WebSVN – Kolibri OS – Diff – /kernel/trunk/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 "kglobals.inc"
include "lang.inc"
 
WinMapAddress           equ     0x460000
display_data       = 0x460000
 
max_processes      equ   255
 
window_data        equ   0x0000
tss_data           equ   0xD20000
;tss_step           equ   (128+2048) ; tss & i/o - 16384 ports, * 256=557056
tss_step           equ   (128+8192) ; tss & i/o - 65535 ports, * 256=557056*4
draw_data          equ   0xC00000
sysint_stack_data  equ   0xC03000
 
 
twdw               equ   (0x3000-window_data)
 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;;   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
 
; mike.dld {
        org $+0x10000
db 0
dd servetable-0x10000
draw_line       dd __sys_draw_line
disable_mouse   dd __sys_disable_mouse
draw_pointer    dd __sys_draw_pointer
;//mike.dld, 2006-08-02 [
;drawbar         dd __sys_drawbar
drawbar         dd __sys_drawbar.forced
;//mike.dld, 2006-08-02 ]
putpixel        dd __sys_putpixel
; } mike.dld
 
version           db    'Kolibri OS  version 0.6.0.0      ',13,10,13,10,0
                  ;dd    endofcode-0x10000
 
                  ;db   'Boot02'
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
include "boot/preboot.inc"
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
preboot_lfb       db    0
preboot_bootlog   db    0
 
 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;                                                                      ;;
;;                      16 BIT INCLUDED FILES                           ;;
;;                                                                      ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
include "kernel16.inc"
 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;                                                                      ;;
;;                  SWITCH TO 32 BIT PROTECTED MODE                     ;;
;;                                                                      ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
os_data        =  os_data_l-gdts    ; GDTs
os_code        =  os_code_l-gdts
int_code       equ  int_code_l-gdts
int_data       equ  int_data_l-gdts
tss0sys        equ  tss0sys_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
 
 
 
; CR0 Flags - Protected mode and Paging
 
        mov     ecx,0x00000001
        ;and     ebx,65535
        ;cmp     ebx,00100000000000000b ; lfb -> paging
        ;jb      no_paging
        ;mov     ax,0x0000
        ;mov     es,ax
        ;mov     al,[es:0x901E]
        ;cmp     al,1
        ;je      no_paging
        ;or      ecx, 0x80000000
       ;no_paging:
 
; Enabling 32 bit protected mode
 
        sidt    [cs:old_ints_h-0x10000]
 
        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:gdts-0x10000]       ; Load GDT
        mov     eax, cr0                ; Turn on paging // protected mode
        or      eax, ecx
        and     eax, 10011111b *65536*256 + 0xffffff ; caching enabled
        mov     cr0, eax
        jmp     $+2
org $+0x10000        
        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
        jmp     pword os_code:B32       ; jmp to enable 32 bit mode
 
use32
 
iglobal
  boot_memdetect    db   'Determining amount of memory',0
  boot_fonts        db   'Fonts loaded',0
  boot_tss          db   'Setting TSSs',0
  boot_cpuid        db   'Reading CPUIDs',0
  boot_devices      db   'Detecting devices',0
  boot_timer        db   'Setting timer',0
  boot_irqs         db   'Reprogramming IRQs',0
  boot_setmouse     db   'Setting mouse',0
  boot_windefs      db   'Setting window defaults',0
  boot_bgr          db   'Calculating background',0
  boot_resirqports  db   'Reserving IRQs & ports',0
  boot_setrports    db   'Setting addresses for IRQs',0
  boot_setostask    db   'Setting OS task',0
  boot_allirqs      db   'Unmasking all IRQs',0
  boot_tsc          db   'Reading TSC',0
  boot_pal_ega      db   'Setting EGA/CGA 320x200 palette',0
  boot_pal_vga      db   'Setting VGA 640x480 palette',0
  boot_mtrr         db   'Setting MTRR',0
  boot_tasking      db   'All set - press ESC to start',0
endg
 
iglobal
  boot_y dd 10
endg
 
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],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
 
uglobal
  cpuid_0    dd  0,0,0,0
  cpuid_1    dd  0,0,0,0
  cpuid_2    dd  0,0,0,0
  cpuid_3    dd  0,0,0,0
endg
 
iglobal
  firstapp   db  '/rd/1/LAUNCHER',0
  char       db  'CHAR    MT '
  char2      db  'CHAR2   MT '
  bootpath   db  '/KOLIBRI    '
  bootpath2  db  0
  vmode      db  'VMODE   MDR'
  vrr_m      db  '/rd/1/VRR_M',0
endg
 
 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;                                                                      ;;
;;                          32 BIT ENTRY                                ;;
;;                                                                      ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
align 4
 
B32:
; CLEAR 0x280000-0xF00000
 
        xor   eax,eax
        mov   edi,0x280000
        mov   ecx,(0x100000*0xF-0x280000) / 4
        cld
        rep   stosd
; CLEAR 0x80000-0x90000
;       xor   eax,eax
        mov   edi,0x80000
        mov   ecx,(0x90000-0x80000)/4
;       cld
        rep   stosd
 
; CLEAR KERNEL UNDEFINED GLOBALS
        mov   edi, endofcode
        mov   ecx, (uglobals_size/4)+4
        rep   stosd
 
; SAVE & CLEAR 0-0xffff
 
        mov   esi,0x0000
        mov   edi,0x2F0000
        mov   ecx,0x10000 / 4
        cld
        rep   movsd
        xor   eax,eax
        mov   edi,0
        mov   ecx,0x10000 / 4
        cld
        rep   stosd
 
; SAVE REAL MODE VARIABLES
; --------------- APM ---------------------
    mov    eax, [0x2f0000 + 0x9040]    ; entry point
    mov    dword[apm_entry], eax
    mov    word [apm_entry + 4], apm_code_32 - gdts
 
    mov    eax, [0x2f0000 + 0x9044]    ; version & flags
    mov    [apm_vf], eax
; -----------------------------------------
;        movzx eax,byte [0x2f0000+0x9010]  ; mouse port
;        mov   [0xF604],byte 1  ;al
        mov   al,[0x2f0000+0x9000]        ; bpp
        mov   [0xFBF1],al
        movzx eax,word [0x2f0000+0x900A]  ; X max
        dec   eax
        mov   [0xfe00],eax
        mov   [screen_workarea.right],eax
        movzx eax,word [0x2f0000+0x900C]  ; Y max
        dec   eax
        mov   [0xfe04],eax
        mov   [screen_workarea.bottom],eax
        movzx eax,word [0x2f0000+0x9008]  ; screen mode
        mov   [0xFE0C],eax
        mov   eax,[0x2f0000+0x9014]       ; Vesa 1.2 bnk sw add
        mov   [0xE030],eax
        mov   [0xfe08],word 640*4         ; Bytes PerScanLine
        cmp   [0xFE0C],word 0x13          ; 320x200
        je    @f
        cmp   [0xFE0C],word 0x12          ; VGA 640x480
        je    @f
        mov   ax,[0x2f0000+0x9001]        ; for other modes
        mov   [0xfe08],ax
      @@:
 
; GRAPHICS ADDRESSES
 
        ;mov     eax,0x100000*8                    ; LFB address
        ;cmp     [0xfe0c],word 0x13
        ;je      no_d_lfb
        ;cmp     [0xfe0c],word 0x12
        ;je      no_d_lfb
        ;cmp     [0x2f0000+0x901e],byte 1
        ;jne     no_d_lfb
        mov     byte [0x2f0000+0x901e],0x0
        mov     eax,[0x2f0000+0x9018]
      ;no_d_lfb:
        mov     [0xfe80],eax
 
        cmp     [0xfe0c],word 0100000000000000b
        jge     setvesa20
        cmp     [0xfe0c],word 0x13
        je      v20ga32
        mov     [0xe020],dword Vesa12_putpixel24  ; Vesa 1.2
        mov     [0xe024],dword Vesa12_getpixel24
        cmp     [0xfbf1],byte 24
        jz      ga24
        mov     [0xe020],dword Vesa12_putpixel32
        mov     [0xe024],dword Vesa12_getpixel32
      ga24:
        jmp     v20ga24
      setvesa20:
        mov     [0xe020],dword Vesa20_putpixel24  ; Vesa 2.0
        mov     [0xe024],dword Vesa20_getpixel24
        cmp     [0xfbf1],byte 24
        jz      v20ga24
      v20ga32:
        mov     [0xe020],dword Vesa20_putpixel32
        mov     [0xe024],dword Vesa20_getpixel32
      v20ga24:
        cmp     [0xfe0c],word 0x12                ; 16 C VGA 640x480
        jne     no_mode_0x12
        mov     [0xe020],dword VGA_putpixel
        mov     [0xe024],dword Vesa20_getpixel32
      no_mode_0x12:
 
; MEMORY MODEL
 
;        mov     [0xfe84],dword 0x100000*16        ; apps mem base address
;        movzx   ecx,byte [0x2f0000+0x9030]
;        dec     ecx
;        mov     eax,16*0x100000 ; memory-16
;        shl     eax,cl
;        mov     [0xfe8c],eax      ; memory for use
;        cmp     eax,16*0x100000
;        jne     no16mb
;        mov     [0xfe84],dword 0xD80000 ; !!! 10 !!!
;      no16mb:
 
; init:
;  1) 0xFE84 - applications base
;  2) 0xFE8C - total amount of memory
 
        xor     edi, edi
  m_GMS_loop:
        add     edi, 0x400000
        mov     eax, dword [edi]
        mov     dword [edi], 'TEST'
        wbinvd
        cmp     dword [edi], 'TEST'
        jne     m_GMS_exit
        cmp     dword [0], 'TEST'
        je      m_GMS_exit
        mov     dword [es:edi], eax
        jmp     m_GMS_loop
  m_GMS_exit:
        mov     [edi], eax
        ; now edi contains the EXACT amount of memory
 
        mov     eax, 0x100000*16
        cmp     edi, eax ;0x100000*16
        jb      $                 ; less than 16 Mb
 
        mov     dword [0xFE84], eax ;0x100000*16
        cmp     edi, eax ;0x100000*16
        jne     @f
        mov     dword [0xFE84], 0xD80000 ; =0x100000*13.5
      @@:
        mov     dword [0xFE8C], edi
 
;!!!!!!!!!!!!!!!!!!!!!!!!!!
include 'detect/disks.inc'
;!!!!!!!!!!!!!!!!!!!!!!!!!!
 
; CHECK EXTRA REGION
; ENABLE PAGING
        mov     eax,cr0
        or      eax,0x80000000
        mov     cr0,eax
        jmp     $+2
        
        call    MEM_Init
;add 0x800000-0xc00000 area
        cmp     word [0xfe0c],0x13
        jle     .less_memory
        mov     eax,0x800000      ;linear address
        mov     ebx,0x400000 shr 12 ;size in pages (4Mb)
        mov     ecx,0x800000        ;physical address
        jmp     .end_first_block
.less_memory:
        mov     eax,0x980000      ;linear address
        mov     ebx,0x280000 shr 12 ;size in pages (2.5Mb)
        mov     ecx,0x980000        ;physical address
.end_first_block:
        call    MEM_Add_Heap        ;nobody can lock mutex yet
 
        call    create_general_page_table
;add 0x1000000(0xd80000)-end_of_memory area
        mov     eax,second_base_address
        mov     ebx,[0xfe8c]
        mov     ecx,[0xfe84]
        sub     ebx,ecx
        shr     ebx,12
        add     eax,ecx
        call    MEM_Add_Heap
;init physical memory manager.
        call    Init_Physical_Memory_Manager        
        
        mov     dword [0xfe80],0x80000000 ;0x800000
 
;Set base of graphic segment to linear address of LFB
        mov     eax,[0xfe80]                      ; set for gs
        mov     [graph_data_l+2],ax
        shr     eax,16
        mov     [graph_data_l+4],al
        mov     [graph_data_l+7],ah
 
; 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   [0x3000],dword 1
        mov   [0x3004],dword 1
        mov   [0x3010],dword 0x3020
 
        mov   eax,char
        mov   esi,12
        xor   ebx,ebx
        mov   ecx,2560;26000
        mov   edx,0x3F600;0x37000
        call  fileread
 
        mov   eax,char2
        mov   esi,12
        xor   ebx,ebx
        mov   ecx,2560;26000
        mov   edx,0x3EC00;0x30000
        call  fileread
 
        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, [0xFE8C]
        shr     ebx, 20
        mov     edi, 1
        mov     eax, 0x00040000
        call    display_number
 
; CHECK EXTENDED REGION
;        mov     dword [0x80000000],0x12345678
;        cmp     dword [0x80000000],0x12345678
;        jz      extended_region_found
;        mov     esi,boot_ext_region
;        call    boot_log
;        jmp     $
;extended_region_found:
 
 
 
; 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   [cs:idtreg]
 
; READ CPUID RESULT
 
        mov     esi,boot_cpuid
        call    boot_log
        pushfd                  ; get current flags
        pop     eax
        mov     ecx,eax
        xor     eax,0x00200000  ; attempt to toggle ID bit
        push    eax
        popfd
        pushfd                  ; get new EFLAGS
        pop     eax
        push    ecx             ; restore original flags
        popfd
        and     eax,0x00200000  ; if we couldn't toggle ID,
        and     ecx,0x00200000  ; then this is i486
        cmp     eax,ecx
        jz      nopentium
        ; It's Pentium or later. Use CPUID
        mov     edi,cpuid_0
        mov     esi,0
      cpuid_new_read:
        mov     eax,esi
        cpuid
        call    cpuid_save
        add     edi,4*4
        cmp     esi,3
        jge     cpuid_done
        cmp     esi,[cpuid_0]
        jge     cpuid_done
        inc     esi
        jmp     cpuid_new_read
      cpuid_save:
        mov     [edi+00],eax
        mov     [edi+04],ebx
        mov     [edi+8],ecx
        mov     [edi+12],edx
        ret
      cpuid_done:
      nopentium:
 
; CR4 flags - enable fxsave / fxrstore
;
;        finit
;        mov     eax,1
;        cpuid
;        test    edx,1000000h
;        jz      fail_fpu
;        mov     eax,cr4
;        or      eax,200h        ; Enable fxsave/fxstor
;        mov     cr4,eax
;     fail_fpu:
 
;The CPU to this moment should be already in PM,
;and bit MP of the register cr0 should be installed in 1.
finit ;reset of the FPU (finit, instead of fninit)
fsetpm ;enable PM of the FPU
finit ;reset the registers, contents which are still equal RM
;Now FPU too in PM
; DETECT DEVICES
 
        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
 
; 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
        ; name for OS/IDLE process
        mov  dword [0x80000+256+APPDATA.app_name],   dword 'OS/I'
        mov  dword [0x80000+256+APPDATA.app_name+4], dword 'DLE '
        ; task list
        mov  [0x3020+TASKDATA.wnd_number], 1 ; on screen number
        mov  [0x3020+TASKDATA.pid], 1        ; process id number
        mov  [0x3020+TASKDATA.mem_start], 0  ; process base address
 
        ; set default flags & stacks
        mov  [l.eflags],dword 0x11202 ; sti and resume
        mov  [l.ss0], os_data
        ; osloop - TSS
        mov  eax,cr3
        mov  [l.cr3],eax
        mov  [l.eip],osloop
        mov  [l.esp],sysint_stack_data + 4096*2 ; uses slot 1 stack
        mov  [l.cs],os_code
        mov  [l.ss],os_data
        mov  [l.ds],os_data
        mov  [l.es],os_data
        mov  [l.fs],os_data
        mov  [l.gs],os_data
        ; move tss to tss_data+tss_step
        mov  esi,tss_sceleton
        mov  edi,tss_data+tss_step
        mov  ecx,120/4
        cld
        rep  movsd
 
        mov  ax,tss0
        ltr  ax
 
 
; 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   [0xf600],eax          ; save tsc / sec
 
; SET VARIABLES
 
        call  set_variables
 
; STACK AND FDC
 
        call  stack_init
        call  fdc_init
 
; PALETTE FOR 320x200 and 640x480 16 col
 
        cmp   [0xfe0c],word 0x12
        jne   no_pal_vga
        mov   esi,boot_pal_vga
        call  boot_log
        call  paletteVGA
      no_pal_vga:
 
        cmp   [0xfe0c],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
 
; MTRR'S
 
        call  enable_mtrr
 
 
; LOAD FIRST APPLICATION
        mov   [0x3000],dword 1
        mov   [0x3004],dword 1
        cli
        cmp   byte [0x2f0000+0x9030],1
        jne   no_load_vrr_m
        mov   ebp,vrr_m
        lea   esi,[ebp+6]       ; skip '/rd/1/'
        xor   ebx,ebx                   ; no parameters
        xor   edx,edx                   ; no flags
        call  fs_RamdiskExecute.flags
        cmp   eax,2                  ; if vrr_m app found (PID=2)
        je    first_app_found
 
    no_load_vrr_m:
        mov   ebp,firstapp
        lea   esi,[ebp+6]
        xor   ebx,ebx                   ; no parameters
        xor   edx,edx                   ; no flags
        call  fs_RamdiskExecute.flags
 
        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   [0x3004],dword 2
        mov   [0x3000],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
        call  Wait8042BufferEmpty
 
       ; 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   [0xe000],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
 
;        mov    [dma_hdd],1
 
        sti
        jmp   $                      ; wait here for timer to take control
 
        ; Fly :)
 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;                                                                    ;
;                    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                               ;
;                                                                      ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
enable_mtrr:
 
        pushad
 
        cmp    [0x2f0000+0x901c],byte 2
        je     no_mtrr
        mov    eax,[0xFE0C]                ; if no LFB then no MTRR
        test   eax,0100000000000000b
        jz     no_mtrr
        mov    edx,[cpuid_1+3*4]           ; edx - MTRR's supported ?
        test   edx,1000000000000b
        jz     no_mtrr
        call   find_empty_mtrr
        cmp    ecx,0
        jz     no_mtrr
        mov    esi,boot_mtrr               ; 'setting mtrr'
        call   boot_log
        mov    edx,0x0                     ; LFB , +8 M , write combine
        mov    eax,[0x2f9018]
        or     eax,1
        wrmsr
        inc    ecx
        mov    edx,0xf
        mov    eax,0xff800800
        wrmsr
        mov    ecx,0x2ff                   ; enable mtrr's
        rdmsr
        or     eax,100000000000b           ; set
        wrmsr
     no_mtrr:
 
        popad
        ret
 
 
find_empty_mtrr:  ; 8 pairs checked
 
        mov    ecx,0x201-2
      mtrr_find:
        add    ecx,2
        cmp    ecx,0x200+8*2
        jge    no_free_mtrr
        rdmsr
        test   eax,0x0800
        jnz    mtrr_find
        dec    ecx
        ret
      no_free_mtrr:
        mov    ecx,0
        ret
 
reserve_irqs_ports:
 
        pushad
 
        mov  [irq_owner+4*0],byte 1    ; timer
        mov  [irq_owner+4*1],byte 1    ; keyboard
        mov  [irq_owner+4*5],byte 1    ; sound blaster
        mov  [irq_owner+4*6],byte 1    ; floppy diskette
        mov  [irq_owner+4*13],byte 1   ; math co-pros
        mov  [irq_owner+4*14],byte 1   ; ide I
        mov  [irq_owner+4*15],byte 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                    ; 0x00-0xff
        mov   [0x2d0000],edi
        shl   edi,4
        mov   [0x2d0000+edi+0],dword 1
        mov   [0x2d0000+edi+4],dword 0x0
        mov   [0x2d0000+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   [0xfcff],byte 0                 ; mouse buffer
        mov   [0xf400],byte 0                 ; keyboard buffer
        mov   [0xf500],byte 0                 ; button buffer
;        mov   [0xfb0a],dword 100*65536+100    ; mouse x/y
 
        push  eax
        mov   ax,[0x2f0000+0x900c]
        shr   ax,1
        shl   eax,16
        mov   ax,[0x2f0000+0x900A]
        shr   ax,1
        mov   [0xfb0a],eax
        pop   eax
 
        mov   byte [SB16_Status],0            ; Minazzi Paolo
        mov   [display_data-12],dword 1       ; tiled background
        mov   [0xfe88],dword 0x2C0000         ; address of button list
 
     ;!! IP 04.02.2005:
        mov   [next_usage_update], 100
        mov   byte [0xFFFF], 0 ; change task if possible
 
        ret
 
;* mouse centered - start code- Mario79
mouse_centered:
        push  eax
        mov   eax,[0xFE00]
        shr   eax,1
        mov   [0xFB0A],ax
        mov   eax,[0xFE04]
        shr   eax,1
        mov   [0xFB0C],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,[0x2d0000]
    test  ecx,ecx
    jne   sopl8
    mov   [esp+36],dword 1
    ret
 
  sopl8:
    mov   edx,[0x3010]
    mov   edx,[edx+0x4]
    and   ebx,65535
    cld
  sopl1:
 
    mov   esi,ecx
    shl   esi,4
    add   esi,0x2d0000
    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
 
 
align 4
 
sys_wss:
 
     cmp  word [wss],word 0
     jnz  wssl1
     mov  [esp+36],dword 1
     ret
   wssl1:
 
     cmp  eax,1    ; set volume - main
     jnz  wssl2
     mov  [esp+36],dword 0
     ret
   wssl2:
 
     cmp  eax,2    ; set volume - cd
     jnz  wssl3
     ; L
     mov  dx,word [wss]
     add  dx,4
     mov  al,0x2
     out  dx,al
     mov  esi,1
     call delay_ms
     mov  eax,ebx
     inc  edx
     out  dx,al
     ; R
     mov  dx,word [wss]
     add  dx,4
     mov  al,0x3
     out  dx,al
     mov  esi,1
     call delay_ms
     mov  eax,ebx
     inc  edx
     out  dx,al
     mov  [esp+36],dword 0
     ret
   wssl3:
     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
 
     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
     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
     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
     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,[0x3000]
        shl     edi,8
        add     ax,word[edi+0x80000+APPDATA.wnd_clientbox.top]
        rol     eax,16
        add     ax,word[edi+0x80000+APPDATA.wnd_clientbox.left]
        rol     eax,16
 
     mov   edx,eax
     mov   ecx,65
     sub   ecx,eax
     add   ecx,esp
     add   ecx,4
     mov   eax,[esp+64+32-8+4]
     push  edx                       ; add window start x & y
     mov   edx,[0x3010]
     mov   ebx,[edx-twdw+WDATA.box.left]
     shl   ebx,16
     add   ebx,[edx-twdw+WDATA.box.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]
     xor   edi,edi
     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
; 6=wss base , base io address
; 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
 
midi_base dw 0
 
   nsyse1:
 
     cmp  eax,2                      ; KEYBOARD
     jnz  nsyse2
     cmp  ebx,1
     jnz  kbnobase
     mov  edi,[0x3010]
     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,[0x3010]
     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,[0x3010]
     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,6                      ; WSS
     jnz  nsyse6
     cmp  ebx,0x100
     jb   nsyse6
     mov  [wss],ebx
     ret
 
wss_temp dd 0
 
   nsyse6:
 
     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:
     mov   [0xfe10],dword 0
    call  reserve_hd1
    call  clear_hd_cache
    mov   [hd1_status],0        ; free
   nosethd:
     ret
 
hd_base db 0
 
   nsyse7:
 
     cmp  eax,8                      ; HD PARTITION
     jne  nsyse8
     mov  [fat32part],ebx
;     call set_FAT32_variables
    call  reserve_hd1
    call  clear_hd_cache
     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
; 6=wss base
; 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,[0x3010]
     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,[0x3010]
     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,[0x3010]
     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,6
     jnz  ngsyse6
     mov  eax,[wss]
     mov  [esp+36],eax
     ret
   ngsyse6:
     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
 
 
align 4
 
readmousepos:
 
; eax=0 screen relative
; eax=1 window relative
; eax=2 buttons pressed
 
    test eax,eax
    jnz  nosr
    mov  eax,[0xfb0a]
    shl  eax,16
    mov  ax,[0xfb0c]
    mov  [esp+36],eax
    ret
  nosr:
 
    cmp  eax,1
    jnz  nowr
    mov  eax,[0xfb0a]
    shl  eax,16
    mov  ax,[0xfb0c]
    mov  esi,[0x3010]
    mov  bx, word [esi-twdw+WDATA.box.left]
    shl  ebx,16
    mov  bx, word [esi-twdw+WDATA.box.top]
    sub  eax,ebx
 
        mov     edi,[0x3000]
        shl     edi,8
        sub     ax,word[edi+0x80000+APPDATA.wnd_clientbox.top]
        rol     eax,16
        sub     ax,word[edi+0x80000+APPDATA.wnd_clientbox.left]
        rol     eax,16
 
    mov  [esp+36],eax
    ret
  nowr:
 
    cmp   eax,2
    jnz   nomb
    movzx eax,byte [0xfb40]
  nomb:
    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,[0x3010]
     mov   [eax+TASKDATA.state], 3  ; terminate this program
 
    waitterm:            ; wait here for termination
     mov   eax,5
     call  delay_hs
     jmp   waitterm
 
iglobal
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
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  [0x2f0000+0x9030],byte 0
  for_shutdown_parameter:
     mov  eax,[0x3004]
     add  eax,2
     mov  [shutdown_processes],eax
     mov  [0xFF00],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,[0x3004]
     cmp  ebx,edx
     ja   noprocessterminate
     mov  eax,[0x3004]
     shl  ebx,5
     mov  edx,[ebx+0x3000+TASKDATA.pid]
     add  ebx,0x3000+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,[0x3004]
     ja   .nowindowactivate
 
     mov   [window_minimize], 2   ; restore window if minimized
 
     movzx esi, word [0xC000 + ebx*2]
     cmp   esi, [0x3004] 
     je    .nowindowactivate ; already active
 
     mov   edi, ebx
     shl   edi, 5
     add   edi, window_data
     movzx esi, word [0xC000 + ebx * 2]
     lea   esi, [0xC400 + 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,[0xf600]
     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, [0x3004]
   movzx  eax, word [0xC400 + 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  [0x2f0000+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,[0x3010]
     mov edi,[edi+TASKDATA.mem_start]
     add edi,ecx
     mov esi,0x40000
     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,[0x3010]
     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   [0xFB0C],cx    ;y
     ror   ecx,16
     mov   [0xFB0A],cx    ;x
     rol   ecx,16
 .end:
     ret
 
sysfn_getfreemem:
     mov  eax,[MEM_FreeSpace]
     shl  eax,2
     mov  [esp+36],eax
     ret
 
sysfn_getallmem:
     mov  eax,[0xFE8C]
     shr  eax,10
;     mov  eax,[MEM_AllSpace]
;     shl  eax,2
     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 0,6,0,0  ; version 0.6.0.0
  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+0x300000],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   [0xfff0],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, [0x3010]
    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, 0x300000
    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+0x300000]
    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, [0x3000]                          ; TOP OF WINDOW STACK
    movzx ecx,word [0xC000 + ebx * 2]
    mov   edx,[0x3004]
    cmp   ecx,edx
    jne   .finish
    cmp   [0xf400],byte 0
    je    .finish
    movzx eax,byte [0xf401]
    shl   eax,8
    push  eax
    dec   byte [0xf400]
    and   byte [0xf400],127
    movzx ecx,byte [0xf400]
    add   ecx,2
 ;   mov   esi,0xf402
 ;   mov   edi,0xf401
 ;   cld
 ;  rep   movsb
    mov   eax, 0xF402
    mov   ebx, 0xF401
    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, [0x3000]                         ; TOP OF WINDOW STACK
    mov   [esp+36],dword 1
    movzx ecx, word [0xC000 + ebx * 2]
    mov   edx, [0x3004] ; less than 256 processes
    cmp   ecx,edx
    jne   .exit
    movzx eax,byte [0xf500]
    test  eax,eax
    jz    .exit
    mov   eax,[0xf501]
    shl   eax,8
    mov   [0xf500],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,[0x3010]   ; eax = return area
    add  eax,[edi + TASKDATA.mem_start]
 
    cmp  ebx,-1         ; who am I ?
    jne  no_who_am_i
    mov  ebx,[0x3000]
  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,0x3000+TASKDATA.cpu_usage
    mov  ebx,eax
    pop  eax
    mov  ecx,[ebx]
    mov  [eax],ecx
    pop  ebx
    mov  cx, [0xC000 + ebx * 2]
    mov  [eax+4],cx
    mov  cx, [0xC400 + ebx * 2]
    mov  [eax+6],cx
    push eax
    mov  eax,ebx
    shl  eax,8
    add  eax,0x80000+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,[0x80000+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,0x3000+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,0x3000+TASKDATA.state
    mov    eax,[eax]
    mov    [ebx+40],ax
 
    ; Window client area box
 
    mov    esi,[esp]
    shl    esi,8
    add    esi,0x80000+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+window_data+WDATA.fl_wstate]
    mov    [edi],al
 
    pop    ebx
    pop    eax
 
    ; return number of processes
 
    mov    eax,[0x3004]
    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,[0x3000]
 
  sys_newba2:
 
    mov   edi,[0xfe88]
    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,[0x3010]      ; return whole screen draw area for this app
    add   edx,draw_data-0x3000
    mov   [edx+RECT.left], 0
    mov   [edx+RECT.top], 0
    mov   eax,[0xfe00]
    mov   [edx+RECT.right],eax
    mov   eax,[0xfe04]
    mov   [edx+RECT.bottom],eax
 
    mov   edi,[0x3010]
    mov   [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, [0x3004]
    movzx edi, word [0xC400 + edi*2]
    cmp   edi, [0x3000]
    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,[0x3004]
        movzx   edx,word[0xC400+edx*2]
        cmp     edx,[0x3000]
        jne     @f
        inc     eax
    @@: mov     edx,[0x3000]
        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,[0x3000]
        shl     edi,5
        test    [edi+window_data+WDATA.fl_wstyle],WSTYLE_HASCAPTION
        jz      @f
        mov     ecx,[edi*8+0x80000+APPDATA.wnd_caption]
        or      ecx,ecx
        jz      @f
        add     ecx,[edi+twdw+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+0x80000+APPDATA.wnd_clientbox.left],eax
        shl     eax,1
        neg     eax
        add     eax,[ecx+WDATA.box.width]
        mov     [edi+0x80000+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+0x80000+APPDATA.wnd_clientbox.top],eax
        neg     eax
        sub     eax,[esp]
        add     eax,[ecx+WDATA.box.height]
        mov     [edi+0x80000+APPDATA.wnd_clientbox.height],eax
        add     esp,4
 
        pop     edi ecx eax
        ret
    @@:
        xor     eax,eax
        mov     [edi+0x80000+APPDATA.wnd_clientbox.left],eax
        mov     [edi+0x80000+APPDATA.wnd_clientbox.top],eax
        mov     eax,[ecx+WDATA.box.width]
        mov     [edi+0x80000+APPDATA.wnd_clientbox.width],eax
        mov     eax,[ecx+WDATA.box.height]
        mov     [edi+0x80000+APPDATA.wnd_clientbox.height],eax
 
        pop     edi ecx eax
        ret
 
sys_set_window:
 
    mov   edi,[0x3000]
    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 (?)
    cmp   [edi+WDATA.fl_wdrawn],1
    jz    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,0x80000
 
        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
    mov   ecx,4
    cld
    rep   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   [0xf400],byte 0           ; empty keyboard buffer
    mov   [0xf500],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,[0x3000]
        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
        mov     ecx,[edi*8+0x80000+APPDATA.mem_size]
        add     ecx,255 ; max caption length
        cmp     ebx,ecx
        ja      .exit_fail
 
        mov     [edi*8+0x80000+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,[0x3000]
        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, 0x80000 + 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   [0xfff5],byte 0 ; mouse pointer
        mov   [0xfff4],byte 0 ; no mouse under
        mov   [0xfb44],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,[0xfe00]
;    mov   ebx,[0xfe04]
;    mov   [draw_data+32+8],eax
;    mov   [draw_data+32+12],ebx
;    call  drawbackground
;    mov   [0xfff0],byte 0
;    mov   [0xfff4],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,[0xfe00]     ; screen x size
        inc  edx
        imul edx, ebx
        mov  dl, [eax+edx+display_data] ; lea eax, [...]
 
        xor  ecx, ecx
        mov  eax, [0x3000]
        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, [0x3004]
   set_mouse_event:
    add   edi, 256
    or    [edi+0x80000+APPDATA.event_mask], dword 00100000b
    loop  set_mouse_event
  mouse_not_active:
 
 
    cmp   [0xfff0],byte 0               ; background update ?
    jz    nobackgr
    cmp    [background_defined], 0
    jz    nobackgr
    mov   [0xfff0],byte 2
    call  change_task
    mov   [draw_data+32 + RECT.left],dword 0
    mov   [draw_data+32 + RECT.top],dword 0
    mov   eax,[0xfe00]
    mov   ebx,[0xfe04]
    mov   [draw_data+32 + RECT.right],eax
    mov   [draw_data+32 + RECT.bottom],ebx
    call  drawbackground
    mov   [0xfff0],byte 0
    mov   [0xfff4],byte 0
 
  nobackgr:
 
 
    ; system shutdown request
 
    cmp  [0xFF00],byte 0
    je   noshutdown
 
    mov  edx,[shutdown_processes]
    sub  dl,2
 
    cmp  [0xff00],dl
    jne  no_mark_system_shutdown
 
    mov   edx,0x3040
    movzx ecx,byte [0xff00]
    add   ecx,5
  markz:
    mov   [edx+TASKDATA.state],byte 3
    add   edx,0x20
    loop  markz
 
  no_mark_system_shutdown:
 
    call [disable_mouse]
 
    dec  byte [0xff00]
 
    cmp  [0xff00],byte 0
    je   system_shutdown
 
  noshutdown:
 
 
    mov   eax,[0x3004]                  ; termination
    mov   ebx,0x3020+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,[0x3004]
         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, 0x300000                 ; 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,0x1fff00 / 4
        rep   stosd
 
        mov   byte [0xFFF0], 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,[0x3010]
        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,[0x3010]
;     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,[0x3010]
    add   eax,[edi+TASKDATA.mem_start]
 
    cmp   ebx,16
    jae   .not_owner
    mov   edi,[0x3010]
    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,[0x3010]
     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,0x2e0000
     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,[0x3000]
     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,[0x2d0000]
     test  esi,esi            ; no reserved areas ?
     je    rpal2
     cmp   esi,255            ; max reserved
     jae   rpal1
   rpal3:
     mov   edi,esi
     shl   edi,4
     add   edi,0x2d0000
     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,[0x2d0000]
     add   edi,1
     mov   [0x2d0000],edi
     shl   edi,4
     add   edi,0x2d0000
     mov   esi,[0x3010]
     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,[0x2d0000]     ; no reserved areas ?
     test  esi,esi
     je    frpal2
     mov   edx,[0x3010]
     mov   edx,[edx+TASKDATA.pid]
   frpal3:
     mov   edi,esi
     shl   edi,4
     add   edi,0x2d0000
     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 [0x2d0000]
 
     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,[0x3010]
     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,[0x3010]
     mov   edx,[edx+TASKDATA.pid]
     mov   [edi],edx
     dec   ecx
   ril1:
     mov   [esp+36],ecx ; return in eax
     ret
 
 
 
drawbackground:
       inc   [mouse_pause]
       cmp   [0xfe0c],word 0x12
       je   dbrv20
     dbrv12:
       cmp  [0xfe0c],word 0100000000000000b
       jge  dbrv20
       cmp  [0xfe0c],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,[0x3000]
        shl     edi,8
        add     dx,word[edi+0x80000+APPDATA.wnd_clientbox.top]
        rol     edx,16
        add     dx,word[edi+0x80000+APPDATA.wnd_clientbox.left]
        rol     edx,16
  .forced:
;        mov     eax, vga_putimage
        cmp     [0xfe0c], word 0x12
        jz      @f   ;.doit
        mov     eax, vesa12_putimage
        cmp     [0xfe0c], word 0100000000000000b
        jae     @f
        cmp     [0xfe0c], word 0x13
        jnz     .doit
@@:
        mov     eax, vesa20_putimage
.doit:
        inc     [mouse_pause]
        call    eax
        dec     [mouse_pause]
        jmp     [draw_pointer]
 
; eax x beginning
; ebx y beginning
; ecx x end
; edx y end
; edi color
 
__sys_drawbar:
        mov     esi,[0x3000]
        shl     esi,8
        add     eax,[esi+0x80000+APPDATA.wnd_clientbox.left]
        add     ecx,[esi+0x80000+APPDATA.wnd_clientbox.left]
        add     ebx,[esi+0x80000+APPDATA.wnd_clientbox.top]
        add     edx,[esi+0x80000+APPDATA.wnd_clientbox.top]
  .forced:
    inc   [mouse_pause]
    cmp   [0xfe0c],word 0x12
    je   dbv20
   sdbv20:
    cmp  [0xfe0c],word 0100000000000000b
    jge  dbv20
    cmp  [0xfe0c],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     [0xf200],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:
 
     mov   edx,[cpuid_1+3*4]
     test  edx,00010000b
     jz    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 512 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, 511
     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_trace:
 
     test eax, eax                  ; get event data
     jnz  no_get_sys_events
 
     mov  esi,save_syscall_data     ; data
     mov  edi,[0x3010]
     mov  edi,[edi+TASKDATA.mem_start]
     add  edi,ebx
     cld
     rep  movsb
 
     mov  [esp+24],dword 0
     mov  eax,[save_syscall_count]  ; count
     mov  [esp+36],eax
     ret
 
   no_get_sys_events:
 
     ret
 
 
sys_process_def:
        mov     edi, [0x3000]
 
        dec     eax             ; 1 = set keyboard mode
     jne   no_set_keyboard_setup
 
     shl   edi,8
     mov   [edi+0x80000 + 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 [0x80000+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
 
 
sys_ipc:
     cmp  eax,1                      ; DEFINE IPC MEMORY
     jne  no_ipc_def
     mov  edi,[0x3000]
     shl  edi,8
     add  edi,0x80000
     mov  [edi + APPDATA.ipc_start], ebx
     mov  [edi + APPDATA.ipc_size], ecx
     mov  [esp+36],dword 0
     ret
   no_ipc_def:
 
     cmp  eax,2                      ; SEND IPC MESSAGE
     jne  no_ipc_send
     mov  esi,1
     mov  edi,0x3020
    ipcs1:
     cmp  [edi+TASKDATA.pid], ebx
     je   ipcs2
     add  edi,0x20
     inc  esi
     cmp  esi,[0x3004]
     jbe  ipcs1
     mov  [esp+36],dword 4
     ret
    ipcs2:
 
     cli
 
     push esi
     mov  eax,esi
     shl  eax,8
     mov  ebx,[eax+0x80000 + APPDATA.ipc_start]
     test ebx,ebx                  ; ipc area not defined ?
     je   ipc_err1
 
     add  ebx,[eax+0x80000 + APPDATA.ipc_size]
     mov  eax,esi
     shl  eax,5
     add  ebx,[eax+0x3000 + TASKDATA.mem_start]    ; ebx <- max data position
 
     mov  eax,esi                  ; to
     shl  esi,8
     add  esi,0x80000
     mov  edi,[esi+APPDATA.ipc_start]
     shl  eax,5
     add  eax,0x3000
     add  edi,[eax+TASKDATA.mem_start]
 
     cmp  [edi],byte 0             ; overrun ?
     jne  ipc_err2
 
     mov  ebp,edi
     add  edi,[edi+4]
     add  edi,8
 
     mov  esi,ecx                  ; from
     mov  eax,[0x3010]
     mov  eax,[eax+TASKDATA.mem_start]
     add  esi,eax
 
     mov  ecx,edx                  ; size
 
     mov  eax,edi
     add  eax,ecx
     cmp  eax,ebx
     jg   ipc_err3                 ; not enough room ?
 
     push ecx
 
     mov  eax,[0x3010]
     mov  eax,[eax+TASKDATA.pid]
     mov  [edi-8],eax
     mov  [edi-4],ecx
     cld
     rep  movsb
 
     pop  ecx
     add  ecx,8
 
     mov  edi,ebp                  ; increase memory position
     add  dword [edi+4],ecx
 
     mov  edi,[esp]
     shl  edi,8
     or   dword [edi+0x80000+APPDATA.event_mask],dword 01000000b ; ipc message
 
     cmp  [check_idle_semaphore],dword 20
     jge  ipc_no_cis
     mov  [check_idle_semaphore],5
   ipc_no_cis:
 
     xor  eax, eax
 
    ipc_err:
     add  esp,4
     mov  [esp+36],eax
     sti
     ret
 
    ipc_err1:
     add  esp,4
     mov  [esp+36],dword 1
     sti
     ret
    ipc_err2:
     add  esp,4
     mov  [esp+36],dword 2
     sti
     ret
    ipc_err3:
     add  esp,4
     mov  [esp+36],dword 3
     sti
     ret
 
   no_ipc_send:
 
     mov  [esp+36],dword -1
     ret
 
 
align 4
 
sys_gs:                         ; direct screen access
 
     cmp  eax,1                 ; resolution
     jne  no_gs1
     mov  eax,[0xfe00]
     shl  eax,16
     mov  ax,[0xfe04]
     add  eax,0x00010001
     mov  [esp+36],eax
     ret
   no_gs1:
 
     cmp   eax,2                ; bits per pixel
     jne   no_gs2
     movzx eax,byte [0xfbf1]
     mov   [esp+36],eax
     ret
   no_gs2:
 
     cmp   eax,3                ; bytes per scanline
     jne   no_gs3
     mov   eax,[0xfe08]
     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,[0x3010]
     add   eax,[edx-twdw+WDATA.box.left]
     add   ebx,[edx-twdw+WDATA.box.top]
        mov     edi,[0x3000]
        shl     edi,8
        add     eax,[edi+0x80000+APPDATA.wnd_clientbox.left]
        add     ebx,[edi+0x80000+APPDATA.wnd_clientbox.top]
     xor   edi,edi ; no force
;     mov   edi,1
     call  [disable_mouse]
     jmp   [putpixel]
 
align 4
 
syscall_writetext:                      ; WriteText
 
     mov   edi,[0x3010]
     mov   ebp,[edi-twdw+WDATA.box.left]
        push    esi
        mov     esi,[0x3000]
        shl     esi,8
        add     ebp,[esi+0x80000+APPDATA.wnd_clientbox.left]
     shl   ebp,16
     add   ebp,[edi-twdw+WDATA.box.top]
        add     bp,word[esi+0x80000+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,[0x3010]
     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,[0x3000]
        shl     esi,8
        add     eax,[esi+0x80000+APPDATA.wnd_clientbox.left]
        add     ebx,[esi+0x80000+APPDATA.wnd_clientbox.top]
     add   ecx,eax
     add   edx,ebx
     jmp   [drawbar]
    drectr:
     ret
 
align 4
 
syscall_getscreensize:                  ; GetScreenSize
 
     movzx eax,word[0xfe00]
     shl   eax,16
     mov   ax,[0xfe04]
     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,[0x3010]
     add   edi, TASKDATA.mem_start
     add   eax,[edi]
     call  filedelete
     mov   [esp+36],eax
     ret
 
align 4
 
syscall_writeramdiskfile:               ; WriteRamdiskFile
 
     mov   edi,[0x3010]
     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,[0xfe00]
     inc   ecx
     xor   edx,edx
     div   ecx
     mov   ebx,edx
     xchg  eax,ebx
     call  dword [0xe024]
     mov   [esp+36],ecx
     ret
 
align 4
 
syscall_readstring:                     ; ReadString
 
     mov   edi,[0x3010]
     add   edi, TASKDATA.mem_start
     add   eax,[edi]
     call  read_string
     mov   [esp+36],eax
     ret
 
align 4
 
syscall_drawline:                       ; DrawLine
 
     mov   edi,[0x3010]
     movzx edx,word[edi-twdw+WDATA.box.left]
     mov   ebp,edx
        mov     esi,[0x3000]
        shl     esi,8
        add     ebp,[esi+0x80000+APPDATA.wnd_clientbox.left]
        add     dx,word[esi+0x80000+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+0x80000+APPDATA.wnd_clientbox.top]
        add     dx,word[esi+0x80000+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,[0x3010]
     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
 
write_to_hd:                            ; Write a file to hd
 
     mov   edi,[0x3010]
     add   edi,TASKDATA.mem_start
     add   eax,[edi]
     add   ecx,[edi]
     add   edx,[edi]
     call  file_write
     ret
 
;  Sysfunction 57, delete_from_hd, is obsolete. Use 58 or 70 functions instead.
;align 4
;
;delete_from_hd:                         ; Delete a file from hd
;
;     mov   edi,[0x3010]
;     add   edi,0x10
;     add   eax,[edi]
;     add   ecx,[edi]
;     call  file_delete
;     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
 
 
;clear_busy_flag_at_caller:
 
;      push  edi
 
;      mov   edi,[0x3000]    ; restore processes tss pointer in gdt, busyfl?
;      imul  edi,8
;      mov   [edi+gdts+ tss0 +5], word 01010000b *256 +11101001b
 
;      pop   edi
 
;      ret
 
 
 
 
keymap:
 
     db   '6',27
     db   '1234567890-=',8,9
     db   'qwertyuiop[]',13
     db   '~asdfghjkl;',39,96,0,'\zxcvbnm,./',0,'45 '
     db   '@234567890123',180,178,184,'6',176,'7'
     db   179,'8',181,177,183,185,182
     db   'AB
     db   'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
     db   'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
     db   'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
 
 
keymap_shift:
 
     db   '6',27
     db   '!@#$%^&*()_+',8,9
     db   'QWERTYUIOP{}',13
     db   '~ASDFGHJKL:"~',0,'|ZXCVBNM<>?',0,'45 '
     db   '@234567890123',180,178,184,'6',176,'7'
     db   179,'8',181,177,183,185,182
     db   'AB>D',255,'FGHIJKLMNOPQRSTUVWXYZ'
     db   'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
     db   'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
     db   'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
 
 
keymap_alt:
 
     db   ' ',27
     db   ' @ $  {[]}\ ',8,9
     db   '            ',13
     db   '             ',0,'           ',0,'4',0,' '
     db   '             ',180,178,184,'6',176,'7'
     db   179,'8',181,177,183,185,182
     db   'ABCD',255,'FGHIJKLMNOPQRSTUVWXYZ'
     db   'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
     db   'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
     db   'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
 
 
; device irq owners
uglobal
irq_owner:       ; process id
 
     dd   0x0
     dd   0x0
     dd   0x0
     dd   0x0
     dd   0x0
     dd   0x0
     dd   0x0
     dd   0x0
     dd   0x0
     dd   0x0
     dd   0x0
     dd   0x0
     dd   0x0
     dd   0x0
     dd   0x0
     dd   0x0
endg
 
 
; on irq read ports
uglobal
  irq00read  dd  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
  irq01read  dd  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
  irq02read  dd  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
  irq03read  dd  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
  irq04read  dd  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
  irq05read  dd  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
  irq06read  dd  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
  irq07read  dd  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
  irq08read  dd  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
  irq09read  dd  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
  irq10read  dd  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
  irq11read  dd  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
  irq12read  dd  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
  irq13read  dd  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
  irq14read  dd  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
  irq15read  dd  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
endg
 
; status
uglobal
  hd1_status                  dd 0x0  ; 0 - free : other - pid
  application_table_status    dd 0x0  ; 0 - free : other - pid
endg
 
; device addresses
uglobal
  mididp     dd 0x0
  midisp     dd 0x0
 
  cdbase     dd 0x0
  cdid       dd 0x0
 
  hdbase              dd   0x0  ; for boot 0x1f0
  hdid                dd   0x0
  hdpos               dd   0x0  ; for boot 0x1
  fat32part           dd   0x0  ; for boot 0x1
 
  ;part2_ld            dd   0x0
 
;* start code - Mario79
mouse_pause         dd   0
MouseTickCounter    dd   0
ps2_mouse_detected  db   0
com1_mouse_detected db   0
com2_mouse_detected db   0
;* end code - Mario79
 
wraw_bacground_select db 0
  lba_read_enabled    dd   0x0  ; 0 = disabled , 1 = enabled
  pci_access_enabled  dd   0x0  ; 0 = disabled , 1 = enabled
 
  sb16       dd 0x0
  wss        dd 0x0
 
  buttontype         dd 0x0
  windowtypechanged  dd 0x0
endg
 
iglobal
  keyboard   dd 0x1
  sound_dma  dd 0x1
  syslang    dd 0x1
endg
 
IncludeIGlobals
endofcode:
IncludeUGlobals
uglobals_size = $ - endofcode
diff16 "end of kernel code",0,$
>

Rev 149	Rev 150
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 "kglobals.inc"	13	include "kglobals.inc"
14	include "lang.inc"	14	include "lang.inc"
15		15
16	WinMapAddress equ 0x460000	16	WinMapAddress equ 0x460000
17	display_data = 0x460000	17	display_data = 0x460000
18		18
19	max_processes equ 255	19	max_processes equ 255
20		20
21	window_data equ 0x0000	21	window_data equ 0x0000
22	tss_data equ 0xD20000	22	tss_data equ 0xD20000
23	;tss_step equ (128+2048) ; tss & i/o - 16384 ports, * 256=557056	23	;tss_step equ (128+2048) ; tss & i/o - 16384 ports, * 256=557056
24	tss_step equ (128+8192) ; tss & i/o - 65535 ports, * 256=557056*4	24	tss_step equ (128+8192) ; tss & i/o - 65535 ports, * 256=557056*4
25	draw_data equ 0xC00000	25	draw_data equ 0xC00000
26	sysint_stack_data equ 0xC03000	26	sysint_stack_data equ 0xC03000
27		27
28		28
29	twdw equ (0x3000-window_data)	29	twdw equ (0x3000-window_data)
30		30
31	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	31	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
32	;;	32	;;
33	;; Included files:	33	;; Included files:
34	;;	34	;;
35	;; Kernel16.inc	35	;; Kernel16.inc
36	;; - Booteng.inc English text for bootup	36	;; - Booteng.inc English text for bootup
37	;; - Bootcode.inc Hardware setup	37	;; - Bootcode.inc Hardware setup
38	;; - Pci16.inc PCI functions	38	;; - Pci16.inc PCI functions
39	;;	39	;;
40	;; Kernel32.inc	40	;; Kernel32.inc
41	;; - Sys32.inc Process management	41	;; - Sys32.inc Process management
42	;; - Shutdown.inc Shutdown and restart	42	;; - Shutdown.inc Shutdown and restart
43	;; - Fat32.inc Read / write hd	43	;; - Fat32.inc Read / write hd
44	;; - Vesa12.inc Vesa 1.2 driver	44	;; - Vesa12.inc Vesa 1.2 driver
45	;; - Vesa20.inc Vesa 2.0 driver	45	;; - Vesa20.inc Vesa 2.0 driver
46	;; - Vga.inc VGA driver	46	;; - Vga.inc VGA driver
47	;; - Stack.inc Network interface	47	;; - Stack.inc Network interface
48	;; - Mouse.inc Mouse pointer	48	;; - Mouse.inc Mouse pointer
49	;; - Scincode.inc Window skinning	49	;; - Scincode.inc Window skinning
50	;; - Pci32.inc PCI functions	50	;; - Pci32.inc PCI functions
51	;;	51	;;
52	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	52	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
53		53
54		54
55	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	55	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
56	;; ;;	56	;; ;;
57	;; 16 BIT ENTRY FROM BOOTSECTOR ;;	57	;; 16 BIT ENTRY FROM BOOTSECTOR ;;
58	;; ;;	58	;; ;;
59	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	59	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
60		60
61	use16	61	use16
62	org 0x0	62	org 0x0
63	jmp start_of_code	63	jmp start_of_code
64		64
65	; mike.dld {	65	; mike.dld {
66	org $+0x10000	66	org $+0x10000
67	db 0	67	db 0
68	dd servetable-0x10000	68	dd servetable-0x10000
69	draw_line dd __sys_draw_line	69	draw_line dd __sys_draw_line
70	disable_mouse dd __sys_disable_mouse	70	disable_mouse dd __sys_disable_mouse
71	draw_pointer dd __sys_draw_pointer	71	draw_pointer dd __sys_draw_pointer
72	;//mike.dld, 2006-08-02 [	72	;//mike.dld, 2006-08-02 [
73	;drawbar dd __sys_drawbar	73	;drawbar dd __sys_drawbar
74	drawbar dd __sys_drawbar.forced	74	drawbar dd __sys_drawbar.forced
75	;//mike.dld, 2006-08-02 ]	75	;//mike.dld, 2006-08-02 ]
76	putpixel dd __sys_putpixel	76	putpixel dd __sys_putpixel
77	; } mike.dld	77	; } mike.dld
78		78
79	version db 'Kolibri OS version 0.6.0.0 ',13,10,13,10,0	79	version db 'Kolibri OS version 0.6.0.0 ',13,10,13,10,0
80	;dd endofcode-0x10000	80	;dd endofcode-0x10000
81		81
82	;db 'Boot02'	82	;db 'Boot02'
83	;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!	83	;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
84	include "boot/preboot.inc"	84	include "boot/preboot.inc"
85	;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!	85	;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
86		86
87	preboot_lfb db 0	87	preboot_lfb db 0
88	preboot_bootlog db 0	88	preboot_bootlog db 0
89		89
90		90
91	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	91	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
92	;; ;;	92	;; ;;
93	;; 16 BIT INCLUDED FILES ;;	93	;; 16 BIT INCLUDED FILES ;;
94	;; ;;	94	;; ;;
95	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	95	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
96		96
97	include "kernel16.inc"	97	include "kernel16.inc"
98		98
99	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	99	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
100	;; ;;	100	;; ;;
101	;; SWITCH TO 32 BIT PROTECTED MODE ;;	101	;; SWITCH TO 32 BIT PROTECTED MODE ;;
102	;; ;;	102	;; ;;
103	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	103	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
104		104
105	os_data = os_data_l-gdts ; GDTs	105	os_data = os_data_l-gdts ; GDTs
106	os_code = os_code_l-gdts	106	os_code = os_code_l-gdts
107	int_code equ int_code_l-gdts	107	int_code equ int_code_l-gdts
108	int_data equ int_data_l-gdts	108	int_data equ int_data_l-gdts
109	tss0sys equ tss0sys_l-gdts	109	tss0sys equ tss0sys_l-gdts
110	graph_data equ 3+graph_data_l-gdts	110	graph_data equ 3+graph_data_l-gdts
111	tss0 equ tss0_l-gdts	111	tss0 equ tss0_l-gdts
112	app_code equ 3+app_code_l-gdts	112	app_code equ 3+app_code_l-gdts
113	app_data equ 3+app_data_l-gdts	113	app_data equ 3+app_data_l-gdts
114		114
115		115
116		116
117	; CR0 Flags - Protected mode and Paging	117	; CR0 Flags - Protected mode and Paging
118		118
119	mov ecx,0x00000001	119	mov ecx,0x00000001
120	;and ebx,65535	120	;and ebx,65535
121	;cmp ebx,00100000000000000b ; lfb -> paging	121	;cmp ebx,00100000000000000b ; lfb -> paging
122	;jb no_paging	122	;jb no_paging
123	;mov ax,0x0000	123	;mov ax,0x0000
124	;mov es,ax	124	;mov es,ax
125	;mov al,[es:0x901E]	125	;mov al,[es:0x901E]
126	;cmp al,1	126	;cmp al,1
127	;je no_paging	127	;je no_paging
128	;or ecx, 0x80000000	128	;or ecx, 0x80000000
129	;no_paging:	129	;no_paging:
130		130
131	; Enabling 32 bit protected mode	131	; Enabling 32 bit protected mode
132		132
133	sidt [cs:old_ints_h-0x10000]	133	sidt [cs:old_ints_h-0x10000]
134		134
135	cli ; disable all irqs	135	cli ; disable all irqs
136	cld	136	cld
137	mov al,255 ; mask all irqs	137	mov al,255 ; mask all irqs
138	out 0xa1,al	138	out 0xa1,al
139	out 0x21,al	139	out 0x21,al
140	l.5: in al, 0x64 ; Enable A20	140	l.5: in al, 0x64 ; Enable A20
141	test al, 2	141	test al, 2
142	jnz l.5	142	jnz l.5
143	mov al, 0xD1	143	mov al, 0xD1
144	out 0x64, al	144	out 0x64, al
145	l.6: in al, 0x64	145	l.6: in al, 0x64
146	test al, 2	146	test al, 2
147	jnz l.6	147	jnz l.6
148	mov al, 0xDF	148	mov al, 0xDF
149	out 0x60, al	149	out 0x60, al
150	l.7: in al, 0x64	150	l.7: in al, 0x64
151	test al, 2	151	test al, 2
152	jnz l.7	152	jnz l.7
153	mov al, 0xFF	153	mov al, 0xFF
154	out 0x64, al	154	out 0x64, al
155	lgdt [cs:gdts-0x10000] ; Load GDT	155	lgdt [cs:gdts-0x10000] ; Load GDT
156	mov eax, cr0 ; Turn on paging // protected mode	156	mov eax, cr0 ; Turn on paging // protected mode
157	or eax, ecx	157	or eax, ecx
158	and eax, 10011111b 65536256 + 0xffffff ; caching enabled	158	and eax, 10011111b 65536256 + 0xffffff ; caching enabled
159	mov cr0, eax	159	mov cr0, eax
160	jmp $+2	160	jmp $+2
161	org $+0x10000	161	org $+0x10000
162	mov ax,os_data ; Selector for os	162	mov ax,os_data ; Selector for os
163	mov ds,ax	163	mov ds,ax
164	mov es,ax	164	mov es,ax
165	mov fs,ax	165	mov fs,ax
166	mov gs,ax	166	mov gs,ax
167	mov ss,ax	167	mov ss,ax
168	mov esp,0x3ec00 ; Set stack	168	mov esp,0x3ec00 ; Set stack
169	jmp pword os_code:B32 ; jmp to enable 32 bit mode	169	jmp pword os_code:B32 ; jmp to enable 32 bit mode
170		170
171	use32	171	use32
172		172
173	iglobal	173	iglobal
174	boot_memdetect db 'Determining amount of memory',0	174	boot_memdetect db 'Determining amount of memory',0
175	boot_fonts db 'Fonts loaded',0	175	boot_fonts db 'Fonts loaded',0
176	boot_tss db 'Setting TSSs',0	176	boot_tss db 'Setting TSSs',0
177	boot_cpuid db 'Reading CPUIDs',0	177	boot_cpuid db 'Reading CPUIDs',0
178	boot_devices db 'Detecting devices',0	178	boot_devices db 'Detecting devices',0
179	boot_timer db 'Setting timer',0	179	boot_timer db 'Setting timer',0
180	boot_irqs db 'Reprogramming IRQs',0	180	boot_irqs db 'Reprogramming IRQs',0
181	boot_setmouse db 'Setting mouse',0	181	boot_setmouse db 'Setting mouse',0
182	boot_windefs db 'Setting window defaults',0	182	boot_windefs db 'Setting window defaults',0
183	boot_bgr db 'Calculating background',0	183	boot_bgr db 'Calculating background',0
184	boot_resirqports db 'Reserving IRQs & ports',0	184	boot_resirqports db 'Reserving IRQs & ports',0
185	boot_setrports db 'Setting addresses for IRQs',0	185	boot_setrports db 'Setting addresses for IRQs',0
186	boot_setostask db 'Setting OS task',0	186	boot_setostask db 'Setting OS task',0
187	boot_allirqs db 'Unmasking all IRQs',0	187	boot_allirqs db 'Unmasking all IRQs',0
188	boot_tsc db 'Reading TSC',0	188	boot_tsc db 'Reading TSC',0
189	boot_pal_ega db 'Setting EGA/CGA 320x200 palette',0	189	boot_pal_ega db 'Setting EGA/CGA 320x200 palette',0
190	boot_pal_vga db 'Setting VGA 640x480 palette',0	190	boot_pal_vga db 'Setting VGA 640x480 palette',0
191	boot_mtrr db 'Setting MTRR',0	191	boot_mtrr db 'Setting MTRR',0
192	boot_tasking db 'All set - press ESC to start',0	192	boot_tasking db 'All set - press ESC to start',0
193	endg	193	endg
194		194
195	iglobal	195	iglobal
196	boot_y dd 10	196	boot_y dd 10
197	endg	197	endg
198		198
199	boot_log:	199	boot_log:
200	pushad	200	pushad
201		201
202	mov eax,10*65536	202	mov eax,10*65536
203	mov ax,word [boot_y]	203	mov ax,word [boot_y]
204	add [boot_y],dword 10	204	add [boot_y],dword 10
205	mov ebx,0x80ffffff ; ASCIIZ string with white color	205	mov ebx,0x80ffffff ; ASCIIZ string with white color
206	mov ecx,esi	206	mov ecx,esi
207	mov edi,1	207	mov edi,1
208	call dtext	208	call dtext
209		209
210	mov [novesachecksum],1000	210	mov [novesachecksum],1000
211	call checkVga_N13	211	call checkVga_N13
212		212
213	cmp [preboot_blogesc],byte 1	213	cmp [preboot_blogesc],byte 1
214	je .bll2	214	je .bll2
215		215
216	cmp esi,boot_tasking	216	cmp esi,boot_tasking
217	jne .bll2	217	jne .bll2
218	; begin ealex 04.08.05	218	; begin ealex 04.08.05
219	; in al,0x61	219	; in al,0x61
220	; and al,01111111b	220	; and al,01111111b
221	; out 0x61,al	221	; out 0x61,al
222	; end ealex 04.08.05	222	; end ealex 04.08.05
223	.bll1: in al,0x60 ; wait for ESC key press	223	.bll1: in al,0x60 ; wait for ESC key press
224	cmp al,129	224	cmp al,129
225	jne .bll1	225	jne .bll1
226		226
227	.bll2: popad	227	.bll2: popad
228		228
229	ret	229	ret
230		230
231	uglobal	231	uglobal
232	cpuid_0 dd 0,0,0,0	232	cpuid_0 dd 0,0,0,0
233	cpuid_1 dd 0,0,0,0	233	cpuid_1 dd 0,0,0,0
234	cpuid_2 dd 0,0,0,0	234	cpuid_2 dd 0,0,0,0
235	cpuid_3 dd 0,0,0,0	235	cpuid_3 dd 0,0,0,0
236	endg	236	endg
237		237
238	iglobal	238	iglobal
239	firstapp db '/rd/1/LAUNCHER',0	239	firstapp db '/rd/1/LAUNCHER',0
240	char db 'CHAR MT '	240	char db 'CHAR MT '
241	char2 db 'CHAR2 MT '	241	char2 db 'CHAR2 MT '
242	bootpath db '/KOLIBRI '	242	bootpath db '/KOLIBRI '
243	bootpath2 db 0	243	bootpath2 db 0
244	vmode db 'VMODE MDR'	244	vmode db 'VMODE MDR'
245	vrr_m db '/rd/1/VRR_M',0	245	vrr_m db '/rd/1/VRR_M',0
246	endg	246	endg
247		247
248		248
249	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	249	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
250	;; ;;	250	;; ;;
251	;; 32 BIT ENTRY ;;	251	;; 32 BIT ENTRY ;;
252	;; ;;	252	;; ;;
253	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	253	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
254		254
255	align 4	255	align 4
256		256
257	B32:	257	B32:
258	; CLEAR 0x280000-0xF00000	258	; CLEAR 0x280000-0xF00000
259		259
260	xor eax,eax	260	xor eax,eax
261	mov edi,0x280000	261	mov edi,0x280000
262	mov ecx,(0x100000*0xF-0x280000) / 4	262	mov ecx,(0x100000*0xF-0x280000) / 4
263	cld	263	cld
264	rep stosd	264	rep stosd
265	; CLEAR 0x80000-0x90000	265	; CLEAR 0x80000-0x90000
266	; xor eax,eax	266	; xor eax,eax
267	mov edi,0x80000	267	mov edi,0x80000
268	mov ecx,(0x90000-0x80000)/4	268	mov ecx,(0x90000-0x80000)/4
269	; cld	269	; cld
270	rep stosd	270	rep stosd
271		271
272	; CLEAR KERNEL UNDEFINED GLOBALS	272	; CLEAR KERNEL UNDEFINED GLOBALS
273	mov edi, endofcode	273	mov edi, endofcode
274	mov ecx, (uglobals_size/4)+4	274	mov ecx, (uglobals_size/4)+4
275	rep stosd	275	rep stosd
276		276
277	; SAVE & CLEAR 0-0xffff	277	; SAVE & CLEAR 0-0xffff
278		278
279	mov esi,0x0000	279	mov esi,0x0000
280	mov edi,0x2F0000	280	mov edi,0x2F0000
281	mov ecx,0x10000 / 4	281	mov ecx,0x10000 / 4
282	cld	282	cld
283	rep movsd	283	rep movsd
284	xor eax,eax	284	xor eax,eax
285	mov edi,0	285	mov edi,0
286	mov ecx,0x10000 / 4	286	mov ecx,0x10000 / 4
287	cld	287	cld
288	rep stosd	288	rep stosd
289		289
290	; SAVE REAL MODE VARIABLES	290	; SAVE REAL MODE VARIABLES
291	; --------------- APM ---------------------	291	; --------------- APM ---------------------
292	mov eax, [0x2f0000 + 0x9040] ; entry point	292	mov eax, [0x2f0000 + 0x9040] ; entry point
293	mov dword[apm_entry], eax	293	mov dword[apm_entry], eax
294	mov word [apm_entry + 4], apm_code_32 - gdts	294	mov word [apm_entry + 4], apm_code_32 - gdts
295		295
296	mov eax, [0x2f0000 + 0x9044] ; version & flags	296	mov eax, [0x2f0000 + 0x9044] ; version & flags
297	mov [apm_vf], eax	297	mov [apm_vf], eax
298	; -----------------------------------------	298	; -----------------------------------------
299	; movzx eax,byte [0x2f0000+0x9010] ; mouse port	299	; movzx eax,byte [0x2f0000+0x9010] ; mouse port
300	; mov [0xF604],byte 1 ;al	300	; mov [0xF604],byte 1 ;al
301	mov al,[0x2f0000+0x9000] ; bpp	301	mov al,[0x2f0000+0x9000] ; bpp
302	mov [0xFBF1],al	302	mov [0xFBF1],al
303	movzx eax,word [0x2f0000+0x900A] ; X max	303	movzx eax,word [0x2f0000+0x900A] ; X max
304	dec eax	304	dec eax
305	mov [0xfe00],eax	305	mov [0xfe00],eax
306	mov [screen_workarea.right],eax	306	mov [screen_workarea.right],eax
307	movzx eax,word [0x2f0000+0x900C] ; Y max	307	movzx eax,word [0x2f0000+0x900C] ; Y max
308	dec eax	308	dec eax
309	mov [0xfe04],eax	309	mov [0xfe04],eax
310	mov [screen_workarea.bottom],eax	310	mov [screen_workarea.bottom],eax
311	movzx eax,word [0x2f0000+0x9008] ; screen mode	311	movzx eax,word [0x2f0000+0x9008] ; screen mode
312	mov [0xFE0C],eax	312	mov [0xFE0C],eax
313	mov eax,[0x2f0000+0x9014] ; Vesa 1.2 bnk sw add	313	mov eax,[0x2f0000+0x9014] ; Vesa 1.2 bnk sw add
314	mov [0xE030],eax	314	mov [0xE030],eax
315	mov [0xfe08],word 640*4 ; Bytes PerScanLine	315	mov [0xfe08],word 640*4 ; Bytes PerScanLine
316	cmp [0xFE0C],word 0x13 ; 320x200	316	cmp [0xFE0C],word 0x13 ; 320x200
317	je @f	317	je @f
318	cmp [0xFE0C],word 0x12 ; VGA 640x480	318	cmp [0xFE0C],word 0x12 ; VGA 640x480
319	je @f	319	je @f
320	mov ax,[0x2f0000+0x9001] ; for other modes	320	mov ax,[0x2f0000+0x9001] ; for other modes
321	mov [0xfe08],ax	321	mov [0xfe08],ax
322	@@:	322	@@:
323		323
324	; GRAPHICS ADDRESSES	324	; GRAPHICS ADDRESSES
325		325
326	;mov eax,0x100000*8 ; LFB address	326	;mov eax,0x100000*8 ; LFB address
327	;cmp [0xfe0c],word 0x13	327	;cmp [0xfe0c],word 0x13
328	;je no_d_lfb	328	;je no_d_lfb
329	;cmp [0xfe0c],word 0x12	329	;cmp [0xfe0c],word 0x12
330	;je no_d_lfb	330	;je no_d_lfb
331	;cmp [0x2f0000+0x901e],byte 1	331	;cmp [0x2f0000+0x901e],byte 1
332	;jne no_d_lfb	332	;jne no_d_lfb
333	mov byte [0x2f0000+0x901e],0x0	333	mov byte [0x2f0000+0x901e],0x0
334	mov eax,[0x2f0000+0x9018]	334	mov eax,[0x2f0000+0x9018]
335	;no_d_lfb:	335	;no_d_lfb:
336	mov [0xfe80],eax	336	mov [0xfe80],eax
337		337
338	cmp [0xfe0c],word 0100000000000000b	338	cmp [0xfe0c],word 0100000000000000b
339	jge setvesa20	339	jge setvesa20
340	cmp [0xfe0c],word 0x13	340	cmp [0xfe0c],word 0x13
341	je v20ga32	341	je v20ga32
342	mov [0xe020],dword Vesa12_putpixel24 ; Vesa 1.2	342	mov [0xe020],dword Vesa12_putpixel24 ; Vesa 1.2
343	mov [0xe024],dword Vesa12_getpixel24	343	mov [0xe024],dword Vesa12_getpixel24
344	cmp [0xfbf1],byte 24	344	cmp [0xfbf1],byte 24
345	jz ga24	345	jz ga24
346	mov [0xe020],dword Vesa12_putpixel32	346	mov [0xe020],dword Vesa12_putpixel32
347	mov [0xe024],dword Vesa12_getpixel32	347	mov [0xe024],dword Vesa12_getpixel32
348	ga24:	348	ga24:
349	jmp v20ga24	349	jmp v20ga24
350	setvesa20:	350	setvesa20:
351	mov [0xe020],dword Vesa20_putpixel24 ; Vesa 2.0	351	mov [0xe020],dword Vesa20_putpixel24 ; Vesa 2.0
352	mov [0xe024],dword Vesa20_getpixel24	352	mov [0xe024],dword Vesa20_getpixel24
353	cmp [0xfbf1],byte 24	353	cmp [0xfbf1],byte 24
354	jz v20ga24	354	jz v20ga24
355	v20ga32:	355	v20ga32:
356	mov [0xe020],dword Vesa20_putpixel32	356	mov [0xe020],dword Vesa20_putpixel32
357	mov [0xe024],dword Vesa20_getpixel32	357	mov [0xe024],dword Vesa20_getpixel32
358	v20ga24:	358	v20ga24:
359	cmp [0xfe0c],word 0x12 ; 16 C VGA 640x480	359	cmp [0xfe0c],word 0x12 ; 16 C VGA 640x480
360	jne no_mode_0x12	360	jne no_mode_0x12
361	mov [0xe020],dword VGA_putpixel	361	mov [0xe020],dword VGA_putpixel
362	mov [0xe024],dword Vesa20_getpixel32	362	mov [0xe024],dword Vesa20_getpixel32
363	no_mode_0x12:	363	no_mode_0x12:
364		364
365	; MEMORY MODEL	365	; MEMORY MODEL
366		366
367	; mov [0xfe84],dword 0x100000*16 ; apps mem base address	367	; mov [0xfe84],dword 0x100000*16 ; apps mem base address
368	; movzx ecx,byte [0x2f0000+0x9030]	368	; movzx ecx,byte [0x2f0000+0x9030]
369	; dec ecx	369	; dec ecx
370	; mov eax,16*0x100000 ; memory-16	370	; mov eax,16*0x100000 ; memory-16
371	; shl eax,cl	371	; shl eax,cl
372	; mov [0xfe8c],eax ; memory for use	372	; mov [0xfe8c],eax ; memory for use
373	; cmp eax,16*0x100000	373	; cmp eax,16*0x100000
374	; jne no16mb	374	; jne no16mb
375	; mov [0xfe84],dword 0xD80000 ; !!! 10 !!!	375	; mov [0xfe84],dword 0xD80000 ; !!! 10 !!!
376	; no16mb:	376	; no16mb:
377		377
378	; init:	378	; init:
379	; 1) 0xFE84 - applications base	379	; 1) 0xFE84 - applications base
380	; 2) 0xFE8C - total amount of memory	380	; 2) 0xFE8C - total amount of memory
381		381
382	xor edi, edi	382	xor edi, edi
383	m_GMS_loop:	383	m_GMS_loop:
384	add edi, 0x400000	384	add edi, 0x400000
385	mov eax, dword [edi]	385	mov eax, dword [edi]
386	mov dword [edi], 'TEST'	386	mov dword [edi], 'TEST'
387	wbinvd	387	wbinvd
388	cmp dword [edi], 'TEST'	388	cmp dword [edi], 'TEST'
389	jne m_GMS_exit	389	jne m_GMS_exit
390	cmp dword [0], 'TEST'	390	cmp dword [0], 'TEST'
391	je m_GMS_exit	391	je m_GMS_exit
392	mov dword [es:edi], eax	392	mov dword [es:edi], eax
393	jmp m_GMS_loop	393	jmp m_GMS_loop
394	m_GMS_exit:	394	m_GMS_exit:
395	mov [edi], eax	395	mov [edi], eax
396	; now edi contains the EXACT amount of memory	396	; now edi contains the EXACT amount of memory
397		397
398	mov eax, 0x100000*16	398	mov eax, 0x100000*16
399	cmp edi, eax ;0x100000*16	399	cmp edi, eax ;0x100000*16
400	jb $ ; less than 16 Mb	400	jb $ ; less than 16 Mb
401		401
402	mov dword [0xFE84], eax ;0x100000*16	402	mov dword [0xFE84], eax ;0x100000*16
403	cmp edi, eax ;0x100000*16	403	cmp edi, eax ;0x100000*16
404	jne @f	404	jne @f
405	mov dword [0xFE84], 0xD80000 ; =0x100000*13.5	405	mov dword [0xFE84], 0xD80000 ; =0x100000*13.5
406	@@:	406	@@:
407	mov dword [0xFE8C], edi	407	mov dword [0xFE8C], edi
408		408
409	;!!!!!!!!!!!!!!!!!!!!!!!!!!	409	;!!!!!!!!!!!!!!!!!!!!!!!!!!
410	include 'detect/disks.inc'	410	include 'detect/disks.inc'
411	;!!!!!!!!!!!!!!!!!!!!!!!!!!	411	;!!!!!!!!!!!!!!!!!!!!!!!!!!
412		412
413	; CHECK EXTRA REGION	413	; CHECK EXTRA REGION
414	; ENABLE PAGING	414	; ENABLE PAGING
415	mov eax,cr0	415	mov eax,cr0
416	or eax,0x80000000	416	or eax,0x80000000
417	mov cr0,eax	417	mov cr0,eax
418	jmp $+2	418	jmp $+2
419		419
420	call MEM_Init	420	call MEM_Init
421	;add 0x800000-0xc00000 area	421	;add 0x800000-0xc00000 area
422	cmp word [0xfe0c],0x13	422	cmp word [0xfe0c],0x13
423	jle .less_memory	423	jle .less_memory
424	mov eax,0x800000 ;linear address	424	mov eax,0x800000 ;linear address
425	mov ebx,0x400000 shr 12 ;size in pages (4Mb)	425	mov ebx,0x400000 shr 12 ;size in pages (4Mb)
426	mov ecx,0x800000 ;physical address	426	mov ecx,0x800000 ;physical address
427	jmp .end_first_block	427	jmp .end_first_block
428	.less_memory:	428	.less_memory:
429	mov eax,0x980000 ;linear address	429	mov eax,0x980000 ;linear address
430	mov ebx,0x280000 shr 12 ;size in pages (2.5Mb)	430	mov ebx,0x280000 shr 12 ;size in pages (2.5Mb)
431	mov ecx,0x980000 ;physical address	431	mov ecx,0x980000 ;physical address
432	.end_first_block:	432	.end_first_block:
433	call MEM_Add_Heap ;nobody can lock mutex yet	433	call MEM_Add_Heap ;nobody can lock mutex yet
434		434
435	call create_general_page_table	435	call create_general_page_table
436	;add 0x1000000(0xd80000)-end_of_memory area	436	;add 0x1000000(0xd80000)-end_of_memory area
437	mov eax,second_base_address	437	mov eax,second_base_address
438	mov ebx,[0xfe8c]	438	mov ebx,[0xfe8c]
439	mov ecx,[0xfe84]	439	mov ecx,[0xfe84]
440	sub ebx,ecx	440	sub ebx,ecx
441	shr ebx,12	441	shr ebx,12
442	add eax,ecx	442	add eax,ecx
443	call MEM_Add_Heap	443	call MEM_Add_Heap
444	;init physical memory manager.	444	;init physical memory manager.
445	call Init_Physical_Memory_Manager	445	call Init_Physical_Memory_Manager
446		446
447	mov dword [0xfe80],0x80000000 ;0x800000	447	mov dword [0xfe80],0x80000000 ;0x800000
448		448
449	;Set base of graphic segment to linear address of LFB	449	;Set base of graphic segment to linear address of LFB
450	mov eax,[0xfe80] ; set for gs	450	mov eax,[0xfe80] ; set for gs
451	mov [graph_data_l+2],ax	451	mov [graph_data_l+2],ax
452	shr eax,16	452	shr eax,16
453	mov [graph_data_l+4],al	453	mov [graph_data_l+4],al
454	mov [graph_data_l+7],ah	454	mov [graph_data_l+7],ah
455		455
456	; READ RAMDISK IMAGE FROM HD	456	; READ RAMDISK IMAGE FROM HD
457		457
458	;!!!!!!!!!!!!!!!!!!!!!!!	458	;!!!!!!!!!!!!!!!!!!!!!!!
459	include 'boot/rdload.inc'	459	include 'boot/rdload.inc'
460	;!!!!!!!!!!!!!!!!!!!!!!!	460	;!!!!!!!!!!!!!!!!!!!!!!!
461	; mov [dma_hdd],1	461	; mov [dma_hdd],1
462	; CALCULATE FAT CHAIN FOR RAMDISK	462	; CALCULATE FAT CHAIN FOR RAMDISK
463		463
464	call calculatefatchain	464	call calculatefatchain
465		465
466	; LOAD VMODE DRIVER	466	; LOAD VMODE DRIVER
467		467
468	;!!!!!!!!!!!!!!!!!!!!!!!	468	;!!!!!!!!!!!!!!!!!!!!!!!
469	include 'vmodeld.inc'	469	include 'vmodeld.inc'
470	;!!!!!!!!!!!!!!!!!!!!!!!	470	;!!!!!!!!!!!!!!!!!!!!!!!
471		471
472	; LOAD FONTS I and II	472	; LOAD FONTS I and II
473		473
474	mov [0x3000],dword 1	474	mov [0x3000],dword 1
475	mov [0x3004],dword 1	475	mov [0x3004],dword 1
476	mov [0x3010],dword 0x3020	476	mov [0x3010],dword 0x3020
477		477
478	mov eax,char	478	mov eax,char
479	mov esi,12	479	mov esi,12
480	xor ebx,ebx	480	xor ebx,ebx
481	mov ecx,2560;26000	481	mov ecx,2560;26000
482	mov edx,0x3F600;0x37000	482	mov edx,0x3F600;0x37000
483	call fileread	483	call fileread
484		484
485	mov eax,char2	485	mov eax,char2
486	mov esi,12	486	mov esi,12
487	xor ebx,ebx	487	xor ebx,ebx
488	mov ecx,2560;26000	488	mov ecx,2560;26000
489	mov edx,0x3EC00;0x30000	489	mov edx,0x3EC00;0x30000
490	call fileread	490	call fileread
491		491
492	mov esi,boot_fonts	492	mov esi,boot_fonts
493	call boot_log	493	call boot_log
494		494
495	; PRINT AMOUNT OF MEMORY	495	; PRINT AMOUNT OF MEMORY
496	mov esi, boot_memdetect	496	mov esi, boot_memdetect
497	call boot_log	497	call boot_log
498		498
499	movzx ecx, word [boot_y]	499	movzx ecx, word [boot_y]
500	or ecx, (10+29*6) shl 16 ; "Determining amount of memory"	500	or ecx, (10+29*6) shl 16 ; "Determining amount of memory"

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(root)/kernel/trunk/kernel.asm – Rev 149 → 150