof.APPDATA*2
        mov     ebx, [os_stack_seg]
        call    setup_os_slot
        mov     dword [edx], 'OS'
        xor     ecx, ecx
        call    scheduler_add_thread
 
        mov     dword [CURRENT_TASK], 2
        mov     dword [TASK_COUNT], 2
        mov     dword [current_slot], SLOT_BASE + sizeof.APPDATA*2
        mov     dword [TASK_BASE], CURRENT_TASK + sizeof.TASKDATA*2
 
; Move other CPUs to deep sleep, if it is useful
uglobal
use_mwait_for_idle db 0
endg
        cmp     [cpu_vendor+8], 'ntel'
        jnz     .no_wake_cpus
        bt      [cpu_caps+4], CAPS_MONITOR-32
        jnc     .no_wake_cpus
        dbgstr 'using mwait for idle loop'
        inc     [use_mwait_for_idle]
        mov     ebx, [cpu_count]
        cmp     ebx, 1
        jbe     .no_wake_cpus
        call    create_trampoline_pgmap
        mov     [cr3_ap+OS_BASE], eax
        mov     eax, cr4
        mov     [cr4_ap+OS_BASE], eax
        mov     esi, OS_BASE + ap_init16
        mov     edi, OS_BASE + 8000h
        mov     ecx, (ap_init16_size + 3) / 4
        rep movsd
        mov     eax, [LAPIC_BASE]
        test    eax, eax
        jnz     @f
        stdcall map_io_mem, [acpi_lapic_base], 0x1000, PG_GLOBAL+PG_NOCACHE+PG_SWR
        mov     [LAPIC_BASE], eax
@@:
        lea     edi, [eax+APIC_ICRL]
        mov     esi, smpt+4
        dec     ebx
.wake_cpus_loop:
        lodsd
        push    esi
        xor     esi, esi
        inc     esi
        shl     eax, 24
        mov     [edi+10h], eax
; assert INIT IPI
        mov     dword [edi], 0C500h
        call    delay_ms
@@:
        test    dword [edi], 1000h
        jnz     @b
; deassert INIT IPI
        mov     dword [edi], 8500h
        call    delay_ms
@@:
        test    dword [edi], 1000h
        jnz     @b
; send STARTUP IPI
        mov     dword [edi], 600h + (8000h shr 12)
        call    delay_ms
@@:
        test    dword [edi], 1000h
        jnz     @b
        pop     esi
        dec     ebx
        jnz     .wake_cpus_loop
        mov     eax, [cpu_count]
        dec     eax
@@:
        cmp     [ap_initialized], eax
        jnz     @b
        mov     eax, [cr3_ap+OS_BASE]
        call    free_page
.no_wake_cpus:
 
; REDIRECT ALL IRQ'S TO INT'S 0x20-0x2f
        mov     esi, boot_initirq
        call    boot_log
        call    init_irqs
 
        mov     esi, boot_picinit
        call    boot_log
        call    PIC_init
 
        mov     esi, boot_v86machine
        call    boot_log
; Initialize system V86 machine
        call    init_sys_v86
 
        mov     esi, boot_inittimer
        call    boot_log
; Initialize system timer (IRQ0)
        call    PIT_init
 
; Register ramdisk file system
if ~ defined extended_primary_loader
        cmp     [BOOT.rd_load_from], RD_LOAD_FROM_HD    ; will be loaded later
        je      @f
end if
        cmp     [BOOT.rd_load_from], RD_LOAD_FROM_NONE
        je      @f
        call    register_ramdisk
;--------------------------------------
@@:
        mov     esi, boot_initapic
        call    boot_log
; Try to Initialize APIC
        call    APIC_init
 
        mov     esi, boot_enableirq
        call    boot_log
; Enable timer IRQ (IRQ0) and co-processor IRQ (IRQ13)
; they are used: when partitions are scanned, hd_read relies on timer
        call    unmask_timer
        ; Prevent duplicate timer IRQs in APIC mode
        cmp     [irq_mode], IRQ_APIC
        jz      @f
        stdcall enable_irq, 2               ; @#$%! PIC
@@:
        stdcall enable_irq, 13              ; co-processor
 
; Setup serial output console (if enabled)
if defined debug_com_base
 
        ; reserve port so nobody else will use it
        xor     ebx, ebx
        mov     ecx, debug_com_base
        mov     edx, debug_com_base+7
        call    r_f_port_area
 
        ; enable Divisor latch
        mov     dx, debug_com_base+3
        mov     al, 1 shl 7
        out     dx, al
 
        ; Set speed to 115200 baud (max speed)
        mov     dx, debug_com_base
        mov     al, 0x01
        out     dx, al
 
        mov     dx, debug_com_base+1
        mov     al, 0x00
        out     dx, al
 
        ; No parity, 8bits words, one stop bit, dlab bit back to 0
        mov     dx, debug_com_base+3
        mov     al, 3
        out     dx, al
 
        ; disable interrupts
        mov     dx, debug_com_base+1
        mov     al, 0
        out     dx, al
 
        ; clear +  enable fifo (64 bits)
        mov     dx, debug_com_base+2
        mov     al, 0x7 + 1 shl 5
        out     dx, al
 
end if
 
 
;-----------------------------------------------------------------------------
; show SVN version of kernel on the message board
;-----------------------------------------------------------------------------
        mov     eax, [version_inf.rev]
        DEBUGF  1, "K : kernel SVN r%d\n", eax
;-----------------------------------------------------------------------------
; show CPU count on the message board
;-----------------------------------------------------------------------------
        mov     eax, [cpu_count]
        test    eax, eax
        jnz     @F
        mov     al, 1                             ; at least one CPU
@@:
        DEBUGF  1, "K : %d CPU detected\n", eax
;-----------------------------------------------------------------------------
; detect Floppy drives
;-----------------------------------------------------------------------------
        mov     esi, boot_detectfloppy
        call    boot_log
include 'detect/dev_fd.inc'
;-----------------------------------------------------------------------------
; create pci-devices list
;-----------------------------------------------------------------------------
        mov     [pci_access_enabled], 1
        call    pci_enum
;-----------------------------------------------------------------------------
; initialisation IDE ATA code
;-----------------------------------------------------------------------------
include 'detect/init_ata.inc'
;-----------------------------------------------------------------------------
if 0
        mov     ax, [BOOT.sys_disk]
        cmp     ax, 'r1'; if using not ram disk, then load librares and parameters {SPraid.simba}
        je      no_lib_load
 
        mov     esi, boot_loadlibs
        call    boot_log
; LOADING LIBRARES
        stdcall dll.Load, @IMPORT           ; loading librares for kernel (.obj files)
        call    load_file_parse_table       ; prepare file parse table
        call    set_kernel_conf             ; configure devices and gui
no_lib_load:
end if
 
; Display APIC status
        mov     esi, boot_APIC_found
        cmp     [irq_mode], IRQ_APIC
        je      @f
        mov     esi, boot_APIC_nfound
@@:
        call    boot_log
 
; PRINT AMOUNT OF MEMORY
        mov     esi, boot_memdetect
        call    boot_log
 
        movzx   ecx, word [boot_y]
        if lang eq ru
        or      ecx, (10+30*6) shl 16
        else if lang eq sp
        or      ecx, (10+33*6) shl 16
        else
        or      ecx, (10+29*6) shl 16
        end if
        sub     ecx, 10
        mov     edx, 0xFFFFFF
        mov     ebx, [MEM_AMOUNT]
        shr     ebx, 20
        xor     edi, edi
        mov     eax, 0x00040000
        inc     edi
        call    display_number_force
 
; BUILD SCHEDULER
 
;        call    build_scheduler; sys32.inc
 
;        mov     esi, boot_devices
;        call    boot_log
 
include "detect/vortex86.inc"                     ; Vortex86 SoC detection code
 
        stdcall load_pe_driver, szVidintel, 0
 
        call    usb_init
 
; SET PRELIMINARY WINDOW STACK AND POSITIONS
 
        mov     esi, boot_windefs
        call    boot_log
        call    set_window_defaults
 
; SET BACKGROUND DEFAULTS
 
        mov     esi, boot_bgr
        call    boot_log
        call    init_background
        call    calculatebackground
 
; RESERVE SYSTEM IRQ'S JA PORT'S
 
        mov     esi, boot_resirqports
        call    boot_log
        call    reserve_irqs_ports
 
        call    init_display
        mov     eax, [def_cursor]
        mov     [SLOT_BASE+APPDATA.cursor+sizeof.APPDATA], eax
        mov     [SLOT_BASE+APPDATA.cursor+sizeof.APPDATA*2], eax
 
; PRINT CPU FREQUENCY
 
        mov     esi, boot_cpufreq
        call    boot_log
 
        cli
        mov     ebx, [hpet_base]
        test    ebx, ebx
        jz      @F
        mov     ebx, [ebx+HPET_COUNTER]
 
        rdtsc
        mov     ecx, 1000
        sub     eax, [hpet_tsc_start]
        sbb     edx, [hpet_tsc_start+4]
        shld    edx, eax, 10
        shl     eax, 10
        mov     esi, eax
        mov     eax, edx
        mul     ecx
        xchg    eax, esi
        mul     ecx
        adc     edx, esi
        div     ebx
        mul     ecx
        div     [hpet_period]
        mul     ecx
        DEBUGF  1, "K : cpu frequency %u Hz\n", eax
        jmp     .next
@@:
        rdtsc
        mov     ecx, eax
        mov     esi, 250            ; wait 1/4 a second
        call    delay_ms
        rdtsc
 
        sub     eax, ecx
        xor     edx, edx
        shld    edx, eax, 2
        shl     eax, 2
.next:
        mov     dword [cpu_freq], eax
        mov     dword [cpu_freq+4], edx
        mov     ebx, 1000000
        div     ebx
        mov     ebx, eax
 
        movzx   ecx, word [boot_y]
        if lang eq ru
        add     ecx, (10+19*6) shl 16 - 10
        else if lang eq sp
        add     ecx, (10+25*6) shl 16 - 10
        else
        add     ecx, (10+17*6) shl 16 - 10
        end if
 
        mov     edx, 0xFFFFFF
        xor     edi, edi
        mov     eax, 0x00040000
        inc     edi
        call    display_number_force
 
; SET VARIABLES
 
        call    set_variables
 
; STACK AND FDC
 
        call    stack_init
        call    fdc_init
 
; PALETTE FOR 320x200 and 640x480 16 col
 
        cmp     [SCR_MODE], word 0x12
        jne     no_pal_vga
        mov     esi, boot_pal_vga
        call    boot_log
        call    paletteVGA
      no_pal_vga:
 
        cmp     [SCR_MODE], word 0x13
        jne     no_pal_ega
        mov     esi, boot_pal_ega
        call    boot_log
        call    palette320x200
      no_pal_ega:
 
; LOAD DEFAULT SKIN
 
        call    load_default_skin
 
; Protect I/O permission map
 
        mov     esi, [default_io_map]
        stdcall map_page, esi, [SLOT_BASE+sizeof.APPDATA+APPDATA.io_map], PG_READ
        add     esi, 0x1000
        stdcall map_page, esi, [SLOT_BASE+sizeof.APPDATA+APPDATA.io_map+4], PG_READ
 
        stdcall map_page, tss._io_map_0, \
                [SLOT_BASE+sizeof.APPDATA+APPDATA.io_map], PG_READ
        stdcall map_page, tss._io_map_1, \
                [SLOT_BASE+sizeof.APPDATA+APPDATA.io_map+4], PG_READ
 
; SET KEYBOARD PARAMETERS
        mov     al, 0xf6       ; reset keyboard, scan enabled
        call    kb_write_wait_ack
        test    ah, ah
        jnz     .no_keyboard
 
iglobal
align 4
ps2_keyboard_functions:
        dd      .end - $
        dd      0       ; no close
        dd      ps2_set_lights
.end:
endg
        stdcall register_keyboard, ps2_keyboard_functions, 0
       ; mov   al, 0xED       ; Keyboard LEDs - only for testing!
       ; call  kb_write_wait_ack
       ; mov   al, 111b
       ; call  kb_write_wait_ack
 
        mov     al, 0xF3     ; set repeat rate & delay
        call    kb_write_wait_ack
        mov     al, 0; 30 250 ;00100010b ; 24 500  ;00100100b  ; 20 500
        call    kb_write_wait_ack
     ;// mike.dld [
        call    set_lights
     ;// mike.dld ]
        stdcall attach_int_handler, 1, irq1, 0
        DEBUGF  1, "K : IRQ1 return code %x\n", eax
.no_keyboard:
 
; Load PS/2 mouse driver
 
        stdcall load_pe_driver, szPS2MDriver, 0
 
        mov     esi, boot_setmouse
        call    boot_log
        call    setmouse
 
; LOAD FIRST APPLICATION
        cmp     byte [launcher_start], 1        ; Check if starting LAUNCHER is selected on blue screen (1 = yes)
        jnz     first_app_found
 
        cli
        mov     ebp, firstapp
        call    fs_execute_from_sysdir
        test    eax, eax
        jns     first_app_found
 
        mov     esi, boot_failed
        call    boot_log
 
        mov     eax, 0xDEADBEEF      ; otherwise halt
        hlt
 
first_app_found:
 
; START MULTITASKING
preboot_blogesc = 0       ; start immediately after bootlog
 
; A 'All set - press ESC to start' messages if need
if preboot_blogesc
        mov     esi, boot_tasking
        call    boot_log
.bll1:
        in      al, 0x60        ; wait for ESC key press
        cmp     al, 129
        jne     .bll1
end if
 
        mov     [timer_ticks_enable], 1         ; for cd driver
 
        sti
 
        call    mtrr_validate
 
        jmp     osloop
 
 
        ; Fly :)
 
uglobal
align 4
ap_initialized  dd      0
endg
 
ap_init_high:
        mov     ax, os_stack
        mov     bx, app_data
        mov     cx, app_tls
        mov     ss, ax
        mov     ds, bx
        mov     es, bx
        mov     fs, cx
        mov     gs, bx
        xor     esp, esp
        mov     eax, sys_proc-OS_BASE+PROC.pdt_0
        mov     cr3, eax
        lock inc [ap_initialized]
        jmp     idle_loop
 
 
include 'unpacker.inc'
 
align 4
boot_log:
        pushad
 
        mov     ebx, 10*65536
        mov     bx, word [boot_y]
        add     [boot_y], dword 10
        mov     ecx, 0x80ffffff; ASCIIZ string with white color
        xor     edi, edi
        mov     edx, esi
        inc     edi
        call    dtext
 
        mov     [novesachecksum], 1000
        call    checkVga_N13
 
        popad
 
        ret
 
;-----------------------------------------------------------------------------
; Register ramdisk file system
register_ramdisk:
        mov     esi, boot_initramdisk
        call    boot_log
        call    ramdisk_init
        ret
 
; in: edx -> APPDATA for OS/IDLE slot
; in: ebx = stack base
proc setup_os_slot
        xor     eax, eax
        mov     ecx, sizeof.APPDATA/4
        mov     edi, edx
        rep stosd
 
        mov     eax, tss+0x80
        call    get_pg_addr
        inc     eax
        mov     [edx+APPDATA.io_map], eax
        mov     eax, tss+0x1080
        call    get_pg_addr
        inc     eax
        mov     [edx+APPDATA.io_map+4], eax
 
        mov     dword [edx+APPDATA.pl0_stack], ebx
        lea     edi, [ebx+RING0_STACK_SIZE]
        mov     dword [edx+APPDATA.fpu_state], edi
        mov     dword [edx+APPDATA.saved_esp0], edi
        mov     dword [edx+APPDATA.saved_esp], edi
        mov     dword [edx+APPDATA.terminate_protection], 1 ; make unkillable
 
        mov     esi, fpu_data
        mov     ecx, [xsave_area_size]
        add     ecx, 3
        shr     ecx, 2
        rep movsd
 
        lea     eax, [edx+APP_EV_OFFSET]
        mov     dword [edx+APPDATA.fd_ev], eax
        mov     dword [edx+APPDATA.bk_ev], eax
 
        lea     eax, [edx+APP_OBJ_OFFSET]
        mov     dword [edx+APPDATA.fd_obj], eax
        mov     dword [edx+APPDATA.bk_obj], eax
 
        mov     dword [edx+APPDATA.cur_dir], sysdir_path-2
 
        mov     [edx + APPDATA.process], sys_proc
 
        lea     ebx, [edx+APPDATA.list]
        lea     ecx, [sys_proc+PROC.thr_list]
        list_add_tail ebx, ecx
 
        mov     eax, edx
        shr     eax, 3
        add     eax, CURRENT_TASK - (SLOT_BASE shr 3)
        mov     [eax+TASKDATA.wnd_number], dh
        mov     byte [eax+TASKDATA.pid], dh
 
        ret
endp
 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;                                                                    ;
;                    MAIN OS LOOP START                              ;
;                                                                    ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
align 32
osloop:
        mov     edx, osloop_has_work?
        xor     ecx, ecx
        call    Wait_events
        xor     eax, eax
        xchg    eax, [osloop_nonperiodic_work]
        test    eax, eax
        jz      .no_periodic
 
        call    __sys_draw_pointer
        call    window_check_events
        call    mouse_check_events
        call    checkmisc
        call    checkVga_N13
;--------------------------------------
.no_periodic:
        call    stack_handler
        call    check_fdd_motor_status
        call    check_ATAPI_device_event
        call    check_lights_state
        call    check_timers
 
        jmp     osloop
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;                                                                    ;
;                      MAIN OS LOOP END                              ;
;                                                                    ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
proc osloop_has_work?
        cmp     [osloop_nonperiodic_work], 0
        jnz     .yes
        call    stack_handler_has_work?
        jnz     .yes
        call    check_fdd_motor_status_has_work?
        jnz     .yes
        call    check_ATAPI_device_event_has_work?
        jnz     .yes
        call    check_lights_state_has_work?
        jnz     .yes
        call    check_timers_has_work?
        jnz     .yes
.no:
        xor     eax, eax
        ret
.yes:
        xor     eax, eax
        inc     eax
        ret
endp
 
proc wakeup_osloop
        mov     [osloop_nonperiodic_work], 1
        ret
endp
 
uglobal
align 4
osloop_nonperiodic_work dd      ?
endg
 
uglobal
align 64
idle_addr       rb      64
endg
 
idle_thread:
        sti
 
; The following code can be executed by all CPUs in the system.
; All other parts of the kernel do not expect multi-CPU.
; Also, APs don't even have a stack here.
; Beware. Don't do anything here. Anything at all.
idle_loop:
        cmp     [use_mwait_for_idle], 0
        jnz     idle_loop_mwait
 
idle_loop_hlt:
        hlt
        jmp     idle_loop_hlt
 
idle_loop_mwait:
        mov     eax, idle_addr
        xor     ecx, ecx
        xor     edx, edx
        monitor
        xor     ecx, ecx
        mov     eax, 20h        ; or 10h
        mwait
        jmp     idle_loop_mwait
 
 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;                                                                      ;
;                   INCLUDED SYSTEM FILES                              ;
;                                                                      ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
 
include "kernel32.inc"
 
 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;                                                                      ;
;                       KERNEL FUNCTIONS                               ;
;                                                                      ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
reserve_irqs_ports:
 
 
; RESERVE PORTS
        mov     eax, RESERVED_PORTS
        mov     ecx, 1
 
        mov     [eax], dword 4
 
        mov     [eax+16], ecx
        mov     [eax+16+4], dword 0
        mov     [eax+16+8], dword 0x2D
 
        mov     [eax+32], ecx
        mov     [eax+32+4], dword 0x30
        mov     [eax+32+8], dword 0x4D
 
        mov     [eax+48], ecx
        mov     [eax+48+4], dword 0x50
        mov     [eax+48+8], dword 0xDF
 
        mov     [eax+64], ecx
        mov     [eax+64+4], dword 0xE5
        mov     [eax+64+8], dword 0xFF
 
        ret
 
 
iglobal
  process_number dd 0x2
endg
 
set_variables:
 
        mov     ecx, 0x16                    ; flush port 0x60
.fl60:
        in      al, 0x60
        loop    .fl60
        push    eax
 
        mov     ax, [BOOT.y_res]
        shr     ax, 1
        shl     eax, 16
        mov     ax, [BOOT.x_res]
        shr     ax, 1
        mov     [MOUSE_X], eax
        call    wakeup_osloop
 
        xor     eax, eax
        mov     [BTN_ADDR], dword BUTTON_INFO ; address of button list
 
        mov     byte [KEY_COUNT], al              ; keyboard buffer
        mov     byte [BTN_COUNT], al              ; button buffer
;        mov   [MOUSE_X],dword 100*65536+100    ; mouse x/y
 
        pop     eax
        ret
 
align 4
;input  eax=43,bl-byte of output, ecx - number of port
sys_outport:
 
        mov     edi, ecx   ; separate flag for read / write
        and     ecx, 65535
 
        mov     eax, [RESERVED_PORTS]
        test    eax, eax
        jnz     .sopl8
        inc     eax
        mov     [esp+32], eax
        ret
 
  .sopl8:
        mov     edx, [TASK_BASE]
        mov     edx, [edx+0x4]
    ;and   ecx,65535
    ;cld - set on interrupt 0x40
  .sopl1:
 
        mov     esi, eax
        shl     esi, 4
        add     esi, RESERVED_PORTS
        cmp     edx, [esi+0]
        jne     .sopl2
        cmp     ecx, [esi+4]
        jb      .sopl2
        cmp     ecx, [esi+8]
        jg      .sopl2
.sopl3:
 
        test    edi, 0x80000000; read ?
        jnz     .sopl4
 
        mov     eax, ebx
        mov     dx, cx   ; write
        out     dx, al
        and     [esp+32], dword 0
        ret
 
        .sopl2:
 
        dec     eax
        jnz     .sopl1
        inc     eax
        mov     [esp+32], eax
        ret
 
 
  .sopl4:
 
        mov     dx, cx   ; read
        in      al, dx
        and     eax, 0xff
        and     [esp+32], dword 0
        mov     [esp+20], eax
        ret
 
display_number:
;It is not optimization
        mov     eax, ebx
        mov     ebx, ecx
        mov     ecx, edx
        mov     edx, esi
        mov     esi, edi
; eax = print type, al=0 -> ebx is number
;                   al=1 -> ebx is pointer
;                   ah=0 -> display decimal
;                   ah=1 -> display hexadecimal
;                   ah=2 -> display binary
;                   eax bits 16-21 = number of digits to display (0-32)
;                   eax bits 22-31 = reserved
;
; ebx = number or pointer
; ecx = x shl 16 + y
; edx = color
        xor     edi, edi
display_number_force:
        push    eax
        and     eax, 0x3fffffff
        cmp     eax, 0xffff     ; length > 0 ?
        pop     eax
        jge     cont_displ
        ret
   cont_displ:
        push    eax
        and     eax, 0x3fffffff
        cmp     eax, 61*0x10000  ; length <= 60 ?
        pop     eax
        jb      cont_displ2
        ret
   cont_displ2:
 
        pushad
 
        cmp     al, 1            ; ecx is a pointer ?
        jne     displnl1
        mov     ebp, ebx
        add     ebp, 4
        mov     ebp, [ebp+std_application_base_address]
        mov     ebx, [ebx+std_application_base_address]
 displnl1:
        sub     esp, 64
 
        test    ah, ah            ; DECIMAL
        jnz     no_display_desnum
        shr     eax, 16
        and     eax, 0xC03f
;     and   eax,0x3f
        push    eax
        and     eax, 0x3f
        mov     edi, esp
        add     edi, 4+64-1
        mov     ecx, eax
        mov     eax, ebx
        mov     ebx, 10
 d_desnum:
        xor     edx, edx
        call    division_64_bits
        div     ebx
        add     dl, 48
        mov     [edi], dl
        dec     edi
        loop    d_desnum
        pop     eax
        call    normalize_number
        call    draw_num_text
        add     esp, 64
        popad
        ret
   no_display_desnum:
 
        cmp     ah, 0x01         ; HEXADECIMAL
        jne     no_display_hexnum
        shr     eax, 16
        and     eax, 0xC03f
;     and   eax,0x3f
        push    eax
        and     eax, 0x3f
        mov     edi, esp
        add     edi, 4+64-1
        mov     ecx, eax
        mov     eax, ebx
        mov     ebx, 16
   d_hexnum:
        xor     edx, edx
        call    division_64_bits
        div     ebx
   hexletters = __fdo_hexdigits
        add     edx, hexletters
        mov     dl, [edx]
        mov     [edi], dl
        dec     edi
        loop    d_hexnum
        pop     eax
        call    normalize_number
        call    draw_num_text
        add     esp, 64
        popad
        ret
   no_display_hexnum:
 
        cmp     ah, 0x02         ; BINARY
        jne     no_display_binnum
        shr     eax, 16
        and     eax, 0xC03f
;     and   eax,0x3f
        push    eax
        and     eax, 0x3f
        mov     edi, esp
        add     edi, 4+64-1
        mov     ecx, eax
        mov     eax, ebx
        mov     ebx, 2
   d_binnum:
        xor     edx, edx
        call    division_64_bits
        div     ebx
        add     dl, 48
        mov     [edi], dl
        dec     edi
        loop    d_binnum
        pop     eax
        call    normalize_number
        call    draw_num_text
        add     esp, 64
        popad
        ret
   no_display_binnum:
 
        add     esp, 64
        popad
        ret
 
normalize_number:
        test    ah, 0x80
        jz      .continue
        mov     ecx, 48
        and     eax, 0x3f
@@:
        inc     edi
        cmp     [edi], cl
        jne     .continue
        dec     eax
        cmp     eax, 1
        ja      @r
        mov     al, 1
.continue:
        and     eax, 0x3f
        ret
 
division_64_bits:
        test    [esp+1+4], byte 0x40
        jz      .continue
        push    eax
        mov     eax, ebp
        div     ebx
        mov     ebp, eax
        pop     eax
.continue:
        ret
 
draw_num_text:
        mov     esi, eax
        mov     edx, 64+4
        sub     edx, eax
        add     edx, esp
        mov     ebx, [esp+64+32-8+4]
; add window start x & y
        mov     ecx, [TASK_BASE]
 
        mov     edi, [CURRENT_TASK]
        shl     edi, 8
 
        mov     eax, [ecx-twdw+WDATA.box.left]
        add     eax, [edi+SLOT_BASE+APPDATA.wnd_clientbox.left]
        shl     eax, 16
        add     eax, [ecx-twdw+WDATA.box.top]
        add     eax, [edi+SLOT_BASE+APPDATA.wnd_clientbox.top]
        add     ebx, eax
        mov     ecx, [esp+64+32-12+4]
        mov     eax, [esp+64+8]         ; background color (if given)
        mov     edi, [esp+64+4]
        and     ecx, 5FFFFFFFh
        bt      ecx, 27
        jnc     @f
        mov     edi, eax
@@:
        jmp     dtext
;-----------------------------------------------------------------------------
iglobal
midi_base dw 0
endg
;-----------------------------------------------------------------------------
align 4
sys_setup:
;  1 = roland mpu midi base , base io address
;  2 = keyboard   1, base kaybap 2, shift keymap, 9 country 1eng 2fi 3ger 4rus
;  3 = not used
;  4 = not used
;  5 = system language, 1eng 2fi 3ger 4rus
;  6 = not used
;  7 = not used
;  8 = not used
;  9 = not used
; 10 = not used
; 11 = enable lba read
; 12 = enable pci access
;-----------------------------------------------------------------------------
        and     [esp+32], dword 0
; F.21.1 - set MPU MIDI base port
        dec     ebx
        jnz     @f
 
        cmp     ecx, 0x100
        jb      @f
 
        mov     esi, 65535
        cmp     esi, ecx
        jb      @f
 
        mov     [midi_base], cx
        mov     word [mididp], cx
        inc     cx
        mov     word [midisp], cx
        ret
;--------------------------------------
@@:
; F.21.2 - set keyboard layout
        dec     ebx
        jnz     @f
 
        mov     edi, [TASK_BASE]
        mov     eax, [edi+TASKDATA.mem_start]
        add     eax, edx
; 1 = normal layout
        dec     ecx
        jnz     .shift
 
        mov     ebx, keymap
        mov     ecx, 128
        call    memmove
        ret
;--------------------------------------
.shift:
; 2 = layout at pressed Shift
        dec     ecx
        jnz     .alt
 
        mov     ebx, keymap_shift
        mov     ecx, 128
        call    memmove
        ret
;--------------------------------------
.alt:
; 3 = layout at pressed Alt
        dec     ecx
        jnz     .country
 
        mov     ebx, keymap_alt
        mov     ecx, 128
        call    memmove
        ret
;--------------------------------------
.country:
; country identifier
        sub     ecx, 6
        jnz     .error
 
        mov     word [keyboard], dx
        ret
;--------------------------------------
@@:
; F.21.5 - set system language
        sub     ebx, 3
        jnz     @f
 
        mov     [syslang], ecx
        ret
;--------------------------------------
@@:
; F.21.11 - enable/disable low-level access to HD
        and     ecx, 1
        sub     ebx, 6
        jnz     @f
 
        mov     [lba_read_enabled], ecx
        ret
;--------------------------------------
@@:
; F.21.12 - enable/disable low-level access to PCI
        dec     ebx
        jnz     .error
 
        mov     [pci_access_enabled], ecx
        ret
;--------------------------------------
.error:
        or      [esp+32], dword -1
        ret
;-----------------------------------------------------------------------------
align 4
sys_getsetup:
;  1 = roland mpu midi base , base io address
;  2 = keyboard   1, base kaybap 2, shift keymap, 9 country 1eng 2fi 3ger 4rus
;  3 = not used
;  4 = not used
;  5 = system language, 1eng 2fi 3ger 4rus
;  6 = not used
;  7 = not used
;  8 = not used
;  9 = get hs timer tic
; 10 = not used
; 11 = get the state "lba read"
; 12 = get the state "pci access"
;-----------------------------------------------------------------------------
; F.26.1 - get MPU MIDI base port
        dec     ebx
        jnz     @f
 
        movzx   eax, [midi_base]
        mov     [esp+32], eax
        ret
;--------------------------------------
@@:
; F.26.2 - get keyboard layout
        dec     ebx
        jnz     @f
 
        mov     edi, [TASK_BASE]
        mov     ebx, [edi+TASKDATA.mem_start]
        add     ebx, edx
; 1 = normal layout
        dec     ecx
        jnz     .shift
 
        ; if given memory address belongs to kernel then error
        push    ebx 
        mov     eax, ebx
        mov     ebx, 128
        call    is_region_userspace
        pop     ebx
        test    eax, eax
        jz      .addr_error
 
        mov     eax, keymap
        mov     ecx, 128
        call    memmove
        ret
;--------------------------------------
.shift:
; 2 = layout with pressed Shift
        dec     ecx
        jnz     .alt
 
        push    ebx 
        mov     eax, ebx
        mov     ebx, 128
        call    is_region_userspace
        pop     ebx
        test    eax, eax
        jz      .addr_error
 
        mov     eax, keymap_shift
        mov     ecx, 128
        call    memmove
        ret
;--------------------------------------
.alt:
; 3 = layout with pressed Alt
        dec     ecx
        jne     .country
 
        push    ebx 
        mov     eax, ebx
        mov     ebx, 128
        call    is_region_userspace
        pop     ebx
        test    eax, eax
        jz      .addr_error
 
        mov     eax, keymap_alt
        mov     ecx, 128
        call    memmove
        ret
;--------------------------------------
.country:
; 9 = country identifier
        sub     ecx, 6
        jnz     .error
 
        movzx   eax, word [keyboard]
        mov     [esp+32], eax
        ret
 
.addr_error:    ; if given memory address is illegal
        mov     dword [esp+32], -1
        ret        
;--------------------------------------
@@:
; F.26.5 - get system language
        sub     ebx, 3
        jnz     @f
 
        mov     eax, [syslang]
        mov     [esp+32], eax
        ret
;--------------------------------------
@@:
; F.26.9 - get the value of the time counter
        sub     ebx, 4
        jnz     @f
 
        mov     eax, [timer_ticks]
        mov     [esp+32], eax
        ret
;--------------------------------------
@@:
; F.26.10 - get the time from kernel launch in nanoseconds
        sub     ebx, 1
        jnz     @f
 
        call    get_clock_ns
        mov     [esp+24], edx
        mov     [esp+32], eax
        ret
;--------------------------------------
@@:
; F.26.11 - Find out whether low-level HD access is enabled
        sub     ebx, 1
        jnz     @f
 
        mov     eax, [lba_read_enabled]
        mov     [esp+32], eax
        ret
;--------------------------------------
@@:
; F.26.12 - Find out whether low-level PCI access is enabled
        dec     ebx
        jnz     .error
 
        mov     eax, [pci_access_enabled]
        mov     [esp+32], eax
        ret
;--------------------------------------
.error:
        or      [esp+32], dword -1
        ret
;-----------------------------------------------------------------------------
get_timer_ticks:
        mov     eax, [timer_ticks]
        ret
;-----------------------------------------------------------------------------
readmousepos:
; eax=0 screen relative
; eax=1 window relative
; eax=2 buttons pressed
; eax=3 buttons pressed ext
; eax=4 load cursor
; eax=5 set cursor
; eax=6 delete cursor
; eax=7 get mouse_z
; eax=8 load cursor unicode
        cmp     ebx, 8
        ja      @f
        jmp     dword[.mousefn+ebx*4]
 
align 4
.mousefn:
dd  .msscreen
dd  .mswin
dd  .msbutton
dd  .msbuttonExt
dd  .app_load_cursor
dd  .app_set_cursor
dd  .app_delete_cursor
dd  .msz
dd  .loadCursorUni
 
.msscreen:
        mov     eax, [MOUSE_X]
        shl     eax, 16
        mov     ax, [MOUSE_Y]
        mov     [esp+36-4], eax
@@:
        ret
 
.mswin:
        mov     eax, [MOUSE_X]
        shl     eax, 16
        mov     ax, [MOUSE_Y]
        mov     esi, [TASK_BASE]
        mov     bx, word [esi-twdw+WDATA.box.left]
        shl     ebx, 16
        mov     bx, word [esi-twdw+WDATA.box.top]
        sub     eax, ebx
        mov     edi, [CURRENT_TASK]
        shl     edi, 8
        sub     ax, word[edi+SLOT_BASE+APPDATA.wnd_clientbox.top]
        rol     eax, 16
        sub     ax, word[edi+SLOT_BASE+APPDATA.wnd_clientbox.left]
        rol     eax, 16
        mov     [esp+36-4], eax
        ret
 
.msbutton:
        movzx   eax, byte [BTN_DOWN]
        mov     [esp+36-4], eax
        ret
 
.msbuttonExt:
        mov     eax, [BTN_DOWN]
        mov     [esp+36-4], eax
        ret
 
.app_load_cursor:
        cmp     ecx, OS_BASE
        jae     @f
        stdcall load_cursor, ecx, edx
        mov     [esp+36-4], eax
@@:
        ret
 
.loadCursorUni:
        cmp     ecx, OS_BASE
        jae     @b
        push    ecx edx
        stdcall kernel_alloc, maxPathLength
        mov     edi, eax
        pop     eax esi
        push    edi
        call    getFullPath
        pop     ebp
        test    eax, eax
        jz      @f
        stdcall load_cursor, ebp, LOAD_FROM_FILE
        mov     [esp+32], eax
@@:
        stdcall kernel_free, ebp
        ret
 
.app_set_cursor:
        stdcall set_cursor, ecx
        mov     [esp+36-4], eax
        ret
 
.app_delete_cursor:
        stdcall delete_cursor, ecx
        mov     [esp+36-4], eax
        ret
 
.msz:
        mov     edi, [TASK_COUNT]
        movzx   edi, word [WIN_POS + edi*2]
        cmp     edi, [CURRENT_TASK]
        jne     @f
        mov     ax, [MOUSE_SCROLL_H]
        shl     eax, 16
        mov     ax, [MOUSE_SCROLL_V]
        mov     [esp+36-4], eax
        and     [MOUSE_SCROLL_H], word 0
        and     [MOUSE_SCROLL_V], word 0
        ret
@@:
        and     [esp+36-4], dword 0
        ret
 
is_input:
 
        push    edx
        mov     dx, word [midisp]
        in      al, dx
        and     al, 0x80
        pop     edx
        ret
 
is_output:
 
        push    edx
        mov     dx, word [midisp]
        in      al, dx
        and     al, 0x40
        pop     edx
        ret
 
 
get_mpu_in:
 
        push    edx
        mov     dx, word [mididp]
        in      al, dx
        pop     edx
        ret
 
 
put_mpu_out:
 
        push    edx
        mov     dx, word [mididp]
        out     dx, al
        pop     edx
        ret
 
 
 
align 4
 
sys_midi:
        cmp     [mididp], 0
        jnz     sm0
        mov     [esp+36], dword 1
        ret
sm0:
        and     [esp+36], dword 0
        dec     ebx
        jnz     smn1
 ;    call setuart
su1:
        call    is_output
        test    al, al
        jnz     su1
        mov     dx, word [midisp]
        mov     al, 0xff
        out     dx, al
su2:
        mov     dx, word [midisp]
        mov     al, 0xff
        out     dx, al
        call    is_input
        test    al, al
        jnz     su2
        call    get_mpu_in
        cmp     al, 0xfe
        jnz     su2
su3:
        call    is_output
        test    al, al
        jnz     su3
        mov     dx, word [midisp]
        mov     al, 0x3f
        out     dx, al
        ret
smn1:
        dec     ebx
        jnz     smn2
sm10:
        call    get_mpu_in
        call    is_output
        test    al, al
        jnz     sm10
        mov     al, bl
        call    put_mpu_out
        smn2:
        ret
 
detect_devices:
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
;include 'detect/commouse.inc'
;include 'detect/ps2mouse.inc'
;include 'detect/dev_fd.inc'
;include 'detect/dev_hdcd.inc'
;include 'detect/sear_par.inc'
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
        ret
 
sys_end:
;--------------------------------------
        cmp     [_display.select_cursor], 0
        je      @f
; restore default cursor before killing
        pusha
        mov     ecx, [current_slot]
        call    restore_default_cursor_before_killing
        popa
@@:
;--------------------------------------
; kill all sockets this process owns
        pusha
        mov     edx, [TASK_BASE]
        mov     edx, [edx+TASKDATA.pid]
        call    socket_process_end
        popa
;--------------------------------------
        mov     ecx, [current_slot]
        mov     eax, [ecx+APPDATA.tls_base]
        test    eax, eax
        jz      @F
 
        stdcall user_free, eax
@@:
 
        mov     eax, [TASK_BASE]
        mov     [eax+TASKDATA.state], TSTATE_ZOMBIE
        call    wakeup_osloop
 
.waitterm:            ; wait here for termination
        call    change_task
        jmp     .waitterm
;------------------------------------------------------------------------------
align 4
restore_default_cursor_before_killing:
        pushfd
        cli
        mov     eax, [def_cursor]
        mov     [ecx+APPDATA.cursor], eax
 
        movzx   eax, word [MOUSE_Y]
        movzx   ebx, word [MOUSE_X]
        mov     eax, [d_width_calc_area + eax*4]
 
        add     eax, [_display.win_map]
        movzx   edx, byte [ebx+eax]
        shl     edx, 8
        mov     esi, [edx+SLOT_BASE+APPDATA.cursor]
 
        cmp     esi, [current_cursor]
        je      @f
 
        push    esi
        call    [_display.select_cursor]
        mov     [current_cursor], esi
@@:
        mov     [redrawmouse_unconditional], 1
        call    wakeup_osloop
        popfd
        ret
;------------------------------------------------------------------------------
iglobal
align 4
sys_system_table:
        dd      sysfn_deactivate        ; 1 = deactivate window
        dd      sysfn_terminate         ; 2 = terminate thread
        dd      sysfn_activate          ; 3 = activate window
        dd      sysfn_getidletime       ; 4 = get idle time
        dd      sysfn_getcpuclock       ; 5 = get cpu clock
        dd      sysfn_saveramdisk       ; 6 = save ramdisk
        dd      sysfn_getactive         ; 7 = get active window
        dd      sysfn_sound_flag        ; 8 = get/set sound_flag
        dd      sysfn_shutdown          ; 9 = shutdown with parameter
        dd      sysfn_minimize          ; 10 = minimize window
        dd      sysfn_getdiskinfo       ; 11 = get disk subsystem info
        dd      sysfn_lastkey           ; 12 = get last pressed key
        dd      sysfn_getversion        ; 13 = get kernel version
        dd      sysfn_waitretrace       ; 14 = wait retrace
        dd      sysfn_centermouse       ; 15 = center mouse cursor
        dd      sysfn_getfreemem        ; 16 = get free memory size
        dd      sysfn_getallmem         ; 17 = get total memory size
        dd      sysfn_terminate2        ; 18 = terminate thread using PID
                                        ;                 instead of slot
        dd      sysfn_mouse_acceleration; 19 = set/get mouse acceleration
        dd      sysfn_meminfo           ; 20 = get extended memory info
        dd      sysfn_pid_to_slot       ; 21 = get slot number for pid
        dd      sysfn_min_rest_window   ; 22 = minimize and restore any window
        dd      sysfn_min_windows       ; 23 = minimize all windows
        dd      sysfn_set_screen_sizes  ; 24 = set screen sizes for Vesa
 
        dd      sysfn_zmodif            ; 25 = get/set window z modifier  ;Fantomer
sysfn_num = ($ - sys_system_table)/4
endg
;------------------------------------------------------------------------------
sys_system:
        dec     ebx
        cmp     ebx, sysfn_num
        jae     @f
        jmp     dword [sys_system_table + ebx*4]
@@:
        ret
;------------------------------------------------------------------------------
sysfn_shutdown:          ; 18.9 = system shutdown
        cmp     ecx, SYSTEM_SHUTDOWN
        jl      exit_for_anyone
        cmp     ecx, SYSTEM_RESTART
        jg      exit_for_anyone
        mov     [BOOT.shutdown_type], cl
 
        mov     eax, [TASK_COUNT]
        mov     [SYS_SHUTDOWN], al
        mov     [shutdown_processes], eax
        call    wakeup_osloop
        and     dword [esp+32], 0
 exit_for_anyone:
        ret
  uglobal
   shutdown_processes:
                       dd 0x0
  endg
;------------------------------------------------------------------------------
sysfn_terminate:        ; 18.2 = TERMINATE
        push    ecx
        cmp     ecx, 2
        jb      noprocessterminate
        mov     edx, [TASK_COUNT]
        cmp     ecx, edx
        ja      noprocessterminate
        mov     eax, [TASK_COUNT]
        shl     ecx, 5
        mov     edx, [ecx+CURRENT_TASK+TASKDATA.pid]
        add     ecx, CURRENT_TASK+TASKDATA.state
        cmp     byte [ecx], 9
        jz      noprocessterminate
        push    ecx edx
        lea     edx, [(ecx-(CURRENT_TASK and 1FFFFFFFh)-TASKDATA.state)*8+SLOT_BASE]
        call    request_terminate
        pop     edx ecx
        test    eax, eax
        jz      noprocessterminate
;--------------------------------------
; terminate all network sockets it used
        pusha
        mov     eax, edx
        call    socket_process_end
        popa
;--------------------------------------
        cmp     [_display.select_cursor], 0
        je      .restore_end
; restore default cursor before killing
        pusha
        mov     ecx, [esp+32]
        shl     ecx, 8
        add     ecx, SLOT_BASE
        mov     eax, [def_cursor]
        cmp     [ecx+APPDATA.cursor], eax
        je      @f
        call    restore_default_cursor_before_killing
@@:
        popa
.restore_end:
;--------------------------------------
     ;call MEM_Heap_Lock      ;guarantee that process isn't working with heap
        mov     [ecx], byte 3; clear possible i40's
        call    wakeup_osloop
     ;call MEM_Heap_UnLock
 
        cmp     edx, [application_table_owner]; clear app table stat
        jne     noatsc
        call    unlock_application_table
noatsc:
noprocessterminate:
        add     esp, 4
        ret
;------------------------------------------------------------------------------
sysfn_terminate2:
;lock application_table_status mutex
.table_status:
        call    lock_application_table
        mov     eax, ecx
        call    pid_to_slot
        test    eax, eax
        jz      .not_found
        mov     ecx, eax
        cli
        call    sysfn_terminate
        call    unlock_application_table
        sti
        and     dword [esp+32], 0
        ret
.not_found:
        call    unlock_application_table
        or      dword [esp+32], -1
        ret
;------------------------------------------------------------------------------
sysfn_deactivate:         ; 18.1 = DEACTIVATE WINDOW
        cmp     ecx, 2
        jb      .nowindowdeactivate
        cmp     ecx, [TASK_COUNT]
        ja      .nowindowdeactivate
 
        movzx   esi, word [WIN_STACK + ecx*2]
        cmp     esi, 1
        je      .nowindowdeactivate ; already deactive
 
        mov     edi, ecx
        shl     edi, 5
        add     edi, window_data
        movzx   esi, word [WIN_STACK + ecx * 2]
        lea     esi, [WIN_POS + esi * 2]
        call    window._.window_deactivate
        call    syscall_display_settings.calculateScreen
        call    syscall_display_settings.redrawScreen
.nowindowdeactivate:
        ret
;------------------------------------------------------------------------------
sysfn_activate:         ; 18.3 = ACTIVATE WINDOW
        cmp     ecx, 2
        jb      .nowindowactivate
        cmp     ecx, [TASK_COUNT]
        ja      .nowindowactivate
;-------------------------------------
@@:
; If the window is captured and moved by the user,
; then you can't change the position in window stack!!!
        mov     al, [mouse.active_sys_window.action]
        and     al, WINDOW_MOVE_AND_RESIZE_FLAGS
        test    al, al
        jz      @f
        call    change_task
        jmp     @b
@@:
;-------------------------------------
        mov     [window_minimize], 2; restore window if minimized
        call    wakeup_osloop
 
        movzx   esi, word [WIN_STACK + ecx*2]
        cmp     esi, [TASK_COUNT]
        je      .nowindowactivate; already active
 
        mov     edi, ecx
        shl     edi, 5
        add     edi, window_data
        movzx   esi, word [WIN_STACK + ecx * 2]
        lea     esi, [WIN_POS + esi * 2]
        call    waredraw
.nowindowactivate:
        ret
;------------------------------------------------------------------------------
align 4
sysfn_zmodif:
;18,25,1 - get z_modif
;18,25,2 - set z_modif
;edx = -1(for current task) or TID
;esi(for 2) = new value z_modif
;return:
;1:   eax = z_modif
;2: eax=0(fail),1(success) for set z_modif
 
        cmp     edx, -1
        jne     @f
        mov     edx, [CURRENT_TASK]
     @@:
        cmp     edx, [TASK_COUNT]
        ja      .fail
        cmp     edx, 1
        je      .fail
 
        mov     eax, edx
        shl     edx, 5
 
        cmp     [edx + CURRENT_TASK + TASKDATA.state], 9
        je      .fail
 
        cmp     ecx, 1
        jnz     .set_zmod
 
        mov     al, [edx + window_data + WDATA.z_modif]
        jmp     .exit
 
.set_zmod:
        cmp     ecx, 2
        jnz     .fail
 
        mov     ebx, esi
        mov     esi, eax
 
        cmp     bl, ZPOS_ALWAYS_TOP
        jg      .fail
 
        mov     [edx + window_data + WDATA.z_modif], bl
 
        mov     eax, [edx + window_data + WDATA.box.left]
        mov     ebx, [edx + window_data + WDATA.box.top]
        mov     ecx, [edx + window_data + WDATA.box.width]
        mov     edx, [edx + window_data + WDATA.box.height]
        add     ecx, eax
        add     edx, ebx
        call    window._.set_screen
        call    window._.set_top_wnd
        call    window._.redraw_top_wnd
 
        shl     esi, 5
        mov     [esi + window_data + WDATA.fl_redraw], 1
 
 
        mov     eax, 1
        jmp     .exit
.fail:
        xor     eax, eax
.exit:
        mov     [esp+32], eax
        ret
 
;------------------------------------------------------------------------------
sysfn_getidletime:              ; 18.4 = GET IDLETIME
        mov     eax, [CURRENT_TASK+32+TASKDATA.cpu_usage]
        mov     [esp+32], eax
        ret
;------------------------------------------------------------------------------
sysfn_getcpuclock:              ; 18.5 = GET TSC/SEC
        mov     eax, dword [cpu_freq]
        mov     [esp+32], eax
        ret
;------------------------------------------------------------------------------
get_cpu_freq:
        mov     eax, dword [cpu_freq]
        mov     edx, dword [cpu_freq+4]
        ret
;  SAVE ramdisk to /hd/1/menuet.img
;!!!!!!!!!!!!!!!!!!!!!!!!
   include 'blkdev/rdsave.inc'
;!!!!!!!!!!!!!!!!!!!!!!!!
;------------------------------------------------------------------------------
align 4
sysfn_getactive:        ; 18.7 = get active window
        mov     eax, [TASK_COUNT]
        movzx   eax, word [WIN_POS + eax*2]
        mov     [esp+32], eax
        ret
;------------------------------------------------------------------------------
sysfn_sound_flag:       ; 18.8 = get/set sound_flag
;     cmp  ecx,1
        dec     ecx
        jnz     nogetsoundflag
        movzx   eax, byte [sound_flag]; get sound_flag
        mov     [esp+32], eax
        ret
 nogetsoundflag:
;     cmp  ecx,2
        dec     ecx
        jnz     nosoundflag
        xor     byte [sound_flag], 1
 nosoundflag:
        ret
;------------------------------------------------------------------------------
sysfn_minimize:         ; 18.10 = minimize window
        mov     [window_minimize], 1
        call    wakeup_osloop
        ret
;------------------------------------------------------------------------------
align 4
sysfn_getdiskinfo:      ; 18.11 = get disk info table
        dec     ecx
        jnz     .exit
.small_table:
        mov     edi, edx
        mov     esi, DRIVE_DATA
        mov     ecx, DRIVE_DATA_SIZE ;10
        cld
        rep movsb
.exit:
        ret
;------------------------------------------------------------------------------
sysfn_lastkey:          ; 18.12 = return 0 (backward compatibility)
        and     dword [esp+32], 0
        ret
;------------------------------------------------------------------------------
sysfn_getversion:       ; 18.13 = get kernel ID and version
        ; if given memory address belongs to kernel then error
        mov     eax, ecx
        mov     ebx, version_end-version_inf
        call    is_region_userspace
        test    eax, eax
        jz      .addr_error
 
        mov     edi, ecx
        mov     esi, version_inf
        mov     ecx, version_end-version_inf
        rep movsb
        ret
.addr_error:    ; if given memory address is illegal
        mov     dword [esp+32], -1
        ret   
;------------------------------------------------------------------------------
sysfn_waitretrace:     ; 18.14 = sys wait retrace
     ;wait retrace functions
 sys_wait_retrace:
        mov     edx, 0x3da
 WaitRetrace_loop:
        in      al, dx
        test    al, 1000b
        jz      WaitRetrace_loop
        and     [esp+32], dword 0
        ret
;------------------------------------------------------------------------------
align 4
sysfn_centermouse:      ; 18.15 = mouse centered
        mov     eax, [_display.width]
        shr     eax, 1
        mov     [MOUSE_X], ax
        mov     eax, [_display.height]
        shr     eax, 1
        mov     [MOUSE_Y], ax
        call    wakeup_osloop
        xor     eax, eax
        and     [esp+32], eax
        ret
;------------------------------------------------------------------------------
sysfn_mouse_acceleration:       ; 18.19 = set/get mouse features
        cmp     ecx, 8
        jnc     @f
        jmp     dword [.table+ecx*4]
.get_mouse_acceleration:
        xor     eax, eax
        mov     ax, [mouse_speed_factor]
        mov     [esp+32], eax
        ret
.set_mouse_acceleration:
        mov     [mouse_speed_factor], dx
        ret
.get_mouse_delay:
        xor     eax, eax
        mov     al, [mouse_delay]
        mov     [esp+32], eax
        ret
.set_mouse_delay:
        mov     [mouse_delay], dl
@@:
        ret
.set_pointer_position:
        cmp     dx, word[_display.height]
        jae     @b
        rol     edx, 16
        cmp     dx, word[_display.width]
        jae     @b
        mov     [MOUSE_X], edx
        mov     [mouse_active], 1
        jmp     wakeup_osloop
.set_mouse_button:
        mov     [BTN_DOWN], edx
        mov     [mouse_active], 1
        jmp     wakeup_osloop
.get_doubleclick_delay:
        xor     eax, eax
        mov     al, [mouse_doubleclick_delay]
        mov     [esp+32], eax
        ret
.set_doubleclick_delay:
        mov     [mouse_doubleclick_delay], dl
        ret
align 4
.table:
dd      .get_mouse_acceleration
dd      .set_mouse_acceleration
dd      .get_mouse_delay
dd      .set_mouse_delay
dd      .set_pointer_position
dd      .set_mouse_button
dd      .get_doubleclick_delay
dd      .set_doubleclick_delay
;------------------------------------------------------------------------------
sysfn_getfreemem:
        mov     eax, [pg_data.pages_free]
        shl     eax, 2
        mov     [esp+32], eax
        ret
;------------------------------------------------------------------------------
sysfn_getallmem:
        mov     eax, [MEM_AMOUNT]
        shr     eax, 10
        mov     [esp+32], eax
        ret
;------------------------------------------------------------------------------
sysfn_pid_to_slot:
        mov     eax, ecx
        call    pid_to_slot
        mov     [esp+32], eax
        ret
;------------------------------------------------------------------------------
sysfn_min_rest_window:
        pushad
        mov     eax, edx ; ebx - operating
        shr     ecx, 1
        jnc     @f
        call    pid_to_slot
@@:
        or      eax, eax ; eax - number of slot
        jz      .error
        cmp     eax, 255    ; varify maximal slot number
        ja      .error
        movzx   eax, word [WIN_STACK + eax*2]
        shr     ecx, 1
        jc      .restore
 ; .minimize:
        call    minimize_window
        jmp     .exit
.restore:
        call    restore_minimized_window
.exit:
        popad
        xor     eax, eax
        mov     [esp+32], eax
        ret
.error:
        popad
        xor     eax, eax
        dec     eax
        mov     [esp+32], eax
        ret
;------------------------------------------------------------------------------
sysfn_min_windows:
        call    minimize_all_window
        mov     [esp+32], eax
        call    change_task
        ret
;------------------------------------------------------------------------------
sysfn_set_screen_sizes:
        cmp     [SCR_MODE], word 0x13
        jbe     .exit
 
        cmp     [_display.select_cursor], select_cursor
        jne     .exit
 
        cmp     ecx, [display_width_standard]
        ja      .exit
 
        cmp     edx, [display_height_standard]
        ja      .exit
 
        pushfd
        cli
        mov     eax, ecx
        mov     ecx, [_display.lfb_pitch]
        mov     [_display.width], eax
        dec     eax
        mov     [_display.height], edx
        dec     edx
; eax - new Screen_Max_X
; edx - new Screen_Max_Y
        mov     [do_not_touch_winmap], 1
        call    set_screen
        mov     [do_not_touch_winmap], 0
        popfd
        call    change_task
.exit:
        ret
;------------------------------------------------------------------------------
uglobal
screen_workarea RECT
display_width_standard dd 0
display_height_standard dd 0
do_not_touch_winmap db 0
window_minimize db 0
sound_flag      db 0
 
endg
 
UID_NONE=0
UID_MENUETOS=1   ;official
UID_KOLIBRI=2    ;russian
 
iglobal
version_inf:
        db 0,7,7,0  ; version 0.7.7.0
        db 0
.rev    dd __REV__
version_end:
endg
;------------------------------------------------------------------------------
align 4
sys_cachetodiskette:
        cmp     ebx, 1
        jb      .no_floppy_save
        cmp     ebx, 2
        ja      .no_floppy_save
        call    save_image
        mov     [esp + 32], eax
        ret
.no_floppy_save:
        mov     [esp + 32], dword 1
        ret
;------------------------------------------------------------------------------
uglobal
;  bgrchanged  dd  0x0
align 4
bgrlockpid dd 0
bgrlock db 0
endg
;------------------------------------------------------------------------------
align 4
sys_background:
        cmp     ebx, 1                     ; BACKGROUND SIZE
        jnz     nosb1
        test    ecx, ecx
        jz      sbgrr
 
        test    edx, edx
        jz      sbgrr
;--------------------------------------
align 4
@@:
;;Maxis use atomic bts for mutexes  4.4.2009
        bts     dword [bgrlock], 0
        jnc     @f
        call    change_task
        jmp     @b
;--------------------------------------
align 4
@@:
        mov     [BgrDataWidth], ecx
        mov     [BgrDataHeight], edx
;    mov   [bgrchanged],1
 
        pushad
; return memory for old background
        mov     eax, [img_background]
        cmp     eax, static_background_data
        jz      @f
        stdcall kernel_free, eax
;--------------------------------------
align 4
@@:
; calculate RAW size
        xor     eax, eax
        inc     eax
        cmp     [BgrDataWidth], eax
        jae     @f
        mov     [BgrDataWidth], eax
;--------------------------------------
align 4
@@:
        cmp     [BgrDataHeight], eax
        jae     @f
        mov     [BgrDataHeight], eax
;--------------------------------------
align 4
@@:
        mov     eax, [BgrDataWidth]
        imul    eax, [BgrDataHeight]
        lea     eax, [eax*3]
; it is reserved with aligned to the boundary of 4 KB pages,
; otherwise there may be exceptions a page fault for vesa20_drawbackground_tiled
; because the 32 bit read is used for  high performance: "mov eax,[esi]"
        shr     eax, 12
        inc     eax
        shl     eax, 12
        mov     [mem_BACKGROUND], eax
; get memory for new background
        stdcall kernel_alloc, eax
        test    eax, eax
        jz      .memfailed
        mov     [img_background], eax
        jmp     .exit
;--------------------------------------
align 4
.memfailed:
; revert to static monotone data
        mov     [img_background], static_background_data
        xor     eax, eax
        inc     eax
        mov     [BgrDataWidth], eax
        mov     [BgrDataHeight], eax
        mov     [mem_BACKGROUND], 4
;--------------------------------------
align 4
.exit:
        popad
        mov     [bgrlock], 0
;--------------------------------------
align 4
sbgrr:
        ret
;------------------------------------------------------------------------------
align 4
nosb1:
        cmp     ebx, 2                     ; SET PIXEL
        jnz     nosb2
 
        mov     eax, [img_background]
        test    ecx, ecx
        jz      @f
        cmp     eax, static_background_data
        jz      .ret
;--------------------------------------
align 4
@@:
        mov     ebx, [mem_BACKGROUND]
        add     ebx, 4095
        and     ebx, -4096
        sub     ebx, 4
        cmp     ecx, ebx
        ja      .ret
 
        mov     ebx, [eax+ecx]
        and     ebx, 0xFF000000;255*256*256*256
        and     edx, 0x00FFFFFF;255*256*256+255*256+255
        add     edx, ebx
        mov     [eax+ecx], edx
;--------------------------------------
align 4
.ret:
        ret
;------------------------------------------------------------------------------
align 4
nosb2:
        cmp     ebx, 3                     ; DRAW BACKGROUND
        jnz     nosb3
;--------------------------------------
align 4
draw_background_temp:
        mov     [background_defined], 1
        call    force_redraw_background
;--------------------------------------
align 4
nosb31:
        ret
;------------------------------------------------------------------------------
align 4
nosb3:
        cmp     ebx, 4                     ; TILED / STRETCHED
        jnz     nosb4
        cmp     ecx, [BgrDrawMode]
        je      nosb41
        mov     [BgrDrawMode], ecx
;--------------------------------------
align 4
nosb41:
        ret
;------------------------------------------------------------------------------
align 4
nosb4:
        cmp     ebx, 5                     ; BLOCK MOVE TO BGR
        jnz     nosb5
        cmp     [img_background], static_background_data
        jnz     @f
        test    edx, edx
        jnz     .fin
        cmp     esi, 4
        ja      .fin
;--------------------------------------
align 4
@@:
  ; bughere
        mov     eax, ecx
        mov     ebx, edx
        add     ebx, [img_background];IMG_BACKGROUND
        mov     ecx, esi
        call    memmove
;--------------------------------------
align 4
.fin:
        ret
;------------------------------------------------------------------------------
align 4
nosb5:
        cmp     ebx, 6
        jnz     nosb6
;--------------------------------------
align 4
;;Maxis use atomic bts for mutex 4.4.2009
@@:
        bts     dword [bgrlock], 0
        jnc     @f
        call    change_task
        jmp     @b
;--------------------------------------
align 4
@@:
        mov     eax, [CURRENT_TASK]
        mov     [bgrlockpid], eax
        cmp     [img_background], static_background_data
        jz      .nomem
        stdcall user_alloc, [mem_BACKGROUND]
        mov     [esp+32], eax
        test    eax, eax
        jz      .nomem
        mov     ebx, eax
        shr     ebx, 12
        or      dword [page_tabs+(ebx-1)*4], MEM_BLOCK_DONT_FREE
        mov     esi, [img_background]
        shr     esi, 12
        mov     ecx, [mem_BACKGROUND]
        add     ecx, 0xFFF
        shr     ecx, 12
;--------------------------------------
align 4
.z:
        mov     eax, [page_tabs+ebx*4]
        test    al, 1
        jz      @f
        call    free_page
;--------------------------------------
align 4
@@:
        mov     eax, [page_tabs+esi*4]
        or      al, PG_UWR
        mov     [page_tabs+ebx*4], eax
        mov     eax, ebx
        shl     eax, 12
        invlpg  [eax]
        inc     ebx
        inc     esi
        loop    .z
        ret
;--------------------------------------
align 4
.nomem:
        and     [bgrlockpid], 0
        mov     [bgrlock], 0
;------------------------------------------------------------------------------
align 4
nosb6:
        cmp     ebx, 7
        jnz     nosb7
        cmp     [bgrlock], 0
        jz      .err
        mov     eax, [CURRENT_TASK]
        cmp     [bgrlockpid], eax
        jnz     .err
        mov     eax, ecx
        mov     ebx, ecx
        shr     eax, 12
        mov     ecx, [page_tabs+(eax-1)*4]
        test    cl, MEM_BLOCK_USED or MEM_BLOCK_DONT_FREE
        jz      .err
        jnp     .err
        push    eax
        shr     ecx, 12
        dec     ecx
;--------------------------------------
align 4
@@:
        and     dword [page_tabs+eax*4], 0
        mov     edx, eax
        shl     edx, 12
        push    eax
        invlpg  [edx]
        pop     eax
        inc     eax
        loop    @b
        pop     eax
        and     dword [page_tabs+(eax-1)*4], not MEM_BLOCK_DONT_FREE
        stdcall user_free, ebx
        mov     [esp+32], eax
        and     [bgrlockpid], 0
        mov     [bgrlock], 0
        ret
;--------------------------------------
align 4
.err:
        and     dword [esp+32], 0
        ret
;------------------------------------------------------------------------------
align 4
nosb7:
        cmp     ebx, 8
        jnz     nosb8
 
        mov     ecx, [current_slot]
        xor     eax, eax
        xchg    eax, [ecx+APPDATA.draw_bgr_x]
        mov     [esp + 32], eax ; eax = [left]*65536 + [right]
        xor     eax, eax
        xchg    eax, [ecx+APPDATA.draw_bgr_y]
        mov     [esp + 20], eax ; ebx = [top]*65536 + [bottom]
        ret
;------------------------------------------------------------------------------
align 4
nosb8:
        cmp     ebx, 9
        jnz     nosb9
; ecx = [left]*65536 + [right]
; edx = [top]*65536 + [bottom]
        mov     eax, [_display.width]
        mov     ebx, [_display.height]
; check [right]
        cmp     cx, ax
        jae     .exit
; check [left]
        ror     ecx, 16
        cmp     cx, ax
        jae     .exit
; check [bottom]
        cmp     dx, bx
        jae     .exit
; check [top]
        ror     edx, 16
        cmp     dx, bx
        jae     .exit
 
        movzx   eax, cx  ; [left]
        movzx   ebx, dx  ; [top]
 
        shr     ecx, 16 ; [right]
        shr     edx, 16 ; [bottom]
 
        mov     [background_defined], 1
 
        mov     [draw_data+32 + RECT.left], eax
        mov     [draw_data+32 + RECT.top], ebx
 
        mov     [draw_data+32 + RECT.right], ecx
        mov     [draw_data+32 + RECT.bottom], edx
 
        inc     [REDRAW_BACKGROUND]
        call    wakeup_osloop
;--------------------------------------
align 4
.exit:
        ret
;------------------------------------------------------------------------------
align 4
nosb9:
        ret
;------------------------------------------------------------------------------
align 4
uglobal
  BG_Rect_X_left_right  dd   0x0
  BG_Rect_Y_top_bottom  dd   0x0
endg
;------------------------------------------------------------------------------
align 4
force_redraw_background:
        and     [draw_data+32 + RECT.left], 0
        and     [draw_data+32 + RECT.top], 0
        push    eax ebx
        mov     eax, [_display.width]
        mov     ebx, [_display.height]
        dec     eax
        dec     ebx
        mov     [draw_data+32 + RECT.right], eax
        mov     [draw_data+32 + RECT.bottom], ebx
        pop     ebx eax
        inc     [REDRAW_BACKGROUND]
        call    wakeup_osloop
        ret
;------------------------------------------------------------------------------
align 4
sys_getbackground:
;    cmp   eax,1                                  ; SIZE
        dec     ebx
        jnz     nogb1
        mov     eax, [BgrDataWidth]
        shl     eax, 16
        mov     ax, word [BgrDataHeight]
        mov     [esp+32], eax
        ret
;------------------------------------------------------------------------------
align 4
nogb1:
;    cmp   eax,2                                  ; PIXEL
        dec     ebx
        jnz     nogb2
 
        mov     eax, [img_background]
        test    ecx, ecx
        jz      @f
        cmp     eax, static_background_data
        jz      .ret
;--------------------------------------
align 4
@@:
        mov     ebx, [mem_BACKGROUND]
        add     ebx, 4095
        and     ebx, -4096
        sub     ebx, 4
        cmp     ecx, ebx
        ja      .ret
 
        mov     eax, [ecx+eax]
 
        and     eax, 0xFFFFFF
        mov     [esp+32], eax
;--------------------------------------
align 4
.ret:
        ret
;------------------------------------------------------------------------------
align 4
nogb2:
 
;    cmp   eax,4                                  ; TILED / STRETCHED
        dec     ebx
        dec     ebx
        jnz     nogb4
        mov     eax, [BgrDrawMode]
;--------------------------------------
align 4
nogb4:
        mov     [esp+32], eax
        ret
;------------------------------------------------------------------------------
align 4
sys_getkey:
        mov     [esp + 32], dword 1
        ; test main buffer
        mov     ebx, [CURRENT_TASK]                          ; TOP OF WINDOW STACK
        movzx   ecx, word [WIN_STACK + ebx * 2]
        mov     edx, [TASK_COUNT]
        cmp     ecx, edx
        jne     .finish
        cmp     [KEY_COUNT], byte 0
        je      .finish
        movzx   ax, byte [KEY_BUFF + 120 + 2]
        shl     eax, 8
        mov     al, byte [KEY_BUFF]
        shl     eax, 8
        push    eax
        dec     byte [KEY_COUNT]
        and     byte [KEY_COUNT], 127
        movzx   ecx, byte [KEY_COUNT]
        add     ecx, 2
        mov     eax, KEY_BUFF + 1
        mov     ebx, KEY_BUFF
        call    memmove
        add     eax, 120 + 2
        add     ebx, 120 + 2
        call    memmove
        pop     eax
;--------------------------------------
align 4
.ret_eax:
        mov     [esp + 32], eax
        ret
;--------------------------------------
align 4
.finish:
; test hotkeys buffer
        mov     ecx, hotkey_buffer
;--------------------------------------
align 4
@@:
        cmp     [ecx], ebx
        jz      .found
        add     ecx, 8
        cmp     ecx, hotkey_buffer + 120 * 8
        jb      @b
        ret
;--------------------------------------
align 4
.found:
        mov     ax, [ecx + 6]
        shl     eax, 16
        mov     ah, [ecx + 4]
        mov     al, 2
        and     dword [ecx + 4], 0
        and     dword [ecx], 0
        jmp     .ret_eax
;------------------------------------------------------------------------------
align 4
sys_getbutton:
        mov     ebx, [CURRENT_TASK]                         ; TOP OF WINDOW STACK
        mov     [esp + 32], dword 1
        movzx   ecx, word [WIN_STACK + ebx * 2]
        mov     edx, [TASK_COUNT] ; less than 256 processes
        cmp     ecx, edx
        jne     .exit
        movzx   eax, byte [BTN_COUNT]
        test    eax, eax
        jz      .exit
        mov     eax, [BTN_BUFF]
        and     al, 0xFE                                    ; delete left button bit
        mov     [BTN_COUNT], byte 0
        mov     [esp + 32], eax
;--------------------------------------
align 4
.exit:
        ret
;------------------------------------------------------------------------------
align 4
sys_cpuusage:
 
;  RETURN:
;
;  +00 dword     process cpu usage
;  +04  word     position in windowing stack
;  +06  word     windowing stack value at current position (cpu nro)
;  +10 12 bytes  name
;  +22 dword     start in mem
;  +26 dword     used mem
;  +30 dword     PID , process idenfification number
;
        ; if given memory address belongs to kernel then error
        push    ebx
        mov     eax, ebx
        mov     ebx, 0x4C
        call    is_region_userspace
        pop     ebx
        test    eax, eax
        jz      .addr_error
 
        cmp     ecx, -1 ; who am I ?
        jne     .no_who_am_i
        mov     ecx, [CURRENT_TASK]
  .no_who_am_i:
        cmp     ecx, max_processes
        ja      .nofillbuf
 
; +4: word: position of the window of thread in the window stack
        mov     ax, [WIN_STACK + ecx * 2]
        mov     [ebx+4], ax
; +6: word: number of the thread slot, which window has in the window stack
;           position ecx (has no relation to the specific thread)
        mov     ax, [WIN_POS + ecx * 2]
        mov     [ebx+6], ax
 
        shl     ecx, 5
 
; +0: dword: memory usage
        mov     eax, [ecx+CURRENT_TASK+TASKDATA.cpu_usage]
        mov     [ebx], eax
; +10: 11 bytes: name of the process
        push    ecx
        lea     eax, [ecx*8+SLOT_BASE+APPDATA.app_name]
        add     ebx, 10
        mov     ecx, 11
        call    memmove
        pop     ecx
 
; +22: address of the process in memory
; +26: size of used memory - 1
        push    edi
        lea     edi, [ebx+12]
        xor     eax, eax
        mov     edx, 0x100000*16
        cmp     ecx, 1 shl 5
        je      .os_mem
        mov     edx, [SLOT_BASE+ecx*8+APPDATA.process]
        mov     edx, [edx+PROC.mem_used]
        mov     eax, std_application_base_address
.os_mem:
        stosd
        lea     eax, [edx-1]
        stosd
 
; +30: PID/TID
        mov     eax, [ecx+CURRENT_TASK+TASKDATA.pid]
        stosd
 
    ; window position and size
        push    esi
        lea     esi, [ecx + window_data + WDATA.box]
        movsd
        movsd
        movsd
        movsd
 
    ; Process state (+50)
        mov     eax, dword [ecx+CURRENT_TASK+TASKDATA.state]
        stosd
 
    ; Window client area box
        lea     esi, [ecx*8 + SLOT_BASE + APPDATA.wnd_clientbox]
        movsd
        movsd
        movsd
        movsd
 
    ; Window state
        mov     al, [ecx+window_data+WDATA.fl_wstate]
        stosb
 
    ; Event mask (+71)
        mov     EAX, dword [ECX+CURRENT_TASK+TASKDATA.event_mask]
        stosd
 
    ; Keyboard mode (+75)
        mov     al, byte [ecx*8 + SLOT_BASE + APPDATA.keyboard_mode]
        stosb
 
        pop     esi
        pop     edi
 
.nofillbuf:
    ; return number of processes
 
        mov     eax, [TASK_COUNT]
        mov     [esp+32], eax
        ret
 
.addr_error:    ; if given memory address is illegal
        mov     dword [esp+32], -1
        ret   
 
align 4
sys_clock:
        cli
  ; Mikhail Lisovin  xx Jan 2005
  @@:
        mov     al, 10
        out     0x70, al
        in      al, 0x71
        test    al, al
        jns     @f
        mov     esi, 1
        call    delay_ms
        jmp     @b
  @@:
  ; end Lisovin's fix
 
        xor     al, al        ; seconds
        out     0x70, al
        in      al, 0x71
        movzx   ecx, al
        mov     al, 02        ; minutes
        shl     ecx, 16
        out     0x70, al
        in      al, 0x71
        movzx   edx, al
        mov     al, 04        ; hours
        shl     edx, 8
        out     0x70, al
        in      al, 0x71
        add     ecx, edx
        movzx   edx, al
        add     ecx, edx
        sti
        mov     [esp + 32], ecx
        ret
 
 
align 4
 
sys_date:
 
        cli
  @@:
        mov     al, 10
        out     0x70, al
        in      al, 0x71
        test    al, al
        jns     @f
        mov     esi, 1
        call    delay_ms
        jmp     @b
  @@:
 
        mov     ch, 0
        mov     al, 7           ; date
        out     0x70, al
        in      al, 0x71
        mov     cl, al
        mov     al, 8           ; month
        shl     ecx, 16
        out     0x70, al
        in      al, 0x71
        mov     ch, al
        mov     al, 9           ; year
        out     0x70, al
        in      al, 0x71
        mov     cl, al
        sti
        mov     [esp+32], ecx
        ret
 
 
; redraw status
 
sys_redrawstat:
        cmp     ebx, 1
        jne     no_widgets_away
        ; buttons away
        mov     ecx, [CURRENT_TASK]
  sys_newba2:
        mov     edi, [BTN_ADDR]
        cmp     [edi], dword 0  ; empty button list ?
        je      end_of_buttons_away
        movzx   ebx, word [edi]
        inc     ebx
        mov     eax, edi
  sys_newba:
        dec     ebx
        jz      end_of_buttons_away
 
        add     eax, 0x10
        cmp     cx, [eax]
        jnz     sys_newba
 
        push    eax ebx ecx
        mov     ecx, ebx
        inc     ecx
        shl     ecx, 4
        mov     ebx, eax
        add     eax, 0x10
        call    memmove
        dec     dword [edi]
        pop     ecx ebx eax
 
        jmp     sys_newba2
 
  end_of_buttons_away:
 
        ret
 
  no_widgets_away:
 
        cmp     ebx, 2
        jnz     srl1
 
        mov     edx, [TASK_BASE]      ; return whole screen draw area for this app
        add     edx, draw_data - CURRENT_TASK
        mov     [edx + RECT.left], 0
        mov     [edx + RECT.top], 0
        mov     eax, [_display.width]
        dec     eax
        mov     [edx + RECT.right], eax
        mov     eax, [_display.height]
        dec     eax
        mov     [edx + RECT.bottom], eax
 
  srl1:
        ret
 
;ok - 100% work
;nt - not tested
;---------------------------------------------------------------------------------------------
;eax
;0 - task switch counter. Ret switch counter in eax. Block. ok.
;1 - change task. Ret nothing. Block. ok.
;2 - performance control
; ebx
; 0 - enable or disable (inversion) PCE flag on CR4 for rdmpc in user mode.
; returned new cr4 in eax. Ret cr4 in eax. Block. ok.
; 1 - is cache enabled. Ret cr0 in eax if enabled else zero in eax. Block. ok.
; 2 - enable cache. Ret 1 in eax. Ret nothing. Block. ok.
; 3 - disable cache. Ret 0 in eax. Ret nothing. Block. ok.
;eax
;3 - rdmsr. Counter in edx. (edx:eax) [esi:edi, edx] => [edx:esi, ecx]. Ret in ebx:eax. Block. ok.
;4 - wrmsr. Counter in edx. (edx:eax) [esi:edi, edx] => [edx:esi, ecx]. Ret in ebx:eax. Block. ok.
;---------------------------------------------------------------------------------------------
iglobal
align 4
sheduler:
        dd      sys_sheduler.00
        dd      change_task
        dd      sys_sheduler.02
        dd      sys_sheduler.03
        dd      sys_sheduler.04
endg
sys_sheduler:
;rewritten by   29.12.2009
        jmp     dword [sheduler+ebx*4]
;.shed_counter:
.00:
        mov     eax, [context_counter]
        mov     [esp+32], eax
        ret
 
.02:
;.perf_control:
        inc     ebx                     ;before ebx=2, ebx=3
        cmp     ebx, ecx                ;if ecx=3, ebx=3
        jz      cache_disable
 
        dec     ebx                     ;ebx=2
        cmp     ebx, ecx                ;
        jz      cache_enable            ;if ecx=2 and ebx=2
 
        dec     ebx                     ;ebx=1
        cmp     ebx, ecx
        jz      is_cache_enabled        ;if ecx=1 and ebx=1
 
        dec     ebx
        test    ebx, ecx                ;ebx=0 and ecx=0
        jz      modify_pce              ;if ecx=0
 
        ret
 
.03:
;.rdmsr_instr:
;now counter in ecx
;(edx:eax) esi:edi => edx:esi
        mov     eax, esi
        mov     ecx, edx
        rdmsr
        mov     [esp+32], eax
        mov     [esp+20], edx           ;ret in ebx?
        ret
 
.04:
;.wrmsr_instr:
;now counter in ecx
;(edx:eax) esi:edi => edx:esi
        ; Fast Call MSR can't be destroy
        ; Но MSR_AMD_EFER можно изменять, т.к. в этом регистре лиш
        ; включаются/выключаются расширенные возможности
        cmp     edx, MSR_SYSENTER_CS
        je      @f
        cmp     edx, MSR_SYSENTER_ESP
        je      @f
        cmp     edx, MSR_SYSENTER_EIP
        je      @f
        cmp     edx, MSR_AMD_STAR
        je      @f
 
        mov     eax, esi
        mov     ecx, edx
        wrmsr
        ; mov   [esp + 32], eax
        ; mov   [esp + 20], edx ;ret in ebx?
@@:
        ret
 
cache_disable:
        mov     eax, cr0
        or      eax, 01100000000000000000000000000000b
        mov     cr0, eax
        wbinvd  ;set MESI
        ret
 
cache_enable:
        mov     eax, cr0
        and     eax, 10011111111111111111111111111111b
        mov     cr0, eax
        ret
 
is_cache_enabled:
        mov     eax, cr0
        mov     ebx, eax
        and     eax, 01100000000000000000000000000000b
        jz      cache_disabled
        mov     [esp+32], ebx
cache_disabled:
        mov     dword [esp+32], eax;0
        ret
 
modify_pce:
        mov     eax, cr4
;       mov ebx,0
;       or  bx,100000000b ;pce
;       xor eax,ebx ;invert pce
        bts     eax, 8;pce=cr4[8]
        mov     cr4, eax
        mov     [esp+32], eax
        ret
;---------------------------------------------------------------------------------------------
 
 
iglobal
  cpustring db 'CPU',0
endg
 
uglobal
background_defined    db    0    ; diamond, 11.04.2006
endg
;-----------------------------------------------------------------------------
align 4
checkmisc:
        cmp     [ctrl_alt_del], 1
        jne     nocpustart
 
        mov     ebp, cpustring
        call    fs_execute_from_sysdir
 
        mov     [ctrl_alt_del], 0
;--------------------------------------
align 4
nocpustart:
        cmp     [mouse_active], 1
        jne     mouse_not_active
        mov     [mouse_active], 0
 
        xor     edi, edi
        mov     ebx, CURRENT_TASK
 
        mov     ecx, [TASK_COUNT]
        movzx   eax, word [WIN_POS + ecx*2]     ; active window
        shl     eax, 8
        push    eax
 
        movzx   eax, word [MOUSE_X]
        movzx   edx, word [MOUSE_Y]
;--------------------------------------
align 4
.set_mouse_event:
        add     edi, sizeof.APPDATA
        add     ebx, sizeof.TASKDATA
        test    [ebx+TASKDATA.event_mask], 0x80000000
        jz      .pos_filter
 
        cmp     edi, [esp]                      ; skip if filtration active
        jne     .skip
;--------------------------------------
align 4
.pos_filter:
        test    [ebx+TASKDATA.event_mask], 0x40000000
        jz      .set
 
        mov     esi, [ebx-twdw+WDATA.box.left]
        cmp     eax, esi
        jb      .skip
        add     esi, [ebx-twdw+WDATA.box.width]
        cmp     eax, esi
        ja      .skip
 
        mov     esi, [ebx-twdw+WDATA.box.top]
        cmp     edx, esi
        jb      .skip
        add     esi, [ebx-twdw+WDATA.box.height]
        cmp     edx, esi
        ja      .skip
;--------------------------------------
align 4
.set:
        or      [edi+SLOT_BASE+APPDATA.event_mask], 100000b  ; set event 6
;--------------------------------------
align 4
.skip:
        loop    .set_mouse_event
 
        pop     eax
;--------------------------------------
align 4
mouse_not_active:
        cmp     [REDRAW_BACKGROUND], 0  ; background update ?
        jz      nobackgr
 
        cmp     [background_defined], 0
        jz      nobackgr
;--------------------------------------
align 4
backgr:
        mov     eax, [draw_data+32 + RECT.left]
        shl     eax, 16
        add     eax, [draw_data+32 + RECT.right]
        mov     [BG_Rect_X_left_right], eax ; [left]*65536 + [right]
 
        mov     eax, [draw_data+32 + RECT.top]
        shl     eax, 16
        add     eax, [draw_data+32 + RECT.bottom]
        mov     [BG_Rect_Y_top_bottom], eax ; [top]*65536 + [bottom]
 
        call    drawbackground
;        DEBUGF  1, "K : drawbackground\n"
;        DEBUGF  1, "K : backg x %x\n",[BG_Rect_X_left_right]
;        DEBUGF  1, "K : backg y %x\n",[BG_Rect_Y_top_bottom]
;--------- set event 5 start ----------
        push    ecx edi
        xor     edi, edi
        mov     ecx, [TASK_COUNT]
;--------------------------------------
align 4
set_bgr_event:
        add     edi, sizeof.APPDATA
        mov     eax, [BG_Rect_X_left_right]
        mov     edx, [BG_Rect_Y_top_bottom]
        cmp     [edi+SLOT_BASE+APPDATA.draw_bgr_x], 0
        jz      .set
.join:
        cmp     word [edi+SLOT_BASE+APPDATA.draw_bgr_x], ax
        jae     @f
        mov     word [edi+SLOT_BASE+APPDATA.draw_bgr_x], ax
@@:
        shr     eax, 16
        cmp     word [edi+SLOT_BASE+APPDATA.draw_bgr_x+2], ax
        jbe     @f
        mov     word [edi+SLOT_BASE+APPDATA.draw_bgr_x+2], ax
@@:
        cmp     word [edi+SLOT_BASE+APPDATA.draw_bgr_y], dx
        jae     @f
        mov     word [edi+SLOT_BASE+APPDATA.draw_bgr_y], dx
@@:
        shr     edx, 16
        cmp     word [edi+SLOT_BASE+APPDATA.draw_bgr_y+2], dx
        jbe     @f
        mov     word [edi+SLOT_BASE+APPDATA.draw_bgr_y+2], dx
@@:
        jmp     .common
.set:
        mov     [edi+SLOT_BASE+APPDATA.draw_bgr_x], eax
        mov     [edi+SLOT_BASE+APPDATA.draw_bgr_y], edx
.common:
        or      [edi+SLOT_BASE+APPDATA.event_mask], 10000b  ; set event 5
        loop    set_bgr_event
        pop     edi ecx
;--------- set event 5 stop -----------
        dec     [REDRAW_BACKGROUND]     ; got new update request?
        jnz     backgr
 
        xor     eax, eax
        mov     [draw_data+32 + RECT.left], eax
        mov     [draw_data+32 + RECT.top], eax
        mov     [draw_data+32 + RECT.right], eax
        mov     [draw_data+32 + RECT.bottom], eax
;--------------------------------------
align 4
nobackgr:
; system shutdown request
        cmp     [SYS_SHUTDOWN], byte 0
        je      noshutdown
 
        mov     edx, [shutdown_processes]
 
        cmp     [SYS_SHUTDOWN], dl
        jne     noshutdown
 
        lea     ecx, [edx-1]
        mov     edx, OS_BASE+0x3040
        jecxz   no_mark_system_shutdown
;--------------------------------------
align 4
markz:
        push    ecx edx
        cmp     [edx+TASKDATA.state], TSTATE_FREE
        jz      .nokill
        lea     edx, [(edx-(CURRENT_TASK and 1FFFFFFFh))*8+SLOT_BASE]
        cmp     [edx+APPDATA.process], sys_proc
        jz      .nokill
        call    request_terminate
        jmp     .common
.nokill:
        dec     byte [SYS_SHUTDOWN]
        xor     eax, eax
.common:
        pop     edx ecx
        test    eax, eax
        jz      @f
        mov     [edx+TASKDATA.state], TSTATE_ZOMBIE
@@:
        add     edx, 0x20
        loop    markz
        call    wakeup_osloop
;--------------------------------------
align 4
@@:
no_mark_system_shutdown:
        dec     byte [SYS_SHUTDOWN]
        je      system_shutdown
;--------------------------------------
align 4
noshutdown:
        mov     eax, [TASK_COUNT]           ; termination
        mov     ebx, TASK_DATA+TASKDATA.state
        mov     esi, 1
;--------------------------------------
align 4
newct:
        mov     cl, [ebx]
        cmp     cl, byte 3
        jz      .terminate
 
        cmp     cl, byte 4
        jnz     .noterminate
.terminate:
        pushad
        mov     ecx, eax
        shl     ecx, 8
        add     ecx, SLOT_BASE
        call    restore_default_cursor_before_killing
        popad
 
        pushad
        call    terminate
        popad
        cmp     byte [SYS_SHUTDOWN], 0
        jz      .noterminate
        dec     byte [SYS_SHUTDOWN]
        je      system_shutdown
 
.noterminate:
        add     ebx, 0x20
        inc     esi
        dec     eax
        jnz     newct
        ret
;-----------------------------------------------------------------------------
align 4
redrawscreen:
; eax , if process window_data base is eax, do not set flag/limits
 
        pushad
        push    eax
 
;;;         mov   ebx,2
;;;         call  delay_hs
 
         ;mov   ecx,0               ; redraw flags for apps
        xor     ecx, ecx
;--------------------------------------
align 4
newdw2:
        inc     ecx
        push    ecx
 
        mov     eax, ecx
        shl     eax, 5
        add     eax, window_data
 
        cmp     eax, [esp+4]
        je      not_this_task
                                   ; check if window in redraw area
        mov     edi, eax
 
        cmp     ecx, 1             ; limit for background
        jz      bgli
 
        mov     eax, [esp+4]        ;if upper in z-position - no redraw
        test    eax, eax
        jz      @f
        mov     al, [eax + WDATA.z_modif]
        cmp     [edi + WDATA.z_modif], al
        jg      ricino
      @@:
 
        mov     eax, [edi + WDATA.box.left]
        mov     ebx, [edi + WDATA.box.top]
 
        mov     ecx, [draw_limits.bottom] ; ecx = area y end     ebx = window y start
        cmp     ecx, ebx
        jb      ricino
 
        mov     ecx, [draw_limits.right] ; ecx = area x end     eax = window x start
        cmp     ecx, eax
        jb      ricino
 
        mov     eax, [edi + WDATA.box.left]
        mov     ebx, [edi + WDATA.box.top]
        mov     ecx, [edi + WDATA.box.width]
        mov     edx, [edi + WDATA.box.height]
        add     ecx, eax
        add     edx, ebx
 
        mov     eax, [draw_limits.top]  ; eax = area y start     edx = window y end
        cmp     edx, eax
        jb      ricino
 
        mov     eax, [draw_limits.left]  ; eax = area x start     ecx = window x end
        cmp     ecx, eax
        jb      ricino
;--------------------------------------
align 4
bgli:
        cmp     dword[esp], 1
        jnz     .az
 
        cmp     [REDRAW_BACKGROUND], 0
        jz      .az
 
        mov     dl, 0
        lea     eax, [edi+draw_data-window_data]
        mov     ebx, [draw_limits.left]
        cmp     ebx, [eax+RECT.left]
        jae     @f
 
        mov     [eax+RECT.left], ebx
        mov     dl, 1
;--------------------------------------
align 4
@@:
        mov     ebx, [draw_limits.top]
        cmp     ebx, [eax+RECT.top]
        jae     @f
 
        mov     [eax+RECT.top], ebx
        mov     dl, 1
;--------------------------------------
align 4
@@:
        mov     ebx, [draw_limits.right]
        cmp     ebx, [eax+RECT.right]
        jbe     @f
 
        mov     [eax+RECT.right], ebx
        mov     dl, 1
;--------------------------------------
align 4
@@:
        mov     ebx, [draw_limits.bottom]
        cmp     ebx, [eax+RECT.bottom]
        jbe     @f
 
        mov     [eax+RECT.bottom], ebx
        mov     dl, 1
;--------------------------------------
align 4
@@:
        add     [REDRAW_BACKGROUND], dl
        call    wakeup_osloop
        jmp     newdw8
;--------------------------------------
align 4
.az:
        mov     eax, edi
        add     eax, draw_data-window_data
 
        mov     ebx, [draw_limits.left]        ; set limits
        mov     [eax + RECT.left], ebx
        mov     ebx, [draw_limits.top]
        mov     [eax + RECT.top], ebx
        mov     ebx, [draw_limits.right]
        mov     [eax + RECT.right], ebx
        mov     ebx, [draw_limits.bottom]
        mov     [eax + RECT.bottom], ebx
 
        sub     eax, draw_data-window_data
 
        cmp     dword [esp], 1
        jne     nobgrd
        inc     [REDRAW_BACKGROUND]
        call    wakeup_osloop
;--------------------------------------
align 4
newdw8:
nobgrd:
;--------------------------------------
        push    eax  edi ebp
        mov     edi, [esp+12]
        cmp     edi, 1
        je      .found
 
        mov     eax, [draw_limits.left]
        mov     ebx, [draw_limits.top]
        mov     ecx, [draw_limits.right]
        sub     ecx, eax
        test    ecx, ecx
        jz      .not_found
 
        mov     edx, [draw_limits.bottom]
        sub     edx, ebx
        test    edx, edx
        jz      .not_found
 
; eax - x, ebx - y
; ecx - size x, edx - size y
        add     ebx, edx
;--------------------------------------
align 4
.start_y:
        push    ecx
;--------------------------------------
align 4
.start_x:
        add     eax, ecx
        mov     ebp, [d_width_calc_area + ebx*4]
        add     ebp, [_display.win_map]
        movzx   ebp, byte[eax+ebp] ; get value for current point
        cmp     ebp, edi
        jne     @f
 
        pop     ecx
        jmp     .found
;--------------------------------------
align 4
@@:
        sub     eax, ecx
 
        dec     ecx
        jnz     .start_x
 
        pop     ecx
        dec     ebx
        dec     edx
        jnz     .start_y
;--------------------------------------
align 4
.not_found:
        pop     ebp edi eax
        jmp     ricino
;--------------------------------------
align 4
.found:
        pop     ebp edi eax
 
        mov     [eax + WDATA.fl_redraw], byte 1  ; mark as redraw
;--------------------------------------
align 4
ricino:
not_this_task:
        pop     ecx
 
        cmp     ecx, [TASK_COUNT]
        jle     newdw2
 
        pop     eax
        popad
        ret
;-----------------------------------------------------------------------------
align 4
calculatebackground:   ; background
        mov     edi, [_display.win_map]              ; set os to use all pixels
        mov     eax, 0x01010101
        mov     ecx, [_display.win_map_size]
        shr     ecx, 2
        rep stosd
        mov     byte[window_data+32+WDATA.z_modif], ZPOS_DESKTOP
        mov     [REDRAW_BACKGROUND], 0
        ret
;-----------------------------------------------------------------------------
uglobal
  imax    dd 0x0
endg
;-----------------------------------------------------------------------------
align 4
delay_ms:     ; delay in 1/1000 sec
        pushad
 
        cmp     [hpet_base], 0
        jz      .no_hpet
        mov     eax, esi
        mov     edx, 1_000_000 ; ms to ns
        mul     edx
        mov     ebx, edx
        mov     ecx, eax
 
        push    ecx
        call    get_clock_ns
        pop     ecx
        mov     edi, edx
        mov     esi, eax
.wait:
        push    ecx
        call    get_clock_ns
        pop     ecx
        sub     eax, esi
        sbb     edx, edi
        sub     eax, ecx
        sbb     edx, ebx
        jc      .wait
        jmp     .done
 
.no_hpet:
        mov     ecx, esi
        ; 
        imul    ecx, 33941
        shr     ecx, 9
        ; 
 
        in      al, 0x61
        and     al, 0x10
        mov     ah, al
        cld
 
.cnt1:
        in      al, 0x61
        and     al, 0x10
        cmp     al, ah
        jz      .cnt1
 
        mov     ah, al
        loop    .cnt1
 
.done:
        popad
        ret
;-----------------------------------------------------------------------------
align 4
set_app_param:
        mov     edi, [TASK_BASE]
        mov     eax, ebx
        btr     eax, 3                           ; move MOUSE_FILTRATION
        mov     ebx, [current_slot]              ; bit into event_filter
        setc    byte [ebx+APPDATA.event_filter]
        xchg    eax, [edi + TASKDATA.event_mask] ; set new event mask
        mov     [esp+32], eax                    ; return old mask value
        ret
;-----------------------------------------------------------------------------
 
; this is for syscall
proc delay_hs_unprotected
        call    unprotect_from_terminate
        call    delay_hs
        call    protect_from_terminate
        ret
endp
 
if 1
align 4
delay_hs:     ; delay in 1/100 secs
; ebx = delay time
 
        pushad
        push    ebx
        xor     esi, esi
        mov     ecx, MANUAL_DESTROY
        call    create_event
        test    eax, eax
        jz      .done
 
        mov     ebx, edx
        mov     ecx, [esp]
        push    edx
        push    eax
        call    wait_event_timeout
        pop     eax
        pop     ebx
        call    destroy_event
.done:
        add     esp, 4
        popad
        ret
 
else
 
align 4
delay_hs:     ; delay in 1/100 secs
; ebx = delay time
        push    ecx
        push    edx
 
        mov     edx, [timer_ticks]
;--------------------------------------
align 4
newtic:
        mov     ecx, [timer_ticks]
        sub     ecx, edx
        cmp     ecx, ebx
        jae     zerodelay
 
        call    change_task
 
        jmp     newtic
;--------------------------------------
align 4
zerodelay:
        pop     edx
        pop     ecx
        ret
end if
 
;-----------------------------------------------------------------------------
align 16        ;very often call this subrutine
memmove:       ; memory move in bytes
; eax = from
; ebx = to
; ecx = no of bytes
        test    ecx, ecx
        jle     .ret
 
        push    esi edi ecx
 
        mov     edi, ebx
        mov     esi, eax
 
        test    ecx, not 11b
        jz      @f
 
        push    ecx
        shr     ecx, 2
        rep movsd
        pop     ecx
        and     ecx, 11b
        jz      .finish
;--------------------------------------
align 4
@@:
        rep movsb
;--------------------------------------
align 4
.finish:
        pop     ecx edi esi
;--------------------------------------
align 4
.ret:
        ret
;-----------------------------------------------------------------------------
;  Sysfunction 34, read_floppy_file, is obsolete. Use 58 or 70 function instead.
;align 4
;
;read_floppy_file:
;
;; as input
;;
;; eax pointer to file
;; ebx file lenght
;; ecx start 512 byte block number
;; edx number of blocks to read
;; esi pointer to return/work area (atleast 20 000 bytes)
;;
;;
;; on return
;;
;; eax = 0 command succesful
;;       1 no fd base and/or partition defined
;;       2 yet unsupported FS
;;       3 unknown FS
;;       4 partition not defined at hd
;;       5 file not found
;; ebx = size of file
;
;     mov   edi,[TASK_BASE]
;     add   edi,0x10
;     add   esi,[edi]
;     add   eax,[edi]
;
;     pushad
;     mov  edi,esi
;     add  edi,1024
;     mov  esi,0x100000+19*512
;     sub  ecx,1
;     shl  ecx,9
;     add  esi,ecx
;     shl  edx,9
;     mov  ecx,edx
;     cld
;     rep  movsb
;     popad
;
;     mov   [esp+36],eax
;     mov   [esp+24],ebx
;     ret
 
 
 
align 4
set_io_access_rights:
        push    edi eax
        mov     edi, tss._io_map_0
;     mov   ecx,eax
;     and   ecx,7    ; offset in byte
;     shr   eax,3    ; number of byte
;     add   edi,eax
;     mov   ebx,1
;     shl   ebx,cl
        test    ebp, ebp
;     cmp   ebp,0                ; enable access - ebp = 0
        jnz     .siar1
;     not   ebx
;     and   [edi],byte bl
        btr     [edi], eax
        pop     eax edi
        ret
.siar1:
        bts     [edi], eax
  ;  or    [edi],byte bl        ; disable access - ebp = 1
        pop     eax edi
        ret
;reserve/free group of ports
;  * eax = 46 - number function
;  * ebx = 0 - reserve, 1 - free
;  * ecx = number start arrea of ports
;  * edx = number end arrea of ports (include last number of port)
;Return value:
;  * eax = 0 - succesful
;  * eax = 1 - error
;  * The system has reserve this ports:
;    0..0x2d, 0x30..0x4d, 0x50..0xdf, 0xe5..0xff (include last number of port).
;destroys eax,ebx, ebp
r_f_port_area:
 
        test    ebx, ebx
        jnz     free_port_area
;     je    r_port_area
;     jmp   free_port_area
 
;   r_port_area:
 
;     pushad
 
        cmp     ecx, edx      ; beginning > end ?
        ja      rpal1
        cmp     edx, 65536
        jae     rpal1
        mov     eax, [RESERVED_PORTS]
        test    eax, eax      ; no reserved areas ?
        je      rpal2
        cmp     eax, 255      ; max reserved
        jae     rpal1
 rpal3:
        mov     ebx, eax
        shl     ebx, 4
        add     ebx, RESERVED_PORTS
        cmp     ecx, [ebx+8]
        ja      rpal4
        cmp     edx, [ebx+4]
        jae     rpal1
;     jb    rpal4
;     jmp   rpal1
 rpal4:
        dec     eax
        jnz     rpal3
        jmp     rpal2
   rpal1:
;     popad
;     mov   eax,1
        xor     eax, eax
        inc     eax
        ret
   rpal2:
;     popad
     ; enable port access at port IO map
        cli
        pushad                        ; start enable io map
 
        cmp     edx, 65536;16384
        jae     no_unmask_io; jge
        mov     eax, ecx
;       push    ebp
        xor     ebp, ebp               ; enable - eax = port
new_port_access:
;     pushad
        call    set_io_access_rights
;     popad
        inc     eax
        cmp     eax, edx
        jbe     new_port_access
;       pop     ebp
no_unmask_io:
        popad                         ; end enable io map
        sti
 
        mov     eax, [RESERVED_PORTS]
        add     eax, 1
        mov     [RESERVED_PORTS], eax
        shl     eax, 4
        add     eax, RESERVED_PORTS
        mov     ebx, [TASK_BASE]
        mov     ebx, [ebx+TASKDATA.pid]
        mov     [eax], ebx
        mov     [eax+4], ecx
        mov     [eax+8], edx
 
        xor     eax, eax
        ret
 
free_port_area:
 
;     pushad
        mov     eax, [RESERVED_PORTS]; no reserved areas ?
        test    eax, eax
        jz      frpal2
        mov     ebx, [TASK_BASE]
        mov     ebx, [ebx+TASKDATA.pid]
   frpal3:
        mov     edi, eax
        shl     edi, 4
        add     edi, RESERVED_PORTS
        cmp     ebx, [edi]
        jne     frpal4
        cmp     ecx, [edi+4]
        jne     frpal4
        cmp     edx, [edi+8]
        jne     frpal4
        jmp     frpal1
   frpal4:
        dec     eax
        jnz     frpal3
   frpal2:
;     popad
        inc     eax
        ret
   frpal1:
        push    ecx
        mov     ecx, 256
        sub     ecx, eax
        shl     ecx, 4
        mov     esi, edi
        add     esi, 16
        cld
        rep movsb
 
        dec     dword [RESERVED_PORTS]
;popad
;disable port access at port IO map
 
;     pushad                        ; start disable io map
        pop     eax     ;start port
        cmp     edx, 65536;16384
        jge     no_mask_io
 
;     mov   eax,ecx
        xor     ebp, ebp
        inc     ebp
new_port_access_disable:
;     pushad
;     mov   ebp,1                  ; disable - eax = port
        call    set_io_access_rights
;     popad
        inc     eax
        cmp     eax, edx
        jbe     new_port_access_disable
no_mask_io:
;     popad                         ; end disable io map
        xor     eax, eax
        ret
;-----------------------------------------------------------------------------
align 4
drawbackground:
dbrv20:
        cmp     [BgrDrawMode], dword 1
        jne     bgrstr
        call    vesa20_drawbackground_tiled
;        call    [draw_pointer]
        call    __sys_draw_pointer
        ret
;--------------------------------------
align 4
bgrstr:
        call    vesa20_drawbackground_stretch
;        call    [draw_pointer]
        call    __sys_draw_pointer
        ret
;-----------------------------------------------------------------------------
align 4
syscall_putimage:                       ; PutImage
sys_putimage:
        test    ecx, 0x80008000
        jnz     .exit
        test    ecx, 0x0000FFFF
        jz      .exit
        test    ecx, 0xFFFF0000
        jnz     @f
;--------------------------------------
align 4
.exit:
        ret
;--------------------------------------
align 4
@@:
        mov     edi, [current_slot]
        add     dx, word[edi+APPDATA.wnd_clientbox.top]
        rol     edx, 16
        add     dx, word[edi+APPDATA.wnd_clientbox.left]
        rol     edx, 16
;--------------------------------------
align 4
.forced:
        push    ebp esi 0
        mov     ebp, putimage_get24bpp
        mov     esi, putimage_init24bpp
;--------------------------------------
align 4
sys_putimage_bpp:
        call    vesa20_putimage
        pop     ebp esi ebp
        ret
;        jmp     [draw_pointer]
;-----------------------------------------------------------------------------
align 4
sys_putimage_palette:
; ebx = pointer to image
; ecx = [xsize]*65536 + [ysize]
; edx = [xstart]*65536 + [ystart]
; esi = number of bits per pixel, must be 8, 24 or 32
; edi = pointer to palette
; ebp = row delta
        mov     eax, [CURRENT_TASK]
        shl     eax, 8
        add     dx, word [eax+SLOT_BASE+APPDATA.wnd_clientbox.top]
        rol     edx, 16
        add     dx, word [eax+SLOT_BASE+APPDATA.wnd_clientbox.left]
        rol     edx, 16
;--------------------------------------
align 4
.forced:
        cmp     esi, 1
        jnz     @f
        push    edi
        mov     eax, [edi+4]
        sub     eax, [edi]
        push    eax
        push    dword [edi]
        push    0ffffff80h
        mov     edi, esp
        call    put_mono_image
        add     esp, 12
        pop     edi
        ret
;--------------------------------------
align 4
@@:
        cmp     esi, 2
        jnz     @f
        push    edi
        push    0ffffff80h
        mov     edi, esp
        call    put_2bit_image
        pop     eax
        pop     edi
        ret
;--------------------------------------
align 4
@@:
        cmp     esi, 4
        jnz     @f
        push    edi
        push    0ffffff80h
        mov     edi, esp
        call    put_4bit_image
        pop     eax
        pop     edi
        ret
;--------------------------------------
align 4
@@:
        push    ebp esi ebp
        cmp     esi, 8
        jnz     @f
        mov     ebp, putimage_get8bpp
        mov     esi, putimage_init8bpp
        jmp     sys_putimage_bpp
;--------------------------------------
align 4
@@:
        cmp     esi, 9
        jnz     @f
        mov     ebp, putimage_get9bpp
        mov     esi, putimage_init9bpp
        jmp     sys_putimage_bpp
;--------------------------------------
align 4
@@:
        cmp     esi, 15
        jnz     @f
        mov     ebp, putimage_get15bpp
        mov     esi, putimage_init15bpp
        jmp     sys_putimage_bpp
;--------------------------------------
align 4
@@:
        cmp     esi, 16
        jnz     @f
        mov     ebp, putimage_get16bpp
        mov     esi, putimage_init16bpp
        jmp     sys_putimage_bpp
;--------------------------------------
align 4
@@:
        cmp     esi, 24
        jnz     @f
        mov     ebp, putimage_get24bpp
        mov     esi, putimage_init24bpp
        jmp     sys_putimage_bpp
;--------------------------------------
align 4
@@:
        cmp     esi, 32
        jnz     @f
        mov     ebp, putimage_get32bpp
        mov     esi, putimage_init32bpp
        jmp     sys_putimage_bpp
;--------------------------------------
align 4
@@:
        pop     ebp esi ebp
        ret
;-----------------------------------------------------------------------------
align 4
put_mono_image:
        push    ebp esi ebp
        mov     ebp, putimage_get1bpp
        mov     esi, putimage_init1bpp
        jmp     sys_putimage_bpp
;-----------------------------------------------------------------------------
align 4
put_2bit_image:
        push    ebp esi ebp
        mov     ebp, putimage_get2bpp
        mov     esi, putimage_init2bpp
        jmp     sys_putimage_bpp
;-----------------------------------------------------------------------------
align 4
put_4bit_image:
        push    ebp esi ebp
        mov     ebp, putimage_get4bpp
        mov     esi, putimage_init4bpp
        jmp     sys_putimage_bpp
;-----------------------------------------------------------------------------
align 4
putimage_init24bpp:
        lea     eax, [eax*3]
putimage_init8bpp:
putimage_init9bpp:
        ret
;-----------------------------------------------------------------------------
align 16
putimage_get24bpp:
        movzx   eax, byte [esi+2]
        shl     eax, 16
        mov     ax, [esi]
        add     esi, 3
        ret     4
;-----------------------------------------------------------------------------
align 16
putimage_get8bpp:
        movzx   eax, byte [esi]
        push    edx
        mov     edx, [esp+8]
        mov     eax, [edx+eax*4]
        pop     edx
        inc     esi
        ret     4
;-----------------------------------------------------------------------------
align 16
putimage_get9bpp:
        lodsb
        mov     ah, al
        shl     eax, 8
        mov     al, ah
        ret     4
;-----------------------------------------------------------------------------
align 4
putimage_init1bpp:
        add     eax, ecx
        push    ecx
        add     eax, 7
        add     ecx, 7
        shr     eax, 3
        shr     ecx, 3
        sub     eax, ecx
        pop     ecx
        ret
;-----------------------------------------------------------------------------
align 16
putimage_get1bpp:
        push    edx
        mov     edx, [esp+8]
        mov     al, [edx]
        add     al, al
        jnz     @f
        lodsb
        adc     al, al
@@:
        mov     [edx], al
        sbb     eax, eax
        and     eax, [edx+8]
        add     eax, [edx+4]
        pop     edx
        ret     4
;-----------------------------------------------------------------------------
align 4
putimage_init2bpp:
        add     eax, ecx
        push    ecx
        add     ecx, 3
        add     eax, 3
        shr     ecx, 2
        shr     eax, 2
        sub     eax, ecx
        pop     ecx
        ret
;-----------------------------------------------------------------------------
align 16
putimage_get2bpp:
        push    edx
        mov     edx, [esp+8]
        mov     al, [edx]
        mov     ah, al
        shr     al, 6
        shl     ah, 2
        jnz     .nonewbyte
        lodsb
        mov     ah, al
        shr     al, 6
        shl     ah, 2
        add     ah, 1
.nonewbyte:
        mov     [edx], ah
        mov     edx, [edx+4]
        movzx   eax, al
        mov     eax, [edx+eax*4]
        pop     edx
        ret     4
;-----------------------------------------------------------------------------
align 4
putimage_init4bpp:
        add     eax, ecx
        push    ecx
        add     ecx, 1
        add     eax, 1
        shr     ecx, 1
        shr     eax, 1
        sub     eax, ecx
        pop     ecx
        ret
;-----------------------------------------------------------------------------
align 16
putimage_get4bpp:
        push    edx
        mov     edx, [esp+8]
        add     byte [edx], 80h
        jc      @f
        movzx   eax, byte [edx+1]
        mov     edx, [edx+4]
        and     eax, 0x0F
        mov     eax, [edx+eax*4]
        pop     edx
        ret     4
@@:
        movzx   eax, byte [esi]
        add     esi, 1
        mov     [edx+1], al
        shr     eax, 4
        mov     edx, [edx+4]
        mov     eax, [edx+eax*4]
        pop     edx
        ret     4
;-----------------------------------------------------------------------------
align 4
putimage_init32bpp:
        shl     eax, 2
        ret
;-----------------------------------------------------------------------------
align 16
putimage_get32bpp:
        lodsd
        ret     4
;-----------------------------------------------------------------------------
align 4
putimage_init15bpp:
putimage_init16bpp:
        add     eax, eax
        ret
;-----------------------------------------------------------------------------
align 16
putimage_get15bpp:
; 0RRRRRGGGGGBBBBB -> 00000000RRRRR000GGGGG000BBBBB000
        push    ecx edx
        movzx   eax, word [esi]
        add     esi, 2
        mov     ecx, eax
        mov     edx, eax
        and     eax, 0x1F
        and     ecx, 0x1F shl 5
        and     edx, 0x1F shl 10
        shl     eax, 3
        shl     ecx, 6
        shl     edx, 9
        or      eax, ecx
        or      eax, edx
        pop     edx ecx
        ret     4
;-----------------------------------------------------------------------------
align 16
putimage_get16bpp:
; RRRRRGGGGGGBBBBB -> 00000000RRRRR000GGGGGG00BBBBB000
        push    ecx edx
        movzx   eax, word [esi]
        add     esi, 2
        mov     ecx, eax
        mov     edx, eax
        and     eax, 0x1F
        and     ecx, 0x3F shl 5
        and     edx, 0x1F shl 11
        shl     eax, 3
        shl     ecx, 5
        shl     edx, 8
        or      eax, ecx
        or      eax, edx
        pop     edx ecx
        ret     4
;-----------------------------------------------------------------------------
;align 4
; eax x beginning
; ebx y beginning
; ecx x end
        ; edx y end
; edi color
;__sys_drawbar:
;        mov     esi, [current_slot]
;        add     eax, [esi+APPDATA.wnd_clientbox.left]
;        add     ecx, [esi+APPDATA.wnd_clientbox.left]
;        add     ebx, [esi+APPDATA.wnd_clientbox.top]
;        add     edx, [esi+APPDATA.wnd_clientbox.top]
;--------------------------------------
;align 4
;.forced:
;        call    vesa20_drawbar
;        call    [draw_pointer]
;        ret
;-----------------------------------------------------------------------------
align 4
kb_write_wait_ack:
 
        push    ecx edx
 
        mov     dl, al
        mov     ecx, 0x1ffff; last 0xffff, new value in view of fast CPU's
.wait_output_ready:
        in      al, 0x64
        test    al, 2
        jz      @f
        loop    .wait_output_ready
        mov     ah, 1
        jmp     .nothing
@@:
        mov     al, dl
        out     0x60, al
        mov     ecx, 0xfffff; last 0xffff, new value in view of fast CPU's
.wait_ack:
        in      al, 0x64
        test    al, 1
        jnz     @f
        loop    .wait_ack
        mov     ah, 1
        jmp     .nothing
@@:
        in      al, 0x60
        xor     ah, ah
 
.nothing:
        pop     edx ecx
 
        ret
;-----------------------------------------------------------------------------
 
setmouse:  ; set mousepicture -pointer
           ; ps2 mouse enable
 
;        mov     [MOUSE_PICTURE], dword mousepointer
 
        cli
 
        ret
 
if used _rdtsc
_rdtsc:
        bt      [cpu_caps], CAPS_TSC
        jnc     ret_rdtsc
        rdtsc
        ret
   ret_rdtsc:
        mov     edx, 0xffffffff
        mov     eax, 0xffffffff
        ret
end if
 
sys_msg_board_str:
 
        pushad
   @@:
        cmp     [esi], byte 0
        je      @f
        mov     ebx, 1
        movzx   ecx, byte [esi]
        call    sys_msg_board
        inc     esi
        jmp     @b
   @@:
        popad
        ret
 
sys_msg_board_byte:
; in: al = byte to display
; out: nothing
; destroys: nothing
        pushad
        mov     ecx, 2
        shl     eax, 24
        jmp     @f
 
sys_msg_board_word:
; in: ax = word to display
; out: nothing
; destroys: nothing
        pushad
        mov     ecx, 4
        shl     eax, 16
        jmp     @f
 
sys_msg_board_dword:
; in: eax = dword to display
; out: nothing
; destroys: nothing
        pushad
        mov     ecx, 8
@@:
        push    ecx
        rol     eax, 4
        push    eax
        and     al, 0xF
        cmp     al, 10
        sbb     al, 69h
        das
        mov     cl, al
        xor     ebx, ebx
        inc     ebx
        call    sys_msg_board
        pop     eax
        pop     ecx
        loop    @b
        popad
        ret
 
msg_board_data_size = 65536 ; Must be power of two
 
uglobal
msg_board_data  rb  msg_board_data_size
msg_board_count dd  ?
endg
 
iglobal
msg_board_pos   dd  42*6*65536+10 ; for printing debug output on the screen
endg
 
sys_msg_board:
; ebx=1 -> write, cl = byte to write
; ebx=2 -> read, ecx=0 -> no data, ecx=1 -> data in al
        push    eax ebx
        mov     eax, ebx
        mov     ebx, ecx
        mov     ecx, [msg_board_count]
        cmp     eax, 1
        jne     .read
 
if defined debug_com_base
        push    dx ax
@@: ; wait for empty transmit register
        mov     dx, debug_com_base+5
        in      al, dx
        test    al, 1 shl 5
        jz      @r
        mov     dx, debug_com_base      ; Output the byte
        mov     al, bl
        out     dx, al
        pop     ax dx
end if
 
        mov     [msg_board_data+ecx], bl
        cmp     byte [debug_direct_print], 1
        jnz     .end
        pusha
        lea     edx, [msg_board_data+ecx]
        mov     ecx, 0x40FFFFFF
        mov     ebx, [msg_board_pos]
        mov     edi, 1
        mov     esi, 1
        call    dtext
        popa
        add     word [msg_board_pos+2], 6
        cmp     word [msg_board_pos+2], 105*6
        jnc     @f
        cmp     bl, 10
        jnz     .end
@@:
        mov     word [msg_board_pos+2], 42*6
        add     word [msg_board_pos], 10
        mov     eax, [_display.height]
        sub     eax, 10
        cmp     ax, word [msg_board_pos]
        jnc     @f
        mov     word [msg_board_pos], 10
@@:
        pusha
        mov     eax, [msg_board_pos]
        movzx   ebx, ax
        shr     eax, 16
        mov     edx, 105*6
        xor     ecx, ecx
        mov     edi, 1
        mov     esi, 9
@@:
        call    hline
        inc     ebx
        dec     esi
        jnz     @b
        popa
.end:
        inc     ecx
        and     ecx, msg_board_data_size - 1
        mov     [msg_board_count], ecx
.ret:
        pop     ebx eax
        ret
 
@@:
        mov     [esp+32], ecx
        mov     [esp+20], ecx
        jmp     .ret
 
.read:
        cmp     eax, 2
        jne     .ret
        test    ecx, ecx
        jz      @b
        add     esp, 8  ; returning data in ebx and eax, so no need to restore them
        mov     eax, msg_board_data+1
        mov     ebx, msg_board_data
        movzx   edx, byte [ebx]
        call    memmove
        dec     [msg_board_count]
        mov     [esp + 32], edx ;eax
        mov     [esp + 20], dword 1
        ret
 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; 66 sys function.                                                ;;
;; in eax=66,ebx in [0..5],ecx,edx                                 ;;
;; out eax                                                         ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
iglobal
align 4
f66call:
           dd sys_process_def.1   ; 1 = set keyboard mode
           dd sys_process_def.2   ; 2 = get keyboard mode
           dd sys_process_def.3   ; 3 = get keyboard ctrl, alt, shift
           dd sys_process_def.4   ; 4 = set system-wide hotkey
           dd sys_process_def.5   ; 5 = delete installed hotkey
           dd sys_process_def.6   ; 6 = disable input, work only hotkeys
           dd sys_process_def.7   ; 7 = enable input, opposition to f.66.6
endg
;-----------------------------------------------------------------------------
align 4
sys_process_def:
        dec     ebx
        cmp     ebx, 7
        jae     .not_support    ;if >=8 then or eax,-1
 
        mov     edi, [CURRENT_TASK]
        jmp     dword [f66call+ebx*4]
 
.not_support:
        or      eax, -1
        ret
;-----------------------------------------------------------------------------
align 4
.1:
        shl     edi, 8
        mov     [edi+SLOT_BASE + APPDATA.keyboard_mode], cl
 
        ret
;-----------------------------------------------------------------------------
align 4
.2:                             ; 2 = get keyboard mode
        shl     edi, 8
        movzx   eax, byte [SLOT_BASE+edi + APPDATA.keyboard_mode]
        mov     [esp+32], eax
        ret
;-----------------------------------------------------------------------------
align 4
.3:                             ;3 = get keyboard ctrl, alt, shift
        mov     eax, [kb_state]
        mov     [esp+32], eax
        ret
;-----------------------------------------------------------------------------
align 4
.4:
        mov     eax, hotkey_list
@@:
        cmp     dword [eax+8], 0
        jz      .found_free
        add     eax, 16
        cmp     eax, hotkey_list+16*256
        jb      @b
        mov     dword [esp+32], 1
        ret
.found_free:
        mov     [eax+8], edi
        mov     [eax+4], edx
        movzx   ecx, cl
        lea     ecx, [hotkey_scancodes+ecx*4]
        mov     edx, [ecx]
        mov     [eax], edx
        mov     [ecx], eax
        mov     [eax+12], ecx
        test    edx, edx
        jz      @f
        mov     [edx+12], eax
@@:
        and     dword [esp+32], 0
        ret
;-----------------------------------------------------------------------------
align 4
.5:
        movzx   ebx, cl
        lea     ebx, [hotkey_scancodes+ebx*4]
        mov     eax, [ebx]
.scan:
        test    eax, eax
        jz      .notfound
        cmp     [eax+8], edi
        jnz     .next
        cmp     [eax+4], edx
        jz      .found
.next:
        mov     eax, [eax]
        jmp     .scan
.notfound:
        mov     dword [esp+32], 1
        ret
.found:
        mov     ecx, [eax]
        jecxz   @f
        mov     edx, [eax+12]
        mov     [ecx+12], edx
@@:
        mov     ecx, [eax+12]
        mov     edx, [eax]
        mov     [ecx], edx
        xor     edx, edx
        mov     [eax+4], edx
        mov     [eax+8], edx
        mov     [eax+12], edx
        mov     [eax], edx
        mov     [esp+32], edx
        ret
;-----------------------------------------------------------------------------
align 4
.6:
        pushfd
        cli
        mov     eax, [PID_lock_input]
        test    eax, eax
        jnz     @f
; get current PID
        mov     eax, [CURRENT_TASK]
        shl     eax, 5
        mov     eax, [eax+CURRENT_TASK+TASKDATA.pid]
; set current PID for lock input
        mov     [PID_lock_input], eax
@@:
        popfd
        ret
;-----------------------------------------------------------------------------
align 4
.7:
        mov     eax, [PID_lock_input]
        test    eax, eax
        jz      @f
; get current PID
        mov     ebx, [CURRENT_TASK]
        shl     ebx, 5
        mov     ebx, [ebx+CURRENT_TASK+TASKDATA.pid]
; compare current lock input with current PID
        cmp     ebx, eax
        jne     @f
 
        xor     eax, eax
        mov     [PID_lock_input], eax
@@:
        ret
;-----------------------------------------------------------------------------
uglobal
  PID_lock_input dd 0x0
endg
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; 61 sys function.                                                ;;
;; in eax=61,ebx in [1..3]                                         ;;
;; out eax                                                         ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
iglobal
align 4
f61call:
           dd sys_gs.1   ; resolution
           dd sys_gs.2   ; bits per pixel
           dd sys_gs.3   ; bytes per scanline
endg
 
 
align 4
 
sys_gs:                         ; direct screen access
        dec     ebx
        cmp     ebx, 2
        ja      .not_support
        jmp     dword [f61call+ebx*4]
.not_support:
        or      [esp+32], dword -1
        ret
 
 
.1:                             ; resolution
        mov     eax, [_display.width]
        shl     eax, 16
        mov     ax, word [_display.height]
        mov     [esp+32], eax
        ret
.2:                             ; bits per pixel
        mov     eax, [_display.bits_per_pixel]
        mov     [esp+32], eax
        ret
.3:                             ; bytes per scanline
        mov     eax, [_display.lfb_pitch]
        mov     [esp+32], eax
        ret
 
align 4  ;  system functions
 
syscall_setpixel:                       ; SetPixel
 
        mov     eax, ebx
        mov     ebx, ecx
        mov     ecx, edx
        mov     edx, [TASK_BASE]
        add     eax, [edx-twdw+WDATA.box.left]
        add     ebx, [edx-twdw+WDATA.box.top]
        mov     edi, [current_slot]
        add     eax, [edi+APPDATA.wnd_clientbox.left]
        add     ebx, [edi+APPDATA.wnd_clientbox.top]
        xor     edi, edi ; no force
        and     ecx, 0xFBFFFFFF  ;negate 0x04000000 save to mouseunder area
;        jmp     [putpixel]
        jmp     __sys_putpixel
 
align 4
 
syscall_writetext:                      ; WriteText
 
        mov     eax, [TASK_BASE]
        mov     ebp, [eax-twdw+WDATA.box.left]
        push    esi
        mov     esi, [current_slot]
        add     ebp, [esi+APPDATA.wnd_clientbox.left]
        shl     ebp, 16
        add     ebp, [eax-twdw+WDATA.box.top]
        add     bp, word[esi+APPDATA.wnd_clientbox.top]
        pop     esi
        test    ecx, 0x08000000  ; redirect the output to the user area
        jnz     @f
        add     ebx, ebp
align 4
@@:
        mov     eax, edi
        test    ecx, 0x08000000  ; redirect the output to the user area
        jnz     dtext
        xor     edi, edi
        jmp     dtext
 
align 4
 
syscall_drawrect:                       ; DrawRect
 
        mov     edi, edx ; color + gradient
        and     edi, 0x80FFFFFF
        test    bx, bx  ; x.size
        je      .drectr
        test    cx, cx ; y.size
        je      .drectr
 
        mov     eax, ebx ; bad idea
        mov     ebx, ecx
 
        movzx   ecx, ax ; ecx - x.size
        shr     eax, 16 ; eax - x.coord
        movzx   edx, bx ; edx - y.size
        shr     ebx, 16 ; ebx - y.coord
        mov     esi, [current_slot]
 
        add     eax, [esi + APPDATA.wnd_clientbox.left]
        add     ebx, [esi + APPDATA.wnd_clientbox.top]
        add     ecx, eax
        add     edx, ebx
;        jmp     [drawbar]
        jmp     vesa20_drawbar
.drectr:
        ret
 
align 4
syscall_getscreensize:                  ; GetScreenSize
        mov     ax, word [_display.width]
        dec     ax
        shl     eax, 16
        mov     ax, word [_display.height]
        dec     ax
        mov     [esp + 32], eax
        ret
;-----------------------------------------------------------------------------
align 4
syscall_cdaudio:
; ECX - position of CD/DVD-drive
; from 0=Primary Master to 3=Secondary Slave for first IDE contr.
; from 4=Primary Master to 7=Secondary Slave for second IDE contr.
; from 8=Primary Master to 11=Secondary Slave for third IDE contr.
        cmp     ecx, 11
        ja      .exit
 
        mov     eax, ecx
        shr     eax, 2
        lea     eax, [eax*5]
        mov     al, [eax+DRIVE_DATA+1]
 
        push    ecx ebx
        mov     ebx, ecx
        and     ebx, 11b
        shl     ebx, 1
        mov     cl, 6
        sub     cl, bl
        shr     al, cl
        test    al, 2 ; it's not an ATAPI device
        pop     ebx ecx
 
        jz      .exit
 
        cmp     ebx, 4
        je      .eject
 
        cmp     ebx, 5
        je      .load
;--------------------------------------
.exit:
        ret
;--------------------------------------
.load:
        call    .reserve
        call    LoadMedium
        jmp     .free
;--------------------------------------
.eject:
        call    .reserve
        call    clear_CD_cache
        call    allow_medium_removal
        call    EjectMedium
        jmp     .free
;--------------------------------------
.reserve:
        call    reserve_cd
 
        mov     ebx, ecx
        inc     ebx
        mov     [cdpos], ebx
 
        mov     eax, ecx
        shr     eax, 1
        and     eax, 1
        inc     eax
        mov     [ChannelNumber], al
        mov     eax, ecx
        and     eax, 1
        mov     [DiskNumber], al
        call    reserve_cd_channel
        ret
;--------------------------------------
.free:
        call    free_cd_channel
        and     [cd_status], 0
        ret
;-----------------------------------------------------------------------------
align 4
syscall_getpixel_WinMap:                       ; GetPixel WinMap
        cmp     ebx, [_display.width]
        jb      @f
        cmp     ecx, [_display.height]
        jb      @f
        xor     eax, eax
        jmp     .store
;--------------------------------------
align 4
@@:
        mov     eax, [d_width_calc_area + ecx*4]
        add     eax, [_display.win_map]
        movzx   eax, byte[eax+ebx]        ; get value for current point
;--------------------------------------
align 4
.store:
        mov     [esp + 32], eax
        ret
;-----------------------------------------------------------------------------
align 4
syscall_getpixel:                       ; GetPixel
        mov     ecx, [_display.width]
        xor     edx, edx
        mov     eax, ebx
        div     ecx
        mov     ebx, edx
        xchg    eax, ebx
        and     ecx, 0xFBFFFFFF  ;negate 0x04000000 use mouseunder area
        call    dword [GETPIXEL]; eax - x, ebx - y
        mov     [esp + 32], ecx
        ret
;-----------------------------------------------------------------------------
align 4
syscall_getarea:
;eax = 36
;ebx = pointer to bufer for img BBGGRRBBGGRR...
;ecx = [size x]*65536 + [size y]
;edx = [start x]*65536 + [start y]
        pushad
        mov     edi, ebx
        mov     eax, edx
        shr     eax, 16
        mov     ebx, edx
        and     ebx, 0xffff
        dec     eax
        dec     ebx
     ; eax - x, ebx - y
        mov     edx, ecx
 
        shr     ecx, 16
        and     edx, 0xffff
        mov     esi, ecx
     ; ecx - size x, edx - size y
 
        mov     ebp, edx
        dec     ebp
        lea     ebp, [ebp*3]
 
        imul    ebp, esi
 
        mov     esi, ecx
        dec     esi
        lea     esi, [esi*3]
 
        add     ebp, esi
        add     ebp, edi
 
        add     ebx, edx
;--------------------------------------
align 4
.start_y:
        push    ecx edx
;--------------------------------------
align 4
.start_x:
        push    eax ebx ecx
        add     eax, ecx
 
        and     ecx, 0xFBFFFFFF  ;negate 0x04000000 use mouseunder area
        call    dword [GETPIXEL]; eax - x, ebx - y
 
        mov     [ebp], cx
        shr     ecx, 16
        mov     [ebp+2], cl
 
        pop     ecx ebx eax
        sub     ebp, 3
        dec     ecx
        jnz     .start_x
        pop     edx ecx
        dec     ebx
        dec     edx
        jnz     .start_y
        popad
        ret
;-----------------------------------------------------------------------------
align 4
syscall_putarea_backgr:
;eax = 25
;ebx = pointer to bufer for img BBGGRRBBGGRR...
;ecx = [size x]*65536 + [size y]
;edx = [start x]*65536 + [start y]
        pushad
        mov     edi, ebx
        mov     eax, edx
        shr     eax, 16
        mov     ebx, edx
        and     ebx, 0xffff
        dec     eax
        dec     ebx
; eax - x, ebx - y
        mov     edx, ecx
        shr     ecx, 16
        and     edx, 0xffff
        mov     esi, ecx
; ecx - size x, edx - size y
        mov     ebp, edx
        dec     ebp
        shl     ebp, 2
 
        imul    ebp, esi
 
        mov     esi, ecx
        dec     esi
        shl     esi, 2
 
        add     ebp, esi
        add     ebp, edi
 
        add     ebx, edx
;--------------------------------------
align 4
.start_y:
        push    ecx edx
;--------------------------------------
align 4
.start_x:
        push    eax ecx
        add     eax, ecx
 
        mov     ecx, [ebp]
        rol     ecx, 8
        test    cl, cl        ; transparensy = 0
        jz      .no_put
 
        xor     cl, cl
        ror     ecx, 8
 
        pushad
        mov     edx, [d_width_calc_area + ebx*4]
        add     edx, [_display.win_map]
        movzx   edx, byte [eax+edx]
        cmp     dl, byte 1
        jne     @f
 
        call    dword [PUTPIXEL]; eax - x, ebx - y
;--------------------------------------
align 4
@@:
        popad
;--------------------------------------
align 4
.no_put:
        pop     ecx eax
 
        sub     ebp, 4
        dec     ecx
        jnz     .start_x
 
        pop     edx ecx
        dec     ebx
        dec     edx
        jnz     .start_y
 
        popad
        ret
;-----------------------------------------------------------------------------
align 4
syscall_drawline:                       ; DrawLine
 
        mov     edi, [TASK_BASE]
        movzx   eax, word[edi-twdw+WDATA.box.left]
        mov     ebp, eax
        mov     esi, [current_slot]
        add     ebp, [esi+APPDATA.wnd_clientbox.left]
        add     ax, word[esi+APPDATA.wnd_clientbox.left]
        add     ebp, ebx
        shl     eax, 16
        movzx   ebx, word[edi-twdw+WDATA.box.top]
        add     eax, ebp
        mov     ebp, ebx
        add     ebp, [esi+APPDATA.wnd_clientbox.top]
        add     bx, word[esi+APPDATA.wnd_clientbox.top]
        add     ebp, ecx
        shl     ebx, 16
        xor     edi, edi
        add     ebx, ebp
        mov     ecx, edx
;        jmp     [draw_line]
        jmp     __sys_draw_line
 
 
align 4
syscall_reserveportarea:                ; ReservePortArea and FreePortArea
 
        call    r_f_port_area
        mov     [esp+32], eax
        ret
 
align 4
syscall_threads:                        ; CreateThreads
;
;   ecx=thread entry point
;   edx=thread stack pointer
;
; on return : eax = pid
 
        xor     ebx, ebx
        call    new_sys_threads
 
        mov     [esp+32], eax
        ret
 
align 4
 
paleholder:
        ret
;------------------------------------------------------------------------------
align 4
calculate_fast_getting_offset_for_WinMapAddress:
; calculate data area for fast getting offset to _WinMapAddress
        xor     eax, eax
        mov     ecx, [_display.height]
        mov     edi, d_width_calc_area
        cld
@@:
        stosd
        add     eax, [_display.width]
        dec     ecx
        jnz     @r
        ret
;------------------------------------------------------------------------------
align 4
calculate_fast_getting_offset_for_LFB:
; calculate data area for fast getting offset to LFB
        xor     eax, eax
        mov     ecx, [_display.height]
        mov     edi, BPSLine_calc_area
        cld
@@:
        stosd
        add     eax, [_display.lfb_pitch]
        dec     ecx
        jnz     @r
        ret
;------------------------------------------------------------------------------
align 4
set_screen:
; in:
; eax - new Screen_Max_X
; ecx - new BytesPerScanLine
; edx - new Screen_Max_Y
 
        pushfd
        cli
 
        mov     [_display.lfb_pitch], ecx
 
        mov     [screen_workarea.right], eax
        mov     [screen_workarea.bottom], edx
 
        push    ebx
        push    esi
        push    edi
 
        pushad
 
        cmp     [do_not_touch_winmap], 1
        je      @f
 
        stdcall kernel_free, [_display.win_map]
 
        mov     eax, [_display.width]
        mul     [_display.height]
        mov     [_display.win_map_size], eax
 
        stdcall kernel_alloc, eax
        mov     [_display.win_map], eax
        test    eax, eax
        jz      .epic_fail
; store for f.18.24
        mov     eax, [_display.width]
        mov     [display_width_standard], eax
 
        mov     eax, [_display.height]
        mov     [display_height_standard], eax
@@:
        call    calculate_fast_getting_offset_for_WinMapAddress
; for Qemu or non standart video cards
; Unfortunately [BytesPerScanLine] does not always
;                             equal to [_display.width] * [ScreenBPP] / 8
        call    calculate_fast_getting_offset_for_LFB
        popad
 
        call    repos_windows
        xor     eax, eax
        xor     ebx, ebx
        mov     ecx, [_display.width]
        mov     edx, [_display.height]
        dec     ecx
        dec     edx
        call    calculatescreen
        pop     edi
        pop     esi
        pop     ebx
 
        popfd
        ret
 
.epic_fail:
        hlt                     ; Houston, we've had a problem
 
; --------------- APM ---------------------
uglobal
apm_entry       dp      0
apm_vf          dd      0
endg
 
align 4
sys_apm:
        xor     eax, eax
        cmp     word [apm_vf], ax       ; Check APM BIOS enable
        jne     @f
        inc     eax
        or      dword [esp + 44], eax   ; error
        add     eax, 7
        mov     dword [esp + 32], eax   ; 32-bit protected-mode interface not supported
        ret
 
@@:
;       xchg    eax, ecx
;       xchg    ebx, ecx
 
        cmp     dx, 3
        ja      @f
        and     [esp + 44], byte 0xfe    ; emulate func 0..3 as func 0
        mov     eax, [apm_vf]
        mov     [esp + 32], eax
        shr     eax, 16
        mov     [esp + 28], eax
        ret
 
@@:
 
        mov     esi, [master_tab+(OS_BASE shr 20)]
        xchg    [master_tab], esi
        push    esi
        mov     edi, cr3
        mov     cr3, edi                ;flush TLB
 
        call    pword [apm_entry]       ;call APM BIOS
 
        xchg    eax, [esp]
        mov     [master_tab], eax
        mov     eax, cr3
        mov     cr3, eax
        pop     eax
 
        mov     [esp + 4 ], edi
        mov     [esp + 8], esi
        mov     [esp + 20], ebx
        mov     [esp + 24], edx
        mov     [esp + 28], ecx
        mov     [esp + 32], eax
        setc    al
        and     [esp + 44], byte 0xfe
        or      [esp + 44], al
        ret
; -----------------------------------------
 
align 4
undefined_syscall:                      ; Undefined system call
        mov     [esp + 32], dword -1
        ret
 
align 4
; check if given memory region lays in lower 2gb (userspace memory) or not
is_region_userspace:
; in:  eax = base
;      ebx = len
; out: eax = 1 if region in userspace memory, 0 if not
        push    esi edi ecx
 
        cmp     eax, OS_BASE
        ja      @f
 
        add     eax, ebx
        cmp     eax, OS_BASE
        ja      @f
 
        mov     eax, 1
        jmp     .ret
@@:
        xor     eax, eax
.ret:
        pop     ecx edi esi
        ret 
 
if ~ lang eq sp
diff16 "end of .text segment",0,$
end if
 
include "data32.inc"
 
__REV__ = __REV
 
if ~ lang eq sp
diff16 "end of kernel code",0,$
end if

Rev 8248	Rev 8249
1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
2	;;	2	;;
3	;; Copyright (C) KolibriOS team 2004-2020. All rights reserved.	3	;; Copyright (C) KolibriOS team 2004-2020. All rights reserved.
4	;; PROGRAMMING:	4	;; PROGRAMMING:
5	;; Ivan Poddubny	5	;; Ivan Poddubny
6	;; Marat Zakiyanov (Mario79)	6	;; Marat Zakiyanov (Mario79)
7	;; VaStaNi	7	;; VaStaNi
8	;; Trans	8	;; Trans
9	;; Mihail Semenyako (mike.dld)	9	;; Mihail Semenyako (mike.dld)
10	;; Sergey Kuzmin (Wildwest)	10	;; Sergey Kuzmin (Wildwest)
11	;; Andrey Halyavin (halyavin)	11	;; Andrey Halyavin (halyavin)
12	;; Mihail Lisovin (Mihasik)	12	;; Mihail Lisovin (Mihasik)
13	;; Andrey Ignatiev (andrew_programmer)	13	;; Andrey Ignatiev (andrew_programmer)
14	;; NoName	14	;; NoName
15	;; Evgeny Grechnikov (Diamond)	15	;; Evgeny Grechnikov (Diamond)
16	;; Iliya Mihailov (Ghost)	16	;; Iliya Mihailov (Ghost)
17	;; Sergey Semyonov (Serge)	17	;; Sergey Semyonov (Serge)
18	;; Johnny_B	18	;; Johnny_B
19	;; SPraid (simba)	19	;; SPraid (simba)
20	;; Hidnplayr	20	;; Hidnplayr
21	;; Alexey Teplov ()	21	;; Alexey Teplov ()
22	;; Rus	22	;; Rus
23	;; Nable	23	;; Nable
24	;; shurf	24	;; shurf
25	;; Alver	25	;; Alver
26	;; Maxis	26	;; Maxis
27	;; Galkov	27	;; Galkov
28	;; CleverMouse	28	;; CleverMouse
29	;; tsdima	29	;; tsdima
30	;; turbanoff	30	;; turbanoff
31	;; Asper	31	;; Asper
32	;; art_zh	32	;; art_zh
33	;;	33	;;
34	;; Data in this file was originally part of MenuetOS project which is	34	;; Data in this file was originally part of MenuetOS project which is
35	;; distributed under the terms of GNU GPL. It is modified and redistributed as	35	;; distributed under the terms of GNU GPL. It is modified and redistributed as
36	;; part of KolibriOS project under the terms of GNU GPL.	36	;; part of KolibriOS project under the terms of GNU GPL.
37	;;	37	;;
38	;; Copyright (C) MenuetOS 2000-2004 Ville Mikael Turjanmaa	38	;; Copyright (C) MenuetOS 2000-2004 Ville Mikael Turjanmaa
39	;; PROGRAMMING:	39	;; PROGRAMMING:
40	;;	40	;;
41	;; Ville Mikael Turjanmaa, villemt@itu.jyu.fi	41	;; Ville Mikael Turjanmaa, villemt@itu.jyu.fi
42	;; - main os coding/design	42	;; - main os coding/design
43	;; Jan-Michael Brummer, BUZZ2@gmx.de	43	;; Jan-Michael Brummer, BUZZ2@gmx.de
44	;; Felix Kaiser, info@felix-kaiser.de	44	;; Felix Kaiser, info@felix-kaiser.de
45	;; Paolo Minazzi, paolo.minazzi@inwind.it	45	;; Paolo Minazzi, paolo.minazzi@inwind.it
46	;; quickcode@mail.ru	46	;; quickcode@mail.ru
47	;; Alexey, kgaz@crosswinds.net	47	;; Alexey, kgaz@crosswinds.net
48	;; Juan M. Caravaca, bitrider@wanadoo.es	48	;; Juan M. Caravaca, bitrider@wanadoo.es
49	;; kristol@nic.fi	49	;; kristol@nic.fi
50	;; Mike Hibbett, mikeh@oceanfree.net	50	;; Mike Hibbett, mikeh@oceanfree.net
51	;; Lasse Kuusijarvi, kuusijar@lut.fi	51	;; Lasse Kuusijarvi, kuusijar@lut.fi
52	;; Jarek Pelczar, jarekp3@wp.pl	52	;; Jarek Pelczar, jarekp3@wp.pl
53	;;	53	;;
54	;; KolibriOS is distributed in the hope that it will be useful, but WITHOUT ANY	54	;; KolibriOS is distributed in the hope that it will be useful, but WITHOUT ANY
55	;; WARRANTY. No author or distributor accepts responsibility to anyone for the	55	;; WARRANTY. No author or distributor accepts responsibility to anyone for the
56	;; consequences of using it or for whether it serves any particular purpose or	56	;; consequences of using it or for whether it serves any particular purpose or
57	;; works at all, unless he says so in writing. Refer to the GNU General Public	57	;; works at all, unless he says so in writing. Refer to the GNU General Public
58	;; License (the "GPL") for full details.	58	;; License (the "GPL") for full details.
59	;	59	;
60	;; Everyone is granted permission to copy, modify and redistribute KolibriOS,	60	;; Everyone is granted permission to copy, modify and redistribute KolibriOS,
61	;; but only under the conditions described in the GPL. A copy of this license	61	;; but only under the conditions described in the GPL. A copy of this license
62	;; is supposed to have been given to you along with KolibriOS so you can know	62	;; is supposed to have been given to you along with KolibriOS so you can know
63	;; your rights and responsibilities. It should be in a file named COPYING.	63	;; your rights and responsibilities. It should be in a file named COPYING.
64	;; Among other things, the copyright notice and this notice must be preserved	64	;; Among other things, the copyright notice and this notice must be preserved
65	;; on all copies.	65	;; on all copies.
66	;;	66	;;
67	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	67	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
68		68
69	format binary as "mnt"	69	format binary as "mnt"
70		70
71	include 'macros.inc'	71	include 'macros.inc'
72	include 'struct.inc'	72	include 'struct.inc'
73		73
74	$Revision: 8248 $	74	$Revision: 8249 $
75		75
76		76
77	USE_COM_IRQ = 1 ; make irq 3 and irq 4 available for PCI devices	77	USE_COM_IRQ = 1 ; make irq 3 and irq 4 available for PCI devices
78	VESA_1_2_VIDEO = 0 ; enable vesa 1.2 bank switch functions	78	VESA_1_2_VIDEO = 0 ; enable vesa 1.2 bank switch functions
79		79
80	; Enabling the next line will enable serial output console	80	; Enabling the next line will enable serial output console
81	;debug_com_base = 0x3f8 ; 0x3f8 is com1, 0x2f8 is com2, 0x3e8 is com3, 0x2e8 is com4, no irq's are used	81	;debug_com_base = 0x3f8 ; 0x3f8 is com1, 0x2f8 is com2, 0x3e8 is com3, 0x2e8 is com4, no irq's are used
82		82
83	include "proc32.inc"	83	include "proc32.inc"
84	include "kglobals.inc"	84	include "kglobals.inc"
85	include "lang.inc"	85	include "lang.inc"
86	include "encoding.inc"	86	include "encoding.inc"
87		87
88	include "const.inc"	88	include "const.inc"
89		89
90	iglobal	90	iglobal
91	; The following variable, if equal to 1, duplicates debug output to the screen.	91	; The following variable, if equal to 1, duplicates debug output to the screen.
92	debug_direct_print db 0	92	debug_direct_print db 0
93	; Start the first app (LAUNCHER) after kernel is loaded? (1=yes, 2 or 0=no)	93	; Start the first app (LAUNCHER) after kernel is loaded? (1=yes, 2 or 0=no)
94	launcher_start db 1	94	launcher_start db 1
95	endg	95	endg
96		96
97	max_processes = 255	97	max_processes = 255
98	tss_step = 128 + 8192 ; tss & i/o - 65535 ports, * 256=557056*4	98	tss_step = 128 + 8192 ; tss & i/o - 65535 ports, * 256=557056*4
99		99
100	os_stack = os_data_l - gdts ; GDTs	100	os_stack = os_data_l - gdts ; GDTs
101	os_code = os_code_l - gdts	101	os_code = os_code_l - gdts
102	graph_data = 3 + graph_data_l - gdts	102	graph_data = 3 + graph_data_l - gdts
103	tss0 = tss0_l - gdts	103	tss0 = tss0_l - gdts
104	app_code = 3 + app_code_l - gdts	104	app_code = 3 + app_code_l - gdts
105	app_data = 3 + app_data_l - gdts	105	app_data = 3 + app_data_l - gdts
106	app_tls = 3 + tls_data_l - gdts	106	app_tls = 3 + tls_data_l - gdts
107	pci_code_sel = pci_code_32-gdts	107	pci_code_sel = pci_code_32-gdts
108	pci_data_sel = pci_data_32-gdts	108	pci_data_sel = pci_data_32-gdts
109		109
110		110
111	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	111	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
112	;;	112	;;
113	;; Included files:	113	;; Included files:
114	;;	114	;;
115	;; Kernel16.inc	115	;; Kernel16.inc
116	;; - Booteng.inc English text for bootup	116	;; - Booteng.inc English text for bootup
117	;; - Bootcode.inc Hardware setup	117	;; - Bootcode.inc Hardware setup
118	;; - Pci16.inc PCI functions	118	;; - Pci16.inc PCI functions
119	;;	119	;;
120	;; Kernel32.inc	120	;; Kernel32.inc
121	;; - Sys32.inc Process management	121	;; - Sys32.inc Process management
122	;; - Shutdown.inc Shutdown and restart	122	;; - Shutdown.inc Shutdown and restart
123	;; - Fat32.inc Read / write hd	123	;; - Fat32.inc Read / write hd
124	;; - Vesa12.inc Vesa 1.2 driver	124	;; - Vesa12.inc Vesa 1.2 driver
125	;; - Vesa20.inc Vesa 2.0 driver	125	;; - Vesa20.inc Vesa 2.0 driver
126	;; - Vga.inc VGA driver	126	;; - Vga.inc VGA driver
127	;; - Stack.inc Network interface	127	;; - Stack.inc Network interface
128	;; - Mouse.inc Mouse pointer	128	;; - Mouse.inc Mouse pointer
129	;; - Scincode.inc Window skinning	129	;; - Scincode.inc Window skinning
130	;; - Pci32.inc PCI functions	130	;; - Pci32.inc PCI functions
131	;;	131	;;
132	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	132	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
133		133
134	; In bios boot mode the kernel code below is appended to bootbios.bin file.	134	; In bios boot mode the kernel code below is appended to bootbios.bin file.
135	; That is a loading and initialization code that also draws the blue screen	135	; That is a loading and initialization code that also draws the blue screen
136	; menu with svn revision number near top right corner of the screen. This fasm	136	; menu with svn revision number near top right corner of the screen. This fasm
137	; preprocessor code searches for '****' signature inside bootbios.bin and	137	; preprocessor code searches for '****' signature inside bootbios.bin and
138	; places revision number there.	138	; places revision number there.
139	if ~ defined UEFI	139	if ~ defined UEFI
140	bootbios:	140	bootbios:
141	if ~ defined extended_primary_loader	141	if ~ defined extended_primary_loader
142	file 'bootbios.bin'	142	file 'bootbios.bin'
143	else	143	else
144	file 'bootbios.bin.ext_loader'	144	file 'bootbios.bin.ext_loader'
145	end if	145	end if
146	if __REV__ > 0	146	if __REV__ > 0
147	cur_pos = 0	147	cur_pos = 0
148	cnt = 0	148	cnt = 0
149	repeat $ - bootbios	149	repeat $ - bootbios
150	load a byte from %	150	load a byte from %
151	if a = '*'	151	if a = '*'
152	cnt = cnt + 1	152	cnt = cnt + 1
153	else	153	else
154	cnt = 0	154	cnt = 0
155	end if	155	end if
156	if cnt = 4	156	if cnt = 4
157	cur_pos = % - 1	157	cur_pos = % - 1
158	break	158	break
159	end if	159	end if
160	end repeat	160	end repeat
161	store byte ' ' at cur_pos + 1	161	store byte ' ' at cur_pos + 1
162	rev_var = __REV__	162	rev_var = __REV__
163	while rev_var > 0	163	while rev_var > 0
164	store byte rev_var mod 10 + '0' at cur_pos	164	store byte rev_var mod 10 + '0' at cur_pos
165	cur_pos = cur_pos - 1	165	cur_pos = cur_pos - 1
166	rev_var = rev_var / 10	166	rev_var = rev_var / 10
167	end while	167	end while
168	store byte ' ' at cur_pos	168	store byte ' ' at cur_pos
169	store dword ' SVN' at cur_pos - 4	169	store dword ' SVN' at cur_pos - 4
170	end if	170	end if
171	end if	171	end if
172		172
173	use32	173	use32
174	org $+0x10000	174	org $+0x10000
175		175
176	align 4	176	align 4
177	B32:	177	B32:
178	mov ax, os_stack ; Selector for os	178	mov ax, os_stack ; Selector for os
179	mov ds, ax	179	mov ds, ax
180	mov es, ax	180	mov es, ax
181	mov fs, ax	181	mov fs, ax
182	mov gs, ax	182	mov gs, ax
183	mov ss, ax	183	mov ss, ax
184	mov esp, TMP_STACK_TOP ; Set stack	184	mov esp, TMP_STACK_TOP ; Set stack
185		185
186	; CLEAR 0x280000 - HEAP_BASE	186	; CLEAR 0x280000 - HEAP_BASE
187		187
188	xor eax, eax	188	xor eax, eax
189	mov edi, CLEAN_ZONE	189	mov edi, CLEAN_ZONE
190	mov ecx, (HEAP_BASE-OS_BASE-CLEAN_ZONE) / 4	190	mov ecx, (HEAP_BASE-OS_BASE-CLEAN_ZONE) / 4
191	cld	191	cld
192	rep stosd	192	rep stosd
193		193
194	; CLEAR KERNEL UNDEFINED GLOBALS	194	; CLEAR KERNEL UNDEFINED GLOBALS
195	mov edi, endofcode-OS_BASE	195	mov edi, endofcode-OS_BASE
196	mov ecx, 0x90000	196	mov ecx, 0x90000
197	sub ecx, edi	197	sub ecx, edi
198	shr ecx, 2	198	shr ecx, 2
199	rep stosd	199	rep stosd
200		200
201	; SAVE & CLEAR 0-0xffff	201	; SAVE & CLEAR 0-0xffff
202		202
203	mov edi, 0x1000	203	mov edi, 0x1000
204	mov ecx, 0x8000 / 4	204	mov ecx, 0x8000 / 4
205	rep stosd	205	rep stosd
206	mov edi, 0xa000	206	mov edi, 0xa000
207	mov ecx, 0x6000 / 4	207	mov ecx, 0x6000 / 4
208	rep stosd	208	rep stosd
209		209
210	call test_cpu	210	call test_cpu
211	bts [cpu_caps-OS_BASE], CAPS_TSC ;force use rdtsc	211	bts [cpu_caps-OS_BASE], CAPS_TSC ;force use rdtsc
212		212
213	call acpi_locate	213	call acpi_locate
214	call init_BIOS32	214	call init_BIOS32
215	; MEMORY MODEL	215	; MEMORY MODEL
216	call mem_test	216	call mem_test
217	call init_mem	217	call init_mem
218	call init_page_map	218	call init_page_map
219		219
220	; ENABLE PAGING	220	; ENABLE PAGING
221		221
222	mov eax, sys_proc-OS_BASE+PROC.pdt_0	222	mov eax, sys_proc-OS_BASE+PROC.pdt_0
223	mov cr3, eax	223	mov cr3, eax
224		224
225	mov eax, cr0	225	mov eax, cr0
226	or eax, CR0_PG+CR0_WP	226	or eax, CR0_PG+CR0_WP
227	mov cr0, eax	227	mov cr0, eax
228		228
229	lgdt [gdts]	229	lgdt [gdts]
230	jmp pword os_code:high_code	230	jmp pword os_code:high_code
231		231
232	align 4	232	align 4
233	bios32_entry dd ?	233	bios32_entry dd ?
234	tmp_page_tabs dd ?	234	tmp_page_tabs dd ?
235	use16	235	use16
236	ap_init16:	236	ap_init16:
237	cli	237	cli
238	lgdt [cs:gdts_ap-ap_init16]	238	lgdt [cs:gdts_ap-ap_init16]
239	mov eax, [cs:cr3_ap-ap_init16]	239	mov eax, [cs:cr3_ap-ap_init16]
240	mov cr3, eax	240	mov cr3, eax
241	mov eax, [cs:cr4_ap-ap_init16]	241	mov eax, [cs:cr4_ap-ap_init16]
242	mov cr4, eax	242	mov cr4, eax
243	mov eax, CR0_PE+CR0_PG+CR0_WP	243	mov eax, CR0_PE+CR0_PG+CR0_WP
244	mov cr0, eax	244	mov cr0, eax
245	jmp pword os_code:ap_init_high	245	jmp pword os_code:ap_init_high
246	align 16	246	align 16
247	gdts_ap:	247	gdts_ap:
248	dw gdte-gdts-1	248	dw gdte-gdts-1
249	dd gdts	249	dd gdts
250	dw 0	250	dw 0
251	cr3_ap dd ?	251	cr3_ap dd ?
252	cr4_ap dd ?	252	cr4_ap dd ?
253	ap_init16_size = $ - ap_init16	253	ap_init16_size = $ - ap_init16
254	use32	254	use32
255		255
256	__DEBUG__ fix 1	256	__DEBUG__ fix 1
257	__DEBUG_LEVEL__ fix 1	257	__DEBUG_LEVEL__ fix 1
258	include 'init.inc'	258	include 'init.inc'
259		259
260	org OS_BASE+$	260	org OS_BASE+$
261		261
262	include 'fdo.inc'	262	include 'fdo.inc'
263		263
264	align 4	264	align 4
265	high_code:	265	high_code:
266	mov ax, os_stack	266	mov ax, os_stack
267	mov bx, app_data	267	mov bx, app_data
268	mov cx, app_tls	268	mov cx, app_tls
269	mov ss, ax	269	mov ss, ax
270	add esp, OS_BASE	270	add esp, OS_BASE
271		271
272	mov ds, bx	272	mov ds, bx
273	mov es, bx	273	mov es, bx
274	mov fs, cx	274	mov fs, cx
275	mov gs, bx	275	mov gs, bx
276		276
277	xor eax, eax	277	xor eax, eax
278	mov ebx, 0xFFFFF000+PG_SHARED+PG_NOCACHE+PG_UWR	278	mov ebx, 0xFFFFF000+PG_SHARED+PG_NOCACHE+PG_UWR
279	bt [cpu_caps], CAPS_PAT	279	bt [cpu_caps], CAPS_PAT
280	setc al	280	setc al
281	shl eax, 7	281	shl eax, 7
282	or ebx, eax	282	or ebx, eax
283		283
284	mov eax, PG_GLOBAL	284	mov eax, PG_GLOBAL
285	bt [cpu_caps], CAPS_PGE	285	bt [cpu_caps], CAPS_PGE
286	jnc @F	286	jnc @F
287		287
288	or [sys_proc+PROC.pdt_0+(OS_BASE shr 20)], eax	288	or [sys_proc+PROC.pdt_0+(OS_BASE shr 20)], eax
289	or ebx, eax	289	or ebx, eax
290		290
291	mov eax, cr4	291	mov eax, cr4
292	or eax, CR4_PGE	292	or eax, CR4_PGE
293	mov cr4, eax	293	mov cr4, eax
294	@@:	294	@@:
295	mov [pte_valid_mask], ebx	295	mov [pte_valid_mask], ebx
296		296
297	xor eax, eax	297	xor eax, eax
298	mov dword [sys_proc+PROC.pdt_0], eax	298	mov dword [sys_proc+PROC.pdt_0], eax
299	mov dword [sys_proc+PROC.pdt_0+4], eax	299	mov dword [sys_proc+PROC.pdt_0+4], eax
300		300
301	mov eax, cr3	301	mov eax, cr3
302	mov cr3, eax ; flush TLB	302	mov cr3, eax ; flush TLB
303		303
304	mov ecx, pg_data.mutex	304	mov ecx, pg_data.mutex
305	call mutex_init	305	call mutex_init
306		306
307	mov ecx, disk_list_mutex	307	mov ecx, disk_list_mutex
308	call mutex_init	308	call mutex_init
309		309
310	mov ecx, keyboard_list_mutex	310	mov ecx, keyboard_list_mutex
311	call mutex_init	311	call mutex_init
312		312
313	mov ecx, unpack_mutex	313	mov ecx, unpack_mutex
314	call mutex_init	314	call mutex_init
315		315
316	mov ecx, application_table_mutex	316	mov ecx, application_table_mutex
317	call mutex_init	317	call mutex_init
318		318
319	mov ecx, ide_mutex	319	mov ecx, ide_mutex
320	call mutex_init	320	call mutex_init
321	mov ecx, ide_channel1_mutex	321	mov ecx, ide_channel1_mutex
322	call mutex_init	322	call mutex_init
323	mov ecx, ide_channel2_mutex	323	mov ecx, ide_channel2_mutex
324	call mutex_init	324	call mutex_init
325	mov ecx, ide_channel3_mutex	325	mov ecx, ide_channel3_mutex
326	call mutex_init	326	call mutex_init
327	mov ecx, ide_channel4_mutex	327	mov ecx, ide_channel4_mutex
328	call mutex_init	328	call mutex_init
329	mov ecx, ide_channel5_mutex	329	mov ecx, ide_channel5_mutex
330	call mutex_init	330	call mutex_init
331	mov ecx, ide_channel6_mutex	331	mov ecx, ide_channel6_mutex
332	call mutex_init	332	call mutex_init
333	;-----------------------------------------------------------------------------	333	;-----------------------------------------------------------------------------
334	; SAVE REAL MODE VARIABLES	334	; SAVE REAL MODE VARIABLES
335	;-----------------------------------------------------------------------------	335	;-----------------------------------------------------------------------------
336	; --------------- APM ---------------------	336	; --------------- APM ---------------------
337		337
338	; init selectors	338	; init selectors
339	mov ebx, [BOOT.apm_entry] ; offset of APM entry point	339	mov ebx, [BOOT.apm_entry] ; offset of APM entry point
340	movzx eax, word [BOOT.apm_code_32] ; real-mode segment base address of	340	movzx eax, word [BOOT.apm_code_32] ; real-mode segment base address of
341	; protected-mode 32-bit code segment	341	; protected-mode 32-bit code segment
342	movzx ecx, word [BOOT.apm_code_16] ; real-mode segment base address of	342	movzx ecx, word [BOOT.apm_code_16] ; real-mode segment base address of
343	; protected-mode 16-bit code segment	343	; protected-mode 16-bit code segment
344	movzx edx, word [BOOT.apm_data_16] ; real-mode segment base address of	344	movzx edx, word [BOOT.apm_data_16] ; real-mode segment base address of
345	; protected-mode 16-bit data segment	345	; protected-mode 16-bit data segment
346		346
347	shl eax, 4	347	shl eax, 4
348	mov [dword apm_code_32 + 2], ax	348	mov [dword apm_code_32 + 2], ax
349	shr eax, 16	349	shr eax, 16
350	mov [dword apm_code_32 + 4], al	350	mov [dword apm_code_32 + 4], al
351		351
352	shl ecx, 4	352	shl ecx, 4
353	mov [dword apm_code_16 + 2], cx	353	mov [dword apm_code_16 + 2], cx
354	shr ecx, 16	354	shr ecx, 16
355	mov [dword apm_code_16 + 4], cl	355	mov [dword apm_code_16 + 4], cl
356		356
357	shl edx, 4	357	shl edx, 4
358	mov [dword apm_data_16 + 2], dx	358	mov [dword apm_data_16 + 2], dx
359	shr edx, 16	359	shr edx, 16
360	mov [dword apm_data_16 + 4], dl	360	mov [dword apm_data_16 + 4], dl
361		361
362	mov dword[apm_entry], ebx	362	mov dword[apm_entry], ebx
363	mov word [apm_entry + 4], apm_code_32 - gdts	363	mov word [apm_entry + 4], apm_code_32 - gdts
364		364
365	mov eax, dword[BOOT.apm_version] ; version & flags	365	mov eax, dword[BOOT.apm_version] ; version & flags
366	mov [apm_vf], eax	366	mov [apm_vf], eax
367	; -----------------------------------------	367	; -----------------------------------------
368	mov al, [BOOT.dma] ; DMA access	368	mov al, [BOOT.dma] ; DMA access
369	mov [allow_dma_access], al	369	mov [allow_dma_access], al
370		370
371	mov al, [BOOT.debug_print] ; If nonzero, duplicates debug output to the screen	371	mov al, [BOOT.debug_print] ; If nonzero, duplicates debug output to the screen
372	mov [debug_direct_print], al	372	mov [debug_direct_print], al
373		373
374	mov al, [BOOT.launcher_start] ; Start the first app (LAUNCHER) after kernel is loaded?	374	mov al, [BOOT.launcher_start] ; Start the first app (LAUNCHER) after kernel is loaded?
375	mov [launcher_start], al	375	mov [launcher_start], al
376		376
377	mov eax, [BOOT.devicesdat_size]	377	mov eax, [BOOT.devicesdat_size]
378	mov [acpi_dev_size], eax	378	mov [acpi_dev_size], eax
379	mov eax, [BOOT.devicesdat_data]	379	mov eax, [BOOT.devicesdat_data]
380	mov [acpi_dev_data], eax	380	mov [acpi_dev_data], eax
381		381
382	mov esi, BOOT.bios_hd	382	mov esi, BOOT.bios_hd
383	movzx ecx, byte [esi-1]	383	movzx ecx, byte [esi-1]
384	mov [NumBiosDisks], ecx	384	mov [NumBiosDisks], ecx
385	mov edi, BiosDisksData	385	mov edi, BiosDisksData
386	shl ecx, 2	386	shl ecx, 2
387	rep movsd	387	rep movsd
388		388
389	; -------- Fast System Call init ----------	389	; -------- Fast System Call init ----------
390	; Intel SYSENTER/SYSEXIT (AMD CPU support it too)	390	; Intel SYSENTER/SYSEXIT (AMD CPU support it too)
391	bt [cpu_caps], CAPS_SEP	391	bt [cpu_caps], CAPS_SEP
392	jnc .SEnP ; SysEnter not Present	392	jnc .SEnP ; SysEnter not Present
393	xor edx, edx	393	xor edx, edx
394	mov ecx, MSR_SYSENTER_CS	394	mov ecx, MSR_SYSENTER_CS
395	mov eax, os_code	395	mov eax, os_code
396	wrmsr	396	wrmsr
397	mov ecx, MSR_SYSENTER_ESP	397	mov ecx, MSR_SYSENTER_ESP
398	; mov eax, sysenter_stack ; Check it	398	; mov eax, sysenter_stack ; Check it
399	xor eax, eax	399	xor eax, eax
400	wrmsr	400	wrmsr
401	mov ecx, MSR_SYSENTER_EIP	401	mov ecx, MSR_SYSENTER_EIP
402	mov eax, sysenter_entry	402	mov eax, sysenter_entry
403	wrmsr	403	wrmsr
404	.SEnP:	404	.SEnP:
405	; AMD SYSCALL/SYSRET	405	; AMD SYSCALL/SYSRET
406	cmp byte[cpu_vendor], 'A'	406	cmp byte[cpu_vendor], 'A'
407	jne .noSYSCALL	407	jne .noSYSCALL
408	mov eax, 0x80000001	408	mov eax, 0x80000001
409	cpuid	409	cpuid
410	test edx, 0x800 ; bit_11 - SYSCALL/SYSRET support	410	test edx, 0x800 ; bit_11 - SYSCALL/SYSRET support
411	jz .noSYSCALL	411	jz .noSYSCALL
412	mov ecx, MSR_AMD_EFER	412	mov ecx, MSR_AMD_EFER
413	rdmsr	413	rdmsr
414	or eax, 1 ; bit_0 - System Call Extension (SCE)	414	or eax, 1 ; bit_0 - System Call Extension (SCE)
415	wrmsr	415	wrmsr
416		416
417	; !!!! It`s dirty hack, fix it !!!	417	; !!!! It`s dirty hack, fix it !!!
418	; Bits of EDX :	418	; Bits of EDX :
419	; Bit 31–16 During the SYSRET instruction, this field is copied into the CS register	419	; Bit 31–16 During the SYSRET instruction, this field is copied into the CS register
420	; and the contents of this field, plus 8, are copied into the SS register.	420	; and the contents of this field, plus 8, are copied into the SS register.
421	; Bit 15–0 During the SYSCALL instruction, this field is copied into the CS register	421	; Bit 15–0 During the SYSCALL instruction, this field is copied into the CS register
422	; and the contents of this field, plus 8, are copied into the SS register.	422	; and the contents of this field, plus 8, are copied into the SS register.
423		423
424	; mov edx, (os_code + 16) * 65536 + os_code	424	; mov edx, (os_code + 16) * 65536 + os_code
425	mov edx, 0x1B0008	425	mov edx, 0x1B0008
426		426
427	mov eax, syscall_entry	427	mov eax, syscall_entry
428	mov ecx, MSR_AMD_STAR	428	mov ecx, MSR_AMD_STAR
429	wrmsr	429	wrmsr
430	.noSYSCALL:	430	.noSYSCALL:
431	; -----------------------------------------	431	; -----------------------------------------
432	stdcall alloc_page	432	stdcall alloc_page
433	stdcall map_page, tss-0xF80, eax, PG_SWR	433	stdcall map_page, tss-0xF80, eax, PG_SWR
434	stdcall alloc_page	434	stdcall alloc_page
435	stdcall map_page, tss+0x80, eax, PG_SWR	435	stdcall map_page, tss+0x80, eax, PG_SWR
436	stdcall alloc_page	436	stdcall alloc_page
437	stdcall map_page, tss+0x1080, eax, PG_SWR	437	stdcall map_page, tss+0x1080, eax, PG_SWR
438		438
439	; LOAD IDT	439	; LOAD IDT
440		440
441	call build_interrupt_table ;lidt is executed	441	call build_interrupt_table ;lidt is executed
442	;lidt [idtreg]	442	;lidt [idtreg]
443		443
444	call init_kernel_heap	444	call init_kernel_heap
445	call init_fpu	445	call init_fpu
446	mov eax, [xsave_area_size]	446	mov eax, [xsave_area_size]
447	lea eax, [eax2 + RING0_STACK_SIZE2]	447	lea eax, [eax2 + RING0_STACK_SIZE2]
448	stdcall kernel_alloc, eax	448	stdcall kernel_alloc, eax
449	mov [os_stack_seg], eax	449	mov [os_stack_seg], eax
450		450
451	lea esp, [eax+RING0_STACK_SIZE]	451	lea esp, [eax+RING0_STACK_SIZE]
452		452
453	mov [tss._ss0], os_stack	453	mov [tss._ss0], os_stack
454	mov [tss._esp0], esp	454	mov [tss._esp0], esp
455	mov [tss._esp], esp	455	mov [tss._esp], esp
456	mov [tss._cs], os_code	456	mov [tss._cs], os_code
457	mov [tss._ss], os_stack	457	mov [tss._ss], os_stack
458	mov [tss._ds], app_data	458	mov [tss._ds], app_data
459	mov [tss._es], app_data	459	mov [tss._es], app_data
460	mov [tss._fs], app_data	460	mov [tss._fs], app_data
461	mov [tss._gs], app_data	461	mov [tss._gs], app_data
462	mov [tss._io], 128	462	mov [tss._io], 128
463	;Add IO access table - bit array of permitted ports	463	;Add IO access table - bit array of permitted ports
464	mov edi, tss._io_map_0	464	mov edi, tss._io_map_0
465	xor eax, eax	465	xor eax, eax
466	not eax	466	not eax
467	mov ecx, 8192/4	467	mov ecx, 8192/4
468	rep stosd ; access to 4096*8=65536 ports	468	rep stosd ; access to 4096*8=65536 ports
469		469
470	mov ax, tss0	470	mov ax, tss0
471	ltr ax	471	ltr ax
472		472
473	mov eax, sys_proc	473	mov eax, sys_proc
474	list_init eax	474	list_init eax
475	add eax, PROC.thr_list	475	add eax, PROC.thr_list
476	list_init eax	476	list_init eax
477		477
478	call init_video	478	call init_video
479	call init_mtrr	479	call init_mtrr
480	mov [LFBAddress], LFB_BASE	480	mov [LFBAddress], LFB_BASE
481	mov ecx, bios_fb	481	mov ecx, bios_fb
482	call set_framebuffer	482	call set_framebuffer
483	call init_malloc	483	call init_malloc
484		484
485	stdcall alloc_kernel_space, 0x50000 ; FIXME check size	485	stdcall alloc_kernel_space, 0x50000 ; FIXME check size
486	mov [default_io_map], eax	486	mov [default_io_map], eax
487		487
488	add eax, 0x2000	488	add eax, 0x2000
489	mov [ipc_tmp], eax	489	mov [ipc_tmp], eax
490	mov ebx, 0x1000	490	mov ebx, 0x1000
491		491
492	add eax, 0x40000	492	add eax, 0x40000
493	mov [proc_mem_map], eax	493	mov [proc_mem_map], eax
494		494
495	add eax, 0x8000	495	add eax, 0x8000
496	mov [proc_mem_pdir], eax	496	mov [proc_mem_pdir], eax
497		497
498	add eax, ebx	498	add eax, ebx
499	mov [proc_mem_tab], eax	499	mov [proc_mem_tab], eax
500		500

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(root)/kernel/trunk/kernel.asm – Rev 8248 → 8249