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3dd1f86eac
kolibrios/kernel/trunk/kernel.asm
Marat Zakiyanov (Mario79) 3dd1f86eac Some reorganization of code: 
1) Grouping of code working with IDE drives
2) Moving messages about the SVN revision and CPU counter to the beginning of the log of the message board.

git-svn-id: svn://kolibrios.org@4575 a494cfbc-eb01-0410-851d-a64ba20cac60
2014-02-18 23:01:02 +00:00

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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; Copyright (C) KolibriOS team 2004-2013. All rights reserved.
;; PROGRAMMING:
;; Ivan Poddubny
;; Marat Zakiyanov (Mario79)
;; VaStaNi
;; Trans
;; Mihail Semenyako (mike.dld)
;; Sergey Kuzmin (Wildwest)
;; Andrey Halyavin (halyavin)
;; Mihail Lisovin (Mihasik)
;; Andrey Ignatiev (andrew_programmer)
;; NoName
;; Evgeny Grechnikov (Diamond)
;; Iliya Mihailov (Ghost)
;; Sergey Semyonov (Serge)
;; Johnny_B
;; SPraid (simba)
;; Hidnplayr
;; Alexey Teplov (<Lrz>)
;; Rus
;; Nable
;; shurf
;; Alver
;; Maxis
;; Galkov
;; CleverMouse
;; tsdima
;; turbanoff
;; Asper
;; art_zh
;;
;; Data in this file was originally part of MenuetOS project which is
;; distributed under the terms of GNU GPL. It is modified and redistributed as
;; part of KolibriOS project under the terms of GNU GPL.
;;
;; Copyright (C) MenuetOS 2000-2004 Ville Mikael Turjanmaa
;; PROGRAMMING:
;;
;; Ville Mikael Turjanmaa, villemt@itu.jyu.fi
;; - main os coding/design
;; Jan-Michael Brummer, BUZZ2@gmx.de
;; Felix Kaiser, info@felix-kaiser.de
;; Paolo Minazzi, paolo.minazzi@inwind.it
;; quickcode@mail.ru
;; Alexey, kgaz@crosswinds.net
;; Juan M. Caravaca, bitrider@wanadoo.es
;; kristol@nic.fi
;; Mike Hibbett, mikeh@oceanfree.net
;; Lasse Kuusijarvi, kuusijar@lut.fi
;; Jarek Pelczar, jarekp3@wp.pl
;;
;; KolibriOS is distributed in the hope that it will be useful, but WITHOUT ANY
;; WARRANTY. No author or distributor accepts responsibility to anyone for the
;; consequences of using it or for whether it serves any particular purpose or
;; works at all, unless he says so in writing. Refer to the GNU General Public
;; License (the "GPL") for full details.
;
;; Everyone is granted permission to copy, modify and redistribute KolibriOS,
;; but only under the conditions described in the GPL. A copy of this license
;; is supposed to have been given to you along with KolibriOS so you can know
;; your rights and responsibilities. It should be in a file named COPYING.
;; Among other things, the copyright notice and this notice must be preserved
;; on all copies.
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
format binary as "mnt"
include 'macros.inc'
include 'struct.inc'
$Revision$
USE_COM_IRQ equ 1 ; make irq 3 and irq 4 available for PCI devices
VESA_1_2_VIDEO equ 0 ; enable vesa 1.2 bank switch functions
; Enabling the next line will enable serial output console
;debug_com_base equ 0x3f8 ; 0x3f8 is com1, 0x2f8 is com2, 0x3e8 is com3, 0x2e8 is com4, no irq's are used
include "proc32.inc"
include "kglobals.inc"
include "lang.inc"
include "encoding.inc"
include "const.inc"
iglobal
; The following variable, if equal to 1, duplicates debug output to the screen.
debug_direct_print db 0
; Start the first app (LAUNCHER) after kernel is loaded? (1=yes, 2 or 0=no)
launcher_start db 1
endg
max_processes equ 255
tss_step equ (128+8192) ; tss & i/o - 65535 ports, * 256=557056*4
os_stack equ (os_data_l-gdts) ; GDTs
os_code equ (os_code_l-gdts)
graph_data equ (3+graph_data_l-gdts)
tss0 equ (tss0_l-gdts)
app_code equ (3+app_code_l-gdts)
app_data equ (3+app_data_l-gdts)
app_tls equ (3+tls_data_l-gdts)
pci_code_sel equ (pci_code_32-gdts)
pci_data_sel equ (pci_data_32-gdts)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; Included files:
;;
;; Kernel16.inc
;; - Booteng.inc English text for bootup
;; - Bootcode.inc Hardware setup
;; - Pci16.inc PCI functions
;;
;; Kernel32.inc
;; - Sys32.inc Process management
;; - Shutdown.inc Shutdown and restart
;; - Fat32.inc Read / write hd
;; - Vesa12.inc Vesa 1.2 driver
;; - Vesa20.inc Vesa 2.0 driver
;; - Vga.inc VGA driver
;; - Stack.inc Network interface
;; - Mouse.inc Mouse pointer
;; - Scincode.inc Window skinning
;; - Pci32.inc PCI functions
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; 16 BIT ENTRY FROM BOOTSECTOR ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
use16
org 0x0
jmp start_of_code
if lang eq sp
include "kernelsp.inc" ; spanish kernel messages
else if lang eq et
version db 'Kolibri OS versioon 0.7.7.0+ ',13,10,13,10,0
else
version db 'Kolibri OS version 0.7.7.0+ ',13,10,13,10,0
end if
include "boot/bootstr.inc" ; language-independent boot messages
include "boot/preboot.inc"
if lang eq ge
include "boot/bootge.inc" ; german system boot messages
else if lang eq sp
include "boot/bootsp.inc" ; spanish system boot messages
else if lang eq ru
include "boot/bootru.inc" ; russian system boot messages
include "boot/ru.inc" ; Russian font
else if lang eq et
include "boot/bootet.inc" ; estonian system boot messages
include "boot/et.inc" ; Estonian font
else
include "boot/booten.inc" ; english system boot messages
end if
include "boot/bootcode.inc" ; 16 bit system boot code
include "bus/pci/pci16.inc"
include "detect/biosdisk.inc"
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; SWITCH TO 32 BIT PROTECTED MODE ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; CR0 Flags - Protected mode and Paging
mov ecx, CR0_PE
; Enabling 32 bit protected mode
sidt [cs:old_ints_h]
cli ; disable all irqs
cld
mov al, 255 ; mask all irqs
out 0xa1, al
out 0x21, al
l.5:
in al, 0x64 ; Enable A20
test al, 2
jnz l.5
mov al, 0xD1
out 0x64, al
l.6:
in al, 0x64
test al, 2
jnz l.6
mov al, 0xDF
out 0x60, al
l.7:
in al, 0x64
test al, 2
jnz l.7
mov al, 0xFF
out 0x64, al
lgdt [cs:tmp_gdt] ; Load GDT
mov eax, cr0 ; protected mode
or eax, ecx
and eax, 10011111b *65536*256 + 0xffffff ; caching enabled
mov cr0, eax
jmp pword os_code:B32 ; jmp to enable 32 bit mode
align 8
tmp_gdt:
dw 23
dd tmp_gdt+0x10000
dw 0
dw 0xffff
dw 0x0000
db 0x00
dw 11011111b *256 +10011010b
db 0x00
dw 0xffff
dw 0x0000
db 0x00
dw 11011111b *256 +10010010b
db 0x00
include "data16.inc"
if ~ lang eq sp
diff16 "end of bootcode",0,$+0x10000
end if
use32
org $+0x10000
align 4
B32:
mov ax, os_stack ; Selector for os
mov ds, ax
mov es, ax
mov fs, ax
mov gs, ax
mov ss, ax
mov esp, 0x006CC00 ; Set stack
; CLEAR 0x280000 - HEAP_BASE
xor eax, eax
mov edi, CLEAN_ZONE
mov ecx, (HEAP_BASE-OS_BASE-CLEAN_ZONE) / 4
cld
rep stosd
; CLEAR KERNEL UNDEFINED GLOBALS
mov edi, endofcode-OS_BASE
mov ecx, 0x90000
sub ecx, edi
shr ecx, 2
rep stosd
; SAVE & CLEAR 0-0xffff
mov edi, 0x1000
mov ecx, 0x8000 / 4
rep stosd
mov edi, 0xa000
mov ecx, 0x6000 / 4
rep stosd
call test_cpu
bts [cpu_caps-OS_BASE], CAPS_TSC ;force use rdtsc
call check_acpi
call init_BIOS32
; MEMORY MODEL
call mem_test
call init_mem
call init_page_map
; ENABLE PAGING
mov eax, sys_pgdir-OS_BASE
mov cr3, eax
mov eax, cr0
or eax, CR0_PG+CR0_WP
mov cr0, eax
lgdt [gdts]
jmp pword os_code:high_code
align 4
bios32_entry dd ?
tmp_page_tabs dd ?
use16
org $-0x10000
include "boot/shutdown.inc" ; shutdown or restart
org $+0x10000
use32
__DEBUG__ fix 1
__DEBUG_LEVEL__ fix 1
include 'init.inc'
org OS_BASE+$
include 'fdo.inc'
align 4
high_code:
mov ax, os_stack
mov bx, app_data
mov cx, app_tls
mov ss, ax
add esp, OS_BASE
mov ds, bx
mov es, bx
mov fs, cx
mov gs, bx
bt [cpu_caps], CAPS_PGE
jnc @F
or dword [sys_pgdir+(OS_BASE shr 20)], PG_GLOBAL
mov ebx, cr4
or ebx, CR4_PGE
mov cr4, ebx
@@:
xor eax, eax
mov dword [sys_pgdir], eax
mov dword [sys_pgdir+4], eax
mov eax, cr3
mov cr3, eax ; flush TLB
mov ecx, pg_data.mutex
call mutex_init
mov ecx, disk_list_mutex
call mutex_init
mov ecx, keyboard_list_mutex
call mutex_init
mov ecx, unpack_mutex
call mutex_init
mov ecx, application_table_mutex
call mutex_init
mov ecx, ide_mutex
call mutex_init
mov ecx, ide_channel1_mutex
call mutex_init
mov ecx, ide_channel2_mutex
call mutex_init
;-----------------------------------------------------------------------------
; SAVE REAL MODE VARIABLES
;-----------------------------------------------------------------------------
save_variables_IDE_controller:
xor eax, eax
mov ax, [BOOT_VARS + BOOT_IDE_INTERR_16]
mov [IDE_Interrupt], ax
;--------------------------------------
mov ax, [BOOT_VARS + BOOT_IDE_PI_16]
mov [IDEContrProgrammingInterface], ax
;--------------------------------------
mov ax, [BOOT_VARS + BOOT_IDE_BASE_ADDR]
mov [IDEContrRegsBaseAddr], ax
;--------------------------------------
mov ax, [BOOT_VARS + BOOT_IDE_BAR0_16]
cmp ax, 0
je @f
cmp ax, 1
jne .no_PATA_BAR0
@@:
mov ax, 0x1F0
jmp @f
.no_PATA_BAR0:
and ax, 0xFFFC
@@:
mov [StandardATABases], ax
mov [hd_address_table], eax
mov [hd_address_table+8], eax
mov [IDE_BAR0_val], ax
;--------------------------------------
mov ax, [BOOT_VARS + BOOT_IDE_BAR1_16]
cmp ax, 0
je @f
cmp ax, 1
jne .no_PATA_BAR1
@@:
mov ax, 0x3F4
jmp @f
.no_PATA_BAR1:
and ax, 0xFFFC
@@:
mov [IDE_BAR1_val], ax
;--------------------------------------
mov ax, [BOOT_VARS + BOOT_IDE_BAR2_16]
cmp ax, 0
je @f
cmp ax, 1
jne .no_PATA_BAR2
@@:
mov ax, 0x170
jmp @f
.no_PATA_BAR2:
and ax, 0xFFFC
@@:
mov [StandardATABases+2], ax
mov [hd_address_table+16], eax
mov [hd_address_table+24], eax
mov [IDE_BAR2_val], ax
;--------------------------------------
mov ax, [BOOT_VARS + BOOT_IDE_BAR3_16]
cmp ax, 0
je @f
cmp ax, 1
jne .no_PATA_BAR3
@@:
mov ax, 0x374
jmp @f
.no_PATA_BAR3:
and ax, 0xFFFC
@@:
mov [IDE_BAR3_val], ax
; --------------- APM ---------------------
; init selectors
mov ebx, [BOOT_VARS+BOOT_APM_ENTRY] ; offset of APM entry point
movzx eax, word [BOOT_VARS+BOOT_APM_CODE_32] ; real-mode segment base address of
; protected-mode 32-bit code segment
movzx ecx, word [BOOT_VARS+BOOT_APM_CODE_16]; real-mode segment base address of
; protected-mode 16-bit code segment
movzx edx, word [BOOT_VARS+BOOT_APM_DATA_16]; real-mode segment base address of
; protected-mode 16-bit data segment
shl eax, 4
mov [dword apm_code_32 + 2], ax
shr eax, 16
mov [dword apm_code_32 + 4], al
shl ecx, 4
mov [dword apm_code_16 + 2], cx
shr ecx, 16
mov [dword apm_code_16 + 4], cl
shl edx, 4
mov [dword apm_data_16 + 2], dx
shr edx, 16
mov [dword apm_data_16 + 4], dl
mov dword[apm_entry], ebx
mov word [apm_entry + 4], apm_code_32 - gdts
mov eax, [BOOT_VARS + BOOT_APM_VERSION] ; version & flags
mov [apm_vf], eax
; -----------------------------------------
mov al, [BOOT_VARS+BOOT_DMA] ; DMA access
mov [allow_dma_access], al
movzx eax, byte [BOOT_VARS+BOOT_BPP] ; bpp
mov [_display.bpp], eax
mov [_display.vrefresh], 60
mov al, [BOOT_VARS+BOOT_DEBUG_PRINT] ; If nonzero, duplicates debug output to the screen
mov [debug_direct_print], al
mov al, [BOOT_VARS+BOOT_LAUNCHER_START] ; Start the first app (LAUNCHER) after kernel is loaded?
mov [launcher_start], al
movzx eax, word [BOOT_VARS+BOOT_X_RES]; X max
mov [_display.width], eax
mov [display_width_standard], eax
dec eax
mov [Screen_Max_X], eax
mov [screen_workarea.right], eax
movzx eax, word [BOOT_VARS+BOOT_Y_RES]; Y max
mov [_display.height], eax
mov [display_height_standard], eax
dec eax
mov [Screen_Max_Y], eax
mov [screen_workarea.bottom], eax
movzx eax, word [BOOT_VARS+BOOT_VESA_MODE] ; screen mode
mov dword [SCR_MODE], eax
; mov eax, [BOOT_VAR+0x9014] ; Vesa 1.2 bnk sw add
; mov [BANK_SWITCH], eax
mov eax, 640 *4 ; Bytes PerScanLine
cmp [SCR_MODE], word 0x13 ; 320x200
je @f
cmp [SCR_MODE], word 0x12 ; VGA 640x480
je @f
movzx eax, word[BOOT_VARS+BOOT_PITCH] ; for other modes
@@:
mov [_display.pitch], eax
mov eax, [_display.width]
mul [_display.height]
mov [_WinMapSize], eax
call calculate_fast_getting_offset_for_WinMapAddress
; for Qemu or non standart video cards
; Unfortunately [BytesPerScanLine] does not always
; equal to [_display.width] * [ScreenBPP] / 8
call calculate_fast_getting_offset_for_LFB
mov esi, BOOT_VARS+0x9080
movzx ecx, byte [esi-1]
mov [NumBiosDisks], ecx
mov edi, BiosDisksData
rep movsd
; GRAPHICS ADDRESSES
mov eax, [BOOT_VARS+BOOT_LFB]
mov [LFBAddress], eax
cmp [SCR_MODE], word 0100000000000000b
jge setvesa20
cmp [SCR_MODE], word 0x13 ; EGA 320*200 256 colors
je v20ga32
jmp v20ga24
setvesa20:
mov [PUTPIXEL], dword Vesa20_putpixel24 ; Vesa 2.0
mov [GETPIXEL], dword Vesa20_getpixel24
cmp byte [_display.bpp], 24
jz v20ga24
v20ga32:
mov [PUTPIXEL], dword Vesa20_putpixel32
mov [GETPIXEL], dword Vesa20_getpixel32
jmp no_mode_0x12
v20ga24:
cmp [SCR_MODE], word 0x12 ; 16 C VGA 640x480
jne no_mode_0x12
mov [PUTPIXEL], dword VGA_putpixel
mov [GETPIXEL], dword Vesa20_getpixel32
no_mode_0x12:
mov [MOUSE_PICTURE], dword mousepointer
mov [_display.check_mouse], check_mouse_area_for_putpixel
mov [_display.check_m_pixel], check_mouse_area_for_getpixel
; -------- Fast System Call init ----------
; Intel SYSENTER/SYSEXIT (AMD CPU support it too)
bt [cpu_caps], CAPS_SEP
jnc .SEnP ; SysEnter not Present
xor edx, edx
mov ecx, MSR_SYSENTER_CS
mov eax, os_code
wrmsr
mov ecx, MSR_SYSENTER_ESP
; mov eax, sysenter_stack ; Check it
xor eax, eax
wrmsr
mov ecx, MSR_SYSENTER_EIP
mov eax, sysenter_entry
wrmsr
.SEnP:
; AMD SYSCALL/SYSRET
cmp byte[cpu_vendor], 'A'
jne .noSYSCALL
mov eax, 0x80000001
cpuid
test edx, 0x800 ; bit_11 - SYSCALL/SYSRET support
jz .noSYSCALL
mov ecx, MSR_AMD_EFER
rdmsr
or eax, 1 ; bit_0 - System Call Extension (SCE)
wrmsr
; !!!! It`s dirty hack, fix it !!!
; Bits of EDX :
; Bit 31–16 During the SYSRET instruction, this field is copied into the CS register
; and the contents of this field, plus 8, are copied into the SS register.
; Bit 15–0 During the SYSCALL instruction, this field is copied into the CS register
; and the contents of this field, plus 8, are copied into the SS register.
; mov edx, (os_code + 16) * 65536 + os_code
mov edx, 0x1B0008
mov eax, syscall_entry
mov ecx, MSR_AMD_STAR
wrmsr
.noSYSCALL:
; -----------------------------------------
stdcall alloc_page
stdcall map_page, tss-0xF80, eax, PG_SW
stdcall alloc_page
stdcall map_page, tss+0x80, eax, PG_SW
stdcall alloc_page
stdcall map_page, tss+0x1080, eax, PG_SW
; LOAD IDT
call build_interrupt_table ;lidt is executed
;lidt [idtreg]
call init_kernel_heap
stdcall kernel_alloc, (RING0_STACK_SIZE+512) * 2
mov [os_stack_seg], eax
lea esp, [eax+RING0_STACK_SIZE]
mov [tss._ss0], os_stack
mov [tss._esp0], esp
mov [tss._esp], esp
mov [tss._cs], os_code
mov [tss._ss], os_stack
mov [tss._ds], app_data
mov [tss._es], app_data
mov [tss._fs], app_data
mov [tss._gs], app_data
mov [tss._io], 128
;Add IO access table - bit array of permitted ports
mov edi, tss._io_map_0
xor eax, eax
not eax
mov ecx, 8192/4
rep stosd ; access to 4096*8=65536 ports
mov ax, tss0
ltr ax
mov [LFBSize], 0xC00000
call init_LFB
call init_fpu
call init_malloc
stdcall alloc_kernel_space, 0x51000
mov [default_io_map], eax
add eax, 0x2000
mov [ipc_tmp], eax
mov ebx, 0x1000
add eax, 0x40000
mov [proc_mem_map], eax
add eax, 0x8000
mov [proc_mem_pdir], eax
add eax, ebx
mov [proc_mem_tab], eax
add eax, ebx
mov [tmp_task_pdir], eax
add eax, ebx
mov [tmp_task_ptab], eax
add eax, ebx
mov [ipc_pdir], eax
add eax, ebx
mov [ipc_ptab], eax
stdcall kernel_alloc, (unpack.LZMA_BASE_SIZE+(unpack.LZMA_LIT_SIZE shl \
(unpack.lc+unpack.lp)))*4
mov [unpack.p], eax
call init_events
mov eax, srv.fd-SRV.fd
mov [srv.fd], eax
mov [srv.bk], eax
;Set base of graphic segment to linear address of LFB
mov eax, [LFBAddress] ; set for gs
mov [graph_data_l+2], ax
shr eax, 16
mov [graph_data_l+4], al
mov [graph_data_l+7], ah
stdcall kernel_alloc, [_WinMapSize]
mov [_WinMapAddress], eax
xor eax, eax
inc eax
; set background
mov [BgrDrawMode], eax
mov [BgrDataWidth], eax
mov [BgrDataHeight], eax
mov [mem_BACKGROUND], 4
mov [img_background], static_background_data
; set clipboard
xor eax, eax
mov [clipboard_slots], eax
mov [clipboard_write_lock], eax
stdcall kernel_alloc, 4096
test eax, eax
jnz @f
dec eax
@@:
mov [clipboard_main_list], eax
; SET UP OS TASK
mov esi, boot_setostask
call boot_log
mov edx, SLOT_BASE+256
mov ebx, [os_stack_seg]
add ebx, 0x2000
call setup_os_slot
mov dword [edx], 'IDLE'
sub [edx+APPDATA.saved_esp], 4
mov eax, [edx+APPDATA.saved_esp]
mov dword [eax], idle_thread
mov ecx, IDLE_PRIORITY
call scheduler_add_thread
mov edx, SLOT_BASE+256*2
mov ebx, [os_stack_seg]
call setup_os_slot
mov dword [edx], 'OS'
xor ecx, ecx
call scheduler_add_thread
mov dword [CURRENT_TASK], 2
mov dword [TASK_COUNT], 2
mov dword [current_slot], SLOT_BASE + 256*2
mov dword [TASK_BASE], CURRENT_TASK + 32*2
; REDIRECT ALL IRQ'S TO INT'S 0x20-0x2f
mov esi, boot_initirq
call boot_log
call init_irqs
mov esi, boot_picinit
call boot_log
call PIC_init
mov esi, boot_v86machine
call boot_log
; Initialize system V86 machine
call init_sys_v86
mov esi, boot_inittimer
call boot_log
; Initialize system timer (IRQ0)
call PIT_init
; Register ramdisk file system
mov esi, boot_initramdisk
call boot_log
call ramdisk_init
mov esi, boot_initapic
call boot_log
; Try to Initialize APIC
call APIC_init
mov esi, boot_enableirq
call boot_log
; Enable timer IRQ (IRQ0) and co-processor IRQ (IRQ13)
; they are used: when partitions are scanned, hd_read relies on timer
call unmask_timer
stdcall enable_irq, 2 ; @#$%! PIC
stdcall enable_irq, 13 ; co-processor
;-----------------------------------------------------------------------------
; show SVN version of kernel on the message board
;-----------------------------------------------------------------------------
mov eax, [version_inf.rev]
DEBUGF 1, "K : kernel SVN r%d\n", eax
;-----------------------------------------------------------------------------
; show CPU count on the message board
;-----------------------------------------------------------------------------
mov eax, [cpu_count]
test eax, eax
jnz @F
mov al, 1 ; at least one CPU
@@:
DEBUGF 1, "K : %d CPU detected\n", eax
;-----------------------------------------------------------------------------
; detect Floppy drives
;-----------------------------------------------------------------------------
mov esi, boot_detectfloppy
call boot_log
include 'detect/dev_fd.inc'
;-----------------------------------------------------------------------------
; START of initialisation IDE ATA code
;-----------------------------------------------------------------------------
cmp [IDEContrProgrammingInterface], 0
je @f
mov esi, boot_disabling_ide
call boot_log
;--------------------------------------
; Disable IDE interrupts, because the search
; for IDE partitions is in the PIO mode.
;--------------------------------------
.disable_IDE_interrupt:
; Disable interrupts in IDE controller for PIO
mov al, 2
mov dx, [IDE_BAR1_val] ;0x3F4
add dx, 2 ;0x3F6
out dx, al
mov dx, [IDE_BAR3_val] ;0x374
add dx, 2 ;0x376
out dx, al
@@:
; show base variables of IDE controller
DEBUGF 1, "K : BAR0 %x \n", [IDE_BAR0_val]:4
DEBUGF 1, "K : BAR1 %x \n", [IDE_BAR1_val]:4
DEBUGF 1, "K : BAR2 %x \n", [IDE_BAR2_val]:4
DEBUGF 1, "K : BAR3 %x \n", [IDE_BAR3_val]:4
DEBUGF 1, "K : BAR4 %x \n", [IDEContrRegsBaseAddr]:4
DEBUGF 1, "K : IDEContrProgrammingInterface %x \n", [IDEContrProgrammingInterface]:4
DEBUGF 1, "K : IDE_Interrupt %x \n", [IDE_Interrupt]:4
;-----------------------------------------------------------------------------
mov esi, boot_detecthdcd
call boot_log
include 'detect/dev_hdcd.inc'
mov esi, boot_getcache
call boot_log
include 'detect/getcache.inc'
mov esi, boot_detectpart
call boot_log
include 'detect/sear_par.inc'
;-----------------------------------------------------------------------------
mov dx, [IDEContrRegsBaseAddr]
; test whether it is our interrupt?
add dx, 2
in al, dx
test al, 100b
jz @f
; clear Bus Master IDE Status register
; clear Interrupt bit
out dx, al
@@:
add dx, 8
; test whether it is our interrupt?
in al, dx
test al, 100b
jz @f
; clear Bus Master IDE Status register
; clear Interrupt bit
out dx, al
@@:
; read status register and remove the interrupt request
mov dx, [IDE_BAR0_val] ;0x1F0
add dx, 0x7 ;0x1F7
in al, dx
mov dx, [IDE_BAR2_val] ;0x170
add dx, 0x7 ;0x177
in al, dx
;-----------------------------------------------------------------------------
push eax edx
mov dx, [IDEContrRegsBaseAddr]
xor eax, eax
add dx, 2
in al, dx
DEBUGF 1, "K : Primary Bus Master IDE Status Register %x\n", eax
add dx, 8
in al, dx
DEBUGF 1, "K : Secondary Bus Master IDE Status Register %x\n", eax
pop edx eax
cmp [IDEContrRegsBaseAddr], 0
setnz [dma_hdd]
cmp [IDEContrProgrammingInterface], 0
je set_interrupts_for_IDE_controllers.continue
;-----------------------------------------------------------------------------
; set interrupts for IDE Controller
;-----------------------------------------------------------------------------
mov esi, boot_set_int_IDE
call boot_log
set_interrupts_for_IDE_controllers:
mov ax, [IDEContrProgrammingInterface]
cmp ax, 0x0180
je .pata_ide
cmp ax, 0x018a
jne .sata_ide
;--------------------------------------
.pata_ide:
cmp [IDEContrRegsBaseAddr], 0
je .end_set_interrupts
stdcall attach_int_handler, 14, IDE_irq_14_handler, 0
DEBUGF 1, "K : Set IDE IRQ14 return code %x\n", eax
stdcall attach_int_handler, 15, IDE_irq_15_handler, 0
DEBUGF 1, "K : Set IDE IRQ15 return code %x\n", eax
jmp .enable_IDE_interrupt
;--------------------------------------
.sata_ide:
cmp ax, 0x0185
je .sata_ide_1
cmp ax, 0x018f
jne .end_set_interrupts
;--------------------------------------
.sata_ide_1:
cmp [IDEContrRegsBaseAddr], 0
je .end_set_interrupts
mov ax, [IDE_Interrupt]
movzx eax, al
stdcall attach_int_handler, eax, IDE_common_irq_handler, 0
DEBUGF 1, "K : Set IDE IRQ%d return code %x\n", [IDE_Interrupt]:1, eax
;--------------------------------------
.enable_IDE_interrupt:
mov esi, boot_enabling_ide
call boot_log
; Enable interrupts in IDE controller for DMA
mov al, 0
mov ah, [DRIVE_DATA+1]
test ah, 10100000b
jz @f
DEBUGF 1, "K : IDE CH1 PIO, because ATAPI drive present\n"
jmp .ch2_check
@@:
mov dx, [IDE_BAR1_val] ;0x3F4
add dx, 2 ;0x3F6
out dx, al
DEBUGF 1, "K : IDE CH1 DMA enabled\n"
.ch2_check:
test ah, 1010b
jz @f
DEBUGF 1, "K : IDE CH2 PIO, because ATAPI drive present\n"
jmp .end_set_interrupts
@@:
mov dx, [IDE_BAR3_val] ;0x374
add dx, 2 ;0x376
out dx, al
DEBUGF 1, "K : IDE CH2 DMA enabled\n"
;--------------------------------------
.end_set_interrupts:
;-----------------------------------------------------------------------------
cmp [dma_hdd], 0
je .print_pio
.print_dma:
DEBUGF 1, "K : IDE DMA mode\n"
jmp .continue
.print_pio:
DEBUGF 1, "K : IDE PIO mode\n"
.continue:
;-----------------------------------------------------------------------------
; END of initialisation IDE ATA code
;-----------------------------------------------------------------------------
mov esi, boot_init_sys
call boot_log
call Parser_params
if ~ defined extended_primary_loader
; ramdisk image should be loaded by extended primary loader if it exists
; READ RAMDISK IMAGE FROM HD
;!!!!!!!!!!!!!!!!!!!!!!!
include 'boot/rdload.inc'
;!!!!!!!!!!!!!!!!!!!!!!!
end if
if 0
mov ax, [OS_BASE+0x10000+bx_from_load]
cmp ax, 'r1'; if using not ram disk, then load librares and parameters {SPraid.simba}
je no_lib_load
mov esi, boot_loadlibs
call boot_log
; LOADING LIBRARES
stdcall dll.Load, @IMPORT ; loading librares for kernel (.obj files)
call load_file_parse_table ; prepare file parse table
call set_kernel_conf ; configure devices and gui
no_lib_load:
end if
; Display APIC status
mov esi, boot_APIC_found
cmp [irq_mode], IRQ_APIC
je @f
mov esi, boot_APIC_nfound
@@:
call boot_log
; PRINT AMOUNT OF MEMORY
mov esi, boot_memdetect
call boot_log
movzx ecx, word [boot_y]
if lang eq ru
or ecx, (10+30*6) shl 16
else if lang eq sp
or ecx, (10+33*6) shl 16
else
or ecx, (10+29*6) shl 16
end if
sub ecx, 10
mov edx, 0xFFFFFF
mov ebx, [MEM_AMOUNT]
shr ebx, 20
xor edi, edi
mov eax, 0x00040000
inc edi
call display_number_force
; BUILD SCHEDULER
; call build_scheduler; sys32.inc
; mov esi, boot_devices
; call boot_log
mov [pci_access_enabled], 1
call pci_enum
include "detect/vortex86.inc" ; Vortex86 SoC detection code
stdcall load_driver, szVidintel
call usb_init
; SET PRELIMINARY WINDOW STACK AND POSITIONS
mov esi, boot_windefs
call boot_log
call set_window_defaults
; SET BACKGROUND DEFAULTS
mov esi, boot_bgr
call boot_log
call init_background
call calculatebackground
; RESERVE SYSTEM IRQ'S JA PORT'S
mov esi, boot_resirqports
call boot_log
call reserve_irqs_ports
call init_display
mov eax, [def_cursor]
mov [SLOT_BASE+APPDATA.cursor+256], eax
mov [SLOT_BASE+APPDATA.cursor+256*2], eax
; PRINT CPU FREQUENCY
mov esi, boot_cpufreq
call boot_log
cli ;FIXME check IF
rdtsc
mov ecx, eax
mov esi, 250 ; wait 1/4 a second
call delay_ms
rdtsc
sub eax, ecx
xor edx, edx
shld edx, eax, 2
shl eax, 2
mov dword [cpu_freq], eax
mov dword [cpu_freq+4], edx
mov ebx, 1000000
div ebx
mov ebx, eax
movzx ecx, word [boot_y]
if lang eq ru
add ecx, (10+19*6) shl 16 - 10
else if lang eq sp
add ecx, (10+25*6) shl 16 - 10
else
add ecx, (10+17*6) shl 16 - 10
end if
mov edx, 0xFFFFFF
xor edi, edi
mov eax, 0x00040000
inc edi
call display_number_force
; SET VARIABLES
call set_variables
; STACK AND FDC
call stack_init
call fdc_init
; PALETTE FOR 320x200 and 640x480 16 col
cmp [SCR_MODE], word 0x12
jne no_pal_vga
mov esi, boot_pal_vga
call boot_log
call paletteVGA
no_pal_vga:
cmp [SCR_MODE], word 0x13
jne no_pal_ega
mov esi, boot_pal_ega
call boot_log
call palette320x200
no_pal_ega:
; LOAD DEFAULT SKIN
call load_default_skin
;protect io permission map
mov esi, [default_io_map]
stdcall map_page, esi, [SLOT_BASE+256+APPDATA.io_map], PG_MAP
add esi, 0x1000
stdcall map_page, esi, [SLOT_BASE+256+APPDATA.io_map+4], PG_MAP
stdcall map_page, tss._io_map_0, \
[SLOT_BASE+256+APPDATA.io_map], PG_MAP
stdcall map_page, tss._io_map_1, \
[SLOT_BASE+256+APPDATA.io_map+4], PG_MAP
; LOAD FIRST APPLICATION
cmp byte [launcher_start], 1 ; Check if starting LAUNCHER is selected on blue screen (1 = yes)
jnz first_app_found
cli
mov ebp, firstapp
call fs_execute_from_sysdir
test eax, eax
jns first_app_found
mov esi, boot_failed
call boot_log
mov eax, 0xDEADBEEF ; otherwise halt
hlt
first_app_found:
cli
; SET KEYBOARD PARAMETERS
mov al, 0xf6 ; reset keyboard, scan enabled
call kb_write
test ah, ah
jnz .no_keyboard
; wait until 8042 is ready
xor ecx, ecx
@@:
in al, 64h
and al, 00000010b
loopnz @b
iglobal
align 4
ps2_keyboard_functions:
dd .end - $
dd 0 ; no close
dd ps2_set_lights
.end:
endg
stdcall register_keyboard, ps2_keyboard_functions, 0
; mov al, 0xED ; Keyboard LEDs - only for testing!
; call kb_write
; 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 ]
stdcall attach_int_handler, 1, irq1, 0
DEBUGF 1, "K : IRQ1 error code %x\n", eax
.no_keyboard:
; Load PS/2 mouse driver
stdcall load_driver, szPS2MDriver
mov esi, boot_setmouse
call boot_log
call setmouse
; Setup serial output console (if enabled)
if defined debug_com_base
; reserve port so nobody else will use it
xor ebx, ebx
mov ecx, debug_com_base
mov edx, debug_com_base+7
call r_f_port_area
; enable Divisor latch
mov dx, debug_com_base+3
mov al, 1 shl 7
out dx, al
; Set speed to 115200 baud (max speed)
mov dx, debug_com_base
mov al, 0x01
out dx, al
mov dx, debug_com_base+1
mov al, 0x00
out dx, al
; No parity, 8bits words, one stop bit, dlab bit back to 0
mov dx, debug_com_base+3
mov al, 3
out dx, al
; disable interrupts
mov dx, debug_com_base+1
mov al, 0
out dx, al
; clear + enable fifo (64 bits)
mov dx, debug_com_base+2
mov al, 0x7 + 1 shl 5
out dx, al
end if
; START MULTITASKING
; A 'All set - press ESC to start' messages if need
if preboot_blogesc
mov esi, boot_tasking
call boot_log
.bll1:
in al, 0x60 ; wait for ESC key press
cmp al, 129
jne .bll1
end if
mov [timer_ticks_enable], 1 ; for cd driver
sti
; call change_task
jmp osloop
; Fly :)
include 'unpacker.inc'
align 4
boot_log:
pushad
mov ebx, 10*65536
mov bx, word [boot_y]
add [boot_y], dword 10
mov ecx, 0x80ffffff; ASCIIZ string with white color
xor edi, edi
mov edx, esi
inc edi
call dtext
mov [novesachecksum], 1000
call checkVga_N13
popad
ret
; in: edx -> APPDATA for OS/IDLE slot
; in: ebx = stack base
proc setup_os_slot
xor eax, eax
mov ecx, 256/4
mov edi, edx
rep stosd
mov eax, tss+0x80
call get_pg_addr
inc eax
mov [edx+APPDATA.io_map], eax
mov eax, tss+0x1080
call get_pg_addr
inc eax
mov [edx+APPDATA.io_map+4], eax
mov dword [edx+APPDATA.pl0_stack], ebx
lea edi, [ebx+0x2000-512]
mov dword [edx+APPDATA.fpu_state], edi
mov dword [edx+APPDATA.saved_esp0], edi
mov dword [edx+APPDATA.saved_esp], edi
mov dword [edx+APPDATA.terminate_protection], 1 ; make unkillable
mov esi, fpu_data
mov ecx, 512/4
cld
rep movsd
lea eax, [edx+APP_OBJ_OFFSET]
mov dword [edx+APPDATA.fd_obj], eax
mov dword [edx+APPDATA.bk_obj], eax
mov dword [edx+APPDATA.cur_dir], sysdir_path
mov [edx + APPDATA.dir_table], sys_pgdir - OS_BASE
mov eax, edx
shr eax, 3
add eax, CURRENT_TASK - (SLOT_BASE shr 3)
mov [eax+TASKDATA.wnd_number], dh
mov byte [eax+TASKDATA.pid], dh
ret
endp
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; ;
; MAIN OS LOOP START ;
; ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
align 32
osloop:
mov edx, osloop_has_work?
xor ecx, ecx
call Wait_events
xor eax, eax
xchg eax, [osloop_nonperiodic_work]
test eax, eax
jz .no_periodic
; call [draw_pointer]
call __sys_draw_pointer
call window_check_events
call mouse_check_events
call checkmisc
call checkVga_N13
.no_periodic:
call stack_handler
call check_fdd_motor_status
call check_ATAPI_device_event
call check_lights_state
call check_timers
jmp osloop
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; ;
; MAIN OS LOOP END ;
; ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
proc osloop_has_work?
cmp [osloop_nonperiodic_work], 0
jnz .yes
call stack_handler_has_work?
jnz .yes
call check_fdd_motor_status_has_work?
jnz .yes
call check_ATAPI_device_event_has_work?
jnz .yes
call check_lights_state_has_work?
jnz .yes
call check_timers_has_work?
jnz .yes
.no:
xor eax, eax
ret
.yes:
xor eax, eax
inc eax
ret
endp
proc wakeup_osloop
mov [osloop_nonperiodic_work], 1
ret
endp
uglobal
align 4
osloop_nonperiodic_work dd ?
endg
align 4
idle_thread:
sti
idle_loop:
hlt
jmp idle_loop
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; ;
; INCLUDED SYSTEM FILES ;
; ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
include "kernel32.inc"
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; ;
; KERNEL FUNCTIONS ;
; ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
reserve_irqs_ports:
; RESERVE PORTS
mov eax, RESERVED_PORTS
mov ecx, 1
mov [eax], dword 4
mov [eax+16], ecx
mov [eax+16+4], dword 0
mov [eax+16+8], dword 0x2D
mov [eax+32], ecx
mov [eax+32+4], dword 0x30
mov [eax+32+8], dword 0x4D
mov [eax+48], ecx
mov [eax+48+4], dword 0x50
mov [eax+48+8], dword 0xDF
mov [eax+64], ecx
mov [eax+64+4], dword 0xE5
mov [eax+64+8], dword 0xFF
ret
iglobal
process_number dd 0x2
endg
set_variables:
mov ecx, 0x16 ; flush port 0x60
.fl60:
in al, 0x60
loop .fl60
push eax
mov ax, [BOOT_VARS+BOOT_Y_RES]
shr ax, 1
shl eax, 16
mov ax, [BOOT_VARS+BOOT_X_RES]
shr ax, 1
mov [MOUSE_X], eax
call wakeup_osloop
xor eax, eax
mov [BTN_ADDR], dword BUTTON_INFO ; address of button list
mov byte [KEY_COUNT], al ; keyboard buffer
mov byte [BTN_COUNT], al ; button buffer
; mov [MOUSE_X],dword 100*65536+100 ; mouse x/y
pop eax
ret
align 4
;input eax=43,bl-byte of output, ecx - number of port
sys_outport:
mov edi, ecx ; separate flag for read / write
and ecx, 65535
mov eax, [RESERVED_PORTS]
test eax, eax
jnz .sopl8
inc eax
mov [esp+32], eax
ret
.sopl8:
mov edx, [TASK_BASE]
mov edx, [edx+0x4]
;and ecx,65535
;cld - set on interrupt 0x40
.sopl1:
mov esi, eax
shl esi, 4
add esi, RESERVED_PORTS
cmp edx, [esi+0]
jne .sopl2
cmp ecx, [esi+4]
jb .sopl2
cmp ecx, [esi+8]
jg .sopl2
.sopl3:
test edi, 0x80000000; read ?
jnz .sopl4
mov eax, ebx
mov dx, cx ; write
out dx, al
and [esp+32], dword 0
ret
.sopl2:
dec eax
jnz .sopl1
inc eax
mov [esp+32], eax
ret
.sopl4:
mov dx, cx ; read
in al, dx
and eax, 0xff
and [esp+32], dword 0
mov [esp+20], eax
ret
display_number:
;It is not optimization
mov eax, ebx
mov ebx, ecx
mov ecx, edx
mov edx, esi
mov esi, edi
; eax = print type, al=0 -> ebx is number
; al=1 -> ebx is pointer
; ah=0 -> display decimal
; ah=1 -> display hexadecimal
; ah=2 -> display binary
; eax bits 16-21 = number of digits to display (0-32)
; eax bits 22-31 = reserved
;
; ebx = number or pointer
; ecx = x shl 16 + y
; edx = color
xor edi, edi
display_number_force:
push eax
and eax, 0x3fffffff
cmp eax, 0xffff ; length > 0 ?
pop eax
jge cont_displ
ret
cont_displ:
push eax
and eax, 0x3fffffff
cmp eax, 61*0x10000 ; length <= 60 ?
pop eax
jb cont_displ2
ret
cont_displ2:
pushad
cmp al, 1 ; ecx is a pointer ?
jne displnl1
mov ebp, ebx
add ebp, 4
mov ebp, [ebp+std_application_base_address]
mov ebx, [ebx+std_application_base_address]
displnl1:
sub esp, 64
test ah, ah ; DECIMAL
jnz no_display_desnum
shr eax, 16
and eax, 0xC03f
; and eax,0x3f
push eax
and eax, 0x3f
mov edi, esp
add edi, 4+64-1
mov ecx, eax
mov eax, ebx
mov ebx, 10
d_desnum:
xor edx, edx
call division_64_bits
div ebx
add dl, 48
mov [edi], dl
dec edi
loop d_desnum
pop eax
call normalize_number
call draw_num_text
add esp, 64
popad
ret
no_display_desnum:
cmp ah, 0x01 ; HEXADECIMAL
jne no_display_hexnum
shr eax, 16
and eax, 0xC03f
; and eax,0x3f
push eax
and eax, 0x3f
mov edi, esp
add edi, 4+64-1
mov ecx, eax
mov eax, ebx
mov ebx, 16
d_hexnum:
xor edx, edx
call division_64_bits
div ebx
hexletters = __fdo_hexdigits
add edx, hexletters
mov dl, [edx]
mov [edi], dl
dec edi
loop d_hexnum
pop eax
call normalize_number
call draw_num_text
add esp, 64
popad
ret
no_display_hexnum:
cmp ah, 0x02 ; BINARY
jne no_display_binnum
shr eax, 16
and eax, 0xC03f
; and eax,0x3f
push eax
and eax, 0x3f
mov edi, esp
add edi, 4+64-1
mov ecx, eax
mov eax, ebx
mov ebx, 2
d_binnum:
xor edx, edx
call division_64_bits
div ebx
add dl, 48
mov [edi], dl
dec edi
loop d_binnum
pop eax
call normalize_number
call draw_num_text
add esp, 64
popad
ret
no_display_binnum:
add esp, 64
popad
ret
normalize_number:
test ah, 0x80
jz .continue
mov ecx, 48
and eax, 0x3f
@@:
inc edi
cmp [edi], cl
jne .continue
dec eax
cmp eax, 1
ja @r
mov al, 1
.continue:
and eax, 0x3f
ret
division_64_bits:
test [esp+1+4], byte 0x40
jz .continue
push eax
mov eax, ebp
div ebx
mov ebp, eax
pop eax
.continue:
ret
draw_num_text:
mov esi, eax
mov edx, 64+4
sub edx, eax
add edx, esp
mov ebx, [esp+64+32-8+4]
; add window start x & y
mov ecx, [TASK_BASE]
mov edi, [CURRENT_TASK]
shl edi, 8
mov eax, [ecx-twdw+WDATA.box.left]
add eax, [edi+SLOT_BASE+APPDATA.wnd_clientbox.left]
shl eax, 16
add eax, [ecx-twdw+WDATA.box.top]
add eax, [edi+SLOT_BASE+APPDATA.wnd_clientbox.top]
add ebx, eax
mov ecx, [esp+64+32-12+4]
and ecx, not 0x80000000 ; force counted string
mov eax, [esp+64+8] ; background color (if given)
mov edi, [esp+64+4]
jmp dtext
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
; 5=system language, 1eng 2fi 3ger 4rus
; 7=hd base 1, pri.master 2, pri slave 3 sec master, 4 sec slave
; 8=fat32 partition in hd
; 9
; 10 = sound dma channel
; 11 = enable lba read
; 12 = enable pci access
and [esp+32], dword 0
dec ebx ; MIDI
jnz nsyse1
cmp ecx, 0x100
jb nsyse1
mov esi, 65535
cmp esi, ecx
jb nsyse1
mov [midi_base], cx ;bx
mov word [mididp], cx;bx
inc cx ;bx
mov word [midisp], cx;bx
ret
iglobal
midi_base dw 0
endg
nsyse1:
dec ebx ; KEYBOARD
jnz nsyse2
mov edi, [TASK_BASE]
mov eax, [edi+TASKDATA.mem_start]
add eax, edx
dec ecx
jnz kbnobase
mov ebx, keymap
mov ecx, 128
call memmove
ret
kbnobase:
dec ecx
jnz kbnoshift
mov ebx, keymap_shift
mov ecx, 128
call memmove
ret
kbnoshift:
dec ecx
jnz kbnoalt
mov ebx, keymap_alt
mov ecx, 128
call memmove
ret
kbnoalt:
sub ecx, 6
jnz kbnocountry
mov word [keyboard], dx
ret
kbnocountry:
mov [esp+32], dword 1
ret
nsyse2:
dec ebx ; CD
jnz nsyse4
test ecx, ecx
jz nosesl
cmp ecx, 4
ja nosesl
mov [cd_base], cl
dec ecx
jnz noprma
mov eax, [hd_address_table]
mov [cdbase], eax ;0x1f0
mov [cdid], 0xa0
noprma:
dec ecx
jnz noprsl
mov eax, [hd_address_table]
mov [cdbase], eax ;0x1f0
mov [cdid], 0xb0
noprsl:
dec ecx
jnz nosema
mov eax, [hd_address_table+16]
mov [cdbase], eax ;0x170
mov [cdid], 0xa0
nosema:
dec ecx
jnz nosesl
mov eax, [hd_address_table+16]
mov [cdbase], eax ;0x170
mov [cdid], 0xb0
nosesl:
ret
iglobal
cd_base db 0
endg
nsyse4:
sub ebx, 2 ; SYSTEM LANGUAGE
jnz nsyse5
mov [syslang], ecx
ret
nsyse5:
sub ebx, 2 ; HD BASE - obsolete
jnz nsyse7
nosethd:
ret
nsyse7:
; cmp eax,8 ; HD PARTITION - obsolete
dec ebx
jnz nsyse8
ret
nsyse8:
; cmp eax,11 ; ENABLE LBA READ
and ecx, 1
sub ebx, 3
jnz no_set_lba_read
mov [lba_read_enabled], ecx
ret
no_set_lba_read:
; cmp eax,12 ; ENABLE PCI ACCESS
dec ebx
jnz sys_setup_err
mov [pci_access_enabled], ecx
ret
sys_setup_err:
or [esp+32], dword -1
ret
align 4
sys_getsetup:
; 1=roland mpu midi base , base io address
; 2=keyboard 1, base kaybap 2, shift keymap, 9 country 1eng 2fi 3ger 4rus
; 3=cd base 1, pri.master 2, pri slave 3 sec master, 4 sec slave
; 5=system language, 1eng 2fi 3ger 4rus
; 7=hd base 1, pri.master 2, pri slave 3 sec master, 4 sec slave
; 8=fat32 partition in hd
; 9=get hs timer tic
; cmp eax,1
dec ebx
jnz ngsyse1
movzx eax, [midi_base]
mov [esp+32], eax
ret
ngsyse1:
; cmp eax,2
dec ebx
jnz ngsyse2
mov edi, [TASK_BASE]
mov ebx, [edi+TASKDATA.mem_start]
add ebx, edx
; cmp ebx,1
dec ecx
jnz kbnobaseret
mov eax, keymap
mov ecx, 128
call memmove
ret
kbnobaseret:
; cmp ebx,2
dec ecx
jnz kbnoshiftret
mov eax, keymap_shift
mov ecx, 128
call memmove
ret
kbnoshiftret:
; cmp ebx,3
dec ecx
jne kbnoaltret
mov eax, keymap_alt
mov ecx, 128
call memmove
ret
kbnoaltret:
; cmp ebx,9
sub ecx, 6
jnz ngsyse2
movzx eax, word [keyboard]
mov [esp+32], eax
ret
ngsyse2:
; cmp eax,3
dec ebx
jnz ngsyse3
movzx eax, [cd_base]
mov [esp+32], eax
ret
ngsyse3:
; cmp eax,5
sub ebx, 2
jnz ngsyse5
mov eax, [syslang]
mov [esp+32], eax
ret
ngsyse5:
; cmp eax,9
sub ebx, 4
jnz ngsyse9
mov eax, [timer_ticks];[0xfdf0]
mov [esp+32], eax
ret
ngsyse9:
; cmp eax,11
sub ebx, 2
jnz ngsyse11
mov eax, [lba_read_enabled]
mov [esp+32], eax
ret
ngsyse11:
; cmp eax,12
dec ebx
jnz ngsyse12
mov eax, [pci_access_enabled]
mov [esp+32], eax
ret
ngsyse12:
mov [esp+32], dword 1
ret
get_timer_ticks:
mov eax, [timer_ticks]
ret
iglobal
align 4
mousefn dd msscreen, mswin, msbutton, msset
dd app_load_cursor
dd app_set_cursor
dd app_delete_cursor
dd msz
endg
readmousepos:
; eax=0 screen relative
; eax=1 window relative
; eax=2 buttons pressed
; eax=3 set mouse pos ; reserved
; eax=4 load cursor
; eax=5 set cursor
; eax=6 delete cursor ; reserved
; eax=7 get mouse_z
cmp ebx, 7
ja msset
jmp [mousefn+ebx*4]
msscreen:
mov eax, [MOUSE_X]
shl eax, 16
mov ax, [MOUSE_Y]
mov [esp+36-4], eax
ret
mswin:
mov eax, [MOUSE_X]
shl eax, 16
mov ax, [MOUSE_Y]
mov esi, [TASK_BASE]
mov bx, word [esi-twdw+WDATA.box.left]
shl ebx, 16
mov bx, word [esi-twdw+WDATA.box.top]
sub eax, ebx
mov edi, [CURRENT_TASK]
shl edi, 8
sub ax, word[edi+SLOT_BASE+APPDATA.wnd_clientbox.top]
rol eax, 16
sub ax, word[edi+SLOT_BASE+APPDATA.wnd_clientbox.left]
rol eax, 16
mov [esp+36-4], eax
ret
msbutton:
movzx eax, byte [BTN_DOWN]
mov [esp+36-4], eax
ret
msz:
mov edi, [TASK_COUNT]
movzx edi, word [WIN_POS + edi*2]
cmp edi, [CURRENT_TASK]
jne @f
mov ax, [MOUSE_SCROLL_H]
shl eax, 16
mov ax, [MOUSE_SCROLL_V]
mov [esp+36-4], eax
and [MOUSE_SCROLL_H], word 0
and [MOUSE_SCROLL_V], word 0
ret
@@:
and [esp+36-4], dword 0
; ret
msset:
ret
app_load_cursor:
cmp ecx, OS_BASE
jae msset
stdcall load_cursor, ecx, edx
mov [esp+36-4], eax
ret
app_set_cursor:
stdcall set_cursor, ecx
mov [esp+36-4], eax
ret
app_delete_cursor:
stdcall delete_cursor, ecx
mov [esp+36-4], eax
ret
is_input:
push edx
mov dx, word [midisp]
in al, dx
and al, 0x80
pop edx
ret
is_output:
push edx
mov dx, word [midisp]
in al, dx
and al, 0x40
pop edx
ret
get_mpu_in:
push edx
mov dx, word [mididp]
in al, dx
pop edx
ret
put_mpu_out:
push edx
mov dx, word [mididp]
out dx, al
pop edx
ret
align 4
sys_midi:
cmp [mididp], 0
jnz sm0
mov [esp+36], dword 1
ret
sm0:
and [esp+36], dword 0
dec ebx
jnz smn1
; call setuart
su1:
call is_output
test al, al
jnz su1
mov dx, word [midisp]
mov al, 0xff
out dx, al
su2:
mov dx, word [midisp]
mov al, 0xff
out dx, al
call is_input
test al, al
jnz su2
call get_mpu_in
cmp al, 0xfe
jnz su2
su3:
call is_output
test al, al
jnz su3
mov dx, word [midisp]
mov al, 0x3f
out dx, al
ret
smn1:
dec ebx
jnz smn2
sm10:
call get_mpu_in
call is_output
test al, al
jnz sm10
mov al, bl
call put_mpu_out
smn2:
ret
detect_devices:
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
;include 'detect/commouse.inc'
;include 'detect/ps2mouse.inc'
;include 'detect/dev_fd.inc'
;include 'detect/dev_hdcd.inc'
;include 'detect/sear_par.inc'
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
ret
sys_end:
;--------------------------------------
cmp [_display.select_cursor], 0
je @f
; restore default cursor before killing
pusha
mov ecx, [current_slot]
call restore_default_cursor_before_killing
popa
@@:
;--------------------------------------
; kill all sockets this process owns
pusha
mov edx, [TASK_BASE]
mov edx, [edx+TASKDATA.pid]
call SOCKET_process_end
popa
;--------------------------------------
mov ecx, [current_slot]
mov eax, [ecx+APPDATA.tls_base]
test eax, eax
jz @F
stdcall user_free, eax
@@:
mov eax, [TASK_BASE]
mov [eax+TASKDATA.state], 3; terminate this program
call wakeup_osloop
.waitterm: ; wait here for termination
call change_task
jmp .waitterm
;------------------------------------------------------------------------------
align 4
restore_default_cursor_before_killing:
pushfd
cli
mov eax, [def_cursor]
mov [ecx+APPDATA.cursor], eax
movzx eax, word [MOUSE_Y]
movzx ebx, word [MOUSE_X]
; mov ecx, [Screen_Max_X]
; inc ecx
; mul ecx
mov eax, [d_width_calc_area + eax*4]
add eax, [_WinMapAddress]
movzx edx, byte [ebx+eax]
shl edx, 8
mov esi, [edx+SLOT_BASE+APPDATA.cursor]
cmp esi, [current_cursor]
je @f
push esi
call [_display.select_cursor]
mov [current_cursor], esi
@@:
mov [redrawmouse_unconditional], 1
call wakeup_osloop
popfd
ret
;------------------------------------------------------------------------------
iglobal
align 4
sys_system_table:
dd sysfn_deactivate ; 1 = deactivate window
dd sysfn_terminate ; 2 = terminate thread
dd sysfn_activate ; 3 = activate window
dd sysfn_getidletime ; 4 = get idle time
dd sysfn_getcpuclock ; 5 = get cpu clock
dd sysfn_saveramdisk ; 6 = save ramdisk
dd sysfn_getactive ; 7 = get active window
dd sysfn_sound_flag ; 8 = get/set sound_flag
dd sysfn_shutdown ; 9 = shutdown with parameter
dd sysfn_minimize ; 10 = minimize window
dd sysfn_getdiskinfo ; 11 = get disk subsystem info
dd sysfn_lastkey ; 12 = get last pressed key
dd sysfn_getversion ; 13 = get kernel version
dd sysfn_waitretrace ; 14 = wait retrace
dd sysfn_centermouse ; 15 = center mouse cursor
dd sysfn_getfreemem ; 16 = get free memory size
dd sysfn_getallmem ; 17 = get total memory size
dd sysfn_terminate2 ; 18 = terminate thread using PID
; instead of slot
dd sysfn_mouse_acceleration; 19 = set/get mouse acceleration
dd sysfn_meminfo ; 20 = get extended memory info
dd sysfn_pid_to_slot ; 21 = get slot number for pid
dd sysfn_min_rest_window ; 22 = minimize and restore any window
dd sysfn_min_windows ; 23 = minimize all windows
dd sysfn_set_screen_sizes ; 24 = set screen sizes for Vesa
sysfn_num = ($ - sys_system_table)/4
endg
;------------------------------------------------------------------------------
sys_system:
dec ebx
cmp ebx, sysfn_num
jae @f
jmp dword [sys_system_table + ebx*4]
@@:
ret
;------------------------------------------------------------------------------
sysfn_shutdown: ; 18.9 = system shutdown
cmp ecx, 1
jl exit_for_anyone
cmp ecx, 4
jg exit_for_anyone
mov [BOOT_VARS+0x9030], cl
mov eax, [TASK_COUNT]
mov [SYS_SHUTDOWN], al
mov [shutdown_processes], eax
call wakeup_osloop
and dword [esp+32], 0
exit_for_anyone:
ret
uglobal
shutdown_processes:
dd 0x0
endg
;------------------------------------------------------------------------------
sysfn_terminate: ; 18.2 = TERMINATE
push ecx
cmp ecx, 2
jb noprocessterminate
mov edx, [TASK_COUNT]
cmp ecx, edx
ja noprocessterminate
mov eax, [TASK_COUNT]
shl ecx, 5
mov edx, [ecx+CURRENT_TASK+TASKDATA.pid]
add ecx, CURRENT_TASK+TASKDATA.state
cmp byte [ecx], 9
jz noprocessterminate
push ecx edx
lea edx, [(ecx-(CURRENT_TASK and 1FFFFFFFh)-TASKDATA.state)*8+SLOT_BASE]
call request_terminate
pop edx ecx
test eax, eax
jz noprocessterminate
;--------------------------------------
; terminate all network sockets it used
pusha
mov eax, edx
call SOCKET_process_end
popa
;--------------------------------------
cmp [_display.select_cursor], 0
je .restore_end
; restore default cursor before killing
pusha
mov ecx, [esp+32]
shl ecx, 8
add ecx, SLOT_BASE
mov eax, [def_cursor]
cmp [ecx+APPDATA.cursor], eax
je @f
call restore_default_cursor_before_killing
@@:
popa
.restore_end:
;--------------------------------------
;call MEM_Heap_Lock ;guarantee that process isn't working with heap
mov [ecx], byte 3; clear possible i40's
call wakeup_osloop
;call MEM_Heap_UnLock
cmp edx, [application_table_owner]; clear app table stat
jne noatsc
call unlock_application_table
noatsc:
noprocessterminate:
add esp, 4
ret
;------------------------------------------------------------------------------
sysfn_terminate2:
;lock application_table_status mutex
.table_status:
call lock_application_table
mov eax, ecx
call pid_to_slot
test eax, eax
jz .not_found
mov ecx, eax
cli
call sysfn_terminate
call unlock_application_table
sti
and dword [esp+32], 0
ret
.not_found:
call unlock_application_table
or dword [esp+32], -1
ret
;------------------------------------------------------------------------------
sysfn_deactivate: ; 18.1 = DEACTIVATE WINDOW
cmp ecx, 2
jb .nowindowdeactivate
cmp ecx, [TASK_COUNT]
ja .nowindowdeactivate
movzx esi, word [WIN_STACK + ecx*2]
cmp esi, 1
je .nowindowdeactivate ; already deactive
mov edi, ecx
shl edi, 5
add edi, window_data
movzx esi, word [WIN_STACK + ecx * 2]
lea esi, [WIN_POS + esi * 2]
call window._.window_deactivate
call syscall_display_settings._.calculate_whole_screen
call syscall_display_settings._.redraw_whole_screen
.nowindowdeactivate:
ret
;------------------------------------------------------------------------------
sysfn_activate: ; 18.3 = ACTIVATE WINDOW
cmp ecx, 2
jb .nowindowactivate
cmp ecx, [TASK_COUNT]
ja .nowindowactivate
;-------------------------------------
@@:
; If the window is captured and moved by the user,
; then you can't change the position in window stack!!!
mov al, [mouse.active_sys_window.action]
and al, WINDOW_MOVE_AND_RESIZE_FLAGS
test al, al
jz @f
call change_task
jmp @b
@@:
;-------------------------------------
mov [window_minimize], 2; restore window if minimized
call wakeup_osloop
movzx esi, word [WIN_STACK + ecx*2]
cmp esi, [TASK_COUNT]
je .nowindowactivate; already active
mov edi, ecx
shl edi, 5
add edi, window_data
movzx esi, word [WIN_STACK + ecx * 2]
lea esi, [WIN_POS + esi * 2]
call waredraw
.nowindowactivate:
ret
;------------------------------------------------------------------------------
sysfn_getidletime: ; 18.4 = GET IDLETIME
mov eax, [CURRENT_TASK+32+TASKDATA.cpu_usage]
mov [esp+32], eax
ret
;------------------------------------------------------------------------------
sysfn_getcpuclock: ; 18.5 = GET TSC/SEC
mov eax, dword [cpu_freq]
mov [esp+32], eax
ret
;------------------------------------------------------------------------------
get_cpu_freq:
mov eax, dword [cpu_freq]
mov edx, dword [cpu_freq+4]
ret
; SAVE ramdisk to /hd/1/menuet.img
;!!!!!!!!!!!!!!!!!!!!!!!!
include 'blkdev/rdsave.inc'
;!!!!!!!!!!!!!!!!!!!!!!!!
;------------------------------------------------------------------------------
align 4
sysfn_getactive: ; 18.7 = get active window
mov eax, [TASK_COUNT]
movzx eax, word [WIN_POS + eax*2]
mov [esp+32], eax
ret
;------------------------------------------------------------------------------
sysfn_sound_flag: ; 18.8 = get/set sound_flag
; cmp ecx,1
dec ecx
jnz nogetsoundflag
movzx eax, byte [sound_flag]; get sound_flag
mov [esp+32], eax
ret
nogetsoundflag:
; cmp ecx,2
dec ecx
jnz nosoundflag
xor byte [sound_flag], 1
nosoundflag:
ret
;------------------------------------------------------------------------------
sysfn_minimize: ; 18.10 = minimize window
mov [window_minimize], 1
call wakeup_osloop
ret
;------------------------------------------------------------------------------
align 4
sysfn_getdiskinfo: ; 18.11 = get disk info table
; cmp ecx,1
dec ecx
jnz full_table
small_table:
call for_all_tables
mov ecx, 10
cld
rep movsb
ret
for_all_tables:
mov edi, edx
mov esi, DRIVE_DATA
ret
full_table:
; cmp ecx,2
dec ecx
jnz exit_for_anyone
call for_all_tables
mov ecx, DRIVE_DATA_SIZE/4
cld
rep movsd
ret
;------------------------------------------------------------------------------
sysfn_lastkey: ; 18.12 = return 0 (backward compatibility)
and dword [esp+32], 0
ret
;------------------------------------------------------------------------------
sysfn_getversion: ; 18.13 = get kernel ID and version
mov edi, ecx
mov esi, version_inf
mov ecx, version_end-version_inf
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
and [esp+32], dword 0
ret
;------------------------------------------------------------------------------
align 4
sysfn_centermouse: ; 18.15 = mouse centered
; removed here by <Lrz>
; call mouse_centered
;* mouse centered - start code- Mario79
;mouse_centered:
; push eax
mov eax, [Screen_Max_X]
shr eax, 1
mov [MOUSE_X], ax
mov eax, [Screen_Max_Y]
shr eax, 1
mov [MOUSE_Y], ax
call wakeup_osloop
; ret
;* mouse centered - end code- Mario79
xor eax, eax
and [esp+32], eax
; pop eax
ret
;------------------------------------------------------------------------------
align 4
sysfn_mouse_acceleration: ; 18.19 = set/get mouse features
test ecx, ecx; get mouse speed factor
jnz .set_mouse_acceleration
xor eax, eax
mov ax, [mouse_speed_factor]
mov [esp+32], eax
ret
.set_mouse_acceleration:
; cmp ecx,1 ; set mouse speed factor
dec ecx
jnz .get_mouse_delay
mov [mouse_speed_factor], dx
ret
.get_mouse_delay:
; cmp ecx,2 ; get mouse delay
dec ecx
jnz .set_mouse_delay
mov eax, [mouse_delay]
mov [esp+32], eax
ret
.set_mouse_delay:
; cmp ecx,3 ; set mouse delay
dec ecx
jnz .set_pointer_position
mov [mouse_delay], edx
ret
.set_pointer_position:
; cmp ecx,4 ; set mouse pointer position
dec ecx
jnz .set_mouse_button
cmp dx, word[Screen_Max_Y]
ja .end
rol edx, 16
cmp dx, word[Screen_Max_X]
ja .end
mov [MOUSE_X], edx
mov [mouse_active], 1
call wakeup_osloop
ret
.set_mouse_button:
; cmp ecx,5 ; set mouse button features
dec ecx
jnz .end
mov [BTN_DOWN], dl
mov [mouse_active], 1
call wakeup_osloop
.end:
ret
;------------------------------------------------------------------------------
sysfn_getfreemem:
mov eax, [pg_data.pages_free]
shl eax, 2
mov [esp+32], eax
ret
;------------------------------------------------------------------------------
sysfn_getallmem:
mov eax, [MEM_AMOUNT]
shr eax, 10
mov [esp+32], eax
ret
;------------------------------------------------------------------------------
sysfn_pid_to_slot:
mov eax, ecx
call pid_to_slot
mov [esp+32], eax
ret
;------------------------------------------------------------------------------
sysfn_min_rest_window:
pushad
mov eax, edx ; ebx - operating
shr ecx, 1
jnc @f
call pid_to_slot
@@:
or eax, eax ; eax - number of slot
jz .error
cmp eax, 255 ; varify maximal slot number
ja .error
movzx eax, word [WIN_STACK + eax*2]
shr ecx, 1
jc .restore
; .minimize:
call minimize_window
jmp .exit
.restore:
call restore_minimized_window
.exit:
popad
xor eax, eax
mov [esp+32], eax
ret
.error:
popad
xor eax, eax
dec eax
mov [esp+32], eax
ret
;------------------------------------------------------------------------------
sysfn_min_windows:
call minimize_all_window
mov [esp+32], eax
call change_task
ret
;------------------------------------------------------------------------------
sysfn_set_screen_sizes:
cmp [SCR_MODE], word 0x13
jbe .exit
cmp [_display.select_cursor], select_cursor
jne .exit
cmp ecx, [display_width_standard]
ja .exit
cmp edx, [display_height_standard]
ja .exit
pushfd
cli
mov eax, ecx
mov ecx, [_display.pitch]
mov [_display.width], eax
dec eax
mov [_display.height], edx
dec edx
; eax - new Screen_Max_X
; edx - new Screen_Max_Y
mov [do_not_touch_winmap], 1
call set_screen
mov [do_not_touch_winmap], 0
popfd
call change_task
.exit:
ret
;------------------------------------------------------------------------------
uglobal
screen_workarea RECT
display_width_standard dd 0
display_height_standard dd 0
do_not_touch_winmap db 0
window_minimize db 0
sound_flag db 0
endg
UID_NONE=0
UID_MENUETOS=1 ;official
UID_KOLIBRI=2 ;russian
iglobal
version_inf:
db 0,7,7,0 ; version 0.7.7.0
db 0
.rev dd __REV__
version_end:
endg
;------------------------------------------------------------------------------
align 4
sys_cachetodiskette:
cmp ebx, 1
jb .no_floppy_save
cmp ebx, 2
ja .no_floppy_save
call save_image
mov [esp + 32], eax
ret
.no_floppy_save:
mov [esp + 32], dword 1
ret
;------------------------------------------------------------------------------
uglobal
; bgrchanged dd 0x0
align 4
bgrlockpid dd 0
bgrlock db 0
endg
;------------------------------------------------------------------------------
align 4
sys_background:
cmp ebx, 1 ; BACKGROUND SIZE
jnz nosb1
test ecx, ecx
jz sbgrr
test edx, edx
jz sbgrr
;--------------------------------------
align 4
@@:
;;Maxis use atomic bts for mutexes 4.4.2009
bts dword [bgrlock], 0
jnc @f
call change_task
jmp @b
;--------------------------------------
align 4
@@:
mov [BgrDataWidth], ecx
mov [BgrDataHeight], edx
; mov [bgrchanged],1
pushad
; return memory for old background
mov eax, [img_background]
cmp eax, static_background_data
jz @f
stdcall kernel_free, eax
;--------------------------------------
align 4
@@:
; calculate RAW size
xor eax, eax
inc eax
cmp [BgrDataWidth], eax
jae @f
mov [BgrDataWidth], eax
;--------------------------------------
align 4
@@:
cmp [BgrDataHeight], eax
jae @f
mov [BgrDataHeight], eax
;--------------------------------------
align 4
@@:
mov eax, [BgrDataWidth]
imul eax, [BgrDataHeight]
lea eax, [eax*3]
; it is reserved with aligned to the boundary of 4 KB pages,
; otherwise there may be exceptions a page fault for vesa20_drawbackground_tiled
; because the 32 bit read is used for high performance: "mov eax,[esi]"
shr eax, 12
inc eax
shl eax, 12
mov [mem_BACKGROUND], eax
; get memory for new background
stdcall kernel_alloc, eax
test eax, eax
jz .memfailed
mov [img_background], eax
jmp .exit
;--------------------------------------
align 4
.memfailed:
; revert to static monotone data
mov [img_background], static_background_data
xor eax, eax
inc eax
mov [BgrDataWidth], eax
mov [BgrDataHeight], eax
mov [mem_BACKGROUND], 4
;--------------------------------------
align 4
.exit:
popad
mov [bgrlock], 0
;--------------------------------------
align 4
sbgrr:
ret
;------------------------------------------------------------------------------
align 4
nosb1:
cmp ebx, 2 ; SET PIXEL
jnz nosb2
mov eax, [img_background]
test ecx, ecx
jz @f
cmp eax, static_background_data
jz .ret
;--------------------------------------
align 4
@@:
mov ebx, [mem_BACKGROUND]
add ebx, 4095
and ebx, -4096
sub ebx, 4
cmp ecx, ebx
ja .ret
mov ebx, [eax+ecx]
and ebx, 0xFF000000;255*256*256*256
and edx, 0x00FFFFFF;255*256*256+255*256+255
add edx, ebx
mov [eax+ecx], edx
;--------------------------------------
align 4
.ret:
ret
;------------------------------------------------------------------------------
align 4
nosb2:
cmp ebx, 3 ; DRAW BACKGROUND
jnz nosb3
;--------------------------------------
align 4
draw_background_temp:
mov [background_defined], 1
call force_redraw_background
;--------------------------------------
align 4
nosb31:
ret
;------------------------------------------------------------------------------
align 4
nosb3:
cmp ebx, 4 ; TILED / STRETCHED
jnz nosb4
cmp ecx, [BgrDrawMode]
je nosb41
mov [BgrDrawMode], ecx
;--------------------------------------
align 4
nosb41:
ret
;------------------------------------------------------------------------------
align 4
nosb4:
cmp ebx, 5 ; BLOCK MOVE TO BGR
jnz nosb5
cmp [img_background], static_background_data
jnz @f
test edx, edx
jnz .fin
cmp esi, 4
ja .fin
;--------------------------------------
align 4
@@:
; bughere
mov eax, ecx
mov ebx, edx
add ebx, [img_background];IMG_BACKGROUND
mov ecx, esi
call memmove
;--------------------------------------
align 4
.fin:
ret
;------------------------------------------------------------------------------
align 4
nosb5:
cmp ebx, 6
jnz nosb6
;--------------------------------------
align 4
;;Maxis use atomic bts for mutex 4.4.2009
@@:
bts dword [bgrlock], 0
jnc @f
call change_task
jmp @b
;--------------------------------------
align 4
@@:
mov eax, [CURRENT_TASK]
mov [bgrlockpid], eax
cmp [img_background], static_background_data
jz .nomem
stdcall user_alloc, [mem_BACKGROUND]
mov [esp+32], eax
test eax, eax
jz .nomem
mov ebx, eax
shr ebx, 12
or dword [page_tabs+(ebx-1)*4], DONT_FREE_BLOCK
mov esi, [img_background]
shr esi, 12
mov ecx, [mem_BACKGROUND]
add ecx, 0xFFF
shr ecx, 12
;--------------------------------------
align 4
.z:
mov eax, [page_tabs+ebx*4]
test al, 1
jz @f
call free_page
;--------------------------------------
align 4
@@:
mov eax, [page_tabs+esi*4]
or al, PG_UW
mov [page_tabs+ebx*4], eax
mov eax, ebx
shl eax, 12
invlpg [eax]
inc ebx
inc esi
loop .z
ret
;--------------------------------------
align 4
.nomem:
and [bgrlockpid], 0
mov [bgrlock], 0
;------------------------------------------------------------------------------
align 4
nosb6:
cmp ebx, 7
jnz nosb7
cmp [bgrlock], 0
jz .err
mov eax, [CURRENT_TASK]
cmp [bgrlockpid], eax
jnz .err
mov eax, ecx
mov ebx, ecx
shr eax, 12
mov ecx, [page_tabs+(eax-1)*4]
test cl, USED_BLOCK+DONT_FREE_BLOCK
jz .err
jnp .err
push eax
shr ecx, 12
dec ecx
;--------------------------------------
align 4
@@:
and dword [page_tabs+eax*4], 0
mov edx, eax
shl edx, 12
push eax
invlpg [edx]
pop eax
inc eax
loop @b
pop eax
and dword [page_tabs+(eax-1)*4], not DONT_FREE_BLOCK
stdcall user_free, ebx
mov [esp+32], eax
and [bgrlockpid], 0
mov [bgrlock], 0
ret
;--------------------------------------
align 4
.err:
and dword [esp+32], 0
ret
;------------------------------------------------------------------------------
align 4
nosb7:
cmp ebx, 8
jnz nosb8
mov ecx, [current_slot]
xor eax, eax
xchg eax, [ecx+APPDATA.draw_bgr_x]
mov [esp + 32], eax ; eax = [left]*65536 + [right]
xor eax, eax
xchg eax, [ecx+APPDATA.draw_bgr_y]
mov [esp + 20], eax ; ebx = [top]*65536 + [bottom]
ret
;------------------------------------------------------------------------------
align 4
nosb8:
cmp ebx, 9
jnz nosb9
; ecx = [left]*65536 + [right]
; edx = [top]*65536 + [bottom]
mov eax, [Screen_Max_X]
mov ebx, [Screen_Max_Y]
; check [right]
cmp cx, ax
ja .exit
; check [left]
ror ecx, 16
cmp cx, ax
ja .exit
; check [bottom]
cmp dx, bx
ja .exit
; check [top]
ror edx, 16
cmp dx, bx
ja .exit
movzx eax, cx ; [left]
movzx ebx, dx ; [top]
shr ecx, 16 ; [right]
shr edx, 16 ; [bottom]
mov [background_defined], 1
mov [draw_data+32 + RECT.left], eax
mov [draw_data+32 + RECT.top], ebx
mov [draw_data+32 + RECT.right], ecx
mov [draw_data+32 + RECT.bottom], edx
inc byte[REDRAW_BACKGROUND]
call wakeup_osloop
;--------------------------------------
align 4
.exit:
ret
;------------------------------------------------------------------------------
align 4
nosb9:
ret
;------------------------------------------------------------------------------
align 4
uglobal
BG_Rect_X_left_right dd 0x0
BG_Rect_Y_top_bottom dd 0x0
endg
;------------------------------------------------------------------------------
align 4
force_redraw_background:
and [draw_data+32 + RECT.left], 0
and [draw_data+32 + RECT.top], 0
push eax ebx
mov eax, [Screen_Max_X]
mov ebx, [Screen_Max_Y]
mov [draw_data+32 + RECT.right], eax
mov [draw_data+32 + RECT.bottom], ebx
pop ebx eax
inc byte[REDRAW_BACKGROUND]
call wakeup_osloop
ret
;------------------------------------------------------------------------------
align 4
sys_getbackground:
; cmp eax,1 ; SIZE
dec ebx
jnz nogb1
mov eax, [BgrDataWidth]
shl eax, 16
mov ax, word [BgrDataHeight]
mov [esp+32], eax
ret
;------------------------------------------------------------------------------
align 4
nogb1:
; cmp eax,2 ; PIXEL
dec ebx
jnz nogb2
mov eax, [img_background]
test ecx, ecx
jz @f
cmp eax, static_background_data
jz .ret
;--------------------------------------
align 4
@@:
mov ebx, [mem_BACKGROUND]
add ebx, 4095
and ebx, -4096
sub ebx, 4
cmp ecx, ebx
ja .ret
mov eax, [ecx+eax]
and eax, 0xFFFFFF
mov [esp+32], eax
;--------------------------------------
align 4
.ret:
ret
;------------------------------------------------------------------------------
align 4
nogb2:
; cmp eax,4 ; TILED / STRETCHED
dec ebx
dec ebx
jnz nogb4
mov eax, [BgrDrawMode]
;--------------------------------------
align 4
nogb4:
mov [esp+32], eax
ret
;------------------------------------------------------------------------------
align 4
sys_getkey:
mov [esp + 32], dword 1
; test main buffer
mov ebx, [CURRENT_TASK] ; TOP OF WINDOW STACK
movzx ecx, word [WIN_STACK + ebx * 2]
mov edx, [TASK_COUNT]
cmp ecx, edx
jne .finish
cmp [KEY_COUNT], byte 0
je .finish
movzx eax, byte [KEY_BUFF]
shl eax, 8
push eax
dec byte [KEY_COUNT]
and byte [KEY_COUNT], 127
movzx ecx, byte [KEY_COUNT]
add ecx, 2
mov eax, KEY_BUFF + 1
mov ebx, KEY_BUFF
call memmove
pop eax
;--------------------------------------
align 4
.ret_eax:
mov [esp + 32], eax
ret
;--------------------------------------
align 4
.finish:
; test hotkeys buffer
mov ecx, hotkey_buffer
;--------------------------------------
align 4
@@:
cmp [ecx], ebx
jz .found
add ecx, 8
cmp ecx, hotkey_buffer + 120 * 8
jb @b
ret
;--------------------------------------
align 4
.found:
mov ax, [ecx + 6]
shl eax, 16
mov ah, [ecx + 4]
mov al, 2
and dword [ecx + 4], 0
and dword [ecx], 0
jmp .ret_eax
;------------------------------------------------------------------------------
align 4
sys_getbutton:
mov ebx, [CURRENT_TASK] ; TOP OF WINDOW STACK
mov [esp + 32], dword 1
movzx ecx, word [WIN_STACK + ebx * 2]
mov edx, [TASK_COUNT] ; less than 256 processes
cmp ecx, edx
jne .exit
movzx eax, byte [BTN_COUNT]
test eax, eax
jz .exit
mov eax, [BTN_BUFF]
and al, 0xFE ; delete left button bit
mov [BTN_COUNT], byte 0
mov [esp + 32], eax
;--------------------------------------
align 4
.exit:
ret
;------------------------------------------------------------------------------
align 4
sys_cpuusage:
; RETURN:
;
; +00 dword process cpu usage
; +04 word position in windowing stack
; +06 word windowing stack value at current position (cpu nro)
; +10 12 bytes name
; +22 dword start in mem
; +26 dword used mem
; +30 dword PID , process idenfification number
;
cmp ecx, -1 ; who am I ?
jne .no_who_am_i
mov ecx, [CURRENT_TASK]
.no_who_am_i:
cmp ecx, max_processes
ja .nofillbuf
; +4: word: position of the window of thread in the window stack
mov ax, [WIN_STACK + ecx * 2]
mov [ebx+4], ax
; +6: word: number of the thread slot, which window has in the window stack
; position ecx (has no relation to the specific thread)
mov ax, [WIN_POS + ecx * 2]
mov [ebx+6], ax
shl ecx, 5
; +0: dword: memory usage
mov eax, [ecx+CURRENT_TASK+TASKDATA.cpu_usage]
mov [ebx], eax
; +10: 11 bytes: name of the process
push ecx
lea eax, [ecx*8+SLOT_BASE+APPDATA.app_name]
add ebx, 10
mov ecx, 11
call memmove
pop ecx
; +22: address of the process in memory
; +26: size of used memory - 1
push edi
lea edi, [ebx+12]
xor eax, eax
mov edx, 0x100000*16
cmp ecx, 1 shl 5
je .os_mem
mov edx, [SLOT_BASE+ecx*8+APPDATA.mem_size]
mov eax, std_application_base_address
.os_mem:
stosd
lea eax, [edx-1]
stosd
; +30: PID/TID
mov eax, [ecx+CURRENT_TASK+TASKDATA.pid]
stosd
; window position and size
push esi
lea esi, [ecx + window_data + WDATA.box]
movsd
movsd
movsd
movsd
; Process state (+50)
mov eax, dword [ecx+CURRENT_TASK+TASKDATA.state]
stosd
; Window client area box
lea esi, [ecx*8 + SLOT_BASE + APPDATA.wnd_clientbox]
movsd
movsd
movsd
movsd
; Window state
mov al, [ecx+window_data+WDATA.fl_wstate]
stosb
; Event mask (+71)
mov EAX, dword [ECX+CURRENT_TASK+TASKDATA.event_mask]
stosd
; Keyboard mode (+75)
mov al, byte [ecx*8 + SLOT_BASE + APPDATA.keyboard_mode]
stosb
pop esi
pop edi
.nofillbuf:
; return number of processes
mov eax, [TASK_COUNT]
mov [esp+32], eax
ret
align 4
sys_clock:
cli
; Mikhail Lisovin xx Jan 2005
@@:
mov al, 10
out 0x70, al
in al, 0x71
test al, al
jns @f
mov esi, 1
call delay_ms
jmp @b
@@:
; end Lisovin's fix
xor al, al ; seconds
out 0x70, al
in al, 0x71
movzx ecx, al
mov al, 02 ; minutes
shl ecx, 16
out 0x70, al
in al, 0x71
movzx edx, al
mov al, 04 ; hours
shl edx, 8
out 0x70, al
in al, 0x71
add ecx, edx
movzx edx, al
add ecx, edx
sti
mov [esp + 32], ecx
ret
align 4
sys_date:
cli
@@:
mov al, 10
out 0x70, al
in al, 0x71
test al, al
jns @f
mov esi, 1
call delay_ms
jmp @b
@@:
mov ch, 0
mov al, 7 ; date
out 0x70, al
in al, 0x71
mov cl, al
mov al, 8 ; month
shl ecx, 16
out 0x70, al
in al, 0x71
mov ch, al
mov al, 9 ; year
out 0x70, al
in al, 0x71
mov cl, al
sti
mov [esp+32], ecx
ret
; redraw status
sys_redrawstat:
cmp ebx, 1
jne no_widgets_away
; buttons away
mov ecx, [CURRENT_TASK]
sys_newba2:
mov edi, [BTN_ADDR]
cmp [edi], dword 0 ; empty button list ?
je end_of_buttons_away
movzx ebx, word [edi]
inc ebx
mov eax, edi
sys_newba:
dec ebx
jz end_of_buttons_away
add eax, 0x10
cmp cx, [eax]
jnz sys_newba
push eax ebx ecx
mov ecx, ebx
inc ecx
shl ecx, 4
mov ebx, eax
add eax, 0x10
call memmove
dec dword [edi]
pop ecx ebx eax
jmp sys_newba2
end_of_buttons_away:
ret
no_widgets_away:
cmp ebx, 2
jnz srl1
mov edx, [TASK_BASE] ; return whole screen draw area for this app
add edx, draw_data - CURRENT_TASK
mov [edx + RECT.left], 0
mov [edx + RECT.top], 0
mov eax, [Screen_Max_X]
mov [edx + RECT.right], eax
mov eax, [Screen_Max_Y]
mov [edx + RECT.bottom], eax
srl1:
ret
;ok - 100% work
;nt - not tested
;---------------------------------------------------------------------------------------------
;eax
;0 - task switch counter. Ret switch counter in eax. Block. ok.
;1 - change task. Ret nothing. Block. ok.
;2 - performance control
; ebx
; 0 - enable or disable (inversion) PCE flag on CR4 for rdmpc in user mode.
; returned new cr4 in eax. Ret cr4 in eax. Block. ok.
; 1 - is cache enabled. Ret cr0 in eax if enabled else zero in eax. Block. ok.
; 2 - enable cache. Ret 1 in eax. Ret nothing. Block. ok.
; 3 - disable cache. Ret 0 in eax. Ret nothing. Block. ok.
;eax
;3 - rdmsr. Counter in edx. (edx:eax) [esi:edi, edx] => [edx:esi, ecx]. Ret in ebx:eax. Block. ok.
;4 - wrmsr. Counter in edx. (edx:eax) [esi:edi, edx] => [edx:esi, ecx]. Ret in ebx:eax. Block. ok.
;---------------------------------------------------------------------------------------------
iglobal
align 4
sheduler:
dd sys_sheduler.00
dd change_task
dd sys_sheduler.02
dd sys_sheduler.03
dd sys_sheduler.04
endg
sys_sheduler:
;rewritten by <Lrz> 29.12.2009
jmp dword [sheduler+ebx*4]
;.shed_counter:
.00:
mov eax, [context_counter]
mov [esp+32], eax
ret
.02:
;.perf_control:
inc ebx ;before ebx=2, ebx=3
cmp ebx, ecx ;if ecx=3, ebx=3
jz cache_disable
dec ebx ;ebx=2
cmp ebx, ecx ;
jz cache_enable ;if ecx=2 and ebx=2
dec ebx ;ebx=1
cmp ebx, ecx
jz is_cache_enabled ;if ecx=1 and ebx=1
dec ebx
test ebx, ecx ;ebx=0 and ecx=0
jz modify_pce ;if ecx=0
ret
.03:
;.rdmsr_instr:
;now counter in ecx
;(edx:eax) esi:edi => edx:esi
mov eax, esi
mov ecx, edx
rdmsr
mov [esp+32], eax
mov [esp+20], edx ;ret in ebx?
ret
.04:
;.wrmsr_instr:
;now counter in ecx
;(edx:eax) esi:edi => edx:esi
; Fast Call MSR can't be destroy
; Но MSR_AMD_EFER можно изменять, т.к. в этом регистре лиш
; включаются/выключаются расширенные возможности
cmp edx, MSR_SYSENTER_CS
je @f
cmp edx, MSR_SYSENTER_ESP
je @f
cmp edx, MSR_SYSENTER_EIP
je @f
cmp edx, MSR_AMD_STAR
je @f
mov eax, esi
mov ecx, edx
wrmsr
; mov [esp + 32], eax
; mov [esp + 20], edx ;ret in ebx?
@@:
ret
cache_disable:
mov eax, cr0
or eax, 01100000000000000000000000000000b
mov cr0, eax
wbinvd ;set MESI
ret
cache_enable:
mov eax, cr0
and eax, 10011111111111111111111111111111b
mov cr0, eax
ret
is_cache_enabled:
mov eax, cr0
mov ebx, eax
and eax, 01100000000000000000000000000000b
jz cache_disabled
mov [esp+32], ebx
cache_disabled:
mov dword [esp+32], eax;0
ret
modify_pce:
mov eax, cr4
; mov ebx,0
; or bx,100000000b ;pce
; xor eax,ebx ;invert pce
bts eax, 8;pce=cr4[8]
mov cr4, eax
mov [esp+32], eax
ret
;---------------------------------------------------------------------------------------------
; check if pixel is allowed to be drawn
;checkpixel:
; push eax edx
;; mov edx, [Screen_Max_X] ; screen x size
;; inc edx
;; imul edx, ebx
; mov edx, [d_width_calc_area + ebx*4]
; add eax, [_WinMapAddress]
; mov dl, [eax+edx]; lea eax, [...]
; xor ecx, ecx
; mov eax, [CURRENT_TASK]
; cmp al, dl
; setne cl
; pop edx eax
; ret
iglobal
cpustring db 'CPU',0
endg
uglobal
background_defined db 0 ; diamond, 11.04.2006
endg
;-----------------------------------------------------------------------------
align 4
checkmisc:
cmp [ctrl_alt_del], 1
jne nocpustart
mov ebp, cpustring
call fs_execute_from_sysdir
mov [ctrl_alt_del], 0
;--------------------------------------
align 4
nocpustart:
cmp [mouse_active], 1
jne mouse_not_active
mov [mouse_active], 0
xor edi, edi
mov ebx, CURRENT_TASK
mov ecx, [TASK_COUNT]
movzx eax, word [WIN_POS + ecx*2] ; active window
shl eax, 8
push eax
movzx eax, word [MOUSE_X]
movzx edx, word [MOUSE_Y]
;--------------------------------------
align 4
.set_mouse_event:
add edi, 256
add ebx, 32
test [ebx+TASKDATA.event_mask], 0x80000000
jz .pos_filter
cmp edi, [esp] ; skip if filtration active
jne .skip
;--------------------------------------
align 4
.pos_filter:
test [ebx+TASKDATA.event_mask], 0x40000000
jz .set
mov esi, [ebx-twdw+WDATA.box.left]
cmp eax, esi
jb .skip
add esi, [ebx-twdw+WDATA.box.width]
cmp eax, esi
ja .skip
mov esi, [ebx-twdw+WDATA.box.top]
cmp edx, esi
jb .skip
add esi, [ebx-twdw+WDATA.box.height]
cmp edx, esi
ja .skip
;--------------------------------------
align 4
.set:
or [edi+SLOT_BASE+APPDATA.event_mask], 100000b ; set event 6
;--------------------------------------
align 4
.skip:
loop .set_mouse_event
pop eax
;--------------------------------------
align 4
mouse_not_active:
cmp byte[REDRAW_BACKGROUND], 0 ; background update ?
jz nobackgr
cmp [background_defined], 0
jz nobackgr
;--------------------------------------
align 4
backgr:
mov eax, [draw_data+32 + RECT.left]
shl eax, 16
add eax, [draw_data+32 + RECT.right]
mov [BG_Rect_X_left_right], eax ; [left]*65536 + [right]
mov eax, [draw_data+32 + RECT.top]
shl eax, 16
add eax, [draw_data+32 + RECT.bottom]
mov [BG_Rect_Y_top_bottom], eax ; [top]*65536 + [bottom]
call drawbackground
; DEBUGF 1, "K : drawbackground\n"
; DEBUGF 1, "K : backg x %x\n",[BG_Rect_X_left_right]
; DEBUGF 1, "K : backg y %x\n",[BG_Rect_Y_top_bottom]
;--------- set event 5 start ----------
push ecx edi
xor edi, edi
mov ecx, [TASK_COUNT]
;--------------------------------------
align 4
set_bgr_event:
add edi, 256
mov eax, [BG_Rect_X_left_right]
mov edx, [BG_Rect_Y_top_bottom]
cmp [edi+SLOT_BASE+APPDATA.draw_bgr_x], 0
jz .set
.join:
cmp word [edi+SLOT_BASE+APPDATA.draw_bgr_x], ax
jae @f
mov word [edi+SLOT_BASE+APPDATA.draw_bgr_x], ax
@@:
shr eax, 16
cmp word [edi+SLOT_BASE+APPDATA.draw_bgr_x+2], ax
jbe @f
mov word [edi+SLOT_BASE+APPDATA.draw_bgr_x+2], ax
@@:
cmp word [edi+SLOT_BASE+APPDATA.draw_bgr_y], dx
jae @f
mov word [edi+SLOT_BASE+APPDATA.draw_bgr_y], dx
@@:
shr edx, 16
cmp word [edi+SLOT_BASE+APPDATA.draw_bgr_y+2], dx
jbe @f
mov word [edi+SLOT_BASE+APPDATA.draw_bgr_y+2], dx
@@:
jmp .common
.set:
mov [edi+SLOT_BASE+APPDATA.draw_bgr_x], eax
mov [edi+SLOT_BASE+APPDATA.draw_bgr_y], edx
.common:
or [edi+SLOT_BASE+APPDATA.event_mask], 10000b ; set event 5
loop set_bgr_event
pop edi ecx
;--------- set event 5 stop -----------
dec byte[REDRAW_BACKGROUND] ; got new update request?
jnz backgr
xor eax, eax
mov [draw_data+32 + RECT.left], eax
mov [draw_data+32 + RECT.top], eax
mov [draw_data+32 + RECT.right], eax
mov [draw_data+32 + RECT.bottom], eax
;--------------------------------------
align 4
nobackgr:
; system shutdown request
cmp [SYS_SHUTDOWN], byte 0
je noshutdown
mov edx, [shutdown_processes]
cmp [SYS_SHUTDOWN], dl
jne noshutdown
lea ecx, [edx-1]
mov edx, OS_BASE+0x3040
jecxz no_mark_system_shutdown
;--------------------------------------
align 4
markz:
push ecx edx
cmp [edx+TASKDATA.state], 9
jz .nokill
lea edx, [(edx-(CURRENT_TASK and 1FFFFFFFh))*8+SLOT_BASE]
cmp [edx+APPDATA.dir_table], sys_pgdir - OS_BASE
jz .nokill
call request_terminate
jmp .common
.nokill:
dec byte [SYS_SHUTDOWN]
xor eax, eax
.common:
pop edx ecx
test eax, eax
jz @f
mov [edx+TASKDATA.state], byte 3
@@:
add edx, 0x20
loop markz
call wakeup_osloop
;--------------------------------------
align 4
@@:
no_mark_system_shutdown:
dec byte [SYS_SHUTDOWN]
je system_shutdown
;--------------------------------------
align 4
noshutdown:
mov eax, [TASK_COUNT] ; termination
mov ebx, TASK_DATA+TASKDATA.state
mov esi, 1
;--------------------------------------
align 4
newct:
mov cl, [ebx]
cmp cl, byte 3
jz .terminate
cmp cl, byte 4
jnz .noterminate
.terminate:
pushad
mov ecx, eax
shl ecx, 8
add ecx, SLOT_BASE
call restore_default_cursor_before_killing
popad
pushad
call terminate
popad
cmp byte [SYS_SHUTDOWN], 0
jz .noterminate
dec byte [SYS_SHUTDOWN]
je system_shutdown
.noterminate:
add ebx, 0x20
inc esi
dec eax
jnz newct
ret
;-----------------------------------------------------------------------------
align 4
redrawscreen:
; eax , if process window_data base is eax, do not set flag/limits
pushad
push eax
;;; mov ebx,2
;;; call delay_hs
;mov ecx,0 ; redraw flags for apps
xor ecx, ecx
;--------------------------------------
align 4
newdw2:
inc ecx
push ecx
mov eax, ecx
shl eax, 5
add eax, window_data
cmp eax, [esp+4]
je not_this_task
; check if window in redraw area
mov edi, eax
cmp ecx, 1 ; limit for background
jz bgli
mov eax, [edi + WDATA.box.left]
mov ebx, [edi + WDATA.box.top]
mov ecx, [draw_limits.bottom] ; ecx = area y end ebx = window y start
cmp ecx, ebx
jb ricino
mov ecx, [draw_limits.right] ; ecx = area x end eax = window x start
cmp ecx, eax
jb ricino
mov eax, [edi + WDATA.box.left]
mov ebx, [edi + WDATA.box.top]
mov ecx, [edi + WDATA.box.width]
mov edx, [edi + WDATA.box.height]
add ecx, eax
add edx, ebx
mov eax, [draw_limits.top] ; eax = area y start edx = window y end
cmp edx, eax
jb ricino
mov eax, [draw_limits.left] ; eax = area x start ecx = window x end
cmp ecx, eax
jb ricino
;--------------------------------------
align 4
bgli:
cmp dword[esp], 1
jnz .az
cmp byte[REDRAW_BACKGROUND], 0
jz .az
mov dl, 0
lea eax, [edi+draw_data-window_data]
mov ebx, [draw_limits.left]
cmp ebx, [eax+RECT.left]
jae @f
mov [eax+RECT.left], ebx
mov dl, 1
;--------------------------------------
align 4
@@:
mov ebx, [draw_limits.top]
cmp ebx, [eax+RECT.top]
jae @f
mov [eax+RECT.top], ebx
mov dl, 1
;--------------------------------------
align 4
@@:
mov ebx, [draw_limits.right]
cmp ebx, [eax+RECT.right]
jbe @f
mov [eax+RECT.right], ebx
mov dl, 1
;--------------------------------------
align 4
@@:
mov ebx, [draw_limits.bottom]
cmp ebx, [eax+RECT.bottom]
jbe @f
mov [eax+RECT.bottom], ebx
mov dl, 1
;--------------------------------------
align 4
@@:
add byte[REDRAW_BACKGROUND], dl
call wakeup_osloop
jmp newdw8
;--------------------------------------
align 4
.az:
mov eax, edi
add eax, draw_data-window_data
mov ebx, [draw_limits.left] ; set limits
mov [eax + RECT.left], ebx
mov ebx, [draw_limits.top]
mov [eax + RECT.top], ebx
mov ebx, [draw_limits.right]
mov [eax + RECT.right], ebx
mov ebx, [draw_limits.bottom]
mov [eax + RECT.bottom], ebx
sub eax, draw_data-window_data
cmp dword [esp], 1
jne nobgrd
inc byte[REDRAW_BACKGROUND]
call wakeup_osloop
;--------------------------------------
align 4
newdw8:
nobgrd:
;--------------------------------------
push eax edi ebp
mov edi, [esp+12]
cmp edi, 1
je .found
mov eax, [draw_limits.left]
mov ebx, [draw_limits.top]
mov ecx, [draw_limits.right]
sub ecx, eax
test ecx, ecx
jz .not_found
mov edx, [draw_limits.bottom]
sub edx, ebx
test edx, edx
jz .not_found
; eax - x, ebx - y
; ecx - size x, edx - size y
add ebx, edx
;--------------------------------------
align 4
.start_y:
push ecx
;--------------------------------------
align 4
.start_x:
add eax, ecx
mov ebp, [d_width_calc_area + ebx*4]
add ebp, [_WinMapAddress]
movzx ebp, byte[eax+ebp] ; get value for current point
cmp ebp, edi
jne @f
pop ecx
jmp .found
;--------------------------------------
align 4
@@:
sub eax, ecx
dec ecx
jnz .start_x
pop ecx
dec ebx
dec edx
jnz .start_y
;--------------------------------------
align 4
.not_found:
pop ebp edi eax
jmp ricino
;--------------------------------------
align 4
.found:
pop ebp edi eax
mov [eax + WDATA.fl_redraw], byte 1 ; mark as redraw
;--------------------------------------
align 4
ricino:
not_this_task:
pop ecx
cmp ecx, [TASK_COUNT]
jle newdw2
pop eax
popad
ret
;-----------------------------------------------------------------------------
align 4
calculatebackground: ; background
mov edi, [_WinMapAddress] ; set os to use all pixels
mov eax, 0x01010101
mov ecx, [_WinMapSize]
shr ecx, 2
rep stosd
mov byte[REDRAW_BACKGROUND], 0 ; do not draw background!
ret
;-----------------------------------------------------------------------------
uglobal
imax dd 0x0
endg
;-----------------------------------------------------------------------------
align 4
delay_ms: ; delay in 1/1000 sec
push eax
push ecx
mov ecx, esi
; <CPU clock fix by Sergey Kuzmin aka Wildwest>
imul ecx, 33941
shr ecx, 9
; </CPU clock fix>
in al, 0x61
and al, 0x10
mov ah, al
cld
;--------------------------------------
align 4
cnt1:
in al, 0x61
and al, 0x10
cmp al, ah
jz cnt1
mov ah, al
loop cnt1
pop ecx
pop eax
ret
;-----------------------------------------------------------------------------
align 4
set_app_param:
mov edi, [TASK_BASE]
mov eax, ebx
btr eax, 3 ; move MOUSE_FILTRATION
mov ebx, [current_slot] ; bit into event_filter
setc byte [ebx+APPDATA.event_filter]
xchg eax, [edi + TASKDATA.event_mask] ; set new event mask
mov [esp+32], eax ; return old mask value
ret
;-----------------------------------------------------------------------------
; this is for syscall
proc delay_hs_unprotected
call unprotect_from_terminate
call delay_hs
call protect_from_terminate
ret
endp
if 1
align 4
delay_hs: ; delay in 1/100 secs
; ebx = delay time
pushad
push ebx
xor esi, esi
mov ecx, MANUAL_DESTROY
call create_event
test eax, eax
jz .done
mov ebx, edx
mov ecx, [esp]
push edx
push eax
call wait_event_timeout
pop eax
pop ebx
call destroy_event
.done:
add esp, 4
popad
ret
else
align 4
delay_hs: ; delay in 1/100 secs
; ebx = delay time
push ecx
push edx
mov edx, [timer_ticks]
;--------------------------------------
align 4
newtic:
mov ecx, [timer_ticks]
sub ecx, edx
cmp ecx, ebx
jae zerodelay
call change_task
jmp newtic
;--------------------------------------
align 4
zerodelay:
pop edx
pop ecx
ret
end if
;-----------------------------------------------------------------------------
align 16 ;very often call this subrutine
memmove: ; memory move in bytes
; eax = from
; ebx = to
; ecx = no of bytes
test ecx, ecx
jle .ret
push esi edi ecx
mov edi, ebx
mov esi, eax
test ecx, not 11b
jz @f
push ecx
shr ecx, 2
rep movsd
pop ecx
and ecx, 11b
jz .finish
;--------------------------------------
align 4
@@:
rep movsb
;--------------------------------------
align 4
.finish:
pop ecx edi esi
;--------------------------------------
align 4
.ret:
ret
;-----------------------------------------------------------------------------
; <diamond> Sysfunction 34, read_floppy_file, is obsolete. Use 58 or 70 function instead.
;align 4
;
;read_floppy_file:
;
;; as input
;;
;; eax pointer to file
;; ebx file lenght
;; ecx start 512 byte block number
;; edx number of blocks to read
;; esi pointer to return/work area (atleast 20 000 bytes)
;;
;;
;; on return
;;
;; eax = 0 command succesful
;; 1 no fd base and/or partition defined
;; 2 yet unsupported FS
;; 3 unknown FS
;; 4 partition not defined at hd
;; 5 file not found
;; ebx = size of file
;
; mov edi,[TASK_BASE]
; add edi,0x10
; add esi,[edi]
; add eax,[edi]
;
; pushad
; mov edi,esi
; add edi,1024
; mov esi,0x100000+19*512
; sub ecx,1
; shl ecx,9
; add esi,ecx
; shl edx,9
; mov ecx,edx
; cld
; rep movsb
; popad
;
; mov [esp+36],eax
; mov [esp+24],ebx
; ret
align 4
set_io_access_rights:
push edi eax
mov edi, tss._io_map_0
; mov ecx,eax
; and ecx,7 ; offset in byte
; shr eax,3 ; number of byte
; add edi,eax
; mov ebx,1
; shl ebx,cl
test ebp, ebp
; cmp ebp,0 ; enable access - ebp = 0
jnz .siar1
; not ebx
; and [edi],byte bl
btr [edi], eax
pop eax edi
ret
.siar1:
bts [edi], eax
; or [edi],byte bl ; disable access - ebp = 1
pop eax edi
ret
;reserve/free group of ports
; * eax = 46 - number function
; * ebx = 0 - reserve, 1 - free
; * ecx = number start arrea of ports
; * edx = number end arrea of ports (include last number of port)
;Return value:
; * eax = 0 - succesful
; * eax = 1 - error
; * The system has reserve this ports:
; 0..0x2d, 0x30..0x4d, 0x50..0xdf, 0xe5..0xff (include last number of port).
;destroys eax,ebx, ebp
r_f_port_area:
test ebx, ebx
jnz free_port_area
; je r_port_area
; jmp free_port_area
; r_port_area:
; pushad
cmp ecx, edx ; beginning > end ?
ja rpal1
cmp edx, 65536
jae rpal1
mov eax, [RESERVED_PORTS]
test eax, eax ; no reserved areas ?
je rpal2
cmp eax, 255 ; max reserved
jae rpal1
rpal3:
mov ebx, eax
shl ebx, 4
add ebx, RESERVED_PORTS
cmp ecx, [ebx+8]
ja rpal4
cmp edx, [ebx+4]
jae rpal1
; jb rpal4
; jmp rpal1
rpal4:
dec eax
jnz rpal3
jmp rpal2
rpal1:
; popad
; mov eax,1
xor eax, eax
inc eax
ret
rpal2:
; popad
; enable port access at port IO map
cli
pushad ; start enable io map
cmp edx, 65536;16384
jae no_unmask_io; jge
mov eax, ecx
; push ebp
xor ebp, ebp ; enable - eax = port
new_port_access:
; pushad
call set_io_access_rights
; popad
inc eax
cmp eax, edx
jbe new_port_access
; pop ebp
no_unmask_io:
popad ; end enable io map
sti
mov eax, [RESERVED_PORTS]
add eax, 1
mov [RESERVED_PORTS], eax
shl eax, 4
add eax, RESERVED_PORTS
mov ebx, [TASK_BASE]
mov ebx, [ebx+TASKDATA.pid]
mov [eax], ebx
mov [eax+4], ecx
mov [eax+8], edx
xor eax, eax
ret
free_port_area:
; pushad
mov eax, [RESERVED_PORTS]; no reserved areas ?
test eax, eax
jz frpal2
mov ebx, [TASK_BASE]
mov ebx, [ebx+TASKDATA.pid]
frpal3:
mov edi, eax
shl edi, 4
add edi, RESERVED_PORTS
cmp ebx, [edi]
jne frpal4
cmp ecx, [edi+4]
jne frpal4
cmp edx, [edi+8]
jne frpal4
jmp frpal1
frpal4:
dec eax
jnz frpal3
frpal2:
; popad
inc eax
ret
frpal1:
push ecx
mov ecx, 256
sub ecx, eax
shl ecx, 4
mov esi, edi
add esi, 16
cld
rep movsb
dec dword [RESERVED_PORTS]
;popad
;disable port access at port IO map
; pushad ; start disable io map
pop eax ;start port
cmp edx, 65536;16384
jge no_mask_io
; mov eax,ecx
xor ebp, ebp
inc ebp
new_port_access_disable:
; pushad
; mov ebp,1 ; disable - eax = port
call set_io_access_rights
; popad
inc eax
cmp eax, edx
jbe new_port_access_disable
no_mask_io:
; popad ; end disable io map
xor eax, eax
ret
;-----------------------------------------------------------------------------
align 4
drawbackground:
dbrv20:
cmp [BgrDrawMode], dword 1
jne bgrstr
call vesa20_drawbackground_tiled
; call [draw_pointer]
call __sys_draw_pointer
ret
;--------------------------------------
align 4
bgrstr:
call vesa20_drawbackground_stretch
; call [draw_pointer]
call __sys_draw_pointer
ret
;-----------------------------------------------------------------------------
align 4
syscall_putimage: ; PutImage
sys_putimage:
test ecx, 0x80008000
jnz .exit
test ecx, 0x0000FFFF
jz .exit
test ecx, 0xFFFF0000
jnz @f
;--------------------------------------
align 4
.exit:
ret
;--------------------------------------
align 4
@@:
mov edi, [current_slot]
add dx, word[edi+APPDATA.wnd_clientbox.top]
rol edx, 16
add dx, word[edi+APPDATA.wnd_clientbox.left]
rol edx, 16
;--------------------------------------
align 4
.forced:
push ebp esi 0
mov ebp, putimage_get24bpp
mov esi, putimage_init24bpp
;--------------------------------------
align 4
sys_putimage_bpp:
call vesa20_putimage
pop ebp esi ebp
ret
; jmp [draw_pointer]
;-----------------------------------------------------------------------------
align 4
sys_putimage_palette:
; ebx = pointer to image
; ecx = [xsize]*65536 + [ysize]
; edx = [xstart]*65536 + [ystart]
; esi = number of bits per pixel, must be 8, 24 or 32
; edi = pointer to palette
; ebp = row delta
mov eax, [CURRENT_TASK]
shl eax, 8
add dx, word [eax+SLOT_BASE+APPDATA.wnd_clientbox.top]
rol edx, 16
add dx, word [eax+SLOT_BASE+APPDATA.wnd_clientbox.left]
rol edx, 16
;--------------------------------------
align 4
.forced:
cmp esi, 1
jnz @f
push edi
mov eax, [edi+4]
sub eax, [edi]
push eax
push dword [edi]
push 0ffffff80h
mov edi, esp
call put_mono_image
add esp, 12
pop edi
ret
;--------------------------------------
align 4
@@:
cmp esi, 2
jnz @f
push edi
push 0ffffff80h
mov edi, esp
call put_2bit_image
pop eax
pop edi
ret
;--------------------------------------
align 4
@@:
cmp esi, 4
jnz @f
push edi
push 0ffffff80h
mov edi, esp
call put_4bit_image
pop eax
pop edi
ret
;--------------------------------------
align 4
@@:
push ebp esi ebp
cmp esi, 8
jnz @f
mov ebp, putimage_get8bpp
mov esi, putimage_init8bpp
jmp sys_putimage_bpp
;--------------------------------------
align 4
@@:
cmp esi, 9
jnz @f
mov ebp, putimage_get9bpp
mov esi, putimage_init9bpp
jmp sys_putimage_bpp
;--------------------------------------
align 4
@@:
cmp esi, 15
jnz @f
mov ebp, putimage_get15bpp
mov esi, putimage_init15bpp
jmp sys_putimage_bpp
;--------------------------------------
align 4
@@:
cmp esi, 16
jnz @f
mov ebp, putimage_get16bpp
mov esi, putimage_init16bpp
jmp sys_putimage_bpp
;--------------------------------------
align 4
@@:
cmp esi, 24
jnz @f
mov ebp, putimage_get24bpp
mov esi, putimage_init24bpp
jmp sys_putimage_bpp
;--------------------------------------
align 4
@@:
cmp esi, 32
jnz @f
mov ebp, putimage_get32bpp
mov esi, putimage_init32bpp
jmp sys_putimage_bpp
;--------------------------------------
align 4
@@:
pop ebp esi ebp
ret
;-----------------------------------------------------------------------------
align 4
put_mono_image:
push ebp esi ebp
mov ebp, putimage_get1bpp
mov esi, putimage_init1bpp
jmp sys_putimage_bpp
;-----------------------------------------------------------------------------
align 4
put_2bit_image:
push ebp esi ebp
mov ebp, putimage_get2bpp
mov esi, putimage_init2bpp
jmp sys_putimage_bpp
;-----------------------------------------------------------------------------
align 4
put_4bit_image:
push ebp esi ebp
mov ebp, putimage_get4bpp
mov esi, putimage_init4bpp
jmp sys_putimage_bpp
;-----------------------------------------------------------------------------
align 4
putimage_init24bpp:
lea eax, [eax*3]
putimage_init8bpp:
putimage_init9bpp:
ret
;-----------------------------------------------------------------------------
align 16
putimage_get24bpp:
movzx eax, byte [esi+2]
shl eax, 16
mov ax, [esi]
add esi, 3
ret 4
;-----------------------------------------------------------------------------
align 16
putimage_get8bpp:
movzx eax, byte [esi]
push edx
mov edx, [esp+8]
mov eax, [edx+eax*4]
pop edx
inc esi
ret 4
;-----------------------------------------------------------------------------
align 16
putimage_get9bpp:
lodsb
mov ah, al
shl eax, 8
mov al, ah
ret 4
;-----------------------------------------------------------------------------
align 4
putimage_init1bpp:
add eax, ecx
push ecx
add eax, 7
add ecx, 7
shr eax, 3
shr ecx, 3
sub eax, ecx
pop ecx
ret
;-----------------------------------------------------------------------------
align 16
putimage_get1bpp:
push edx
mov edx, [esp+8]
mov al, [edx]
add al, al
jnz @f
lodsb
adc al, al
@@:
mov [edx], al
sbb eax, eax
and eax, [edx+8]
add eax, [edx+4]
pop edx
ret 4
;-----------------------------------------------------------------------------
align 4
putimage_init2bpp:
add eax, ecx
push ecx
add ecx, 3
add eax, 3
shr ecx, 2
shr eax, 2
sub eax, ecx
pop ecx
ret
;-----------------------------------------------------------------------------
align 16
putimage_get2bpp:
push edx
mov edx, [esp+8]
mov al, [edx]
mov ah, al
shr al, 6
shl ah, 2
jnz .nonewbyte
lodsb
mov ah, al
shr al, 6
shl ah, 2
add ah, 1
.nonewbyte:
mov [edx], ah
mov edx, [edx+4]
movzx eax, al
mov eax, [edx+eax*4]
pop edx
ret 4
;-----------------------------------------------------------------------------
align 4
putimage_init4bpp:
add eax, ecx
push ecx
add ecx, 1
add eax, 1
shr ecx, 1
shr eax, 1
sub eax, ecx
pop ecx
ret
;-----------------------------------------------------------------------------
align 16
putimage_get4bpp:
push edx
mov edx, [esp+8]
add byte [edx], 80h
jc @f
movzx eax, byte [edx+1]
mov edx, [edx+4]
and eax, 0x0F
mov eax, [edx+eax*4]
pop edx
ret 4
@@:
movzx eax, byte [esi]
add esi, 1
mov [edx+1], al
shr eax, 4
mov edx, [edx+4]
mov eax, [edx+eax*4]
pop edx
ret 4
;-----------------------------------------------------------------------------
align 4
putimage_init32bpp:
shl eax, 2
ret
;-----------------------------------------------------------------------------
align 16
putimage_get32bpp:
lodsd
ret 4
;-----------------------------------------------------------------------------
align 4
putimage_init15bpp:
putimage_init16bpp:
add eax, eax
ret
;-----------------------------------------------------------------------------
align 16
putimage_get15bpp:
; 0RRRRRGGGGGBBBBB -> 00000000RRRRR000GGGGG000BBBBB000
push ecx edx
movzx eax, word [esi]
add esi, 2
mov ecx, eax
mov edx, eax
and eax, 0x1F
and ecx, 0x1F shl 5
and edx, 0x1F shl 10
shl eax, 3
shl ecx, 6
shl edx, 9
or eax, ecx
or eax, edx
pop edx ecx
ret 4
;-----------------------------------------------------------------------------
align 16
putimage_get16bpp:
; RRRRRGGGGGGBBBBB -> 00000000RRRRR000GGGGGG00BBBBB000
push ecx edx
movzx eax, word [esi]
add esi, 2
mov ecx, eax
mov edx, eax
and eax, 0x1F
and ecx, 0x3F shl 5
and edx, 0x1F shl 11
shl eax, 3
shl ecx, 5
shl edx, 8
or eax, ecx
or eax, edx
pop edx ecx
ret 4
;-----------------------------------------------------------------------------
;align 4
; eax x beginning
; ebx y beginning
; ecx x end
; edx y end
; edi color
;__sys_drawbar:
; mov esi, [current_slot]
; add eax, [esi+APPDATA.wnd_clientbox.left]
; add ecx, [esi+APPDATA.wnd_clientbox.left]
; add ebx, [esi+APPDATA.wnd_clientbox.top]
; add edx, [esi+APPDATA.wnd_clientbox.top]
;--------------------------------------
;align 4
;.forced:
; call vesa20_drawbar
; call [draw_pointer]
; ret
;-----------------------------------------------------------------------------
align 4
kb_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
;-----------------------------------------------------------------------------
align 4
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
;-----------------------------------------------------------------------------
align 4
kb_cmd:
mov ecx, 0x1ffff; last 0xffff, new value in view of fast CPU's
c_wait:
in al, 0x64
test al, 2
jz c_send
loop c_wait
jmp c_error
c_send:
mov al, bl
out 0x64, al
mov ecx, 0x1ffff; last 0xffff, new value in view of fast CPU's
c_accept:
in al, 0x64
test al, 2
jz c_ok
loop c_accept
c_error:
mov ah, 1
jmp c_exit
c_ok:
xor ah, ah
c_exit:
ret
setmouse: ; set mousepicture -pointer
; ps2 mouse enable
; mov [MOUSE_PICTURE], dword mousepointer
cli
ret
if used _rdtsc
_rdtsc:
bt [cpu_caps], CAPS_TSC
jnc ret_rdtsc
rdtsc
ret
ret_rdtsc:
mov edx, 0xffffffff
mov eax, 0xffffffff
ret
end if
sys_msg_board_str:
pushad
@@:
cmp [esi], byte 0
je @f
mov ebx, 1
movzx ecx, byte [esi]
call sys_msg_board
inc esi
jmp @b
@@:
popad
ret
sys_msg_board_byte:
; in: al = byte to display
; out: nothing
; destroys: nothing
pushad
mov ecx, 2
shl eax, 24
jmp @f
sys_msg_board_word:
; in: ax = word to display
; out: nothing
; destroys: nothing
pushad
mov ecx, 4
shl eax, 16
jmp @f
sys_msg_board_dword:
; in: eax = dword to display
; out: nothing
; destroys: nothing
pushad
mov ecx, 8
@@:
push ecx
rol eax, 4
push eax
and al, 0xF
cmp al, 10
sbb al, 69h
das
mov cl, al
xor ebx, ebx
inc ebx
call sys_msg_board
pop eax
pop ecx
loop @b
popad
ret
msg_board_data_size = 65536 ; Must be power of two
uglobal
msg_board_data rb msg_board_data_size
msg_board_count dd 0x0
endg
sys_msg_board:
; ebx=1 : write : bl byte to write
; ebx=2 : read : ebx=0 -> no data, ebx=1 -> data in al
push eax ebx ; Save eax and ebx, since we're restoring their order required.
mov eax, ebx
mov ebx, ecx
mov ecx, [msg_board_count]
cmp eax, 1
jne .smbl1
if defined debug_com_base
push dx ax
@@: ; Wait for empty transmit register (yes, this slows down system..)
mov dx, debug_com_base+5
in al, dx
test al, 1 shl 5
jz @r
mov dx, debug_com_base ; Output the byte
mov al, bl
out dx, al
pop ax dx
end if
mov [msg_board_data+ecx], bl
; // if debug_direct_print == 1
cmp byte [debug_direct_print], 1
jnz @f
pusha
iglobal
msg_board_pos dd (42*6)*65536+10 ; for printing debug output on the screen
endg
lea edx, [msg_board_data+ecx]
mov ecx, 0x40FFFFFF
mov ebx, [msg_board_pos]
mov edi, 1
mov esi, 1
call dtext
popa
add word [msg_board_pos+2], 6
cmp bl, 10
jnz @f
mov word [msg_board_pos+2], (42*6)
add word [msg_board_pos], 10
mov ax, word [Screen_Max_Y]
cmp word [msg_board_pos], ax
jbe @f
mov word [msg_board_pos], 10
@@:
; // end if
if 0
pusha
mov al, bl
mov edx, 402h
out dx, al
popa
end if
inc ecx
and ecx, msg_board_data_size - 1
mov [msg_board_count], ecx
pop ebx eax
ret
.smbl1:
cmp eax, 2
jne .smbl2
test ecx, ecx
jz .smbl21
add esp, 8 ; Returning data in ebx and eax, so no need to restore them.
mov eax, msg_board_data+1
mov ebx, msg_board_data
movzx edx, byte [ebx]
call memmove
dec [msg_board_count]
mov [esp + 32], edx ;eax
mov [esp + 20], dword 1
ret
.smbl21:
mov [esp+32], ecx
mov [esp+20], ecx
.smbl2:
pop ebx eax
ret
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; 66 sys function. ;;
;; in eax=66,ebx in [0..5],ecx,edx ;;
;; out eax ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
iglobal
align 4
f66call:
dd sys_process_def.1 ; 1 = set keyboard mode
dd sys_process_def.2 ; 2 = get keyboard mode
dd sys_process_def.3 ; 3 = get keyboard ctrl, alt, shift
dd sys_process_def.4 ; 4 = set system-wide hotkey
dd sys_process_def.5 ; 5 = delete installed hotkey
dd sys_process_def.6 ; 6 = disable input, work only hotkeys
dd sys_process_def.7 ; 7 = enable input, opposition to f.66.6
endg
;-----------------------------------------------------------------------------
align 4
sys_process_def:
dec ebx
cmp ebx, 7
jae .not_support ;if >=8 then or eax,-1
mov edi, [CURRENT_TASK]
jmp dword [f66call+ebx*4]
.not_support:
or eax, -1
ret
;-----------------------------------------------------------------------------
align 4
.1:
shl edi, 8
mov [edi+SLOT_BASE + APPDATA.keyboard_mode], cl
ret
;-----------------------------------------------------------------------------
align 4
.2: ; 2 = get keyboard mode
shl edi, 8
movzx eax, byte [SLOT_BASE+edi + APPDATA.keyboard_mode]
mov [esp+32], eax
ret
;-----------------------------------------------------------------------------
align 4
.3: ;3 = get keyboard ctrl, alt, shift
mov eax, [kb_state]
mov [esp+32], eax
ret
;-----------------------------------------------------------------------------
align 4
.4:
mov eax, hotkey_list
@@:
cmp dword [eax+8], 0
jz .found_free
add eax, 16
cmp eax, hotkey_list+16*256
jb @b
mov dword [esp+32], 1
ret
.found_free:
mov [eax+8], edi
mov [eax+4], edx
movzx ecx, cl
lea ecx, [hotkey_scancodes+ecx*4]
mov edx, [ecx]
mov [eax], edx
mov [ecx], eax
mov [eax+12], ecx
test edx, edx
jz @f
mov [edx+12], eax
@@:
and dword [esp+32], 0
ret
;-----------------------------------------------------------------------------
align 4
.5:
movzx ebx, cl
lea ebx, [hotkey_scancodes+ebx*4]
mov eax, [ebx]
.scan:
test eax, eax
jz .notfound
cmp [eax+8], edi
jnz .next
cmp [eax+4], edx
jz .found
.next:
mov eax, [eax]
jmp .scan
.notfound:
mov dword [esp+32], 1
ret
.found:
mov ecx, [eax]
jecxz @f
mov edx, [eax+12]
mov [ecx+12], edx
@@:
mov ecx, [eax+12]
mov edx, [eax]
mov [ecx], edx
xor edx, edx
mov [eax+4], edx
mov [eax+8], edx
mov [eax+12], edx
mov [eax], edx
mov [esp+32], edx
ret
;-----------------------------------------------------------------------------
align 4
.6:
pushfd
cli
mov eax, [PID_lock_input]
test eax, eax
jnz @f
; get current PID
mov eax, [CURRENT_TASK]
shl eax, 5
mov eax, [eax+CURRENT_TASK+TASKDATA.pid]
; set current PID for lock input
mov [PID_lock_input], eax
@@:
popfd
ret
;-----------------------------------------------------------------------------
align 4
.7:
mov eax, [PID_lock_input]
test eax, eax
jz @f
; get current PID
mov ebx, [CURRENT_TASK]
shl ebx, 5
mov ebx, [ebx+CURRENT_TASK+TASKDATA.pid]
; compare current lock input with current PID
cmp ebx, eax
jne @f
xor eax, eax
mov [PID_lock_input], eax
@@:
ret
;-----------------------------------------------------------------------------
uglobal
PID_lock_input dd 0x0
endg
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; 61 sys function. ;;
;; in eax=61,ebx in [1..3] ;;
;; out eax ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
iglobal
align 4
f61call:
dd sys_gs.1 ; resolution
dd sys_gs.2 ; bits per pixel
dd sys_gs.3 ; bytes per scanline
endg
align 4
sys_gs: ; direct screen access
dec ebx
cmp ebx, 2
ja .not_support
jmp dword [f61call+ebx*4]
.not_support:
or [esp+32], dword -1
ret
.1: ; resolution
mov eax, [Screen_Max_X]
shl eax, 16
mov ax, word [Screen_Max_Y]
add eax, 0x00010001
mov [esp+32], eax
ret
.2: ; bits per pixel
mov eax, [_display.bpp]
mov [esp+32], eax
ret
.3: ; bytes per scanline
mov eax, [_display.pitch]
mov [esp+32], eax
ret
align 4 ; system functions
syscall_setpixel: ; SetPixel
mov eax, ebx
mov ebx, ecx
mov ecx, edx
mov edx, [TASK_BASE]
add eax, [edx-twdw+WDATA.box.left]
add ebx, [edx-twdw+WDATA.box.top]
mov edi, [current_slot]
add eax, [edi+APPDATA.wnd_clientbox.left]
add ebx, [edi+APPDATA.wnd_clientbox.top]
xor edi, edi ; no force
and ecx, 0xFBFFFFFF ;negate 0x04000000 save to mouseunder area
; jmp [putpixel]
jmp __sys_putpixel
align 4
syscall_writetext: ; WriteText
mov eax, [TASK_BASE]
mov ebp, [eax-twdw+WDATA.box.left]
push esi
mov esi, [current_slot]
add ebp, [esi+APPDATA.wnd_clientbox.left]
shl ebp, 16
add ebp, [eax-twdw+WDATA.box.top]
add bp, word[esi+APPDATA.wnd_clientbox.top]
pop esi
test ecx, 0x08000000 ; redirect the output to the user area
jnz @f
add ebx, ebp
align 4
@@:
mov eax, edi
test ecx, 0x08000000 ; redirect the output to the user area
jnz dtext
xor edi, edi
jmp dtext
align 4
syscall_drawrect: ; DrawRect
mov edi, edx ; color + gradient
and edi, 0x80FFFFFF
test bx, bx ; x.size
je .drectr
test cx, cx ; y.size
je .drectr
mov eax, ebx ; bad idea
mov ebx, ecx
movzx ecx, ax ; ecx - x.size
shr eax, 16 ; eax - x.coord
movzx edx, bx ; edx - y.size
shr ebx, 16 ; ebx - y.coord
mov esi, [current_slot]
add eax, [esi + APPDATA.wnd_clientbox.left]
add ebx, [esi + APPDATA.wnd_clientbox.top]
add ecx, eax
add edx, ebx
; jmp [drawbar]
jmp vesa20_drawbar
.drectr:
ret
align 4
syscall_getscreensize: ; GetScreenSize
mov ax, word [Screen_Max_X]
shl eax, 16
mov ax, word [Screen_Max_Y]
mov [esp + 32], eax
ret
align 4
syscall_cdaudio: ; CD
cmp ebx, 4
jb .audio
jz .eject
cmp ebx, 5
jnz .ret
.load:
call .reserve
call LoadMedium
;call .free
jmp .free
; ret
.eject:
call .reserve
call clear_CD_cache
call allow_medium_removal
call EjectMedium
; call .free
jmp .free
; ret
.audio:
call sys_cd_audio
mov [esp+36-4], eax
.ret:
ret
.reserve:
call reserve_cd
mov eax, ecx
shr eax, 1
and eax, 1
inc eax
mov [ChannelNumber], ax
mov eax, ecx
and eax, 1
mov [DiskNumber], al
call reserve_cd_channel
and ebx, 3
inc ebx
mov [cdpos], ebx
add ebx, ebx
mov cl, 8
sub cl, bl
mov al, [DRIVE_DATA+1]
shr al, cl
test al, 2
jz .free;.err
ret
.free:
call free_cd_channel
and [cd_status], 0
ret
.err:
call .free
; pop eax
ret
;-----------------------------------------------------------------------------
align 4
syscall_getpixel_WinMap: ; GetPixel WinMap
cmp ebx, [Screen_Max_X]
jbe @f
cmp ecx, [Screen_Max_Y]
jbe @f
xor eax, eax
jmp .store
;--------------------------------------
align 4
@@:
mov eax, [d_width_calc_area + ecx*4]
add eax, [_WinMapAddress]
movzx eax, byte[eax+ebx] ; get value for current point
;--------------------------------------
align 4
.store:
mov [esp + 32], eax
ret
;-----------------------------------------------------------------------------
align 4
syscall_getpixel: ; GetPixel
mov ecx, [Screen_Max_X]
inc ecx
xor edx, edx
mov eax, ebx
div ecx
mov ebx, edx
xchg eax, ebx
and ecx, 0xFBFFFFFF ;negate 0x04000000 use mouseunder area
call dword [GETPIXEL]; eax - x, ebx - y
mov [esp + 32], ecx
ret
;-----------------------------------------------------------------------------
align 4
syscall_getarea:
;eax = 36
;ebx = pointer to bufer for img BBGGRRBBGGRR...
;ecx = [size x]*65536 + [size y]
;edx = [start x]*65536 + [start y]
pushad
mov edi, ebx
mov eax, edx
shr eax, 16
mov ebx, edx
and ebx, 0xffff
dec eax
dec ebx
; eax - x, ebx - y
mov edx, ecx
shr ecx, 16
and edx, 0xffff
mov esi, ecx
; ecx - size x, edx - size y
mov ebp, edx
dec ebp
lea ebp, [ebp*3]
imul ebp, esi
mov esi, ecx
dec esi
lea esi, [esi*3]
add ebp, esi
add ebp, edi
add ebx, edx
;--------------------------------------
align 4
.start_y:
push ecx edx
;--------------------------------------
align 4
.start_x:
push eax ebx ecx
add eax, ecx
and ecx, 0xFBFFFFFF ;negate 0x04000000 use mouseunder area
call dword [GETPIXEL]; eax - x, ebx - y
mov [ebp], cx
shr ecx, 16
mov [ebp+2], cl
pop ecx ebx eax
sub ebp, 3
dec ecx
jnz .start_x
pop edx ecx
dec ebx
dec edx
jnz .start_y
popad
ret
;-----------------------------------------------------------------------------
align 4
syscall_putarea_backgr:
;eax = 25
;ebx = pointer to bufer for img BBGGRRBBGGRR...
;ecx = [size x]*65536 + [size y]
;edx = [start x]*65536 + [start y]
pushad
mov edi, ebx
mov eax, edx
shr eax, 16
mov ebx, edx
and ebx, 0xffff
dec eax
dec ebx
; eax - x, ebx - y
mov edx, ecx
shr ecx, 16
and edx, 0xffff
mov esi, ecx
; ecx - size x, edx - size y
mov ebp, edx
dec ebp
shl ebp, 2
imul ebp, esi
mov esi, ecx
dec esi
shl esi, 2
add ebp, esi
add ebp, edi
add ebx, edx
;--------------------------------------
align 4
.start_y:
push ecx edx
;--------------------------------------
align 4
.start_x:
push eax ecx
add eax, ecx
mov ecx, [ebp]
rol ecx, 8
test cl, cl ; transparensy = 0
jz .no_put
xor cl, cl
ror ecx, 8
pushad
mov edx, [d_width_calc_area + ebx*4]
add edx, [_WinMapAddress]
movzx edx, byte [eax+edx]
cmp dl, byte 1
jne @f
call dword [PUTPIXEL]; eax - x, ebx - y
;--------------------------------------
align 4
@@:
popad
;--------------------------------------
align 4
.no_put:
pop ecx eax
sub ebp, 4
dec ecx
jnz .start_x
pop edx ecx
dec ebx
dec edx
jnz .start_y
popad
ret
;-----------------------------------------------------------------------------
align 4
syscall_drawline: ; DrawLine
mov edi, [TASK_BASE]
movzx eax, word[edi-twdw+WDATA.box.left]
mov ebp, eax
mov esi, [current_slot]
add ebp, [esi+APPDATA.wnd_clientbox.left]
add ax, word[esi+APPDATA.wnd_clientbox.left]
add ebp, ebx
shl eax, 16
movzx ebx, word[edi-twdw+WDATA.box.top]
add eax, ebp
mov ebp, ebx
add ebp, [esi+APPDATA.wnd_clientbox.top]
add bx, word[esi+APPDATA.wnd_clientbox.top]
add ebp, ecx
shl ebx, 16
xor edi, edi
add ebx, ebp
mov ecx, edx
; jmp [draw_line]
jmp __sys_draw_line
align 4
syscall_reserveportarea: ; ReservePortArea and FreePortArea
call r_f_port_area
mov [esp+32], eax
ret
align 4
syscall_threads: ; CreateThreads
;
; ecx=thread entry point
; edx=thread stack pointer
;
; on return : eax = pid
xor ebx, ebx
call new_sys_threads
mov [esp+32], eax
ret
align 4
paleholder:
ret
;------------------------------------------------------------------------------
align 4
calculate_fast_getting_offset_for_WinMapAddress:
; calculate data area for fast getting offset to _WinMapAddress
xor eax, eax
mov ecx, [_display.height]
mov edi, d_width_calc_area
cld
@@:
stosd
add eax, [_display.width]
dec ecx
jnz @r
ret
;------------------------------------------------------------------------------
align 4
calculate_fast_getting_offset_for_LFB:
; calculate data area for fast getting offset to LFB
xor eax, eax
mov ecx, [_display.height]
mov edi, BPSLine_calc_area
cld
@@:
stosd
add eax, [_display.pitch]
dec ecx
jnz @r
ret
;------------------------------------------------------------------------------
align 4
set_screen:
; in:
; eax - new Screen_Max_X
; ecx - new BytesPerScanLine
; edx - new Screen_Max_Y
pushfd
cli
mov [Screen_Max_X], eax
mov [Screen_Max_Y], edx
mov [_display.pitch], ecx
mov [screen_workarea.right], eax
mov [screen_workarea.bottom], edx
push ebx
push esi
push edi
pushad
cmp [do_not_touch_winmap], 1
je @f
stdcall kernel_free, [_WinMapAddress]
mov eax, [_display.width]
mul [_display.height]
mov [_WinMapSize], eax
stdcall kernel_alloc, eax
mov [_WinMapAddress], eax
test eax, eax
jz .epic_fail
; store for f.18.24
mov eax, [_display.width]
mov [display_width_standard], eax
mov eax, [_display.height]
mov [display_height_standard], eax
@@:
call calculate_fast_getting_offset_for_WinMapAddress
; for Qemu or non standart video cards
; Unfortunately [BytesPerScanLine] does not always
; equal to [_display.width] * [ScreenBPP] / 8
call calculate_fast_getting_offset_for_LFB
popad
call repos_windows
xor eax, eax
xor ebx, ebx
mov ecx, [Screen_Max_X]
mov edx, [Screen_Max_Y]
call calculatescreen
pop edi
pop esi
pop ebx
popfd
ret
.epic_fail:
hlt ; Houston, we've had a problem
; --------------- APM ---------------------
uglobal
apm_entry dp 0
apm_vf dd 0
endg
align 4
sys_apm:
xor eax, eax
cmp word [apm_vf], ax ; Check APM BIOS enable
jne @f
inc eax
or dword [esp + 44], eax ; error
add eax, 7
mov dword [esp + 32], eax ; 32-bit protected-mode interface not supported
ret
@@:
; xchg eax, ecx
; xchg ebx, ecx
cmp dx, 3
ja @f
and [esp + 44], byte 0xfe ; emulate func 0..3 as func 0
mov eax, [apm_vf]
mov [esp + 32], eax
shr eax, 16
mov [esp + 28], eax
ret
@@:
mov esi, [master_tab+(OS_BASE shr 20)]
xchg [master_tab], esi
push esi
mov edi, cr3
mov cr3, edi ;flush TLB
call pword [apm_entry] ;call APM BIOS
xchg eax, [esp]
mov [master_tab], eax
mov eax, cr3
mov cr3, eax
pop eax
mov [esp + 4 ], edi
mov [esp + 8], esi
mov [esp + 20], ebx
mov [esp + 24], edx
mov [esp + 28], ecx
mov [esp + 32], eax
setc al
and [esp + 44], byte 0xfe
or [esp + 44], al
ret
; -----------------------------------------
align 4
undefined_syscall: ; Undefined system call
mov [esp + 32], dword -1
ret
align 4
system_shutdown: ; shut down the system
cmp byte [BOOT_VARS+0x9030], 1
jne @F
ret
@@:
call stop_all_services
movi eax, 3
call sys_cd_audio
yes_shutdown_param:
cli
if ~ defined extended_primary_loader
; load kernel.mnt to 0x7000:0
mov ebx, kernel_file_load
pushad
call file_system_lfn
popad
mov esi, restart_kernel_4000+OS_BASE+0x10000 ; move kernel re-starter to 0x4000:0
mov edi, OS_BASE+0x40000
mov ecx, 1000
rep movsb
end if
; mov esi, BOOT_VAR ; restore 0x0 - 0xffff
; mov edi, OS_BASE
; mov ecx, 0x10000/4
; cld
; rep movsd
call IRQ_mask_all
if 0
mov word [OS_BASE+0x467+0], pr_mode_exit
mov word [OS_BASE+0x467+2], 0x1000
mov al, 0x0F
out 0x70, al
mov al, 0x05
out 0x71, al
mov al, 0xFE
out 0x64, al
hlt
jmp $-1
else
cmp byte [OS_BASE + 0x9030], 2
jnz no_acpi_power_off
; scan for RSDP
; 1) The first 1 Kb of the Extended BIOS Data Area (EBDA).
movzx eax, word [OS_BASE + 0x40E]
shl eax, 4
jz @f
mov ecx, 1024/16
call scan_rsdp
jnc .rsdp_found
@@:
; 2) The BIOS read-only memory space between 0E0000h and 0FFFFFh.
mov eax, 0xE0000
mov ecx, 0x2000
call scan_rsdp
jc no_acpi_power_off
.rsdp_found:
mov esi, [eax+16] ; esi contains physical address of the RSDT
mov ebp, [ipc_tmp]
stdcall map_page, ebp, esi, PG_MAP
lea eax, [esi+1000h]
lea edx, [ebp+1000h]
stdcall map_page, edx, eax, PG_MAP
and esi, 0xFFF
add esi, ebp
cmp dword [esi], 'RSDT'
jnz no_acpi_power_off
mov ecx, [esi+4]
sub ecx, 24h
jbe no_acpi_power_off
shr ecx, 2
add esi, 24h
.scan_fadt:
lodsd
mov ebx, eax
lea eax, [ebp+2000h]
stdcall map_page, eax, ebx, PG_MAP
lea eax, [ebp+3000h]
add ebx, 0x1000
stdcall map_page, eax, ebx, PG_MAP
and ebx, 0xFFF
lea ebx, [ebx+ebp+2000h]
cmp dword [ebx], 'FACP'
jz .fadt_found
loop .scan_fadt
jmp no_acpi_power_off
.fadt_found:
; ebx is linear address of FADT
mov edi, [ebx+40] ; physical address of the DSDT
lea eax, [ebp+4000h]
stdcall map_page, eax, edi, PG_MAP
lea eax, [ebp+5000h]
lea esi, [edi+0x1000]
stdcall map_page, eax, esi, PG_MAP
and esi, 0xFFF
sub edi, esi
cmp dword [esi+ebp+4000h], 'DSDT'
jnz no_acpi_power_off
mov eax, [esi+ebp+4004h] ; DSDT length
sub eax, 36+4
jbe no_acpi_power_off
add esi, 36
.scan_dsdt:
cmp dword [esi+ebp+4000h], '_S5_'
jnz .scan_dsdt_cont
cmp byte [esi+ebp+4000h+4], 12h ; DefPackage opcode
jnz .scan_dsdt_cont
mov dl, [esi+ebp+4000h+6]
cmp dl, 4 ; _S5_ package must contain 4 bytes
; ...in theory; in practice, VirtualBox has 2 bytes
ja .scan_dsdt_cont
cmp dl, 1
jb .scan_dsdt_cont
lea esi, [esi+ebp+4000h+7]
xor ecx, ecx
cmp byte [esi], 0 ; 0 means zero byte, 0Ah xx means byte xx
jz @f
cmp byte [esi], 0xA
jnz no_acpi_power_off
inc esi
mov cl, [esi]
@@:
inc esi
cmp dl, 2
jb @f
cmp byte [esi], 0
jz @f
cmp byte [esi], 0xA
jnz no_acpi_power_off
inc esi
mov ch, [esi]
@@:
jmp do_acpi_power_off
.scan_dsdt_cont:
inc esi
cmp esi, 0x1000
jb @f
sub esi, 0x1000
add edi, 0x1000
push eax
lea eax, [ebp+4000h]
stdcall map_page, eax, edi, PG_MAP
push PG_MAP
lea eax, [edi+1000h]
push eax
lea eax, [ebp+5000h]
push eax
stdcall map_page
pop eax
@@:
dec eax
jnz .scan_dsdt
jmp no_acpi_power_off
do_acpi_power_off:
mov edx, [ebx+48]
test edx, edx
jz .nosmi
mov al, [ebx+52]
out dx, al
mov edx, [ebx+64]
@@:
in ax, dx
test al, 1
jz @b
.nosmi:
and cx, 0x0707
shl cx, 2
or cx, 0x2020
mov edx, [ebx+64]
in ax, dx
and ax, 203h
or ah, cl
out dx, ax
mov edx, [ebx+68]
test edx, edx
jz @f
in ax, dx
and ax, 203h
or ah, ch
out dx, ax
@@:
jmp $
no_acpi_power_off:
mov word [OS_BASE+0x467+0], pr_mode_exit
mov word [OS_BASE+0x467+2], 0x1000
mov al, 0x0F
out 0x70, al
mov al, 0x05
out 0x71, al
mov al, 0xFE
out 0x64, al
hlt
jmp $-1
scan_rsdp:
add eax, OS_BASE
.s:
cmp dword [eax], 'RSD '
jnz .n
cmp dword [eax+4], 'PTR '
jnz .n
xor edx, edx
xor esi, esi
@@:
add dl, [eax+esi]
inc esi
cmp esi, 20
jnz @b
test dl, dl
jz .ok
.n:
add eax, 10h
loop .s
stc
.ok:
ret
end if
if ~ lang eq sp
diff16 "end of .text segment",0,$
end if
include "data32.inc"
__REV__ = __REV
if ~ lang eq sp
diff16 "end of kernel code",0,$
end if
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