WebSVN – Kolibri OS – Diff – /kernel/branches/flat_kernel/kernel.asm


;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; Kolibri OS - based on source code Menuet OS, but not 100% compatible.
;;
;; See file COPYING or GNU.TXT for details with these additional details:
;;     - All code written in 32 bit x86 assembly language
;;     - No external code (eg. bios) at process execution time
;;
;;
;;   Compile with last version FASM
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
include "proc32.inc"
include "kglobals.inc"
include "lang.inc"
 
include "const.inc"
max_processes    equ   255
tss_step         equ   (128+8192) ; tss & i/o - 65535 ports, * 256=557056*4
 
 
os_data        equ  os_data_l-gdts    ; GDTs
os_code        equ  os_code_l-gdts
graph_data     equ  3+graph_data_l-gdts
tss0           equ  tss0_l-gdts
app_code       equ  3+app_code_l-gdts
app_data       equ  3+app_data_l-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
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;                                                                      ;;
;;                  16 BIT ENTRY FROM BOOTSECTOR                        ;;
;;                                                                      ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
use16
                  org   0x0
                  jmp   start_of_code
 
version db    'Kolibri OS  version 0.6.5.0      ',13,10,13,10,0
 
include "boot/preboot.inc"
 
if lang eq en
include "boot/booteng.inc"     ; english system boot messages
else if lang eq ru
include "boot/bootru.inc"      ; russian system boot messages
include "boot/ru.inc"          ; Russian font
else if lang eq et
include "boot/bootet.inc"      ; estonian system boot messages
include "boot/et.inc"          ; Estonian font
else
include "boot/bootge.inc"      ; german system boot messages
end if
 
include "boot/bootcode.inc"    ; 16 bit system boot code
include "bus/pci/pci16.inc"
 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;                                                                      ;;
;;                  SWITCH TO 32 BIT PROTECTED MODE                     ;;
;;                                                                      ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
 
; CR0 Flags - Protected mode and Paging
 
        mov ecx, CR0_PE
 
; Enabling 32 bit protected mode
 
        sidt    [cs:old_ints_h]
 
        cli                             ; disable all irqs
        cld
        mov     al,255                  ; mask all irqs
        out     0xa1,al
        out     0x21,al
   l.5: in      al, 0x64                ; Enable A20
        test    al, 2
        jnz     l.5
        mov     al, 0xD1
        out     0x64, al
   l.6: in      al, 0x64
        test    al, 2
        jnz     l.6
        mov     al, 0xDF
        out     0x60, al
   l.7: in      al, 0x64
        test    al, 2
        jnz     l.7
        mov     al, 0xFF
        out     0x64, al
 
        lgdt    [cs:tmp_gdt]            ; Load GDT
        mov     eax, cr0                ; protected mode
        or      eax, ecx
        and     eax, 10011111b *65536*256 + 0xffffff ; caching enabled
        mov     cr0, eax
        jmp     pword os_code:B32       ; jmp to enable 32 bit mode
 
include "boot/shutdown.inc" ; shutdown or restart
 
align 8
tmp_gdt:
 
        dw     23
        dd     tmp_gdt+0x10000
        dw     0
 
        dw     0xffff
        dw     0x0000
        db     0x00
        dw     11011111b *256 +10011010b
        db     0x00
 
        dw     0xffff
        dw     0x0000
        db     0x00
        dw     11011111b *256 +10010010b
        db     0x00
 
include "data16.inc"
 
use32
org $+0x10000
 
align 4
B32:
           mov   ax,os_data        ; Selector for os
           mov   ds,ax
           mov   es,ax
           mov   fs,ax
           mov   gs,ax
           mov   ss,ax
           mov   esp,0x3ec00       ; Set stack
 
; CLEAR 0x280000 - HEAP_BASE
 
           xor   eax,eax
           mov   edi,0x280000
           mov   ecx,(HEAP_BASE-OS_BASE-0x280000) / 4
           cld
           rep   stosd
 
           mov   edi,0x40000
           mov   ecx,(0x90000-0x40000)/4
           rep   stosd
 
; CLEAR KERNEL UNDEFINED GLOBALS
           mov   edi, endofcode-OS_BASE
           mov   ecx, (uglobals_size/4)+4
           rep   stosd
 
; SAVE & CLEAR 0-0xffff
 
           xor esi, esi
           mov   edi,0x2F0000
           mov   ecx,0x10000 / 4
           rep   movsd
           xor edi, edi
           mov   ecx,0x10000 / 4
           rep   stosd
 
           call test_cpu
           bts [cpu_caps-OS_BASE], CAPS_TSC     ;force use rdtsc
 
; MEMORY MODEL
           call mem_test
           call init_mem
           call init_page_map
 
; ENABLE PAGING
 
           mov eax, sys_pgdir-OS_BASE
           mov cr3, eax
 
           mov eax,cr0
           or eax,CR0_PG
           mov cr0,eax
 
           lgdt [gdts]
           jmp pword os_code:high_code
 
__DEBUG__ fix 1
__DEBUG_LEVEL__ fix 1
include 'init.inc'
 
org OS_BASE+$
 
 
align 4
high_code:
           mov   ax,os_data
           mov   ds,ax
           mov   es,ax
           mov   fs,ax
           mov   gs,ax
           mov   ss,ax
           add esp, OS_BASE
 
           mov dword [sys_pgdir], 0
           mov dword [sys_pgdir+4], 0
           mov dword [sys_pgdir+8], 0
           mov dword [sys_pgdir+12], 0
 
           mov eax, sys_pgdir-OS_BASE
           mov cr3, eax
 
; SAVE REAL MODE VARIABLES
        mov     ax, [BOOT_VAR + 0x9031]
        mov     [IDEContrRegsBaseAddr], ax
; --------------- APM ---------------------
;    mov    eax, [BOOT_VAR + 0x9040]    ; entry point
;    mov    dword[apm_entry], eax
;    mov    word [apm_entry + 4], apm_code_32 - gdts
 
    mov    eax, [BOOT_VAR + 0x9044]    ; version & flags
    mov    [apm_vf], eax
; -----------------------------------------
;        movzx eax,byte [BOOT_VAR+0x9010]  ; mouse port
;        mov   [0xF604],byte 1  ;al
        mov     al, [BOOT_VAR+0x901F]   ; DMA writing
        mov     [allow_dma_write], al
        mov   al,[BOOT_VAR+0x9000]        ; bpp
        mov   [ScreenBPP],al
        movzx eax,word [BOOT_VAR+0x900A]  ; X max
        dec   eax
        mov   [ScreenWidth],eax
        mov   [screen_workarea.right],eax
        movzx eax,word [BOOT_VAR+0x900C]  ; Y max
        dec   eax
        mov   [ScreenHeight],eax
        mov   [screen_workarea.bottom],eax
        movzx eax,word [BOOT_VAR+0x9008]  ; screen mode
        mov   [SCR_MODE],eax
        mov   eax,[BOOT_VAR+0x9014]       ; Vesa 1.2 bnk sw add
        mov   [BANK_SWITCH],eax
        mov   [BytesPerScanLine],word 640*4         ; Bytes PerScanLine
        cmp   [SCR_MODE],word 0x13          ; 320x200
        je    @f
        cmp   [SCR_MODE],word 0x12          ; VGA 640x480
        je    @f
        mov   ax,[BOOT_VAR+0x9001]        ; for other modes
        mov   [BytesPerScanLine],ax
@@:
 
; GRAPHICS ADDRESSES
 
        mov     byte [BOOT_VAR+0x901e],0x0
        mov     eax,[BOOT_VAR+0x9018]
        mov     [LFBAddress],eax
 
        cmp     [SCR_MODE],word 0100000000000000b
        jge     setvesa20
        cmp     [SCR_MODE],word 0x13
        je      v20ga32
        mov     [PUTPIXEL],dword Vesa12_putpixel24  ; Vesa 1.2
        mov     [GETPIXEL],dword Vesa12_getpixel24
        cmp     [ScreenBPP],byte 24
        jz      ga24
        mov     [PUTPIXEL],dword Vesa12_putpixel32
        mov     [GETPIXEL],dword Vesa12_getpixel32
      ga24:
        jmp     v20ga24
      setvesa20:
        mov     [PUTPIXEL],dword Vesa20_putpixel24  ; Vesa 2.0
        mov     [GETPIXEL],dword Vesa20_getpixel24
        cmp     [ScreenBPP],byte 24
        jz      v20ga24
      v20ga32:
        mov     [PUTPIXEL],dword Vesa20_putpixel32
        mov     [GETPIXEL],dword Vesa20_getpixel32
      v20ga24:
        cmp     [SCR_MODE],word 0x12                ; 16 C VGA 640x480
        jne     no_mode_0x12
        mov     [PUTPIXEL],dword VGA_putpixel
        mov     [GETPIXEL],dword Vesa20_getpixel32
      no_mode_0x12:
 
; -------- 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
           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, 0x1B0013
 
           mov eax, syscall_entry
           mov ecx, MSR_AMD_STAR
           wrmsr
.noSYSCALL:
; -----------------------------------------
 
           call init_kernel_heap
           stdcall kernel_alloc, 0x2000
           mov [os_stack], eax
 
           mov [LFBSize], 0x800000
           call init_mtrr
 
           call init_LFB
           call init_fpu
 
           call init_malloc
 
           stdcall alloc_kernel_space, 0x4F000
           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_pdir], eax
 
           add eax, ebx
           mov [tmp_task_ptab], eax
 
           add eax, ebx
           mov [ipc_pdir], eax
 
           add eax, ebx
           mov [ipc_ptab], eax
 
           call init_events
 
           mov eax, srv.fd-SRV_FD_OFFSET
           mov [srv.fd], eax
           mov [srv.bk], eax
 
           mov edi, irq_tab
           xor eax, eax
           mov ecx, 16
           rep stosd
 
;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
 
;!!!!!!!!!!!!!!!!!!!!!!!!!!
include 'detect/disks.inc'
;!!!!!!!!!!!!!!!!!!!!!!!!!!
 
; READ RAMDISK IMAGE FROM HD
 
;!!!!!!!!!!!!!!!!!!!!!!!
include 'boot/rdload.inc'
;!!!!!!!!!!!!!!!!!!!!!!!
;    mov    [dma_hdd],1
; CALCULATE FAT CHAIN FOR RAMDISK
 
        call  calculatefatchain
 
; LOAD VMODE DRIVER
 
;!!!!!!!!!!!!!!!!!!!!!!!
include 'vmodeld.inc'
;!!!!!!!!!!!!!!!!!!!!!!!
 
; LOAD FONTS I and II
 
        mov   [CURRENT_TASK],dword 1
        mov   [TASK_COUNT],dword 1
        mov   [TASK_BASE],dword TASK_DATA
 
        mov   esi,char
        xor   ebx,ebx
        mov   ecx,2560
        mov   edx,FONT_I
        call  fs_RamdiskRead
 
        mov   esi,char2
        xor   ebx,ebx
        mov   ecx,2560;26000
        mov   edx,FONT_II
        call  fs_RamdiskRead
 
        mov   esi,boot_fonts
        call  boot_log
 
; PRINT AMOUNT OF MEMORY
        mov     esi, boot_memdetect
        call    boot_log
 
        movzx   ecx, word [boot_y]
        or      ecx, (10+29*6) shl 16 ; "Determining amount of memory"
        sub     ecx, 10
        mov     edx, 0xFFFFFF
        mov     ebx, [MEM_AMOUNT]
        shr     ebx, 20
        mov     edi, 1
        mov     eax, 0x00040000
        call    display_number_force
 
; REDIRECT ALL IRQ'S TO INT'S 0x20-0x2f
 
        mov   esi,boot_irqs
        call  boot_log
        call  rerouteirqs
 
        mov    esi,boot_tss
        call   boot_log
 
; BUILD SCHEDULER
 
        call   build_scheduler ; sys32.inc
 
; LOAD IDT
        lidt   [idtreg]
 
        mov    esi,boot_devices
        call   boot_log
        call   detect_devices
 
; TIMER SET TO 1/100 S
 
        mov   esi,boot_timer
        call  boot_log
        mov   al,0x34              ; set to 100Hz
        out   0x43,al
        mov   al,0x9b              ; lsb    1193180 / 1193
        out   0x40,al
        mov   al,0x2e              ; msb
        out   0x40,al
 
; SET MOUSE
 
        mov   esi,boot_setmouse
        call  boot_log
        call  setmouse
 
        mov  [pci_access_enabled],1
 
; SET PRELIMINARY WINDOW STACK AND POSITIONS
 
        mov   esi,boot_windefs
        call  boot_log
        call  setwindowdefaults
 
; SET BACKGROUND DEFAULTS
 
        mov   esi,boot_bgr
        call  boot_log
        call  calculatebackground
 
; RESERVE SYSTEM IRQ'S JA PORT'S
 
        mov   esi,boot_resirqports
        call  boot_log
        call  reserve_irqs_ports
 
; SET PORTS FOR IRQ HANDLERS
 
        mov  esi,boot_setrports
        call boot_log
        call setirqreadports
 
; SET UP OS TASK
 
        mov  esi,boot_setostask
        call boot_log
 
        mov eax, fpu_data
        mov  dword [SLOT_BASE+APPDATA.fpu_state], eax
        mov  dword [SLOT_BASE+APPDATA.fpu_handler], 0
        mov  dword [SLOT_BASE+APPDATA.sse_handler], 0
 
        ; name for OS/IDLE process
 
        mov dword [SLOT_BASE+256+APPDATA.app_name],   dword 'OS/I'
        mov dword [SLOT_BASE+256+APPDATA.app_name+4], dword 'DLE '
        mov edi, [os_stack]
        mov dword [SLOT_BASE+256+APPDATA.pl0_stack], edi
        add edi, 0x2000-512
        mov dword [SLOT_BASE+256+APPDATA.fpu_state], edi
 
        mov esi, fpu_data
        mov ecx, 512/4
        cld
        rep movsd
 
        mov dword [SLOT_BASE+256+APPDATA.fpu_handler], 0
        mov dword [SLOT_BASE+256+APPDATA.sse_handler], 0
        mov dword [SLOT_BASE+256+APPDATA.cursor], ebx
 
        mov ebx, SLOT_BASE+256+APP_OBJ_OFFSET
        mov  dword [SLOT_BASE+256+APPDATA.fd_obj], ebx
        mov  dword [SLOT_BASE+256+APPDATA.bk_obj], ebx
 
        ; task list
        mov   [CURRENT_TASK],dword 1
        mov   [TASK_COUNT],dword 1
        mov  [TASK_DATA+TASKDATA.wnd_number], 1 ; on screen number
        mov  [TASK_DATA+TASKDATA.pid], 1        ; process id number
        mov  [TASK_DATA+TASKDATA.mem_start], 0  ; process base address
 
        mov  edi,tss_data+tss_step
        mov ecx, (tss_step)/4
        xor eax, eax
        cld
        rep stosd
 
        mov  edi,tss_data+tss_step
        mov  [edi+TSS._ss0], os_data
        mov  eax,cr3
        mov  [edi+TSS._cr3],eax
        mov  [edi+TSS._eip],osloop
        mov  [edi+TSS._eflags],dword 0x11202 ; sti and resume
        mov eax, [os_stack]
        add eax, 0x2000-512
        mov  [edi+TSS._esp], eax
        mov  [edi+TSS._cs],os_code
        mov  [edi+TSS._ss],os_data
        mov  [edi+TSS._ds],os_data
        mov  [edi+TSS._es],os_data
        mov  [edi+TSS._fs],os_data
        mov  [edi+TSS._gs],os_data
 
        mov  ax,tss0
        ltr  ax
 
        call init_cursors
        mov eax, [def_cursor]
        mov [SLOT_BASE+APPDATA.cursor],eax
        mov [SLOT_BASE+APPDATA.cursor+256],eax
 
  ; READ TSC / SECOND
 
        mov   esi,boot_tsc
        call  boot_log
        call  _rdtsc
        mov   ecx,eax
        mov   esi,250               ; wait 1/4 a second
        call  delay_ms
        call  _rdtsc
        sub   eax,ecx
        shl   eax,2
        mov   [CPU_FREQ],eax          ; save tsc / sec
        mov ebx, 1000000
        div ebx
        mov [stall_mcs], eax
 
; 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
 
        mov     esi,_skin_file_default
        mov     edi,_skin_file
        movsd
        movsd
        movsd
        call    load_skin
 
; LOAD FIRST APPLICATION
        cli
        cmp   byte [BOOT_VAR+0x9030],1
        jne   no_load_vrr_m
 
        mov ebp, vrr_m
        xor ebx, ebx
        xor edx, edx
        call fs_execute
        cmp   eax,2                  ; if vrr_m app found (PID=2)
        je    first_app_found
 
no_load_vrr_m:
        mov ebp, firstapp
        xor ebx, ebx
        xor edx, edx
        call fs_execute
        cmp   eax,2                  ; continue if a process has been loaded
        je    first_app_found
        mov   eax, 0xDEADBEEF        ; otherwise halt
        hlt
first_app_found:
        cli
 
        ;mov   [TASK_COUNT],dword 2
        mov   [CURRENT_TASK],dword 1       ; set OS task fisrt
 
; SET KEYBOARD PARAMETERS
        mov   al, 0xf6         ; reset keyboard, scan enabled
        call  kb_write
 
        ; wait until 8042 is ready
        xor ecx,ecx
      @@:
        in     al,64h
        and    al,00000010b
        loopnz @b
 
       ; mov   al, 0xED       ; svetodiody - only for testing!
       ; call  kb_write
       ; call  kb_read
       ; mov   al, 111b
       ; call  kb_write
       ; call  kb_read
 
        mov   al, 0xF3       ; set repeat rate & delay
        call  kb_write
;        call  kb_read
        mov   al, 0 ; 30 250 ;00100010b ; 24 500  ;00100100b  ; 20 500
        call  kb_write
;        call  kb_read
     ;// mike.dld [
        call  set_lights
     ;// mike.dld ]
 
; START MULTITASKING
 
        mov   esi,boot_tasking
        call  boot_log
 
 ;      mov   [ENABLE_TASKSWITCH],byte 1        ; multitasking enabled
 
; UNMASK ALL IRQ'S
 
        mov   esi,boot_allirqs
        call  boot_log
 
        cli                          ;guarantee forbidance of interrupts.
        mov   al,0                   ; unmask all irq's
        out   0xA1,al
        out   0x21,al
 
        mov   ecx,32
 
     ready_for_irqs:
 
        mov   al,0x20                ; ready for irqs
        out   0x20,al
        out   0xa0,al
 
        loop  ready_for_irqs         ; flush the queue
 
        stdcall attach_int_handler, dword 1, irq1
 
;        mov    [dma_hdd],1
        cmp     [IDEContrRegsBaseAddr], 0
        setnz   [dma_hdd]
 
        sti
        jmp   $                      ; wait here for timer to take control
 
        ; Fly :)
 
 
include 'unpacker.inc'
include 'fdo.inc'
 
align 4
boot_log:
         pushad
 
         mov   eax,10*65536
         mov   ax,word [boot_y]
         add   [boot_y],dword 10
         mov   ebx,0x80ffffff   ; ASCIIZ string with white color
         mov   ecx,esi
         mov   edi,1
         call  dtext
 
         mov   [novesachecksum],1000
         call  checkVga_N13
 
         cmp   [preboot_blogesc+OS_BASE+0x10000],byte 1
         je    .bll2
 
         cmp   esi,boot_tasking
         jne   .bll2
         ; begin ealex 04.08.05
;         in    al,0x61
;         and   al,01111111b
;         out   0x61,al
         ; end ealex 04.08.05
.bll1:   in    al,0x60    ; wait for ESC key press
         cmp   al,129
         jne   .bll1
 
.bll2:   popad
 
         ret
 
 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;                                                                    ;
;                    MAIN OS LOOP START                              ;
;                                                                    ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
align 32
osloop:
        call   [draw_pointer]
        call   checkbuttons
        call   checkwindows
;       call   check_window_move_request
        call   checkmisc
        call   checkVga_N13
        call   stack_handler
        call   checkidle
        call   check_fdd_motor_status
        jmp    osloop
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;                                                                    ;
;                      MAIN OS LOOP END                              ;
;                                                                    ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
checkidle:
        pushad
 
        cmp  [check_idle_semaphore],0
        jne  no_idle_state
 
        call change_task
        mov  eax,[idlemem]
        mov  ebx,[timer_ticks] ;[0xfdf0]
        cmp  eax,ebx
        jnz  idle_exit
        call _rdtsc
        mov  ecx,eax
      idle_loop:
        hlt
        cmp  [check_idle_semaphore],0
        jne  idle_loop_exit
        mov  eax,[timer_ticks] ;[0xfdf0]
        cmp  ebx,eax
        jz   idle_loop
      idle_loop_exit:
        mov  [idlemem],eax
        call _rdtsc
        sub  eax,ecx
        mov  ebx,[idleuse]
        add  ebx,eax
        mov  [idleuse],ebx
 
        popad
        ret
 
      idle_exit:
 
        mov  ebx,[timer_ticks] ;[0xfdf0]
        mov  [idlemem],ebx
        call change_task
 
        popad
        ret
 
      no_idle_state:
 
        dec  [check_idle_semaphore]
 
        mov  ebx,[timer_ticks] ;[0xfdf0]
        mov  [idlemem],ebx
        call change_task
 
        popad
        ret
 
uglobal
  idlemem               dd   0x0
  idleuse               dd   0x0
  idleusesec            dd   0x0
  check_idle_semaphore  dd   0x0
endg
 
 
 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;                                                                      ;
;                   INCLUDED SYSTEM FILES                              ;
;                                                                      ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
 
include "kernel32.inc"
 
 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;                                                                      ;
;                       KERNEL FUNCTIONS                               ;
;                                                                      ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
reserve_irqs_ports:
 
        pushad
 
        mov  [irq_owner+4*0], 1    ; timer
        mov  [irq_owner+4*1], 1    ; keyboard
        mov  [irq_owner+4*5], 1    ; sound blaster
        mov  [irq_owner+4*6], 1    ; floppy diskette
        mov  [irq_owner+4*13], 1   ; math co-pros
        mov  [irq_owner+4*14], 1   ; ide I
        mov  [irq_owner+4*15], 1   ; ide II
 
;        movzx eax,byte [0xf604]        ; mouse irq
;        dec   eax
;        add   eax,mouseirqtable
;        movzx eax,byte [eax]
;        shl   eax,2
;        mov   [irq_owner+eax],byte 1
 
 
                                       ; RESERVE PORTS
        mov   edi,1                    ; 0x00-0x2d
        mov   [RESERVED_PORTS],edi
        shl   edi,4
        mov   [RESERVED_PORTS+edi+0],dword 1
        mov   [RESERVED_PORTS+edi+4],dword 0x0
        mov   [RESERVED_PORTS+edi+8],dword 0x2d
 
        inc   dword [RESERVED_PORTS]          ; 0x30-0x4d
        mov   edi,[RESERVED_PORTS]
        shl   edi,4
        mov   [RESERVED_PORTS+edi+0],dword 1
        mov   [RESERVED_PORTS+edi+4],dword 0x30
        mov   [RESERVED_PORTS+edi+8],dword 0x4d
 
        inc   dword [RESERVED_PORTS]          ; 0x50-0xdf
        mov   edi,[RESERVED_PORTS]
        shl   edi,4
        mov   [RESERVED_PORTS+edi+0],dword 1
        mov   [RESERVED_PORTS+edi+4],dword 0x50
        mov   [RESERVED_PORTS+edi+8],dword 0xdf
 
        inc   dword [RESERVED_PORTS]          ; 0xe5-0xff
        mov   edi,[RESERVED_PORTS]
        shl   edi,4
        mov   [RESERVED_PORTS+edi+0],dword 1
        mov   [RESERVED_PORTS+edi+4],dword 0xe5
        mov   [RESERVED_PORTS+edi+8],dword 0xff
 
 
;        cmp   [0xf604],byte 2          ; com1 mouse -> 0x3f0-0x3ff
;        jne   ripl1
;        inc   dword [0x2d0000]
;        mov   edi,[0x2d0000]
;        shl   edi,4
;        mov   [0x2d0000+edi+0],dword 1
;        mov   [0x2d0000+edi+4],dword 0x3f0
;        mov   [0x2d0000+edi+8],dword 0x3ff
;      ripl1:
;        cmp   [0xf604],byte 3          ; com2 mouse -> 0x2f0-0x2ff
;        jne   ripl2
;        inc   dword [0x2d0000]
;        mov   edi,[0x2d0000]
;        shl   edi,4
;        mov   [0x2d0000+edi+0],dword 1
;        mov   [0x2d0000+edi+4],dword 0x2f0
;        mov   [0x2d0000+edi+8],dword 0x2ff
;      ripl2:
 
        popad
        ret
 
iglobal
mouseirqtable   db  12    ; ps2
                db  4     ; com1
                db  3     ; com2
endg
 
setirqreadports:
 
        mov   [irq12read+0],dword 0x60 + 0x01000000  ; read port 0x60 , byte
        mov   [irq12read+4],dword 0                  ; end of port list
        mov   [irq04read+0],dword 0x3f8 + 0x01000000 ; read port 0x3f8 , byte
        mov   [irq04read+4],dword 0                  ; end of port list
        mov   [irq03read+0],dword 0x2f8 + 0x01000000 ; read port 0x2f8 , byte
        mov   [irq03read+4],dword 0                  ; end of port list
 
        ret
 
iglobal
  process_number dd 0x1
endg
 
set_variables:
 
        mov   ecx,0x100                       ; flush port 0x60
.fl60:  in    al,0x60
        loop  .fl60
        mov   [MOUSE_BUFF_COUNT],byte 0                 ; mouse buffer
        mov   [KEY_COUNT],byte 0                 ; keyboard buffer
        mov   [BTN_COUNT],byte 0                 ; button buffer
;        mov   [MOUSE_X],dword 100*65536+100    ; mouse x/y
 
        push  eax
        mov   ax,[BOOT_VAR+0x900c]
        shr   ax,1
        shl   eax,16
        mov   ax,[BOOT_VAR+0x900A]
        shr   ax,1
        mov   [MOUSE_X],eax
        pop   eax
 
        mov   byte [SB16_Status],0            ; Minazzi Paolo
        mov   [display_data-12],dword 1       ; tiled background
        mov   [BTN_ADDR],dword BUTTON_INFO    ; address of button list
 
     ;!! IP 04.02.2005:
        mov   [next_usage_update], 100
        mov   byte [DONT_SWITCH], 0 ; change task if possible
 
        ret
 
;* mouse centered - start code- Mario79
mouse_centered:
        push  eax
        mov   eax,[ScreenWidth]
        shr   eax,1
        mov   [MOUSE_X],ax
        mov   eax,[ScreenHeight]
        shr   eax,1
        mov   [MOUSE_Y],ax
        pop   eax
        ret
;* mouse centered - end code- Mario79
 
align 4
 
sys_outport:
 
    mov   edi,ebx          ; separate flag for read / write
    and   ebx,65535
 
    mov   ecx,[RESERVED_PORTS]
    test  ecx,ecx
    jne   sopl8
    mov   [esp+36],dword 1
    ret
 
  sopl8:
    mov   edx,[TASK_BASE]
    mov   edx,[edx+0x4]
    and   ebx,65535
    cld
  sopl1:
 
    mov   esi,ecx
    shl   esi,4
    add   esi,RESERVED_PORTS
    cmp   edx,[esi+0]
    jne   sopl2
    cmp   ebx,[esi+4]
    jb    sopl2
    cmp   ebx,[esi+8]
    jg    sopl2
    jmp   sopl3
 
  sopl2:
 
    dec   ecx
    jnz   sopl1
    mov   [esp+36],dword 1
    ret
 
  sopl3:
 
    test  edi,0x80000000 ; read ?
    jnz   sopl4
 
    mov   dx,bx          ; write
    out   dx,al
    mov   [esp+36],dword 0
    ret
 
  sopl4:
 
    mov   dx,bx          ; read
    in    al,dx
    and   eax,0xff
    mov   [esp+36],dword 0
    mov   [esp+24],eax
    ret
 
 
 
align 4
sys_sb16:
 
     cmp  word [sb16],word 0
     jnz  sb16l1
     mov  [esp+36],dword 1
     ret
   sb16l1:
     mov  [esp+36],dword 0
     cmp  eax,1    ; set volume - main
     jnz  sb16l2
     mov  dx,word [sb16]
     add  dx,4
     mov  al,0x22
     out  dx,al
     mov  esi,1
     call delay_ms
     mov  eax,ebx
     inc  edx
     out  dx,al
     ret
   sb16l2:
 
     cmp  eax,2    ; set volume - cd
     jnz  sb16l3
     mov  dx,word [sb16]
     add  dx,4
     mov  al,0x28
     out  dx,al
     mov  esi,1
     call delay_ms
     mov  eax,ebx
     add  edx,1
     out  dx,al
     ret
   sb16l3:
      mov  [esp+36],dword 2
      ret
 
 
align 4
 
sys_sb16II:
 
     cmp  word [sb16],word 0
     jnz  IIsb16l1
     mov  [esp+36],dword 1
     ret
   IIsb16l1:
 
     cmp  eax,1    ; set volume - main
     jnz  IIsb16l2
     ; L
     mov  dx,word [sb16]
     add  dx,4
     mov  al,0x30
     out  dx,al
     mov  eax,ebx
     inc  edx
     out  dx,al
     ; R
     mov  dx,word [sb16]
     add  dx,4
     mov  al,0x31
     out  dx,al
     mov  eax,ebx
     inc  edx
     out  dx,al
     mov  [esp+36],dword 0
     ret
   IIsb16l2:
 
     cmp  eax,2    ; set volume - cd
     jnz  IIsb16l3
     ; L
     mov  dx,word [sb16]
     add  dx,4
     mov  al,0x36
     out  dx,al
     mov  eax,ebx
     inc  edx
     out  dx,al
     ; R
     mov  dx,word [sb16]
     add  dx,4
     mov  al,0x37
     out  dx,al
     mov  eax,ebx
     inc  edx
     out  dx,al
     mov  [esp+36],dword 0
     ret
   IIsb16l3:
 
     mov  [esp+36],dword 2
     ret
 
 
display_number:
 
; 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:
 
     cmp   eax,0xffff            ; length > 0 ?
     jge   cont_displ
     ret
   cont_displ:
 
     cmp   eax,61*0x10000        ; length <= 60 ?
     jb    cont_displ2
     ret
   cont_displ2:
 
     pushad
 
     cmp   al,1                  ; ecx is a pointer ?
     jne   displnl1
     mov   ebx,[ebx+std_application_base_address]
   displnl1:
     sub   esp,64
 
     cmp   ah,0                  ; DECIMAL
     jne   no_display_desnum
     shr   eax,16
     and   eax,0x3f
     push  eax
     mov   edi,esp
     add   edi,4+64-1
     mov   ecx,eax
     mov   eax,ebx
     mov   ebx,10
   d_desnum:
     xor   edx,edx
     div   ebx
     add   dl,48
     mov   [edi],dl
     dec   edi
     loop  d_desnum
     pop   eax
     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,0x3f
     push  eax
     mov   edi,esp
     add   edi,4+64-1
     mov   ecx,eax
     mov   eax,ebx
     mov   ebx,16
   d_hexnum:
     xor   edx,edx
     div   ebx
     add   edx,hexletters
     mov   dl,[edx]
     mov   [edi],dl
     dec   edi
     loop  d_hexnum
     pop   eax
     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,0x3f
     push  eax
     mov   edi,esp
     add   edi,4+64-1
     mov   ecx,eax
     mov   eax,ebx
     mov   ebx,2
   d_binnum:
     xor   edx,edx
     div   ebx
     add   dl,48
     mov   [edi],dl
     dec   edi
     loop  d_binnum
     pop   eax
     call  draw_num_text
     add   esp,64
     popad
     ret
   no_display_binnum:
 
     add   esp,64
     popad
     ret
 
 
draw_num_text:
 
     ; dtext
     ;
     ; eax x & y
     ; ebx color
     ; ecx start of text
     ; edx length
     ; edi 1 force
 
;        mov     edi,[CURRENT_TASK]
;        shl     edi,8
;        add     ax,word[edi+SLOT_BASE+APPDATA.wnd_clientbox.top]
;        rol     eax,16
;        add     ax,word[edi+SLOT_BASE+APPDATA.wnd_clientbox.left]
;        rol     eax,16
 
     mov   edx,eax
     mov   ecx,64+4
     sub   ecx,eax
     add   ecx,esp
     mov   eax,[esp+64+32-8+4]
     push  edx                       ; add window start x & y
     mov   edx,[TASK_BASE]
 
     mov   edi,[CURRENT_TASK]
     shl   edi,8
 
     mov   ebx,[edx-twdw+WDATA.box.left]
     add   ebx,[edi+SLOT_BASE+APPDATA.wnd_clientbox.left]
     shl   ebx,16
     add   ebx,[edx-twdw+WDATA.box.top]
     add   ebx,[edi+SLOT_BASE+APPDATA.wnd_clientbox.top]
     add   eax,ebx
     pop   edx
     mov   ebx,[esp+64+32-12+4]
        and     ebx, not 0x80000000     ; force counted string
        mov     esi, [esp+64+4+4]
        mov     edi, [esp+64+4]
     jmp   dtext
 
read_string:
 
    ; eax  read_area
    ; ebx  color of letter
    ; ecx  color of background
    ; edx  number of letters to read
    ; esi  [x start]*65536 + [y_start]
 
    ret
 
 
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=cd base    1, pri.master 2, pri slave 3 sec master, 4 sec slave
; 4=sb16 base , base io address
; 5=system language, 1eng 2fi 3ger 4rus
; 7=hd base    1, pri.master 2, pri slave 3 sec master, 4 sec slave
; 8=fat32 partition in hd
; 9
; 10 = sound dma channel
; 11 = enable lba read
; 12 = enable pci access
 
 
     mov  [esp+36],dword 0
     cmp  eax,1                      ; MIDI
     jnz  nsyse1
     cmp  ebx,0x100
     jb   nsyse1
     mov  edx,65535
     cmp  edx,ebx
     jb   nsyse1
     mov  [midi_base],bx
     mov  word [mididp],bx
     inc  bx
     mov  word [midisp],bx
     ret
 
iglobal
midi_base dw 0
endg
 
   nsyse1:
 
     cmp  eax,2                      ; KEYBOARD
     jnz  nsyse2
     cmp  ebx,1
     jnz  kbnobase
     mov  edi,[TASK_BASE]
     add  ecx,[edi+TASKDATA.mem_start]
     mov  eax,ecx
     mov  ebx,keymap
     mov  ecx,128
     call memmove
     ret
   kbnobase:
     cmp  ebx,2
     jnz  kbnoshift
     mov  edi,[TASK_BASE]
     add  ecx,[edi+TASKDATA.mem_start]
     mov  eax,ecx
     mov  ebx,keymap_shift
     mov  ecx,128
     call memmove
     ret
   kbnoshift:
     cmp  ebx,3
     jne  kbnoalt
     mov  edi,[TASK_BASE]
     add  ecx,[edi+TASKDATA.mem_start]
     mov  eax,ecx
     mov  ebx,keymap_alt
     mov  ecx,128
     call memmove
     ret
   kbnoalt:
     cmp  ebx,9
     jnz  kbnocountry
     mov  word [keyboard],cx
     ret
   kbnocountry:
     mov  [esp+36],dword 1
     ret
   nsyse2:
     cmp  eax,3                      ; CD
     jnz  nsyse3
     test ebx,ebx
     jz   nosesl
     cmp  ebx, 4
     ja   nosesl
     mov  [cd_base],bl
     cmp  ebx,1
     jnz  noprma
     mov  [cdbase],0x1f0
     mov  [cdid],0xa0
   noprma:
     cmp  ebx,2
     jnz  noprsl
     mov  [cdbase],0x1f0
     mov  [cdid],0xb0
   noprsl:
     cmp  ebx,3
     jnz  nosema
     mov  [cdbase],0x170
     mov  [cdid],0xa0
   nosema:
     cmp  ebx,4
     jnz  nosesl
     mov  [cdbase],0x170
     mov  [cdid],0xb0
   nosesl:
     ret
 
cd_base db 0
 
   nsyse3:
 
     cmp  eax,4                      ; SB
     jnz  nsyse4
     cmp  ebx,0x100
     jb   nsyse4
     mov  edx,65535
     cmp  edx,ebx
     jb   nsyse4
     mov  word [sb16],bx
     ret
   nsyse4:
 
     cmp  eax,5                      ; SYSTEM LANGUAGE
     jnz  nsyse5
     mov  [syslang],ebx
     ret
   nsyse5:
 
     cmp  eax,7                      ; HD BASE
     jne  nsyse7
     test ebx,ebx
     jz   nosethd
     cmp  ebx,4
     ja   nosethd
     mov  [hd_base],bl
     cmp  ebx,1
     jnz  noprmahd
     mov  [hdbase],0x1f0
     mov  [hdid],0x0
     mov  [hdpos],1
;     call set_FAT32_variables
   noprmahd:
     cmp  ebx,2
     jnz  noprslhd
     mov  [hdbase],0x1f0
     mov  [hdid],0x10
     mov  [hdpos],2
;     call set_FAT32_variables
   noprslhd:
     cmp  ebx,3
     jnz  nosemahd
     mov  [hdbase],0x170
     mov  [hdid],0x0
     mov  [hdpos],3
;     call set_FAT32_variables
   nosemahd:
     cmp  ebx,4
     jnz  noseslhd
     mov  [hdbase],0x170
     mov  [hdid],0x10
     mov  [hdpos],4
;     call set_FAT32_variables
   noseslhd:
    call  reserve_hd1
    call  reserve_hd_channel
    call  free_hd_channel
    mov   [hd1_status],0        ; free
   nosethd:
     ret
 
iglobal
hd_base db 0
endg
 
   nsyse7:
 
     cmp  eax,8                      ; HD PARTITION
     jne  nsyse8
     mov  [fat32part],ebx
;     call set_FAT32_variables
    call  reserve_hd1
    call  reserve_hd_channel
    call  free_hd_channel
     pusha
     call  choice_necessity_partition_1
     popa
    mov   [hd1_status],0        ; free
     ret
   nsyse8:
 
     cmp  eax,10                     ; SOUND DMA CHANNEL
     jne  no_set_sound_dma
     cmp  ebx,3
     ja   sys_setup_err
     mov  [sound_dma],ebx
     ret
   no_set_sound_dma:
 
     cmp  eax,11                     ; ENABLE LBA READ
     jne  no_set_lba_read
     and  ebx,1
     mov  [lba_read_enabled],ebx
     ret
   no_set_lba_read:
 
     cmp  eax,12                     ; ENABLE PCI ACCESS
     jne  no_set_pci_access
     and  ebx,1
     mov  [pci_access_enabled],ebx
     ret
   no_set_pci_access:
 
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
include 'vmodeint.inc'
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
sys_setup_err:
     mov  [esp+36],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=cd base    1, pri.master 2, pri slave 3 sec master, 4 sec slave
; 4=sb16 base , base io address
; 5=system language, 1eng 2fi 3ger 4rus
; 7=hd base    1, pri.master 2, pri slave 3 sec master, 4 sec slave
; 8=fat32 partition in hd
; 9=get hs timer tic
 
     cmp  eax,1
     jne  ngsyse1
     movzx eax,[midi_base]
     mov  [esp+36],eax
     ret
   ngsyse1:
 
     cmp  eax,2
     jne  ngsyse2
     cmp  ebx,1
     jnz  kbnobaseret
     mov  edi,[TASK_BASE]
     add  ecx,[edi+TASKDATA.mem_start]
     mov  ebx,ecx
     mov  eax,keymap
     mov  ecx,128
     call memmove
     ret
   kbnobaseret:
     cmp  ebx,2
     jnz  kbnoshiftret
     mov  edi,[TASK_BASE]
     add  ecx,[edi+TASKDATA.mem_start]
     mov  ebx,ecx
     mov  eax,keymap_shift
     mov  ecx,128
     call memmove
     ret
   kbnoshiftret:
     cmp  ebx,3
     jne  kbnoaltret
     mov  edi,[TASK_BASE]
     add  ecx,[edi+TASKDATA.mem_start]
     mov  ebx,ecx
     mov  eax,keymap_alt
     mov  ecx,128
     call memmove
     ret
   kbnoaltret:
     cmp  ebx,9
     jnz  ngsyse2
     movzx eax,word [keyboard]
     mov  [esp+36],eax
     ret
   ngsyse2:
 
     cmp  eax,3
     jnz  ngsyse3
     movzx eax,[cd_base]
     mov  [esp+36],eax
     ret
   ngsyse3:
 
     cmp  eax,4
     jne  ngsyse4
     mov  eax,[sb16]
     mov  [esp+36],eax
     ret
   ngsyse4:
 
     cmp  eax,5
     jnz  ngsyse5
     mov  eax,[syslang]
     mov  [esp+36],eax
     ret
   ngsyse5:
     cmp  eax,7
     jnz  ngsyse7
     movzx eax,[hd_base]
     mov  [esp+36],eax
     ret
   ngsyse7:
     cmp  eax,8
     jnz  ngsyse8
     mov eax,[fat32part]
     mov  [esp+36],eax
     ret
   ngsyse8:
     cmp  eax,9
     jne  ngsyse9
     mov  eax,[timer_ticks] ;[0xfdf0]
     mov  [esp+36],eax
     ret
   ngsyse9:
     cmp  eax,10
     jnz  ngsyse10
     mov eax,[sound_dma]
     mov  [esp+36],eax
     ret
   ngsyse10:
     cmp  eax,11
     jnz  ngsyse11
     mov eax,[lba_read_enabled]
     mov  [esp+36],eax
     ret
   ngsyse11:
     cmp  eax,12
     jnz  ngsyse12
     mov eax,[pci_access_enabled]
     mov  [esp+36],eax
     ret
   ngsyse12:
     mov  [esp+36],dword 1
     ret
 
iglobal
align 4
mousefn dd msscreen, mswin, msbutton, msset
        dd app_load_cursor
        dd app_set_cursor
        dd app_delete_cursor
endg
 
readmousepos:
 
; eax=0 screen relative
; eax=1 window relative
; eax=2 buttons pressed
; eax=3 set mouse pos   ; reserved
; eax=4 load cursor
; eax=5 set cursor
; eax=6 delete cursor   ; reserved
 
           cmp eax, 6
           ja msset
           jmp [mousefn+eax*4]
msscreen:
           mov  eax,[MOUSE_X]
           shl  eax,16
           mov  ax,[MOUSE_Y]
           mov  [esp+36],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],eax
           ret
msbutton:
           movzx eax,byte [BTN_DOWN]
           mov  [esp+36],eax
           ret
msset:
           ret
 
app_load_cursor:
           add ebx, new_app_base
           cmp ebx, new_app_base
           jb msset
           stdcall load_cursor, ebx, ecx
           mov [esp+36], eax
           ret
 
app_set_cursor:
           stdcall set_cursor, ebx
           mov [esp+36], eax
           ret
 
app_delete_cursor:
           stdcall delete_cursor, ebx
           mov [esp+36], eax
           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
 
 
setuart:
 
 su1:
   call is_output
   cmp  al,0
   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
   cmp  al,0
   jnz  su2
   call get_mpu_in
   cmp  al,0xfe
   jnz  su2
 su3:
   call is_output
   cmp  al,0
   jnz  su3
   mov  dx,word [midisp]
   mov  al,0x3f
   out  dx,al
 
   ret
 
 
align 4
 
sys_midi:
 
     cmp  [mididp],0
     jnz  sm0
     mov  [esp+36],dword 1
     ret
   sm0:
 
     cmp  eax,1
     mov  [esp+36],dword 0
     jnz  smn1
     call setuart
     ret
   smn1:
 
     cmp  eax,2
     jnz  smn2
   sm10:
     call get_mpu_in
     call is_output
     test al,al
     jnz  sm10
     mov  al,bl
     call put_mpu_out
     ret
   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:
 
     mov   eax,[TASK_BASE]
     mov   [eax+TASKDATA.state], 3  ; terminate this program
 
    waitterm:            ; wait here for termination
     mov   eax,5
     call  delay_hs
     jmp   waitterm
 
iglobal
align 4
sys_system_table:
        dd      sysfn_shutdown          ; 1 = system shutdown
        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_param    ; 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
sysfn_num = ($ - sys_system_table)/4
endg
 
sys_system:
        dec     eax
        cmp     eax, sysfn_num
        jae     @f
        jmp     dword [sys_system_table + eax*4]
@@:
        ret
 
sysfn_shutdown:         ; 18.1 = BOOT
     mov  [BOOT_VAR+0x9030],byte 0
  for_shutdown_parameter:
 
     mov  eax,[TASK_COUNT]
     add  eax,2
     mov  [shutdown_processes],eax
     mov  [SYS_SHUTDOWN],al
     and  dword [esp+36], 0
     ret
  uglobal
   shutdown_processes: dd 0x0
  endg
 
sysfn_terminate:        ; 18.2 = TERMINATE
     cmp  ebx,2
     jb   noprocessterminate
     mov  edx,[TASK_COUNT]
     cmp  ebx,edx
     ja   noprocessterminate
     mov  eax,[TASK_COUNT]
     shl  ebx,5
     mov  edx,[ebx+CURRENT_TASK+TASKDATA.pid]
     add  ebx,CURRENT_TASK+TASKDATA.state
     cmp  byte [ebx], 9
     jz   noprocessterminate
 
     ;call MEM_Heap_Lock      ;guarantee that process isn't working with heap
     mov  [ebx],byte 3       ; clear possible i40's
     ;call MEM_Heap_UnLock
 
     cmp  edx,[application_table_status]    ; clear app table stat
     jne  noatsc
     mov  [application_table_status],0
   noatsc:
   noprocessterminate:
     ret
 
sysfn_terminate2:
;lock application_table_status mutex
.table_status:
    cli
    cmp    [application_table_status],0
    je     .stf
    sti
    call   change_task
    jmp    .table_status
.stf:
    call   set_application_table_status
    mov    eax,ebx
    call   pid_to_slot
    test   eax,eax
    jz     .not_found
    mov    ebx,eax
    cli
    call   sysfn_terminate
    mov    [application_table_status],0
    sti
    and    dword [esp+36],0
    ret
.not_found:
    mov    [application_table_status],0
    or     dword [esp+36],-1
    ret
 
sysfn_activate:         ; 18.3 = ACTIVATE WINDOW
     cmp  ebx,2
     jb   .nowindowactivate
     cmp  ebx,[TASK_COUNT]
     ja   .nowindowactivate
 
     mov   [window_minimize], 2   ; restore window if minimized
 
     movzx esi, word [WIN_STACK + ebx*2]
     cmp   esi, [TASK_COUNT]
     je    .nowindowactivate ; already active
 
     mov   edi, ebx
     shl   edi, 5
     add   edi, window_data
     movzx esi, word [WIN_STACK + ebx * 2]
     lea   esi, [WIN_POS + esi * 2]
     call  waredraw
.nowindowactivate:
     ret
 
sysfn_getidletime:              ; 18.4 = GET IDLETIME
     mov  eax,[idleusesec]
     mov  [esp+36], eax
     ret
 
sysfn_getcpuclock:              ; 18.5 = GET TSC/SEC
     mov  eax,[CPU_FREQ]
     mov  [esp+36], eax
     ret
 
;  SAVE ramdisk to /hd/1/menuet.img
;!!!!!!!!!!!!!!!!!!!!!!!!
   include 'blkdev/rdsave.inc'
;!!!!!!!!!!!!!!!!!!!!!!!!
 
sysfn_getactive:        ; 18.7 = get active window
     mov  eax, [TASK_COUNT]
   movzx  eax, word [WIN_POS + eax*2]
     mov  [esp+36],eax
     ret
 
sysfn_sound_flag:       ; 18.8 = get/set sound_flag
     cmp  ebx,1
     jne  nogetsoundflag
     movzx  eax,byte [sound_flag] ; get sound_flag
     mov  [esp+36],eax
     ret
 nogetsoundflag:
     cmp  ebx,2
     jnz  nosoundflag
     xor  byte [sound_flag], 1
 nosoundflag:
     ret
 
sysfn_shutdown_param:   ; 18.9 = system shutdown with param
     cmp  ebx,1
     jl   exit_for_anyone
     cmp  ebx,4
     jg   exit_for_anyone
     mov  [BOOT_VAR+0x9030],bl
     jmp  for_shutdown_parameter
 
sysfn_minimize:         ; 18.10 = minimize window
     mov   [window_minimize],1
 exit_for_anyone:
     ret
 
sysfn_getdiskinfo:      ; 18.11 = get disk info table
     cmp  ebx,1
     jnz  full_table
  small_table:
     call for_all_tables
     mov ecx,10
     cld
     rep movsb
     ret
   for_all_tables:
     mov edi,[TASK_BASE]
     mov edi,[edi+TASKDATA.mem_start]
     add edi,ecx
     mov esi,DRIVE_DATA
     ret
  full_table:
     cmp  ebx,2
     jnz  exit_for_anyone
     call for_all_tables
     mov ecx,16384
     cld
     rep movsd
     ret
 
sysfn_lastkey:          ; 18.12 = return 0 (backward compatibility)
        and     dword [esp+36], 0
        ret
 
sysfn_getversion:       ; 18.13 = get kernel ID and version
     mov edi,[TASK_BASE]
     mov edi,[edi+TASKDATA.mem_start]
     add edi,ebx
     mov esi,version_inf
     mov ecx,version_end-version_inf
     cld
     rep movsb
     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
     mov [esp+36],dword 0
     ret
 
sysfn_centermouse:      ; 18.15 = mouse centered
     call  mouse_centered
     mov [esp+36],dword 0
     ret
 
sysfn_mouse_acceleration: ; 18.19 = set/get mouse features
     cmp  ebx,0  ; get mouse speed factor
     jnz  .set_mouse_acceleration
     xor  eax,eax
     mov  ax,[mouse_speed_factor]
     mov  [esp+36],eax
     ret
 .set_mouse_acceleration:
     cmp  ebx,1  ; set mouse speed factor
     jnz  .get_mouse_delay
     mov  [mouse_speed_factor],cx
     ret
 .get_mouse_delay:
     cmp  ebx,2  ; get mouse delay
     jnz  .set_mouse_delay
     mov  eax,[mouse_delay]
     mov  [esp+36],eax
     ret
 .set_mouse_delay:
     cmp  ebx,3  ; set mouse delay
     jnz  .set_pointer_position
     mov  [mouse_delay],ecx
     ret
 .set_pointer_position:
     cmp  ebx,4  ; set mouse pointer position
     jnz  .end
     mov   [MOUSE_Y],cx    ;y
     ror   ecx,16
     mov   [MOUSE_X],cx    ;x
     rol   ecx,16
 .end:
     ret
 
sysfn_getfreemem:
     mov eax, [pg_data.pages_free]
     shl eax, 2
     mov [esp+36],eax
     ret
 
sysfn_getallmem:
     mov  eax,[MEM_AMOUNT]
     shr eax, 10
     mov  [esp+36],eax
     ret
 
uglobal
;// mike.dld, 2006-29-01 [
screen_workarea RECT
;// mike.dld, 2006-29-01 ]
window_minimize db 0
sound_flag      db 0
endg
 
iglobal
version_inf:
  db 0,6,5,0  ; version 0.6.5.0
  db UID_KOLIBRI
  db 'Kolibri',0
version_end:
endg
 
UID_NONE=0
UID_MENUETOS=1   ;official
UID_KOLIBRI=2    ;russian
 
sys_cachetodiskette:
;    pushad
;    cmp  eax,1
;    jne  no_write_all_of_ramdisk
;    call fdc_writeramdisk
;    popad
;    ret
;  no_write_all_of_ramdisk:
;    cmp eax,2
;    jne no_write_part_of_ramdisk
;    call fdc_commitflush
;    popad
;    ret
;  no_write_part_of_ramdisk:
;    cmp  eax,3
;    jne  no_set_fdc
;    call fdc_set
;    popad
;    ret
;  no_set_fdc:
;    cmp  eax,4
;    jne  no_get_fdc
;    popad
;    call fdc_get
;    mov    [esp+36],ecx
;    ret
;  no_get_fdc:
;    popad
;    ret
    cmp eax,1
    jne no_floppy_a_save
    mov   [flp_number],1
    jmp save_image_on_floppy
  no_floppy_a_save:
    cmp eax,2
    jne no_floppy_b_save
    mov   [flp_number],2
  save_image_on_floppy:
    call save_image
    mov  [esp+36],dword 0
    cmp  [FDC_Status],0
    je   yes_floppy_save
  no_floppy_b_save:
    mov [esp+36],dword 1
  yes_floppy_save:
    ret
 
uglobal
;  bgrchanged  dd  0x0
endg
 
sys_background:
 
    cmp   eax,1                            ; BACKGROUND SIZE
    jnz   nosb1
    cmp   ebx,0
    je    sbgrr
    cmp   ecx,0
    je    sbgrr
    mov   [display_data-8],ebx
    mov   [display_data-4],ecx
;    mov   [bgrchanged],1
  sbgrr:
    ret
  nosb1:
 
    cmp   eax,2                            ; SET PIXEL
    jnz   nosb2
    mov   edx,0x160000-16
    cmp   edx,ebx
    jbe   nosb2
    mov   edx,[ebx]
    and   edx,0xFF000000 ;255*256*256*256
    and   ecx,0x00FFFFFF ;255*256*256+255*256+255
    add   edx,ecx
    mov   [ebx+IMG_BACKGROUND],edx
;    mov   [bgrchanged],1
    ret
  nosb2:
 
    cmp   eax,3                            ; DRAW BACKGROUND
    jnz   nosb3
draw_background_temp:
;    cmp   [bgrchanged],1 ;0
;    je    nosb31
;draw_background_temp:
;    mov   [bgrchanged],1 ;0
    mov   [REDRAW_BACKGROUND],byte 1
    mov    [background_defined], 1
   nosb31:
    ret
  nosb3:
 
    cmp   eax,4                            ; TILED / STRETCHED
    jnz   nosb4
    cmp   ebx,[display_data-12]
    je    nosb41
    mov   [display_data-12],ebx
;    mov   [bgrchanged],1
   nosb41:
    ret
  nosb4:
 
    cmp   eax,5                            ; BLOCK MOVE TO BGR
    jnz   nosb5
  ; bughere
    mov   edi, [TASK_BASE]
    add   ebx, [edi+TASKDATA.mem_start]
 ;   mov   esi, ebx
 ;   mov   edi, ecx
    mov   eax, ebx
    mov   ebx, ecx
    add   ecx, edx
    cmp   ecx, 0x160000-16
    ja    .fin
 ;   add   edi, 0x300000
    add   ebx, IMG_BACKGROUND
    mov   ecx, edx
    cmp   ecx, 0x160000-16
    ja    .fin
;    mov   [bgrchanged],1
  ;  cld
  ;  rep   movsb
    call  memmove
  .fin:
    ret
  nosb5:
 
    ret
 
 
align 4
 
sys_getbackground:
 
    cmp   eax,1                                  ; SIZE
    jnz   nogb1
    mov   eax,[display_data-8]
    shl   eax,16
    mov   ax,[display_data-4]
    mov   [esp+36],eax
    ret
  nogb1:
 
    cmp   eax,2                                  ; PIXEL
    jnz   nogb2
    mov   edx,0x160000-16
    cmp   edx,ebx
    jbe   nogb2
    mov   eax, [ebx+IMG_BACKGROUND]
    and   eax, 0xFFFFFF
    mov   [esp+36],eax
    ret
  nogb2:
 
    cmp   eax,4                                  ; TILED / STRETCHED
    jnz   nogb4
    mov   eax,[display_data-12]
  nogb4:
    mov   [esp+36],eax
    ret
 
 
align 4
 
sys_getkey:
    mov   [esp+36],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 eax,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   esi,0xf402
 ;   mov   edi,0xf401
 ;   cld
 ;  rep   movsb
    mov   eax, KEY_BUFF+1
    mov   ebx, KEY_BUFF
    call  memmove
    pop   eax
.ret_eax:
    mov   [esp+36],eax
    ret
 .finish:
; test hotkeys buffer
        mov     ecx, hotkey_buffer
@@:
        cmp     [ecx], ebx
        jz      .found
        add     ecx, 8
        cmp     ecx, hotkey_buffer+120*8
        jb      @b
        ret
.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+36],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]
    shl   eax,8
    mov   [BTN_COUNT],byte 0
    mov   [esp+36],eax
 .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
;
 
    mov  edi,[TASK_BASE]   ; eax = return area
    add  eax,[edi + TASKDATA.mem_start]
 
    cmp  ebx,-1         ; who am I ?
    jne  no_who_am_i
    mov  ebx,[CURRENT_TASK]
  no_who_am_i:
 
    push eax            ; return area
    push ebx            ; process number
 
    push ebx
    push ebx
    push eax
 
    ; return memory usage
 
    xor  edx,edx
    mov  eax,0x20
    mul  ebx
    add  eax,CURRENT_TASK+TASKDATA.cpu_usage
    mov  ebx,eax
    pop  eax
    mov  ecx,[ebx]
    mov  [eax],ecx
    pop  ebx
    mov  cx, [WIN_STACK + ebx * 2]
    mov  [eax+4],cx
    mov  cx, [WIN_POS + ebx * 2]
    mov  [eax+6],cx
    push eax
    mov  eax,ebx
    shl  eax,8
    add  eax,SLOT_BASE+APPDATA.app_name
    pop  ebx
    add  ebx,10
    mov  ecx,11
    call memmove
 
    ; memory usage
 
    xor    eax,eax
    mov    edx,0x100000*16
    pop    ecx                                   ; get gdt of tss
    cmp    ecx,1
    je     os_mem
    shl    ecx,8
    mov    edx,[SLOT_BASE+ecx+APPDATA.mem_size] ;0x8c
    mov    eax,std_application_base_address
    ; eax run base -> edx used memory
  os_mem:
    dec    edx
    mov    [ebx+12],eax
    mov    [ebx+16],edx
 
    ; PID (+30)
 
    mov    eax,[esp]
    shl    eax,5
    add    eax,CURRENT_TASK+TASKDATA.pid
    mov    eax,[eax]
    mov    [ebx+20],eax
 
    ; window position and size
 
    mov    esi,[esp]
    shl    esi,5
    add    esi,window_data + WDATA.box
    mov    edi,[esp+4]
    add    edi,34
    mov    ecx,4
    cld
    rep    movsd
 
    ; Process state (+50)
 
    mov    eax,[esp]
    shl    eax,5
    add    eax,CURRENT_TASK+TASKDATA.state
    mov    eax,[eax]
    mov    [ebx+40],ax
 
    ; Window client area box
 
    mov    esi,[esp]
    shl    esi,8
    add    esi,SLOT_BASE+APPDATA.wnd_clientbox
    lea    edi,[ebx+44]
    mov    ecx,4
    rep    movsd
 
    ; Window state
 
    mov    esi,[esp]
    shl    esi,5
    add    esi,window_data + WDATA.box
    mov    al,[esi+WDATA.fl_wstate]
    mov    [edi],al
 
    pop    ebx
    pop    eax
 
    ; return number of processes
 
    mov    eax,[TASK_COUNT]
    mov    [esp+36],eax
    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+36],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+36],ecx
        ret
 
 
; redraw status
 
sys_redrawstat:
 
    cmp  eax,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   eax,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,[ScreenWidth]
    mov   [edx+RECT.right],eax
    mov   eax,[ScreenHeight]
    mov   [edx+RECT.bottom],eax
 
    mov   edi,[TASK_BASE]
    or    [edi-twdw+WDATA.fl_wdrawn], 1   ; no new position & buttons from app
 
    call  sys_window_mouse
 
    ret
 
  srl1:
 
    ret
 
 
sys_drawwindow:
 
    mov   edi,ecx
    shr   edi,16+8
    and   edi,15
 
    cmp   edi,0   ; type I    - original style
    jne   nosyswI
    inc   [mouse_pause]
    call  [disable_mouse]
    call  sys_set_window
    call  [disable_mouse]
    call  drawwindow_I
    ;dec   [mouse_pause]
    ;call   [draw_pointer]
    ;ret
    jmp   draw_window_caption.2
  nosyswI:
 
    cmp   edi,1   ; type II   - only reserve area, no draw
    jne   nosyswII
    inc   [mouse_pause]
    call  [disable_mouse]
    call  sys_set_window
    call  [disable_mouse]
    call  sys_window_mouse
    dec   [mouse_pause]
    call   [draw_pointer]
    ret
  nosyswII:
 
    cmp   edi,2   ; type III  - new style
    jne   nosyswIII
    inc   [mouse_pause]
    call  [disable_mouse]
    call  sys_set_window
    call  [disable_mouse]
    call  drawwindow_III
    ;dec   [mouse_pause]
    ;call   [draw_pointer]
    ;ret
    jmp   draw_window_caption.2
  nosyswIII:
 
    cmp   edi,3   ; type IV - skinned window
    jne   nosyswIV
 
    ; parameter for drawwindow_IV
    push  0
    mov   edi, [TASK_COUNT]
    movzx edi, word [WIN_POS + edi*2]
    cmp   edi, [CURRENT_TASK]
    jne   @f
    inc   dword [esp]
 @@:
 
    inc   [mouse_pause]
    call  [disable_mouse]
    call  sys_set_window
    call  [disable_mouse]
    call  drawwindow_IV
    ;dec   [mouse_pause]
    ;call   [draw_pointer]
    ;ret
    jmp   draw_window_caption.2
  nosyswIV:
 
    ret
 
 
draw_window_caption:
        inc     [mouse_pause]
        call    [disable_mouse]
 
        xor     eax,eax
        mov     edx,[TASK_COUNT]
        movzx   edx,word[WIN_POS+edx*2]
        cmp     edx,[CURRENT_TASK]
        jne     @f
        inc     eax
    @@: mov     edx,[CURRENT_TASK]
        shl     edx,5
        add     edx,window_data
        movzx   ebx,[edx+WDATA.fl_wstyle]
        and     bl,0x0F
        cmp     bl,3
        jne     .not_style_3
 
        push    edx
        call    drawwindow_IV_caption
        add     esp,4
        jmp     .2
 
  .not_style_3:
        cmp     bl,2
        jne     .not_style_2
 
        call    drawwindow_III_caption
        jmp     .2
 
  .not_style_2:
        cmp     bl,0
        jne     .2
 
        call    drawwindow_I_caption
 
;--------------------------------------------------------------
  .2:   ;jmp     @f
        mov     edi,[CURRENT_TASK]
        shl     edi,5
        test    [edi+window_data+WDATA.fl_wstyle],WSTYLE_HASCAPTION
        jz      @f
        mov     ecx,[edi*8+SLOT_BASE+APPDATA.wnd_caption]
        or      ecx,ecx
        jz      @f
        add     ecx,[edi+CURRENT_TASK+TASKDATA.mem_start]
 
        movzx   eax,[edi+window_data+WDATA.fl_wstyle]
        and     al,0x0F
        cmp     al,3
        jne     .not_skinned
 
        mov     ebp,[edi+window_data+WDATA.box.left-2]
        mov     bp,word[edi+window_data+WDATA.box.top]
        movzx   eax,word[edi+window_data+WDATA.box.width]
        sub     ax,[_skinmargins.left]
        sub     ax,[_skinmargins.right]
        cwde
        cdq
        mov     ebx,6
        idiv    ebx
        or      eax,eax
        js      @f
        mov     edx,eax
        mov     eax,dword[_skinmargins.left-2]
        mov     ax,word[_skinh]
        sub     ax,[_skinmargins.bottom]
        sub     ax,[_skinmargins.top]
        sar     ax,1
        adc     ax,0
        add     ax,[_skinmargins.top]
        add     ax,-3
        add     eax,ebp
        jmp     .dodraw
 
  .not_skinned:
        cmp     al,1
        je      @f
 
        mov     ebp,[edi+window_data+WDATA.box.left-2]
        mov     bp,word[edi+window_data+WDATA.box.top]
        movzx   eax,word[edi+window_data+WDATA.box.width]
        sub     eax,16
        cwde
        cdq
        mov     ebx,6
        idiv    ebx
        or      eax,eax
        js      @f
        mov     edx,eax
        mov     eax,0x00080007
        add     eax,ebp
.dodraw:
        mov     ebx,[common_colours+16];0x00FFFFFF
        or      ebx, 0x80000000
        xor     edi,edi
        call    dtext
 
    @@:
;--------------------------------------------------------------
        dec     [mouse_pause]
        call    [draw_pointer]
        ret
 
iglobal
align 4
window_topleft dd \
  1, 21,\
  0,  0,\
  5, 20,\
  5,  ?
endg
 
set_window_clientbox:
        push    eax ecx edi
 
        mov     eax,[_skinh]
        mov     [window_topleft+4*7],eax
 
        mov     ecx,edi
        sub     edi,window_data
        shl     edi,3
        test    [ecx+WDATA.fl_wstyle],WSTYLE_CLIENTRELATIVE
        jz      @f
 
        movzx   eax,[ecx+WDATA.fl_wstyle]
        and     eax,0x0F
        mov     eax,[eax*8+window_topleft+0]
        mov     [edi+SLOT_BASE+APPDATA.wnd_clientbox.left],eax
        shl     eax,1
        neg     eax
        add     eax,[ecx+WDATA.box.width]
        mov     [edi+SLOT_BASE+APPDATA.wnd_clientbox.width],eax
 
        movzx   eax,[ecx+WDATA.fl_wstyle]
        and     eax,0x0F
        push    [eax*8+window_topleft+0]
        mov     eax,[eax*8+window_topleft+4]
        mov     [edi+SLOT_BASE+APPDATA.wnd_clientbox.top],eax
        neg     eax
        sub     eax,[esp]
        add     eax,[ecx+WDATA.box.height]
        mov     [edi+SLOT_BASE+APPDATA.wnd_clientbox.height],eax
        add     esp,4
 
        pop     edi ecx eax
        ret
    @@:
        xor     eax,eax
        mov     [edi+SLOT_BASE+APPDATA.wnd_clientbox.left],eax
        mov     [edi+SLOT_BASE+APPDATA.wnd_clientbox.top],eax
        mov     eax,[ecx+WDATA.box.width]
        mov     [edi+SLOT_BASE+APPDATA.wnd_clientbox.width],eax
        mov     eax,[ecx+WDATA.box.height]
        mov     [edi+SLOT_BASE+APPDATA.wnd_clientbox.height],eax
 
        pop     edi ecx eax
        ret
 
sys_set_window:
 
    mov   edi,[CURRENT_TASK]
    shl   edi,5
    add   edi,window_data
 
    ; colors
    mov   [edi+WDATA.cl_workarea],ecx
    mov   [edi+WDATA.cl_titlebar],edx
    mov   [edi+WDATA.cl_frames],esi
 
    ; check flag (?)
    test  [edi+WDATA.fl_wdrawn],1
    jnz   newd
 
    push  eax
    mov   eax,[timer_ticks] ;[0xfdf0]
    add   eax,100
    mov   [new_window_starting],eax
    pop   eax
 
    mov   word[edi+WDATA.box.width],ax
    mov   word[edi+WDATA.box.height],bx
    sar   eax,16
    sar   ebx,16
    mov   word[edi+WDATA.box.left],ax
    mov   word[edi+WDATA.box.top],bx
 
    call  check_window_position
 
    call  set_window_clientbox
 
    push  ecx esi edi               ; save for window fullscreen/resize
    ;mov   esi,edi
 
        mov     cl,[edi+WDATA.fl_wstyle]
 
    sub   edi,window_data
    shl   edi,3
    add   edi,SLOT_BASE
 
        and     cl,0x0F
        mov     [edi+APPDATA.wnd_caption],0
        cmp     cl,3
        jne     @f
        mov     [edi+APPDATA.wnd_caption],esi
    @@: mov     esi,[esp+0]
 
    add   edi, APPDATA.saved_box
        movsd
        movsd
        movsd
        movsd
    pop   edi esi ecx
 
    push  eax ebx ecx edx
;;;    mov   eax, 1
;;;    call  delay_hs
    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
    call  calculatescreen
    pop   edx ecx ebx eax
 
    mov   [KEY_COUNT],byte 0           ; empty keyboard buffer
    mov   [BTN_COUNT],byte 0           ; empty button buffer
 
  newd:
    mov   [edi+WDATA.fl_redraw],byte 0   ; no redraw
    mov   edx,edi
 
    ret
 
syscall_windowsettings:
 
  .set_window_caption:
        dec     eax     ; subfunction #1 - set window caption
        jnz     .get_window_caption
 
        ; NOTE: only window owner thread can set its caption,
        ;       so there's no parameter for PID/TID
 
        mov     edi,[CURRENT_TASK]
        shl     edi,5
 
        ; have to check if caption is within application memory limit
        ; check is trivial, and if application resizes its memory,
        ;   caption still can become over bounds
; diamond, 31.10.2006: check removed because with new memory manager
; there can be valid data after APPDATA.mem_size bound
;        mov     ecx,[edi*8+SLOT_BASE+APPDATA.mem_size]
;        add     ecx,255 ; max caption length
;        cmp     ebx,ecx
;        ja      .exit_fail
 
        mov     [edi*8+SLOT_BASE+APPDATA.wnd_caption],ebx
        or      [edi+window_data+WDATA.fl_wstyle],WSTYLE_HASCAPTION
 
        call    draw_window_caption
 
        xor     eax,eax ; eax = 0 (success)
        ret
 
  .get_window_caption:
        dec     eax     ; subfunction #2 - get window caption
        jnz     .exit_fail
 
        ; not implemented yet
 
  .exit_fail:
        xor     eax,eax
        inc     eax     ; eax = 1 (fail)
        ret
 
 
sys_window_move:
 
        mov     edi,[CURRENT_TASK]
        shl     edi,5
        add     edi,window_data
 
        test    [edi+WDATA.fl_wstate],WSTATE_MAXIMIZED
        jnz     .window_move_return
 
        push    dword [edi + WDATA.box.left]  ; save old coordinates
        push    dword [edi + WDATA.box.top]
        push    dword [edi + WDATA.box.width]
        push    dword [edi + WDATA.box.height]
 
        cmp   eax,-1                  ; set new position and size
        je    .no_x_reposition
        mov     [edi + WDATA.box.left], eax
      .no_x_reposition:
        cmp   ebx,-1
        je    .no_y_reposition
        mov     [edi + WDATA.box.top], ebx
      .no_y_reposition:
 
        test    [edi+WDATA.fl_wstate],WSTATE_ROLLEDUP
        jnz     .no_y_resizing
 
        cmp   ecx,-1
        je    .no_x_resizing
        mov     [edi + WDATA.box.width], ecx
      .no_x_resizing:
        cmp   edx,-1
        je    .no_y_resizing
        mov     [edi + WDATA.box.height], edx
      .no_y_resizing:
 
        call  check_window_position
        call  set_window_clientbox
 
        pushad                       ; save for window fullscreen/resize
        mov   esi,edi
        sub   edi,window_data
        shr   edi,5
        shl   edi,8
        add   edi, SLOT_BASE + APPDATA.saved_box
        mov   ecx,4
        cld
        rep   movsd
        popad
 
        pushad                       ; calculcate screen at new position
        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
 
        call  calculatescreen
        popad
 
        pop   edx                   ; calculcate screen at old position
        pop   ecx
        pop   ebx
        pop   eax
        add   ecx,eax
        add   edx,ebx
        mov   [dlx],eax             ; save for drawlimits
        mov   [dly],ebx
        mov   [dlxe],ecx
        mov   [dlye],edx
        call  calculatescreen
 
        mov   [edi + WDATA.fl_redraw], 1 ; flag the process as redraw
 
        mov   eax,edi               ; redraw screen at old position
        xor   esi,esi
        call  redrawscreen
 
        mov   [DONT_DRAW_MOUSE],byte 0 ; mouse pointer
        mov   [MOUSE_BACKGROUND],byte 0 ; no mouse under
        mov   [MOUSE_DOWN],byte 0 ; react to mouse up/down
 
        mov   ecx,10          ; wait 1/10 second
      .wmrl3:
        call  [draw_pointer]
        mov   eax,1
        call  delay_hs
        loop  .wmrl3
 
        mov   [window_move_pr],0
 
      .window_move_return:
 
        ret
 
;type_background_1:
;    cmp   [0xfff0],byte 0               ; background update ?
;    jz    temp_nobackgr
;    mov   [0xfff0],byte 2
;    call  change_task
;    mov   [draw_data+32+0],dword 0
;    mov   [draw_data+32+4],dword 0
;    mov   eax,[ScreenWidth
;    mov   ebx,[0xfe04]
;    mov   [draw_data+32+8],eax
;    mov   [draw_data+32+12],ebx
;    call  drawbackground
;    mov   [0xfff0],byte 0
;    mov   [MOUSE_BACKGROUND],byte 0
;temp_nobackgr:
;    ret
 
uglobal
  window_move_pr   dd  0x0
  window_move_eax  dd  0x0
  window_move_ebx  dd  0x0
  window_move_ecx  dd  0x0
  window_move_edx  dd  0x0
endg
 
;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.
;---------------------------------------------------------------------------------------------
sys_sheduler: ;noname & halyavin
    cmp eax,0
    je shed_counter
    cmp eax,2
    je perf_control
    cmp eax,3
    je rdmsr_instr
    cmp eax,4
    je wrmsr_instr
    cmp eax,1
    jne not_supported
    call change_task ;delay,0
ret
shed_counter:
    mov eax,[context_counter]
    mov [esp+36],eax
not_supported:
ret
perf_control:
    inc eax ;now eax=3
    cmp ebx,eax
    je cache_disable
    dec eax
    cmp ebx,eax
    je cache_enable
    dec eax
    cmp ebx,eax
    je is_cache_enabled
    dec eax
    cmp ebx,eax
    je modify_pce
ret
 
rdmsr_instr:
;now counter in ecx
;(edx:eax) esi:edi => edx:esi
mov eax,esi
rdmsr
mov [esp+36],eax
mov [esp+24],edx ;ret in ebx?
ret
 
wrmsr_instr:
;now counter in ecx
;(edx:eax) esi:edi => edx:esi
mov eax,esi
wrmsr
mov [esp+36],eax
mov [esp+24],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+36],ebx
cache_disabled:
       mov dword [esp+36],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+36],eax
ret
;---------------------------------------------------------------------------------------------
 
 
; check if pixel is allowed to be drawn
 
checkpixel:
        push eax edx
 
        mov  edx,[ScreenWidth]     ; screen x size
        inc  edx
        imul edx, ebx
        mov  dl, [eax+edx+display_data] ; lea eax, [...]
 
        xor  ecx, ecx
        mov  eax, [CURRENT_TASK]
        cmp  al, dl
        setne cl
 
        pop  edx eax
        ret
 
uglobal
  mouse_active  db  0
endg
iglobal
  cpustring db '/RD/1/CPU',0
endg
 
uglobal
background_defined    db    0    ; diamond, 11.04.2006
endg
 
align 4
; check misc
 
checkmisc:
 
    cmp   [ctrl_alt_del], 1
    jne   nocpustart
    mov   ebp, cpustring
    lea   esi,[ebp+6]
    xor   ebx,ebx               ; no parameters
    xor   edx,edx               ; no flags
    call  fs_RamdiskExecute.flags
    mov   [ctrl_alt_del], 0
  nocpustart:
    cmp   [mouse_active], 1
    jne   mouse_not_active
    mov   [mouse_active], 0
    xor   edi, edi
    mov   ecx, [TASK_COUNT]
   set_mouse_event:
    add   edi, 256
    or    [edi+SLOT_BASE+APPDATA.event_mask], dword 00100000b
    loop  set_mouse_event
  mouse_not_active:
 
 
    cmp   [REDRAW_BACKGROUND],byte 0               ; background update ?
    jz    nobackgr
    cmp    [background_defined], 0
    jz    nobackgr
    mov   [REDRAW_BACKGROUND],byte 2
    call  change_task
	mov   [draw_data+32 + RECT.left],dword 0
	mov   [draw_data+32 + RECT.top],dword 0
    mov   eax,[ScreenWidth]
    mov   ebx,[ScreenHeight]
	mov   [draw_data+32 + RECT.right],eax
	mov   [draw_data+32 + RECT.bottom],ebx
    call  drawbackground
    mov   [REDRAW_BACKGROUND],byte 0
    mov   [MOUSE_BACKGROUND],byte 0
 
  nobackgr:
 
 
    ; system shutdown request
 
    cmp  [SYS_SHUTDOWN],byte 0
    je   noshutdown
 
    mov  edx,[shutdown_processes]
    sub  dl,2
 
    cmp  [SYS_SHUTDOWN],dl
    jne  no_mark_system_shutdown
 
    mov   edx,OS_BASE+0x3040
    movzx ecx,byte [SYS_SHUTDOWN]
    add   ecx,5
  markz:
    mov   [edx+TASKDATA.state],byte 3
    add   edx,0x20
    loop  markz
 
  no_mark_system_shutdown:
 
    call [disable_mouse]
 
    dec  byte [SYS_SHUTDOWN]
 
    cmp  [SYS_SHUTDOWN],byte 0
    je   system_shutdown
 
  noshutdown:
 
 
    mov   eax,[TASK_COUNT]                  ; termination
    mov   ebx,TASK_DATA+TASKDATA.state
    mov   esi,1
 
  newct:
    mov   cl,[ebx]
    cmp   cl,byte 3
    jz    terminate
    cmp   cl,byte 4
    jz    terminate
 
    add   ebx,0x20
    inc   esi
    dec   eax
    jnz   newct
 
    ret
 
 
 
 
; redraw screen
 
redrawscreen:
 
; eax , if process window_data base is eax, do not set flag/limits
 
         pushad
         push  eax
 
;;;         mov   eax,2
;;;         call  delay_hs
 
         ;mov   ecx,0               ; redraw flags for apps
         xor   ecx,ecx
       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, [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   ecx,[dlye]   ; ecx = area y end     ebx = window y start
         cmp   ecx,ebx
         jb    ricino
 
         mov   ecx,[dlxe]   ; 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,[dly]    ; eax = area y start     edx = window y end
         cmp   edx,eax
         jb    ricino
 
         mov   eax,[dlx]    ; eax = area x start     ecx = window x end
         cmp   ecx,eax
         jb    ricino
 
        bgli:
 
         cmp   edi,esi
         jz    ricino
 
         mov   eax,edi
         add   eax,draw_data-window_data
 
         mov   ebx,[dlx]          ; set limits
         mov   [eax + RECT.left], ebx
         mov   ebx,[dly]
         mov   [eax + RECT.top], ebx
         mov   ebx,[dlxe]
         mov   [eax + RECT.right], ebx
         mov   ebx,[dlye]
         mov   [eax + RECT.bottom], ebx
 
         sub   eax,draw_data-window_data
 
         cmp   ecx,1
         jne   nobgrd
         cmp   esi,1
         je    newdw8
         call  drawbackground
 
       newdw8:
       nobgrd:
 
         mov   [eax + WDATA.fl_redraw],byte 1    ; mark as redraw
 
       ricino:
 
       not_this_task:
 
         pop   ecx
 
         cmp   ecx,[TASK_COUNT]
         jle   newdw2
 
         pop  eax
         popad
 
         ret
 
calculatebackground:   ; background
 
        ; all black
 
        mov   [display_data-8],dword 4      ; size x
        mov   [display_data-4],dword 2      ; size y
 
        mov   edi, IMG_BACKGROUND                 ; set background to black
        xor   eax, eax
        mov   ecx, 0x0fff00 / 4
        cld
        rep   stosd
 
        mov   edi,display_data              ; set os to use all pixels
        mov   eax,0x01010101
        mov   ecx,0x15ff00 / 4
        rep   stosd
 
        mov   byte [REDRAW_BACKGROUND], 0              ; do not draw background!
 
        ret
 
uglobal
  imax    dd 0x0
endg
 
 
 
delay_ms:     ; delay in 1/1000 sec
 
 
        push  eax
        push  ecx
 
        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
 
        pop   ecx
        pop   eax
 
        ret
 
 
set_app_param:
        push edi
 
        mov  edi,[TASK_BASE]
        mov  [edi+TASKDATA.event_mask],eax
 
        pop  edi
        ret
 
 
 
delay_hs:     ; delay in 1/100 secs
        push  eax
        push  ecx
        push  edx
 
        mov   edx,[timer_ticks]
        add   edx,eax
 
      newtic:
        mov   ecx,[timer_ticks]
        cmp   edx,ecx
        jbe   zerodelay
 
        call  change_task
 
        jmp   newtic
 
      zerodelay:
        pop   edx
        pop   ecx
        pop   eax
 
        ret
 
 
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
  @@:
    rep  movsb
 
  .finish:
    pop  ecx edi esi
  .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
 
sys_programirq:
 
    mov   edi,[TASK_BASE]
    add   eax,[edi+TASKDATA.mem_start]
 
    cmp   ebx,16
    jae   .not_owner
    mov   edi,[TASK_BASE]
    mov   edi,[edi+TASKDATA.pid]
    cmp   edi,[irq_owner+ebx*4]
    je    spril1
.not_owner:
    mov   [esp+36],dword 1
    ret
  spril1:
 
    mov   esi,eax
    shl   ebx,6
    add   ebx,irq00read
    mov   edi,ebx
    mov   ecx,16
    cld
    rep   movsd
    mov   [esp+36],dword 0
    ret
 
 
align 4
 
get_irq_data:
     cmp   eax,16
     jae   .not_owner
     mov   edx,eax           ; check for correct owner
     shl   edx,2
     add   edx,irq_owner
     mov   edx,[edx]
     mov   edi,[TASK_BASE]
     mov   edi,[edi+TASKDATA.pid]
     cmp   edx,edi
     je    gidril1
.not_owner:
     mov   [esp+32],dword 2     ; ecx=2
     ret
 
  gidril1:
 
     mov   ebx,eax
     shl   ebx,12
     add   ebx,IRQ_SAVE
     mov   eax,[ebx]
     mov   ecx,1
     test  eax,eax
     jz    gid1
 
     dec   eax
     mov   esi,ebx
     mov   [ebx],eax
     movzx ebx,byte [ebx+0x10]
     add   esi,0x10
     mov   edi,esi
     inc   esi
     mov   ecx,4000 / 4
     cld
     rep   movsd
;     xor   ecx,ecx     ; as result of 'rep' ecx=0
   gid1:
     mov   [esp+36],eax
     mov   [esp+32],ecx
     mov   [esp+24],ebx
     ret
 
 
set_io_access_rights:
 
     pushad
 
     mov   edi,[CURRENT_TASK]
     imul  edi,tss_step
     add   edi,tss_data+128
;     add   edi,128
 
     mov   ecx,eax
     and   ecx,7    ; offset in byte
 
     shr   eax,3    ; number of byte
     add   edi,eax
 
     mov   ebx,1
     shl   ebx,cl
 
     cmp   ebp,0                ; enable access - ebp = 0
     jne   siar1
 
     not   ebx
     and   [edi],byte bl
 
     popad
 
     ret
 
   siar1:
 
     or    [edi],byte bl        ; disable access - ebp = 1
 
     popad
 
     ret
 
r_f_port_area:
 
     test  eax, eax
     jnz   free_port_area
;     je    r_port_area
;     jmp   free_port_area
 
;   r_port_area:
 
     pushad
 
     cmp   ebx,ecx            ; beginning > end ?
     ja    rpal1
     cmp   ecx,65536
     jae   rpal1
     mov   esi,[RESERVED_PORTS]
     test  esi,esi            ; no reserved areas ?
     je    rpal2
     cmp   esi,255            ; max reserved
     jae   rpal1
   rpal3:
     mov   edi,esi
     shl   edi,4
     add   edi,RESERVED_PORTS
     cmp   ebx,[edi+8]
     ja    rpal4
     cmp   ecx,[edi+4]
     jae   rpal1
;     jb    rpal4
;     jmp   rpal1
   rpal4:
 
     dec   esi
     jnz   rpal3
     jmp   rpal2
   rpal1:
     popad
     mov   eax,1
     ret
 
   rpal2:
     popad
 
 
     ; enable port access at port IO map
     cli
     pushad                        ; start enable io map
 
     cmp   ecx,65536 ;16384
     jae   no_unmask_io ; jge
 
     mov   eax,ebx
 
   new_port_access:
 
     pushad
 
     xor   ebp,ebp                ; enable - eax = port
     call  set_io_access_rights
 
     popad
 
     inc   eax
     cmp   eax,ecx
     jbe   new_port_access
 
   no_unmask_io:
 
     popad                         ; end enable io map
     sti
 
     mov   edi,[RESERVED_PORTS]
     add   edi,1
     mov   [RESERVED_PORTS],edi
     shl   edi,4
     add   edi,RESERVED_PORTS
     mov   esi,[TASK_BASE]
     mov   esi,[esi+TASKDATA.pid]
     mov   [edi],esi
     mov   [edi+4],ebx
     mov   [edi+8],ecx
 
     xor   eax, eax
     ret
 
free_port_area:
 
     pushad
 
     mov   esi,[RESERVED_PORTS]     ; no reserved areas ?
     test  esi,esi
     je    frpal2
     mov   edx,[TASK_BASE]
     mov   edx,[edx+TASKDATA.pid]
   frpal3:
     mov   edi,esi
     shl   edi,4
     add   edi,RESERVED_PORTS
     cmp   edx,[edi]
     jne   frpal4
     cmp   ebx,[edi+4]
     jne   frpal4
     cmp   ecx,[edi+8]
     jne   frpal4
     jmp   frpal1
   frpal4:
     dec   esi
     jnz   frpal3
   frpal2:
     popad
     mov   eax,1
     ret
   frpal1:
     mov   ecx,256
     sub   ecx,esi
     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
 
     cmp   ecx,65536 ;16384
     jge   no_mask_io
 
     mov   eax,ebx
 
   new_port_access_disable:
 
     pushad
 
     mov   ebp,1                  ; disable - eax = port
     call  set_io_access_rights
 
     popad
 
     inc   eax
     cmp   eax,ecx
     jbe   new_port_access_disable
 
   no_mask_io:
 
     popad                         ; end disable io map
 
     xor   eax, eax
     ret
 
 
reserve_free_irq:
 
     mov   ecx, 1
     cmp   ebx, 16
     jae   fril1
     test  eax,eax
     jz    reserve_irq
 
     lea   edi,[irq_owner+ebx*4]
     mov   edx,[edi]
     mov   eax,[TASK_BASE]
     cmp   edx,[eax+TASKDATA.pid]
     jne   fril1
     dec   ecx
     mov   [edi],ecx
   fril1:
     mov   [esp+36],ecx ; return in eax
     ret
 
  reserve_irq:
 
     lea   edi,[irq_owner+ebx*4]
     cmp   dword [edi], 0
     jnz   ril1
 
     mov   edx,[TASK_BASE]
     mov   edx,[edx+TASKDATA.pid]
     mov   [edi],edx
     dec   ecx
   ril1:
     mov   [esp+36],ecx ; return in eax
     ret
 
drawbackground:
       inc   [mouse_pause]
       cmp   [SCR_MODE],word 0x12
       je   dbrv20
     dbrv12:
       cmp  [SCR_MODE],word 0100000000000000b
       jge  dbrv20
       cmp  [SCR_MODE],word 0x13
       je   dbrv20
       call  vesa12_drawbackground
       dec   [mouse_pause]
       call   [draw_pointer]
       ret
     dbrv20:
       cmp   [display_data-12],dword 1
       jne   bgrstr
       call  vesa20_drawbackground_tiled
       dec   [mouse_pause]
       call   [draw_pointer]
       ret
     bgrstr:
       call  vesa20_drawbackground_stretch
       dec   [mouse_pause]
       call   [draw_pointer]
       ret
 
align 4
 
syscall_putimage:                       ; PutImage
 
     mov   edx,ecx
     mov   ecx,ebx
        lea     ebx, [eax+std_application_base_address]
 
sys_putimage:
     test  ecx,0x80008000
     jnz   .exit
     test  ecx,0x0000FFFF
     jz    .exit
     test  ecx,0xFFFF0000
     jnz   @f
  .exit:
     ret
 @@:
        mov     edi,[CURRENT_TASK]
        shl     edi,8
        add     dx,word[edi+SLOT_BASE+APPDATA.wnd_clientbox.top]
        rol     edx,16
        add     dx,word[edi+SLOT_BASE+APPDATA.wnd_clientbox.left]
        rol     edx,16
  .forced:
        push    ebp esi 0
        mov     ebp, putimage_get24bpp
        mov     esi, putimage_init24bpp
sys_putimage_bpp:
;        call    [disable_mouse] ; this will be done in xxx_putimage
;        mov     eax, vga_putimage
        cmp     [SCR_MODE], word 0x12
        jz      @f   ;.doit
        mov     eax, vesa12_putimage
        cmp     [SCR_MODE], word 0100000000000000b
        jae     @f
        cmp     [SCR_MODE], word 0x13
        jnz     .doit
@@:
        mov     eax, vesa20_putimage
.doit:
        inc     [mouse_pause]
        call    eax
        dec     [mouse_pause]
        pop     ebp esi ebp
        jmp     [draw_pointer]
 
syscall_putimage_palette:
        lea     edi, [esi+std_application_base_address]
        mov     esi, edx
        mov     edx, ecx
        mov     ecx, ebx
        lea     ebx, [eax+std_application_base_address]
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
.forced:
        push    ebp esi ebp
        cmp     esi, 8
        jnz     @f
        mov     ebp, putimage_get8bpp
        mov     esi, putimage_init8bpp
        jmp     sys_putimage_bpp
@@:
        cmp     esi, 24
        jnz     @f
        mov     ebp, putimage_get24bpp
        mov     esi, putimage_init24bpp
        jmp     sys_putimage_bpp
@@:
        cmp     esi, 32
        jnz     @f
        mov     ebp, putimage_get32bpp
        mov     esi, putimage_init32bpp
        jmp     sys_putimage_bpp
@@:
        pop     ebp esi
        ret
 
putimage_init24bpp:
        lea     eax, [eax*3]
putimage_init8bpp:
        ret
 
putimage_get24bpp:
        mov     eax, [esi]
        add     esi, 3
        ret     4
putimage_get8bpp:
        movzx   eax, byte [esi]
        push    edx
        mov     edx, [esp+8]
        mov     eax, [edx+eax*4]
        pop     edx
        inc     esi
        ret     4
 
putimage_init32bpp:
        shl     eax, 2
        ret
putimage_get32bpp:
        lodsd
        ret     4
 
; eax x beginning
; ebx y beginning
; ecx x end
	; edx y end
; edi color
 
__sys_drawbar:
        mov     esi,[CURRENT_TASK]
        shl     esi,8
        add     eax,[esi+SLOT_BASE+APPDATA.wnd_clientbox.left]
        add     ecx,[esi+SLOT_BASE+APPDATA.wnd_clientbox.left]
        add     ebx,[esi+SLOT_BASE+APPDATA.wnd_clientbox.top]
        add     edx,[esi+SLOT_BASE+APPDATA.wnd_clientbox.top]
  .forced:
    inc   [mouse_pause]
;        call    [disable_mouse]
    cmp   [SCR_MODE],word 0x12
    je   dbv20
   sdbv20:
    cmp  [SCR_MODE],word 0100000000000000b
    jge  dbv20
    cmp  [SCR_MODE],word 0x13
    je   dbv20
    call vesa12_drawbar
    dec   [mouse_pause]
    call   [draw_pointer]
    ret
  dbv20:
    call vesa20_drawbar
    dec   [mouse_pause]
    call   [draw_pointer]
    ret
 
 
 
kb_read:
 
        push    ecx edx
 
        mov     ecx,0x1ffff ; last 0xffff, new value in view of fast CPU's
      kr_loop:
        in      al,0x64
        test    al,1
        jnz     kr_ready
        loop    kr_loop
        mov     ah,1
        jmp     kr_exit
      kr_ready:
        push    ecx
        mov     ecx,32
      kr_delay:
        loop    kr_delay
        pop     ecx
        in      al,0x60
        xor     ah,ah
      kr_exit:
 
        pop     edx ecx
 
        ret
 
 
kb_write:
 
        push    ecx edx
 
        mov     dl,al
;        mov     ecx,0x1ffff ; last 0xffff, new value in view of fast CPU's
;      kw_loop1:
;        in      al,0x64
;        test    al,0x20
;        jz      kw_ok1
;        loop    kw_loop1
;        mov     ah,1
;        jmp     kw_exit
;      kw_ok1:
        in      al,0x60
        mov     ecx,0x1ffff ; last 0xffff, new value in view of fast CPU's
      kw_loop:
        in      al,0x64
        test    al,2
        jz      kw_ok
        loop    kw_loop
        mov     ah,1
        jmp     kw_exit
      kw_ok:
        mov     al,dl
        out     0x60,al
        mov     ecx,0x1ffff ; last 0xffff, new value in view of fast CPU's
      kw_loop3:
        in      al,0x64
        test    al,2
        jz      kw_ok3
        loop    kw_loop3
        mov     ah,1
        jmp     kw_exit
      kw_ok3:
        mov     ah,8
      kw_loop4:
        mov     ecx,0x1ffff ; last 0xffff, new value in view of fast CPU's
      kw_loop5:
        in      al,0x64
        test    al,1
        jnz     kw_ok4
        loop    kw_loop5
        dec     ah
        jnz     kw_loop4
      kw_ok4:
        xor     ah,ah
      kw_exit:
 
        pop     edx ecx
 
        ret
 
 
kb_cmd:
 
        mov     ecx,0x1ffff ; last 0xffff, new value in view of fast CPU's
      c_wait:
        in      al,0x64
        test    al,2
        jz      c_send
        loop    c_wait
        jmp     c_error
      c_send:
        mov     al,bl
        out     0x64,al
        mov     ecx,0x1ffff ; last 0xffff, new value in view of fast CPU's
      c_accept:
        in      al,0x64
        test    al,2
        jz      c_ok
        loop    c_accept
      c_error:
        mov     ah,1
        jmp     c_exit
      c_ok:
        xor     ah,ah
      c_exit:
        ret
 
 
setmouse:  ; set mousepicture -pointer
           ; ps2 mouse enable
 
     mov     [MOUSE_PICTURE],dword mousepointer
 
     cli
;     mov     bl,0xa8                 ; enable mouse cmd
;     call    kb_cmd
;     call    kb_read                 ; read status
;     mov     bl,0x20                 ; get command byte
;     call    kb_cmd
;     call    kb_read
;     or      al,3                    ; enable interrupt
;     mov     bl,0x60                 ; write command
;     push    eax
;     call    kb_cmd
;     pop     eax
;     call    kb_write
;     mov     bl,0xd4                 ; for mouse
;     call    kb_cmd
;     mov     al,0xf4                 ; enable mouse device
;     call    kb_write
;     call    kb_read           ; read status return
 
     ; com1 mouse enable
 
     mov   bx,0x3f8 ; combase
 
     mov   dx,bx
     add   dx,3
     mov   al,0x80
     out   dx,al
 
     mov   dx,bx
     add   dx,1
     mov   al,0
     out   dx,al
 
     mov   dx,bx
     add   dx,0
     mov   al,0x30*2    ; 0x30 / 4
     out   dx,al
 
     mov   dx,bx
     add   dx,3
     mov   al,2         ; 3
     out   dx,al
 
     mov   dx,bx
     add   dx,4
     mov   al,0xb
     out   dx,al
 
     mov   dx,bx
     add   dx,1
     mov   al,1
     out   dx,al
 
 
     ; com2 mouse enable
 
     mov   bx,0x2f8 ; combase
 
     mov   dx,bx
     add   dx,3
     mov   al,0x80
     out   dx,al
 
     mov   dx,bx
     add   dx,1
     mov   al,0
     out   dx,al
 
     mov   dx,bx
     add   dx,0
     mov   al,0x30*2
     out   dx,al
 
     mov   dx,bx
     add   dx,3
     mov   al,2
     out   dx,al
 
     mov   dx,bx
     add   dx,4
     mov   al,0xb
     out   dx,al
 
     mov   dx,bx
     add   dx,1
     mov   al,1
     out   dx,al
 
     ret
 
 
_rdtsc:
     bt [cpu_caps], CAPS_TSC
     jnc ret_rdtsc
     rdtsc
     ret
   ret_rdtsc:
     mov   edx,0xffffffff
     mov   eax,0xffffffff
     ret
 
rerouteirqs:
 
        cli
 
        mov     al,0x11         ;  icw4, edge triggered
        out     0x20,al
        call    pic_delay
        out     0xA0,al
        call    pic_delay
 
        mov     al,0x20         ;  generate 0x20 +
        out     0x21,al
        call    pic_delay
        mov     al,0x28         ;  generate 0x28 +
        out     0xA1,al
        call    pic_delay
 
        mov     al,0x04         ;  slave at irq2
        out     0x21,al
        call    pic_delay
        mov     al,0x02         ;  at irq9
        out     0xA1,al
        call    pic_delay
 
        mov     al,0x01         ;  8086 mode
        out     0x21,al
        call    pic_delay
        out     0xA1,al
        call    pic_delay
 
        mov     al,255          ; mask all irq's
        out     0xA1,al
        call    pic_delay
        out     0x21,al
        call    pic_delay
 
        mov     ecx,0x1000
        cld
picl1:  call    pic_delay
        loop    picl1
 
        mov     al,255          ; mask all irq's
        out     0xA1,al
        call    pic_delay
        out     0x21,al
        call    pic_delay
 
        cli
 
        ret
 
 
pic_delay:
 
        jmp     pdl1
pdl1:   ret
 
 
sys_msg_board_str:
 
     pushad
   @@:
     cmp    [esi],byte 0
     je     @f
     mov    eax,1
     movzx  ebx,byte [esi]
     call   sys_msg_board
     inc    esi
     jmp    @b
   @@:
     popad
     ret
 
uglobal
  msg_board_data: times 4096 db 0
  msg_board_count dd 0x0
endg
 
sys_msg_board:
 
; eax=1 : write :  bl byte to write
; eax=2 :  read :  ebx=0 -> no data, ebx=1 -> data in al
 
     mov  ecx,[msg_board_count]
     cmp  eax, 1
     jne  smbl1
 
 
     mov  [msg_board_data+ecx],bl
     inc  ecx
     and  ecx, 4095
     mov  [msg_board_count], ecx
     mov  [check_idle_semaphore], 5
     ret
   smbl1:
 
     cmp   eax, 2
     jne   smbl2
     test  ecx, ecx
     jz    smbl21
;     mov   edi, msg_board_data
;     mov   esi, msg_board_data+1
;     movzx eax, byte [edi]
     mov   eax, msg_board_data+1
     mov   ebx, msg_board_data
     movzx edx, byte [ebx]
     call  memmove
;     push  ecx
;     shr   ecx, 2
;     cld
;     rep   movsd
;     pop   ecx
;     and   ecx, 3
;     rep   movsb
     dec   [msg_board_count]
     mov   [esp+36], edx ;eax
     mov   [esp+24], dword 1
     ret
   smbl21:
     mov   [esp+36], ecx
     mov   [esp+24], ecx
 
   smbl2:
     ret
 
 
 
sys_process_def:
        mov     edi, [CURRENT_TASK]
 
        dec     eax             ; 1 = set keyboard mode
     jne   no_set_keyboard_setup
 
     shl   edi,8
     mov   [edi+SLOT_BASE + APPDATA.keyboard_mode],bl
 
     ret
 
   no_set_keyboard_setup:
 
        dec     eax             ; 2 = get keyboard mode
     jne   no_get_keyboard_setup
 
     shl   edi,8
     movzx eax, byte [SLOT_BASE+edi + APPDATA.keyboard_mode]
 
     mov   [esp+36],eax
 
     ret
 
   no_get_keyboard_setup:
 
        dec     eax             ; 3 = get keyboard ctrl, alt, shift
     jne   no_get_keyboard_cas
 
;     xor   eax,eax
;     movzx eax,byte [shift]
;     movzx ebx,byte [ctrl]
;     shl   ebx,2
;     add   eax,ebx
;     movzx ebx,byte [alt]
;     shl   ebx,3
;     add   eax,ebx
 
 ;// mike.dld [
     mov   eax, [kb_state]
 ;// mike.dld ]
 
     mov   [esp+36],eax
 
     ret
 
   no_get_keyboard_cas:
 
        dec     eax
        jnz     no_add_keyboard_hotkey
 
        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+36], 1
        ret
.found_free:
        mov     [eax+8], edi
        mov     [eax+4], ecx
        movzx   ebx, bl
        lea     ebx, [hotkey_scancodes+ebx*4]
        mov     ecx, [ebx]
        mov     [eax], ecx
        mov     [ebx], eax
        mov     [eax+12], ebx
        jecxz   @f
        mov     [ecx+12], eax
@@:
        and     dword [esp+36], 0
        ret
 
no_add_keyboard_hotkey:
 
        dec     eax
        jnz     no_del_keyboard_hotkey
 
        movzx   ebx, bl
        lea     ebx, [hotkey_scancodes+ebx*4]
        mov     eax, [ebx]
.scan:
        test    eax, eax
        jz      .notfound
        cmp     [eax+8], edi
        jnz     .next
        cmp     [eax+4], ecx
        jz      .found
.next:
        mov     eax, [eax]
        jmp     .scan
.notfound:
        mov     dword [esp+36], 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+36], edx
        ret
 
no_del_keyboard_hotkey:
     ret
 
 
align 4
 
sys_gs:                         ; direct screen access
 
     cmp  eax,1                 ; resolution
     jne  no_gs1
     mov  eax,[ScreenWidth]
     shl  eax,16
     mov  ax,[ScreenHeight]
     add  eax,0x00010001
     mov  [esp+36],eax
     ret
   no_gs1:
 
     cmp   eax,2                ; bits per pixel
     jne   no_gs2
     movzx eax,byte [ScreenBPP]
     mov   [esp+36],eax
     ret
   no_gs2:
 
     cmp   eax,3                ; bytes per scanline
     jne   no_gs3
     mov   eax,[BytesPerScanLine]
     mov   [esp+36],eax
     ret
   no_gs3:
 
     mov  [esp+36],dword -1
     ret
 
 
align 4 ; PCI functions
 
sys_pci:
 
     call  pci_api
     mov   [esp+36],eax
     ret
 
 
align 4  ;  system functions
 
syscall_setpixel:                       ; SetPixel
 
 
     mov   edx,[TASK_BASE]
     add   eax,[edx-twdw+WDATA.box.left]
     add   ebx,[edx-twdw+WDATA.box.top]
        mov     edi,[CURRENT_TASK]
        shl     edi,8
        add     eax,[edi+SLOT_BASE+APPDATA.wnd_clientbox.left]
        add     ebx,[edi+SLOT_BASE+APPDATA.wnd_clientbox.top]
     xor   edi,edi ; no force
;     mov   edi,1
     call  [disable_mouse]
     jmp   [putpixel]
 
align 4
 
syscall_writetext:                      ; WriteText
 
     mov   edi,[TASK_BASE]
     mov   ebp,[edi-twdw+WDATA.box.left]
        push    esi
        mov     esi,[CURRENT_TASK]
        shl     esi,8
        add     ebp,[esi+SLOT_BASE+APPDATA.wnd_clientbox.left]
     shl   ebp,16
     add   ebp,[edi-twdw+WDATA.box.top]
        add     bp,word[esi+SLOT_BASE+APPDATA.wnd_clientbox.top]
        pop     esi
     add   ecx,[edi+TASKDATA.mem_start]
     add   eax,ebp
     xor   edi,edi
     jmp   dtext
 
align 4
 
syscall_openramdiskfile:                ; OpenRamdiskFile
 
 
     mov   edi,[TASK_BASE]
     add   edi,TASKDATA.mem_start
     add   eax,[edi]
     add   edx,[edi]
     mov   esi,12
     call  fileread
     mov   [esp+36],ebx
     ret
 
align 4
 
syscall_drawrect:                       ; DrawRect
 
     mov   edi,ecx
     and   edi,0x80FFFFFF
     test  ax,ax
     je    drectr
     test  bx,bx
     je    drectr
     movzx ecx,ax
     shr   eax,16
     movzx edx,bx
     shr   ebx,16
        mov     esi,[CURRENT_TASK]
        shl     esi,8
        add     eax,[esi+SLOT_BASE+APPDATA.wnd_clientbox.left]
        add     ebx,[esi+SLOT_BASE+APPDATA.wnd_clientbox.top]
     add   ecx,eax
     add   edx,ebx
     jmp   [drawbar]
    drectr:
     ret
 
align 4
 
syscall_getscreensize:                  ; GetScreenSize
 
     movzx eax,word[ScreenWidth]
     shl   eax,16
     mov   ax,[ScreenHeight]
     mov   [esp+36],eax
     ret
 
align 4
 
syscall_cdaudio:                        ; CD
 
     call  sys_cd_audio
     mov   [esp+36],eax
     ret
 
align 4
 
syscall_delramdiskfile:                 ; DelRamdiskFile
 
     mov   edi,[TASK_BASE]
     add   edi,TASKDATA.mem_start
     add   eax,[edi]
     call  filedelete
     mov   [esp+36],eax
     ret
 
align 4
 
syscall_writeramdiskfile:               ; WriteRamdiskFile
 
     mov   edi,[TASK_BASE]
     add   edi,TASKDATA.mem_start
     add   eax,[edi]
     add   ebx,[edi]
     call  filesave
     mov   [esp+36],eax
     ret
 
align 4
 
syscall_getpixel:                       ; GetPixel
     mov   ecx,[ScreenWidth]
     inc   ecx
     xor   edx,edx
     div   ecx
     mov   ebx,edx
     xchg  eax,ebx
     call  dword [GETPIXEL]
     mov   [esp+36],ecx
     ret
 
align 4
 
syscall_readstring:                     ; ReadString
 
     mov   edi,[TASK_BASE]
     add   edi,TASKDATA.mem_start
     add   eax,[edi]
     call  read_string
     mov   [esp+36],eax
     ret
 
align 4
 
syscall_drawline:                       ; DrawLine
 
     mov   edi,[TASK_BASE]
     movzx edx,word[edi-twdw+WDATA.box.left]
     mov   ebp,edx
        mov     esi,[CURRENT_TASK]
        shl     esi,8
        add     ebp,[esi+SLOT_BASE+APPDATA.wnd_clientbox.left]
        add     dx,word[esi+SLOT_BASE+APPDATA.wnd_clientbox.left]
     shl   edx,16
     add   ebp,edx
     movzx edx,word[edi-twdw+WDATA.box.top]
     add   eax,ebp
     mov   ebp,edx
        add     ebp,[esi+SLOT_BASE+APPDATA.wnd_clientbox.top]
        add     dx,word[esi+SLOT_BASE+APPDATA.wnd_clientbox.top]
     shl   edx,16
     xor   edi,edi
     add   edx,ebp
     add   ebx,edx
     jmp   [draw_line]
 
align 4
 
syscall_getirqowner:                    ; GetIrqOwner
     cmp   eax,16
     jae   .err
     shl   eax,2
     add   eax,irq_owner
     mov   eax,[eax]
     mov   [esp+36],eax
     ret
.err:
     or    dword [esp+36], -1
     ret
 
align 4
 
syscall_reserveportarea:                ; ReservePortArea and FreePortArea
 
     call  r_f_port_area
     mov   [esp+36],eax
     ret
 
align 4
 
syscall_threads:                        ; CreateThreads
 
     call  sys_threads
     mov   [esp+36],eax
     ret
 
align 4
 
stack_driver_stat:
 
     call  app_stack_handler            ; Stack status
 
;     mov   [check_idle_semaphore],5    ; enable these for zero delay
;     call  change_task                 ; between sent packet
 
     mov   [esp+36],eax
     ret
 
align 4
 
socket:                                 ; Socket interface
     call  app_socket_handler
 
;     mov   [check_idle_semaphore],5    ; enable these for zero delay
;     call  change_task                 ; between sent packet
 
     mov   [esp+36],eax
     mov   [esp+24],ebx
     ret
 
align 4
 
user_events:                            ; User event times
 
     mov   eax,0x12345678
     mov   [esp+36],eax
 
     ret
 
align 4
 
read_from_hd:                           ; Read from hd - fn not in use
 
     mov   edi,[TASK_BASE]
     add   edi,TASKDATA.mem_start
     add   eax,[edi]
     add   ecx,[edi]
     add   edx,[edi]
     call  file_read
 
     mov   [esp+36],eax
     mov   [esp+24],ebx
 
     ret
 
align 4
paleholder:
	ret
 
; --------------- APM ---------------------
apm_entry    dp    0
apm_vf        dd    0
align 4
sys_apm:
    cmp    word [apm_vf], 0    ; Check APM BIOS enable
    jne    @f
    or    [esp + 56], byte 1    ; error
    mov    [esp + 36], dword 8    ; 32-bit protected-mode interface not supported
    ret
 
@@:    xchg    eax, ecx
    xchg    ebx, ecx
 
    cmp    al, 3
    ja    @f
    and    [esp + 56], byte 0xfe    ; emulate func 0..3 as func 0
    mov    eax, [apm_vf]
    mov    [esp + 36], eax
    shr    eax, 16
    mov    [esp + 32], eax
    ret
 
@@:    call    pword [apm_entry]    ; call APM BIOS
    mov    [esp + 8 ], edi
    mov    [esp + 12], esi
    mov    [esp + 24], ebx
    mov    [esp + 28], edx
    mov    [esp + 32], ecx
    mov    [esp + 36], eax
    setc    al
    and    [esp + 56], byte 0xfe
    or    [esp + 56], al
    ret
; -----------------------------------------
 
align 4
 
undefined_syscall:                      ; Undefined system call
 
     mov   [esp+36],dword -1
     ret
 
align 4
system_shutdown:          ; shut down the system
 
           cmp byte [BOOT_VAR+0x9030], 1
           jne @F
           ret
@@:
           call stop_all_services
 
     push eax
     push edx
     mov edx, 0x400   ;bocsh
     mov al,0xff      ;bocsh
     out dx, al       ;bocsh
     pop edx
     pop eax
 
           push 3                ; stop playing cd
           pop  eax
           call sys_cd_audio
 
yes_shutdown_param:
           cli
 
           mov  eax, kernel_file ; load kernel.mnt to 0x8000:0
           push 12
           pop  esi
           xor  ebx,ebx
           or   ecx,-1
           mov  edx, OS_BASE+0x80000
           call fileread
 
           mov  esi, restart_kernel_4000+OS_BASE+0x10000 ; move kernel re-starter to 0x4000:0
           mov  edi,OS_BASE+0x40000
           mov  ecx,1000
           rep  movsb
 
           mov  esi,OS_BASE+0x2F0000    ; restore 0x0 - 0xffff
           mov  edi, OS_BASE
           mov  ecx,0x10000/4
           cld
           rep movsd
 
           call restorefatchain
 
           mov al, 0xFF
           out 0x21, al
           out 0xA1, al
 
           mov  word [OS_BASE+0x467+0],pr_mode_exit
           mov  word [OS_BASE+0x467+2],0x1000
 
           mov  al,0x0F
           out  0x70,al
           mov  al,0x05
           out  0x71,al
 
           mov  al,0xFE
           out  0x64,al
           hlt
 
 
include "data32.inc"
 
uglobals_size = $ - endofcode
diff16 "end of kernel code",0,$

Rev 393	Rev 394
1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
2	;;	2	;;
3	;; Kolibri OS - based on source code Menuet OS, but not 100% compatible.	3	;; Kolibri OS - based on source code Menuet OS, but not 100% compatible.
4	;;	4	;;
5	;; See file COPYING or GNU.TXT for details with these additional details:	5	;; See file COPYING or GNU.TXT for details with these additional details:
6	;; - All code written in 32 bit x86 assembly language	6	;; - All code written in 32 bit x86 assembly language
7	;; - No external code (eg. bios) at process execution time	7	;; - No external code (eg. bios) at process execution time
8	;;	8	;;
9	;;	9	;;
10	;; Compile with last version FASM	10	;; Compile with last version FASM
11	;;	11	;;
12	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	12	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
13	include "proc32.inc"	13	include "proc32.inc"
14	include "kglobals.inc"	14	include "kglobals.inc"
15	include "lang.inc"	15	include "lang.inc"
16		16
17	include "const.inc"	17	include "const.inc"
18	max_processes equ 255	18	max_processes equ 255
19	tss_step equ (128+8192) ; tss & i/o - 65535 ports, * 256=557056*4	19	tss_step equ (128+8192) ; tss & i/o - 65535 ports, * 256=557056*4
20		20
21		21
22	os_data equ os_data_l-gdts ; GDTs	22	os_data equ os_data_l-gdts ; GDTs
23	os_code equ os_code_l-gdts	23	os_code equ os_code_l-gdts
24	graph_data equ 3+graph_data_l-gdts	24	graph_data equ 3+graph_data_l-gdts
25	tss0 equ tss0_l-gdts	25	tss0 equ tss0_l-gdts
26	app_code equ 3+app_code_l-gdts	26	app_code equ 3+app_code_l-gdts
27	app_data equ 3+app_data_l-gdts	27	app_data equ 3+app_data_l-gdts
28		28
29		29
30	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	30	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
31	;;	31	;;
32	;; Included files:	32	;; Included files:
33	;;	33	;;
34	;; Kernel16.inc	34	;; Kernel16.inc
35	;; - Booteng.inc English text for bootup	35	;; - Booteng.inc English text for bootup
36	;; - Bootcode.inc Hardware setup	36	;; - Bootcode.inc Hardware setup
37	;; - Pci16.inc PCI functions	37	;; - Pci16.inc PCI functions
38	;;	38	;;
39	;; Kernel32.inc	39	;; Kernel32.inc
40	;; - Sys32.inc Process management	40	;; - Sys32.inc Process management
41	;; - Shutdown.inc Shutdown and restart	41	;; - Shutdown.inc Shutdown and restart
42	;; - Fat32.inc Read / write hd	42	;; - Fat32.inc Read / write hd
43	;; - Vesa12.inc Vesa 1.2 driver	43	;; - Vesa12.inc Vesa 1.2 driver
44	;; - Vesa20.inc Vesa 2.0 driver	44	;; - Vesa20.inc Vesa 2.0 driver
45	;; - Vga.inc VGA driver	45	;; - Vga.inc VGA driver
46	;; - Stack.inc Network interface	46	;; - Stack.inc Network interface
47	;; - Mouse.inc Mouse pointer	47	;; - Mouse.inc Mouse pointer
48	;; - Scincode.inc Window skinning	48	;; - Scincode.inc Window skinning
49	;; - Pci32.inc PCI functions	49	;; - Pci32.inc PCI functions
50	;;	50	;;
51	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	51	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
52		52
53		53
54	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	54	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
55	;; ;;	55	;; ;;
56	;; 16 BIT ENTRY FROM BOOTSECTOR ;;	56	;; 16 BIT ENTRY FROM BOOTSECTOR ;;
57	;; ;;	57	;; ;;
58	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	58	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
59		59
60	use16	60	use16
61	org 0x0	61	org 0x0
62	jmp start_of_code	62	jmp start_of_code
63		63
64	version db 'Kolibri OS version 0.6.5.0 ',13,10,13,10,0	64	version db 'Kolibri OS version 0.6.5.0 ',13,10,13,10,0
65		65
66	include "boot/preboot.inc"	66	include "boot/preboot.inc"
67		67
68	if lang eq en	68	if lang eq en
69	include "boot/booteng.inc" ; english system boot messages	69	include "boot/booteng.inc" ; english system boot messages
70	else if lang eq ru	70	else if lang eq ru
71	include "boot/bootru.inc" ; russian system boot messages	71	include "boot/bootru.inc" ; russian system boot messages
72	include "boot/ru.inc" ; Russian font	72	include "boot/ru.inc" ; Russian font
73	else if lang eq et	73	else if lang eq et
74	include "boot/bootet.inc" ; estonian system boot messages	74	include "boot/bootet.inc" ; estonian system boot messages
75	include "boot/et.inc" ; Estonian font	75	include "boot/et.inc" ; Estonian font
76	else	76	else
77	include "boot/bootge.inc" ; german system boot messages	77	include "boot/bootge.inc" ; german system boot messages
78	end if	78	end if
79		79
80	include "boot/bootcode.inc" ; 16 bit system boot code	80	include "boot/bootcode.inc" ; 16 bit system boot code
81	include "bus/pci/pci16.inc"	81	include "bus/pci/pci16.inc"
82		82
83	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	83	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
84	;; ;;	84	;; ;;
85	;; SWITCH TO 32 BIT PROTECTED MODE ;;	85	;; SWITCH TO 32 BIT PROTECTED MODE ;;
86	;; ;;	86	;; ;;
87	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	87	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
88		88
89		89
90	; CR0 Flags - Protected mode and Paging	90	; CR0 Flags - Protected mode and Paging
91		91
92	mov ecx, CR0_PE	92	mov ecx, CR0_PE
93		93
94	; Enabling 32 bit protected mode	94	; Enabling 32 bit protected mode
95		95
96	sidt [cs:old_ints_h]	96	sidt [cs:old_ints_h]
97		97
98	cli ; disable all irqs	98	cli ; disable all irqs
99	cld	99	cld
100	mov al,255 ; mask all irqs	100	mov al,255 ; mask all irqs
101	out 0xa1,al	101	out 0xa1,al
102	out 0x21,al	102	out 0x21,al
103	l.5: in al, 0x64 ; Enable A20	103	l.5: in al, 0x64 ; Enable A20
104	test al, 2	104	test al, 2
105	jnz l.5	105	jnz l.5
106	mov al, 0xD1	106	mov al, 0xD1
107	out 0x64, al	107	out 0x64, al
108	l.6: in al, 0x64	108	l.6: in al, 0x64
109	test al, 2	109	test al, 2
110	jnz l.6	110	jnz l.6
111	mov al, 0xDF	111	mov al, 0xDF
112	out 0x60, al	112	out 0x60, al
113	l.7: in al, 0x64	113	l.7: in al, 0x64
114	test al, 2	114	test al, 2
115	jnz l.7	115	jnz l.7
116	mov al, 0xFF	116	mov al, 0xFF
117	out 0x64, al	117	out 0x64, al
118		118
119	lgdt [cs:tmp_gdt] ; Load GDT	119	lgdt [cs:tmp_gdt] ; Load GDT
120	mov eax, cr0 ; protected mode	120	mov eax, cr0 ; protected mode
121	or eax, ecx	121	or eax, ecx
122	and eax, 10011111b 65536256 + 0xffffff ; caching enabled	122	and eax, 10011111b 65536256 + 0xffffff ; caching enabled
123	mov cr0, eax	123	mov cr0, eax
124	jmp pword os_code:B32 ; jmp to enable 32 bit mode	124	jmp pword os_code:B32 ; jmp to enable 32 bit mode
125		125
126	include "boot/shutdown.inc" ; shutdown or restart	126	include "boot/shutdown.inc" ; shutdown or restart
127		127
128	align 8	128	align 8
129	tmp_gdt:	129	tmp_gdt:
130		130
131	dw 23	131	dw 23
132	dd tmp_gdt+0x10000	132	dd tmp_gdt+0x10000
133	dw 0	133	dw 0
134		134
135	dw 0xffff	135	dw 0xffff
136	dw 0x0000	136	dw 0x0000
137	db 0x00	137	db 0x00
138	dw 11011111b *256 +10011010b	138	dw 11011111b *256 +10011010b
139	db 0x00	139	db 0x00
140		140
141	dw 0xffff	141	dw 0xffff
142	dw 0x0000	142	dw 0x0000
143	db 0x00	143	db 0x00
144	dw 11011111b *256 +10010010b	144	dw 11011111b *256 +10010010b
145	db 0x00	145	db 0x00
146		146
147	include "data16.inc"	147	include "data16.inc"
148		148
149	use32	149	use32
150	org $+0x10000	150	org $+0x10000
151		151
152	align 4	152	align 4
153	B32:	153	B32:
154	mov ax,os_data ; Selector for os	154	mov ax,os_data ; Selector for os
155	mov ds,ax	155	mov ds,ax
156	mov es,ax	156	mov es,ax
157	mov fs,ax	157	mov fs,ax
158	mov gs,ax	158	mov gs,ax
159	mov ss,ax	159	mov ss,ax
160	mov esp,0x3ec00 ; Set stack	160	mov esp,0x3ec00 ; Set stack
161		161
162	; CLEAR 0x280000 - HEAP_BASE	162	; CLEAR 0x280000 - HEAP_BASE
163		163
164	xor eax,eax	164	xor eax,eax
165	mov edi,0x280000	165	mov edi,0x280000
166	mov ecx,(HEAP_BASE-0x280000) / 4	166	mov ecx,(HEAP_BASE-OS_BASE-0x280000) / 4
167	cld	167	cld
168	rep stosd	168	rep stosd
169		169
170	mov edi,0x40000	170	mov edi,0x40000
171	mov ecx,(0x90000-0x40000)/4	171	mov ecx,(0x90000-0x40000)/4
172	rep stosd	172	rep stosd
173		173
174	; CLEAR KERNEL UNDEFINED GLOBALS	174	; CLEAR KERNEL UNDEFINED GLOBALS
175	mov edi, endofcode-OS_BASE	175	mov edi, endofcode-OS_BASE
176	mov ecx, (uglobals_size/4)+4	176	mov ecx, (uglobals_size/4)+4
177	rep stosd	177	rep stosd
178		178
179	; SAVE & CLEAR 0-0xffff	179	; SAVE & CLEAR 0-0xffff
180		180
181	xor esi, esi	181	xor esi, esi
182	mov edi,0x2F0000	182	mov edi,0x2F0000
183	mov ecx,0x10000 / 4	183	mov ecx,0x10000 / 4
184	rep movsd	184	rep movsd
185	xor edi, edi	185	xor edi, edi
186	mov ecx,0x10000 / 4	186	mov ecx,0x10000 / 4
187	rep stosd	187	rep stosd
188		188
189	call test_cpu	189	call test_cpu
190	bts [cpu_caps-OS_BASE], CAPS_TSC ;force use rdtsc	190	bts [cpu_caps-OS_BASE], CAPS_TSC ;force use rdtsc
191		191
192	; MEMORY MODEL	192	; MEMORY MODEL
193	call mem_test	193	call mem_test
194	call init_mem	194	call init_mem
195	call init_page_map	195	call init_page_map
196		196
197	; ENABLE PAGING	197	; ENABLE PAGING
198		198
199	mov eax, sys_pgdir-OS_BASE	199	mov eax, sys_pgdir-OS_BASE
200	mov cr3, eax	200	mov cr3, eax
201		201
202	mov eax,cr0	202	mov eax,cr0
203	or eax,CR0_PG	203	or eax,CR0_PG
204	mov cr0,eax	204	mov cr0,eax
-		205
205	lgdt [gdts]	206	lgdt [gdts]
206	jmp pword os_code:high_code	207	jmp pword os_code:high_code
207		208
208	__DEBUG__ fix 1	209	__DEBUG__ fix 1
209	__DEBUG_LEVEL__ fix 1	210	__DEBUG_LEVEL__ fix 1
210	include 'init.inc'	211	include 'init.inc'
211		212
212	org OS_BASE+$	213	org OS_BASE+$
213	include 'fdo.inc'	-
214		214
215	align 4	215	align 4
216	high_code:	216	high_code:
217	mov ax,os_data	217	mov ax,os_data
218	mov ds,ax	218	mov ds,ax
219	mov es,ax	219	mov es,ax
220	mov fs,ax	220	mov fs,ax
221	mov gs,ax	221	mov gs,ax
222	mov ss,ax	222	mov ss,ax
223	add esp, OS_BASE	223	add esp, OS_BASE
224		224
225	mov dword [sys_pgdir], 0	225	mov dword [sys_pgdir], 0
226	mov dword [sys_pgdir+4], 0	226	mov dword [sys_pgdir+4], 0
227	mov dword [sys_pgdir+8], 0	227	mov dword [sys_pgdir+8], 0
228	mov dword [sys_pgdir+12], 0	228	mov dword [sys_pgdir+12], 0
229		229
230	mov eax, sys_pgdir-OS_BASE	230	mov eax, sys_pgdir-OS_BASE
231	mov cr3, eax	231	mov cr3, eax
232		232
233	; SAVE REAL MODE VARIABLES	233	; SAVE REAL MODE VARIABLES
234	mov ax, [BOOT_VAR + 0x9031]	234	mov ax, [BOOT_VAR + 0x9031]
235	mov [IDEContrRegsBaseAddr], ax	235	mov [IDEContrRegsBaseAddr], ax
236	; --------------- APM ---------------------	236	; --------------- APM ---------------------
237	; mov eax, [BOOT_VAR + 0x9040] ; entry point	237	; mov eax, [BOOT_VAR + 0x9040] ; entry point
238	; mov dword[apm_entry], eax	238	; mov dword[apm_entry], eax
239	; mov word [apm_entry + 4], apm_code_32 - gdts	239	; mov word [apm_entry + 4], apm_code_32 - gdts
240		240
241	mov eax, [BOOT_VAR + 0x9044] ; version & flags	241	mov eax, [BOOT_VAR + 0x9044] ; version & flags
242	mov [apm_vf], eax	242	mov [apm_vf], eax
243	; -----------------------------------------	243	; -----------------------------------------
244	; movzx eax,byte [BOOT_VAR+0x9010] ; mouse port	244	; movzx eax,byte [BOOT_VAR+0x9010] ; mouse port
245	; mov [0xF604],byte 1 ;al	245	; mov [0xF604],byte 1 ;al
246	mov al, [BOOT_VAR+0x901F] ; DMA writing	246	mov al, [BOOT_VAR+0x901F] ; DMA writing
247	mov [allow_dma_write], al	247	mov [allow_dma_write], al
248	mov al,[BOOT_VAR+0x9000] ; bpp	248	mov al,[BOOT_VAR+0x9000] ; bpp
249	mov [ScreenBPP],al	249	mov [ScreenBPP],al
250	movzx eax,word [BOOT_VAR+0x900A] ; X max	250	movzx eax,word [BOOT_VAR+0x900A] ; X max
251	dec eax	251	dec eax
252	mov [ScreenWidth],eax	252	mov [ScreenWidth],eax
253	mov [screen_workarea.right],eax	253	mov [screen_workarea.right],eax
254	movzx eax,word [BOOT_VAR+0x900C] ; Y max	254	movzx eax,word [BOOT_VAR+0x900C] ; Y max
255	dec eax	255	dec eax
256	mov [ScreenHeight],eax	256	mov [ScreenHeight],eax
257	mov [screen_workarea.bottom],eax	257	mov [screen_workarea.bottom],eax
258	movzx eax,word [BOOT_VAR+0x9008] ; screen mode	258	movzx eax,word [BOOT_VAR+0x9008] ; screen mode
259	mov [SCR_MODE],eax	259	mov [SCR_MODE],eax
260	mov eax,[BOOT_VAR+0x9014] ; Vesa 1.2 bnk sw add	260	mov eax,[BOOT_VAR+0x9014] ; Vesa 1.2 bnk sw add
261	mov [BANK_SWITCH],eax	261	mov [BANK_SWITCH],eax
262	mov [BytesPerScanLine],word 640*4 ; Bytes PerScanLine	262	mov [BytesPerScanLine],word 640*4 ; Bytes PerScanLine
263	cmp [SCR_MODE],word 0x13 ; 320x200	263	cmp [SCR_MODE],word 0x13 ; 320x200
264	je @f	264	je @f
265	cmp [SCR_MODE],word 0x12 ; VGA 640x480	265	cmp [SCR_MODE],word 0x12 ; VGA 640x480
266	je @f	266	je @f
267	mov ax,[BOOT_VAR+0x9001] ; for other modes	267	mov ax,[BOOT_VAR+0x9001] ; for other modes
268	mov [BytesPerScanLine],ax	268	mov [BytesPerScanLine],ax
269	@@:	269	@@:
270		270
271	; GRAPHICS ADDRESSES	271	; GRAPHICS ADDRESSES
272		272
273	mov byte [BOOT_VAR+0x901e],0x0	273	mov byte [BOOT_VAR+0x901e],0x0
274	mov eax,[BOOT_VAR+0x9018]	274	mov eax,[BOOT_VAR+0x9018]
275	mov [LFBAddress],eax	275	mov [LFBAddress],eax
276		276
277	cmp [SCR_MODE],word 0100000000000000b	277	cmp [SCR_MODE],word 0100000000000000b
278	jge setvesa20	278	jge setvesa20
279	cmp [SCR_MODE],word 0x13	279	cmp [SCR_MODE],word 0x13
280	je v20ga32	280	je v20ga32
281	mov [PUTPIXEL],dword Vesa12_putpixel24 ; Vesa 1.2	281	mov [PUTPIXEL],dword Vesa12_putpixel24 ; Vesa 1.2
282	mov [GETPIXEL],dword Vesa12_getpixel24	282	mov [GETPIXEL],dword Vesa12_getpixel24
283	cmp [ScreenBPP],byte 24	283	cmp [ScreenBPP],byte 24
284	jz ga24	284	jz ga24
285	mov [PUTPIXEL],dword Vesa12_putpixel32	285	mov [PUTPIXEL],dword Vesa12_putpixel32
286	mov [GETPIXEL],dword Vesa12_getpixel32	286	mov [GETPIXEL],dword Vesa12_getpixel32
287	ga24:	287	ga24:
288	jmp v20ga24	288	jmp v20ga24
289	setvesa20:	289	setvesa20:
290	mov [PUTPIXEL],dword Vesa20_putpixel24 ; Vesa 2.0	290	mov [PUTPIXEL],dword Vesa20_putpixel24 ; Vesa 2.0
291	mov [GETPIXEL],dword Vesa20_getpixel24	291	mov [GETPIXEL],dword Vesa20_getpixel24
292	cmp [ScreenBPP],byte 24	292	cmp [ScreenBPP],byte 24
293	jz v20ga24	293	jz v20ga24
294	v20ga32:	294	v20ga32:
295	mov [PUTPIXEL],dword Vesa20_putpixel32	295	mov [PUTPIXEL],dword Vesa20_putpixel32
296	mov [GETPIXEL],dword Vesa20_getpixel32	296	mov [GETPIXEL],dword Vesa20_getpixel32
297	v20ga24:	297	v20ga24:
298	cmp [SCR_MODE],word 0x12 ; 16 C VGA 640x480	298	cmp [SCR_MODE],word 0x12 ; 16 C VGA 640x480
299	jne no_mode_0x12	299	jne no_mode_0x12
300	mov [PUTPIXEL],dword VGA_putpixel	300	mov [PUTPIXEL],dword VGA_putpixel
301	mov [GETPIXEL],dword Vesa20_getpixel32	301	mov [GETPIXEL],dword Vesa20_getpixel32
302	no_mode_0x12:	302	no_mode_0x12:
303		303
304	; -------- Fast System Call init ----------	304	; -------- Fast System Call init ----------
305	; Intel SYSENTER/SYSEXIT (AMD CPU support it too)	305	; Intel SYSENTER/SYSEXIT (AMD CPU support it too)
306	bt [cpu_caps], CAPS_SEP	306	bt [cpu_caps], CAPS_SEP
307	jnc .SEnP ; SysEnter not Present	307	jnc .SEnP ; SysEnter not Present
308	xor edx, edx	308	xor edx, edx
309	mov ecx, MSR_SYSENTER_CS	309	mov ecx, MSR_SYSENTER_CS
310	mov eax, os_code	310	mov eax, os_code
311	wrmsr	311	wrmsr
312	mov ecx, MSR_SYSENTER_ESP	312	mov ecx, MSR_SYSENTER_ESP
313	mov eax, sysenter_stack ; Check it	313	mov eax, sysenter_stack ; Check it
314	wrmsr	314	wrmsr
315	mov ecx, MSR_SYSENTER_EIP	315	mov ecx, MSR_SYSENTER_EIP
316	mov eax, sysenter_entry	316	mov eax, sysenter_entry
317	wrmsr	317	wrmsr
318	.SEnP:	318	.SEnP:
319	; AMD SYSCALL/SYSRET	319	; AMD SYSCALL/SYSRET
320	cmp byte[cpu_vendor], 'A'	320	cmp byte[cpu_vendor], 'A'
321	jne .noSYSCALL	321	jne .noSYSCALL
322	mov eax, 0x80000001	322	mov eax, 0x80000001
323	cpuid	323	cpuid
324	test edx, 0x800 ; bit_11 - SYSCALL/SYSRET support	324	test edx, 0x800 ; bit_11 - SYSCALL/SYSRET support
325	jz .noSYSCALL	325	jz .noSYSCALL
326	mov ecx, MSR_AMD_EFER	326	mov ecx, MSR_AMD_EFER
327	rdmsr	327	rdmsr
328	or eax, 1 ; bit_0 - System Call Extension (SCE)	328	or eax, 1 ; bit_0 - System Call Extension (SCE)
329	wrmsr	329	wrmsr
330		330
331	; !!!! It`s dirty hack, fix it !!!	331	; !!!! It`s dirty hack, fix it !!!
332	; Bits of EDX :	332	; Bits of EDX :
333	; Bit 3116 During the SYSRET instruction, this field is copied into the CS register	333	; Bit 3116 During the SYSRET instruction, this field is copied into the CS register
334	; and the contents of this field, plus 8, are copied into the SS register.	334	; and the contents of this field, plus 8, are copied into the SS register.
335	; Bit 150 During the SYSCALL instruction, this field is copied into the CS register	335	; Bit 150 During the SYSCALL instruction, this field is copied into the CS register
336	; and the contents of this field, plus 8, are copied into the SS register.	336	; and the contents of this field, plus 8, are copied into the SS register.
337		337
338	; mov edx, (os_code + 16) * 65536 + os_code	338	; mov edx, (os_code + 16) * 65536 + os_code
339	mov edx, 0x1B0013	339	mov edx, 0x1B0013
340		340
341	mov eax, syscall_entry	341	mov eax, syscall_entry
342	mov ecx, MSR_AMD_STAR	342	mov ecx, MSR_AMD_STAR
343	wrmsr	343	wrmsr
344	.noSYSCALL:	344	.noSYSCALL:
345	; -----------------------------------------	345	; -----------------------------------------
346		346
347	call init_kernel_heap	347	call init_kernel_heap
348	stdcall kernel_alloc, 0x2000	348	stdcall kernel_alloc, 0x2000
349	mov [os_stack], eax	349	mov [os_stack], eax
350		350
351	mov [LFBSize], 0x800000	351	mov [LFBSize], 0x800000
352	call init_mtrr	352	call init_mtrr
353		353
354	call init_LFB	354	call init_LFB
355	call init_fpu	355	call init_fpu
356		-
357	call init_malloc	356	call init_malloc
358		357
359	stdcall alloc_kernel_space, 0x4F000	358	stdcall alloc_kernel_space, 0x4F000
360	mov [ipc_tmp], eax	359	mov [ipc_tmp], eax
361	mov ebx, 0x1000	360	mov ebx, 0x1000
362		361
363	add eax, 0x40000	362	add eax, 0x40000
364	mov [proc_mem_map], eax	363	mov [proc_mem_map], eax
365		364
366	add eax, 0x8000	365	add eax, 0x8000
367	mov [proc_mem_pdir], eax	366	mov [proc_mem_pdir], eax
368		367
369	add eax, ebx	368	add eax, ebx
370	mov [proc_mem_tab], eax	369	mov [proc_mem_tab], eax
371		370
372	add eax, ebx	371	add eax, ebx
373	mov [tmp_task_pdir], eax	372	mov [tmp_task_pdir], eax
374		373
375	add eax, ebx	374	add eax, ebx
376	mov [tmp_task_ptab], eax	375	mov [tmp_task_ptab], eax
377		376
378	add eax, ebx	377	add eax, ebx
379	mov [ipc_pdir], eax	378	mov [ipc_pdir], eax
380		379
381	add eax, ebx	380	add eax, ebx
382	mov [ipc_ptab], eax	381	mov [ipc_ptab], eax
383		382
384	call init_events	383	call init_events
385		-
386	mov eax, srv.fd-SRV_FD_OFFSET	384	mov eax, srv.fd-SRV_FD_OFFSET
387	mov [srv.fd], eax	385	mov [srv.fd], eax
388	mov [srv.bk], eax	386	mov [srv.bk], eax
389		387
390	mov edi, irq_tab	388	mov edi, irq_tab
391	xor eax, eax	389	xor eax, eax
392	mov ecx, 16	390	mov ecx, 16
393	rep stosd	391	rep stosd
394		392
395	;Set base of graphic segment to linear address of LFB	393	;Set base of graphic segment to linear address of LFB
396	mov eax,[LFBAddress] ; set for gs	394	mov eax,[LFBAddress] ; set for gs
397	mov [graph_data_l+2],ax	395	mov [graph_data_l+2],ax
398	shr eax,16	396	shr eax,16
399	mov [graph_data_l+4],al	397	mov [graph_data_l+4],al
400	mov [graph_data_l+7],ah	398	mov [graph_data_l+7],ah
401		399
402	;!!!!!!!!!!!!!!!!!!!!!!!!!!	400	;!!!!!!!!!!!!!!!!!!!!!!!!!!
403	include 'detect/disks.inc'	401	include 'detect/disks.inc'
404	;!!!!!!!!!!!!!!!!!!!!!!!!!!	402	;!!!!!!!!!!!!!!!!!!!!!!!!!!
405		403
406	; READ RAMDISK IMAGE FROM HD	404	; READ RAMDISK IMAGE FROM HD
407		405
408	;!!!!!!!!!!!!!!!!!!!!!!!	406	;!!!!!!!!!!!!!!!!!!!!!!!
409	include 'boot/rdload.inc'	407	include 'boot/rdload.inc'
410	;!!!!!!!!!!!!!!!!!!!!!!!	408	;!!!!!!!!!!!!!!!!!!!!!!!
411	; mov [dma_hdd],1	409	; mov [dma_hdd],1
412	; CALCULATE FAT CHAIN FOR RAMDISK	410	; CALCULATE FAT CHAIN FOR RAMDISK
413		411
414	call calculatefatchain	412	call calculatefatchain
415		413
416	; LOAD VMODE DRIVER	414	; LOAD VMODE DRIVER
417		415
418	;!!!!!!!!!!!!!!!!!!!!!!!	416	;!!!!!!!!!!!!!!!!!!!!!!!
419	include 'vmodeld.inc'	417	include 'vmodeld.inc'
420	;!!!!!!!!!!!!!!!!!!!!!!!	418	;!!!!!!!!!!!!!!!!!!!!!!!
421		419
422	; LOAD FONTS I and II	420	; LOAD FONTS I and II
423		421
424	mov [CURRENT_TASK],dword 1	422	mov [CURRENT_TASK],dword 1
425	mov [TASK_COUNT],dword 1	423	mov [TASK_COUNT],dword 1
426	mov [TASK_BASE],dword TASK_DATA	424	mov [TASK_BASE],dword TASK_DATA
427		425
428	mov esi,char	426	mov esi,char
429	xor ebx,ebx	427	xor ebx,ebx
430	mov ecx,2560	428	mov ecx,2560
431	mov edx,FONT_I	429	mov edx,FONT_I
432	call fs_RamdiskRead	430	call fs_RamdiskRead
433		431
434	mov esi,char2	432	mov esi,char2
435	xor ebx,ebx	433	xor ebx,ebx
436	mov ecx,2560;26000	434	mov ecx,2560;26000
437	mov edx,FONT_II	435	mov edx,FONT_II
438	call fs_RamdiskRead	436	call fs_RamdiskRead
439		437
440	mov esi,boot_fonts	438	mov esi,boot_fonts
441	call boot_log	439	call boot_log
442		440
443	; PRINT AMOUNT OF MEMORY	441	; PRINT AMOUNT OF MEMORY
444	mov esi, boot_memdetect	442	mov esi, boot_memdetect
445	call boot_log	443	call boot_log
446		444
447	movzx ecx, word [boot_y]	445	movzx ecx, word [boot_y]
448	or ecx, (10+29*6) shl 16 ; "Determining amount of memory"	446	or ecx, (10+29*6) shl 16 ; "Determining amount of memory"
449	sub ecx, 10	447	sub ecx, 10
450	mov edx, 0xFFFFFF	448	mov edx, 0xFFFFFF
451	mov ebx, [MEM_AMOUNT]	449	mov ebx, [MEM_AMOUNT]
452	shr ebx, 20	450	shr ebx, 20
453	mov edi, 1	451	mov edi, 1
454	mov eax, 0x00040000	452	mov eax, 0x00040000
455	call display_number_force	453	call display_number_force
456		454
457	; REDIRECT ALL IRQ'S TO INT'S 0x20-0x2f	455	; REDIRECT ALL IRQ'S TO INT'S 0x20-0x2f
458		456
459	mov esi,boot_irqs	457	mov esi,boot_irqs
460	call boot_log	458	call boot_log
461	call rerouteirqs	459	call rerouteirqs
462		460
463	mov esi,boot_tss	461	mov esi,boot_tss
464	call boot_log	462	call boot_log
465		463
466	; BUILD SCHEDULER	464	; BUILD SCHEDULER
467		465
468	call build_scheduler ; sys32.inc	466	call build_scheduler ; sys32.inc
469		467
470	; LOAD IDT	468	; LOAD IDT
471	lidt [idtreg]	469	lidt [idtreg]
472		470
473	mov esi,boot_devices	471	mov esi,boot_devices
474	call boot_log	472	call boot_log
475	call detect_devices	473	call detect_devices
476		474
477	; TIMER SET TO 1/100 S	475	; TIMER SET TO 1/100 S
478		476
479	mov esi,boot_timer	477	mov esi,boot_timer
480	call boot_log	478	call boot_log
481	mov al,0x34 ; set to 100Hz	479	mov al,0x34 ; set to 100Hz
482	out 0x43,al	480	out 0x43,al
483	mov al,0x9b ; lsb 1193180 / 1193	481	mov al,0x9b ; lsb 1193180 / 1193
484	out 0x40,al	482	out 0x40,al
485	mov al,0x2e ; msb	483	mov al,0x2e ; msb
486	out 0x40,al	484	out 0x40,al
487		485
488	; SET MOUSE	486	; SET MOUSE
489		487
490	mov esi,boot_setmouse	488	mov esi,boot_setmouse
491	call boot_log	489	call boot_log
492	call setmouse	490	call setmouse
493		491
494	mov [pci_access_enabled],1	492	mov [pci_access_enabled],1
495		493
496	; SET PRELIMINARY WINDOW STACK AND POSITIONS	494	; SET PRELIMINARY WINDOW STACK AND POSITIONS
497		495
498	mov esi,boot_windefs	496	mov esi,boot_windefs
499	call boot_log	497	call boot_log

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(root)/kernel/branches/flat_kernel/kernel.asm @ 420 – Rev 393 → 394