;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; Copyright (C) KolibriOS team 2004-2007. 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)
;;
;; 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.
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
include 'macros.inc'
$Revision: 652 $
USE_COM_IRQ equ 0 ;make irq 3 and irq 4 available for PCI devices
include "proc32.inc"
include "kglobals.inc"
include "lang.inc"
include "const.inc"
max_processes equ 255
tss_step equ (128+8192) ; tss & i/o - 65535 ports, * 256=557056*4
os_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)
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
version db 'Kolibri OS version 0.7.1.0 ',13,10,13,10,0
include "boot/bootstr.inc" ; language-independent boot messages
include "boot/preboot.inc"
if lang eq en
include "boot/booteng.inc" ; english system boot messages
else if lang eq ru
include "boot/bootru.inc" ; russian system boot messages
include "boot/ru.inc" ; Russian font
else if lang eq et
include "boot/bootet.inc" ; estonian system boot messages
include "boot/et.inc" ; Estonian font
else
include "boot/bootge.inc" ; german system boot messages
end if
include "boot/bootcode.inc" ; 16 bit system boot code
include "bus/pci/pci16.inc"
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; SWITCH TO 32 BIT PROTECTED MODE ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; CR0 Flags - Protected mode and Paging
mov ecx, CR0_PE
; Enabling 32 bit protected mode
sidt [cs:old_ints_h]
cli ; disable all irqs
cld
mov al,255 ; mask all irqs
out 0xa1,al
out 0x21,al
l.5: in al, 0x64 ; Enable A20
test al, 2
jnz l.5
mov al, 0xD1
out 0x64, al
l.6: in al, 0x64
test al, 2
jnz l.6
mov al, 0xDF
out 0x60, al
l.7: in al, 0x64
test al, 2
jnz l.7
mov al, 0xFF
out 0x64, al
lgdt [cs:tmp_gdt] ; Load GDT
mov eax, cr0 ; protected mode
or eax, ecx
and eax, 10011111b *65536*256 + 0xffffff ; caching enabled
mov cr0, eax
jmp pword os_code:B32 ; jmp to enable 32 bit mode
align 8
tmp_gdt:
dw 23
dd tmp_gdt+0x10000
dw 0
dw 0xffff
dw 0x0000
db 0x00
dw 11011111b *256 +10011010b
db 0x00
dw 0xffff
dw 0x0000
db 0x00
dw 11011111b *256 +10010010b
db 0x00
include "data16.inc"
use32
org $+0x10000
align 4
B32:
mov ax,os_stack ; Selector for os
mov ds,ax
mov es,ax
mov fs,ax
mov gs,ax
mov ss,ax
mov esp,0x3ec00 ; Set stack
; CLEAR 0x280000 - HEAP_BASE
xor eax,eax
mov edi,0x280000
mov ecx,(HEAP_BASE-OS_BASE-0x280000) / 4
cld
rep stosd
mov edi,0x40000
mov ecx,(0x90000-0x40000)/4
rep stosd
; CLEAR KERNEL UNDEFINED GLOBALS
mov edi, endofcode-OS_BASE
mov ecx, (uglobals_size/4)+4
rep stosd
; SAVE & CLEAR 0-0xffff
xor esi, esi
mov edi,0x2F0000
mov ecx,0x10000 / 4
rep movsd
xor edi, edi
mov ecx,0x10000 / 4
rep stosd
call test_cpu
bts [cpu_caps-OS_BASE], CAPS_TSC ;force use rdtsc
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 $+0x10000
use32
__DEBUG__ fix 1
__DEBUG_LEVEL__ fix 1
include 'init.inc'
org OS_BASE+$
align 4
high_code:
mov ax,os_stack
mov bx,app_data
mov ss,ax
add esp, OS_BASE
mov ds,bx
mov es,bx
mov fs,bx
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
; SAVE REAL MODE VARIABLES
mov ax, [BOOT_VAR + 0x9031]
mov [IDEContrRegsBaseAddr], ax
; --------------- APM ---------------------
; init selectors
mov ebx, [BOOT_VAR+0x9040] ; offset of APM entry point
movzx eax, word [BOOT_VAR+0x9050] ; real-mode segment base address of
; protected-mode 32-bit code segment
movzx ecx, word [BOOT_VAR+0x9052] ; real-mode segment base address of
; protected-mode 16-bit code segment
movzx edx, word [BOOT_VAR+0x9054] ; 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_VAR + 0x9044] ; version & flags
mov [apm_vf], eax
; -----------------------------------------
; movzx eax,byte [BOOT_VAR+0x9010] ; mouse port
; mov [0xF604],byte 1 ;al
mov al, [BOOT_VAR+0x901F] ; DMA access
mov [allow_dma_access], al
mov al,[BOOT_VAR+0x9000] ; bpp
mov [ScreenBPP],al
movzx eax,word [BOOT_VAR+0x900A] ; X max
dec eax
mov [ScreenWidth],eax
mov [screen_workarea.right],eax
movzx eax,word [BOOT_VAR+0x900C] ; Y max
dec eax
mov [ScreenHeight],eax
mov [screen_workarea.bottom],eax
movzx eax,word [BOOT_VAR+0x9008] ; screen mode
mov [SCR_MODE],eax
mov eax,[BOOT_VAR+0x9014] ; Vesa 1.2 bnk sw add
mov [BANK_SWITCH],eax
mov [BytesPerScanLine],word 640*4 ; Bytes PerScanLine
cmp [SCR_MODE],word 0x13 ; 320x200
je @f
cmp [SCR_MODE],word 0x12 ; VGA 640x480
je @f
mov ax,[BOOT_VAR+0x9001] ; for other modes
mov [BytesPerScanLine],ax
@@:
; GRAPHICS ADDRESSES
mov byte [BOOT_VAR+0x901e],0x0
mov eax,[BOOT_VAR+0x9018]
mov [LFBAddress],eax
cmp [SCR_MODE],word 0100000000000000b
jge setvesa20
cmp [SCR_MODE],word 0x13
je v20ga32
mov [PUTPIXEL],dword Vesa12_putpixel24 ; Vesa 1.2
mov [GETPIXEL],dword Vesa12_getpixel24
cmp [ScreenBPP],byte 24
jz ga24
mov [PUTPIXEL],dword Vesa12_putpixel32
mov [GETPIXEL],dword Vesa12_getpixel32
ga24:
jmp v20ga24
setvesa20:
mov [PUTPIXEL],dword Vesa20_putpixel24 ; Vesa 2.0
mov [GETPIXEL],dword Vesa20_getpixel24
cmp [ScreenBPP],byte 24
jz v20ga24
v20ga32:
mov [PUTPIXEL],dword Vesa20_putpixel32
mov [GETPIXEL],dword Vesa20_getpixel32
v20ga24:
cmp [SCR_MODE],word 0x12 ; 16 C VGA 640x480
jne no_mode_0x12
mov [PUTPIXEL],dword VGA_putpixel
mov [GETPIXEL],dword Vesa20_getpixel32
no_mode_0x12:
; -------- Fast System Call init ----------
; Intel SYSENTER/SYSEXIT (AMD CPU support it too)
bt [cpu_caps], CAPS_SEP
jnc .SEnP ; SysEnter not Present
xor edx, edx
mov ecx, MSR_SYSENTER_CS
mov eax, os_code
wrmsr
mov ecx, MSR_SYSENTER_ESP
; mov eax, sysenter_stack ; Check it
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 3116 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 150 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:
; -----------------------------------------
; LOAD IDT
call build_interrupt_table
lidt [idtreg]
call init_kernel_heap
stdcall kernel_alloc, RING0_STACK_SIZE+512
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], 0x800000
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
call init_events
mov eax, srv.fd-SRV_FD_OFFSET
mov [srv.fd], eax
mov [srv.bk], eax
mov edi, irq_tab
xor eax, eax
mov ecx, 16
rep stosd
;Set base of graphic segment to linear address of LFB
mov eax,[LFBAddress] ; set for gs
mov [graph_data_l+2],ax
shr eax,16
mov [graph_data_l+4],al
mov [graph_data_l+7],ah
mov [CURRENT_TASK],dword 1
mov [TASK_COUNT],dword 1
mov [TASK_BASE],dword TASK_DATA
mov [current_slot], SLOT_BASE+256
; set background
xor eax,eax
inc eax
mov [BgrDrawMode],eax
mov [BgrDataWidth],eax
mov [BgrDataHeight],eax
mov [mem_BACKGROUND],4095
stdcall kernel_alloc, [mem_BACKGROUND]
mov [img_background], eax
;!!!!!!!!!!!!!!!!!!!!!!!!!!
include 'detect/disks.inc'
;!!!!!!!!!!!!!!!!!!!!!!!!!!
call Parser_params
; READ RAMDISK IMAGE FROM HD
;!!!!!!!!!!!!!!!!!!!!!!!
include 'boot/rdload.inc'
;!!!!!!!!!!!!!!!!!!!!!!!
; mov [dma_hdd],1
; CALCULATE FAT CHAIN FOR RAMDISK
call calculatefatchain
; LOAD VMODE DRIVER
;!!!!!!!!!!!!!!!!!!!!!!!
include 'vmodeld.inc'
;!!!!!!!!!!!!!!!!!!!!!!!
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
; 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:
; LOAD FONTS I and II
; pushad
; push eax
; mov eax,char
; call file_system_lfn
; mov eax,char2
; call file_system_lfn
; pop eax
; popad
stdcall read_file, char, FONT_I, 0, 2560
stdcall read_file, char2, FONT_II, 0, 2560
mov esi,boot_fonts
call boot_log
; PRINT AMOUNT OF MEMORY
mov esi, boot_memdetect
call boot_log
movzx ecx, word [boot_y]
or ecx, (10+29*6) shl 16 ; "Determining amount of memory"
sub ecx, 10
mov edx, 0xFFFFFF
mov ebx, [MEM_AMOUNT]
shr ebx, 20
mov edi, 1
mov eax, 0x00040000
call display_number_force
; REDIRECT ALL IRQ'S TO INT'S 0x20-0x2f
mov esi,boot_irqs
call boot_log
call rerouteirqs
mov esi,boot_tss
call boot_log
; BUILD SCHEDULER
call build_scheduler ; sys32.inc
mov esi,boot_devices
call boot_log
mov [pci_access_enabled],1
call detect_devices
stdcall load_driver, szPS2MDriver
; TIMER SET TO 1/100 S
mov esi,boot_timer
call boot_log
mov al,0x34 ; set to 100Hz
out 0x43,al
mov al,0x9b ; lsb 1193180 / 1193
out 0x40,al
mov al,0x2e ; msb
out 0x40,al
; SET MOUSE
mov esi,boot_setmouse
call boot_log
call setmouse
; SET PRELIMINARY WINDOW STACK AND POSITIONS
mov esi,boot_windefs
call boot_log
call setwindowdefaults
; SET BACKGROUND DEFAULTS
mov esi,boot_bgr
call boot_log
call init_background
call calculatebackground
; RESERVE SYSTEM IRQ'S JA PORT'S
mov esi,boot_resirqports
call boot_log
call reserve_irqs_ports
; SET PORTS FOR IRQ HANDLERS
mov esi,boot_setrports
call boot_log
call setirqreadports
; SET UP OS TASK
mov esi,boot_setostask
call boot_log
xor eax, eax
mov dword [SLOT_BASE+APPDATA.fpu_state], fpu_data
mov dword [SLOT_BASE+APPDATA.fpu_handler], eax
mov dword [SLOT_BASE+APPDATA.sse_handler], eax
; name for OS/IDLE process
mov dword [SLOT_BASE+256+APPDATA.app_name], dword 'OS/I'
mov dword [SLOT_BASE+256+APPDATA.app_name+4], dword 'DLE '
mov edi, [os_stack_seg]
mov dword [SLOT_BASE+256+APPDATA.pl0_stack], edi
add edi, 0x2000-512
mov dword [SLOT_BASE+256+APPDATA.fpu_state], edi
mov dword [SLOT_BASE+256+APPDATA.io_map],\
(tss._io_map_0-OS_BASE+PG_MAP)
mov dword [SLOT_BASE+256+APPDATA.io_map+4],\
(tss._io_map_1-OS_BASE+PG_MAP)
mov esi, fpu_data
mov ecx, 512/4
cld
rep movsd
mov dword [SLOT_BASE+256+APPDATA.fpu_handler], eax
mov dword [SLOT_BASE+256+APPDATA.sse_handler], eax
mov ebx, SLOT_BASE+256+APP_OBJ_OFFSET
mov dword [SLOT_BASE+256+APPDATA.fd_obj], ebx
mov dword [SLOT_BASE+256+APPDATA.bk_obj], ebx
mov dword [SLOT_BASE+256+APPDATA.cur_dir], sysdir_path
; task list
mov [CURRENT_TASK],dword 1
mov [TASK_COUNT],dword 1
mov [current_slot], SLOT_BASE+256
mov [TASK_BASE],dword TASK_DATA
mov [TASK_DATA+TASKDATA.wnd_number], 1 ; on screen number
mov [TASK_DATA+TASKDATA.pid], 1 ; process id number
mov [TASK_DATA+TASKDATA.mem_start], 0 ; process base address
call init_cursors
mov eax, [def_cursor]
mov [SLOT_BASE+APPDATA.cursor],eax
mov [SLOT_BASE+APPDATA.cursor+256],eax
; READ TSC / SECOND
mov esi,boot_tsc
call boot_log
call _rdtsc
mov ecx,eax
mov esi,250 ; wait 1/4 a second
call delay_ms
call _rdtsc
sub eax,ecx
shl eax,2
mov [CPU_FREQ],eax ; save tsc / sec
mov ebx, 1000000
div ebx
mov [stall_mcs], eax
; SET VARIABLES
call set_variables
; STACK AND FDC
call stack_init
call fdc_init
; PALETTE FOR 320x200 and 640x480 16 col
cmp [SCR_MODE],word 0x12
jne no_pal_vga
mov esi,boot_pal_vga
call boot_log
call paletteVGA
no_pal_vga:
cmp [SCR_MODE],word 0x13
jne no_pal_ega
mov esi,boot_pal_ega
call boot_log
call palette320x200
no_pal_ega:
; LOAD DEFAULT SKIN
call load_default_skin
;protect io permission map
mov esi, [default_io_map]
stdcall map_page,esi,(tss._io_map_0-OS_BASE), PG_MAP
add esi, 0x1000
stdcall map_page,esi,(tss._io_map_1-OS_BASE), PG_MAP
stdcall map_page,tss._io_map_0,\
(tss._io_map_0-OS_BASE), PG_MAP
stdcall map_page,tss._io_map_1,\
(tss._io_map_1-OS_BASE), PG_MAP
mov ax,[OS_BASE+0x10000+bx_from_load]
cmp ax,'r1' ; if not rused ram disk - load network configuration from files {SPraid.simba}
je no_st_network
call set_network_conf
no_st_network:
; LOAD FIRST APPLICATION
cli
cmp byte [BOOT_VAR+0x9030],1
jne no_load_vrr_m
mov ebp, vrr_m
call fs_execute_from_sysdir
cmp eax,2 ; if vrr_m app found (PID=2)
je first_app_found
no_load_vrr_m:
mov ebp, firstapp
call fs_execute_from_sysdir
cmp eax,2 ; continue if a process has been loaded
je first_app_found
mov eax, 0xDEADBEEF ; otherwise halt
hlt
first_app_found:
cli
;mov [TASK_COUNT],dword 2
mov [CURRENT_TASK],dword 1 ; set OS task fisrt
; SET KEYBOARD PARAMETERS
mov al, 0xf6 ; reset keyboard, scan enabled
call kb_write
; wait until 8042 is ready
xor ecx,ecx
@@:
in al,64h
and al,00000010b
loopnz @b
; mov al, 0xED ; svetodiody - only for testing!
; call kb_write
; call kb_read
; mov al, 111b
; call kb_write
; call kb_read
mov al, 0xF3 ; set repeat rate & delay
call kb_write
; call kb_read
mov al, 0 ; 30 250 ;00100010b ; 24 500 ;00100100b ; 20 500
call kb_write
; call kb_read
;// mike.dld [
call set_lights
;// mike.dld ]
; START MULTITASKING
mov esi,boot_tasking
call boot_log
; mov [ENABLE_TASKSWITCH],byte 1 ; multitasking enabled
; UNMASK ALL IRQ'S
mov esi,boot_allirqs
call boot_log
cli ;guarantee forbidance of interrupts.
mov al,0 ; unmask all irq's
out 0xA1,al
out 0x21,al
mov ecx,32
ready_for_irqs:
mov al,0x20 ; ready for irqs
out 0x20,al
out 0xa0,al
loop ready_for_irqs ; flush the queue
stdcall attach_int_handler, dword 1, irq1
; mov [dma_hdd],1
cmp [IDEContrRegsBaseAddr], 0
setnz [dma_hdd]
mov [timer_ticks_enable],1 ; for cd driver
; stdcall init_uart_service, DRV_ENTRY
sti
call change_task
jmp osloop
jmp $ ; wait here for timer to take control
; Fly :)
include 'unpacker.inc'
include 'fdo.inc'
align 4
boot_log:
pushad
mov eax,10*65536
mov ax,word [boot_y]
add [boot_y],dword 10
mov ebx,0x80ffffff ; ASCIIZ string with white color
mov ecx,esi
mov edi,1
call dtext
mov [novesachecksum],1000
call checkVga_N13
cmp [preboot_blogesc+OS_BASE+0x10000],byte 1
je .bll2
cmp esi,boot_tasking
jne .bll2
; begin ealex 04.08.05
; in al,0x61
; and al,01111111b
; out 0x61,al
; end ealex 04.08.05
.bll1: in al,0x60 ; wait for ESC key press
cmp al,129
jne .bll1
.bll2: popad
ret
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; ;
; MAIN OS LOOP START ;
; ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
align 32
osloop:
call [draw_pointer]
call checkbuttons
call checkwindows
; call check_window_move_request
call checkmisc
call checkVga_N13
call stack_handler
call checkidle
call check_fdd_motor_status
call check_ATAPI_device_event
jmp osloop
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; ;
; MAIN OS LOOP END ;
; ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
checkidle:
pushad
cmp [check_idle_semaphore],0
jne no_idle_state
call change_task
mov eax,[idlemem]
mov ebx,[timer_ticks] ;[0xfdf0]
cmp eax,ebx
jnz idle_exit
call _rdtsc
mov ecx,eax
idle_loop:
hlt
cmp [check_idle_semaphore],0
jne idle_loop_exit
mov eax,[timer_ticks] ;[0xfdf0]
cmp ebx,eax
jz idle_loop
idle_loop_exit:
mov [idlemem],eax
call _rdtsc
sub eax,ecx
mov ebx,[idleuse]
add ebx,eax
mov [idleuse],ebx
popad
ret
idle_exit:
mov ebx,[timer_ticks] ;[0xfdf0]
mov [idlemem],ebx
call change_task
popad
ret
no_idle_state:
dec [check_idle_semaphore]
mov ebx,[timer_ticks] ;[0xfdf0]
mov [idlemem],ebx
call change_task
popad
ret
uglobal
idlemem dd 0x0
idleuse dd 0x0
idleusesec dd 0x0
check_idle_semaphore dd 0x0
endg
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; ;
; INCLUDED SYSTEM FILES ;
; ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
include "kernel32.inc"
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; ;
; KERNEL FUNCTIONS ;
; ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
reserve_irqs_ports:
pushad
mov [irq_owner+4*0], 1 ; timer
mov [irq_owner+4*1], 1 ; keyboard
mov [irq_owner+4*5], 1 ; sound blaster
mov [irq_owner+4*6], 1 ; floppy diskette
mov [irq_owner+4*13], 1 ; math co-pros
mov [irq_owner+4*14], 1 ; ide I
mov [irq_owner+4*15], 1 ; ide II
; movzx eax,byte [0xf604] ; mouse irq
; dec eax
; add eax,mouseirqtable
; movzx eax,byte [eax]
; shl eax,2
; mov [irq_owner+eax],byte 1
; RESERVE PORTS
mov edi,1 ; 0x00-0x2d
mov [RESERVED_PORTS],edi
shl edi,4
mov [RESERVED_PORTS+edi+0],dword 1
mov [RESERVED_PORTS+edi+4],dword 0x0
mov [RESERVED_PORTS+edi+8],dword 0x2d
inc dword [RESERVED_PORTS] ; 0x30-0x4d
mov edi,[RESERVED_PORTS]
shl edi,4
mov [RESERVED_PORTS+edi+0],dword 1
mov [RESERVED_PORTS+edi+4],dword 0x30
mov [RESERVED_PORTS+edi+8],dword 0x4d
inc dword [RESERVED_PORTS] ; 0x50-0xdf
mov edi,[RESERVED_PORTS]
shl edi,4
mov [RESERVED_PORTS+edi+0],dword 1
mov [RESERVED_PORTS+edi+4],dword 0x50
mov [RESERVED_PORTS+edi+8],dword 0xdf
inc dword [RESERVED_PORTS] ; 0xe5-0xff
mov edi,[RESERVED_PORTS]
shl edi,4
mov [RESERVED_PORTS+edi+0],dword 1
mov [RESERVED_PORTS+edi+4],dword 0xe5
mov [RESERVED_PORTS+edi+8],dword 0xff
; cmp [0xf604],byte 2 ; com1 mouse -> 0x3f0-0x3ff
; jne ripl1
; inc dword [0x2d0000]
; mov edi,[0x2d0000]
; shl edi,4
; mov [0x2d0000+edi+0],dword 1
; mov [0x2d0000+edi+4],dword 0x3f0
; mov [0x2d0000+edi+8],dword 0x3ff
; ripl1:
; cmp [0xf604],byte 3 ; com2 mouse -> 0x2f0-0x2ff
; jne ripl2
; inc dword [0x2d0000]
; mov edi,[0x2d0000]
; shl edi,4
; mov [0x2d0000+edi+0],dword 1
; mov [0x2d0000+edi+4],dword 0x2f0
; mov [0x2d0000+edi+8],dword 0x2ff
; ripl2:
popad
ret
iglobal
mouseirqtable db 12 ; ps2
db 4 ; com1
db 3 ; com2
endg
setirqreadports:
mov [irq12read+0],dword 0x60 + 0x01000000 ; read port 0x60 , byte
mov [irq12read+4],dword 0 ; end of port list
mov [irq04read+0],dword 0x3f8 + 0x01000000 ; read port 0x3f8 , byte
mov [irq04read+4],dword 0 ; end of port list
mov [irq03read+0],dword 0x2f8 + 0x01000000 ; read port 0x2f8 , byte
mov [irq03read+4],dword 0 ; end of port list
ret
iglobal
process_number dd 0x1
endg
set_variables:
mov ecx,0x100 ; flush port 0x60
.fl60: in al,0x60
loop .fl60
mov [MOUSE_BUFF_COUNT],byte 0 ; mouse buffer
mov [KEY_COUNT],byte 0 ; keyboard buffer
mov [BTN_COUNT],byte 0 ; button buffer
; mov [MOUSE_X],dword 100*65536+100 ; mouse x/y
push eax
mov ax,[BOOT_VAR+0x900c]
shr ax,1
shl eax,16
mov ax,[BOOT_VAR+0x900A]
shr ax,1
mov [MOUSE_X],eax
pop eax
mov byte [SB16_Status],0 ; Minazzi Paolo
mov [BTN_ADDR],dword BUTTON_INFO ; address of button list
;!! IP 04.02.2005:
mov [next_usage_update], 100
mov byte [DONT_SWITCH], 0 ; change task if possible
ret
;* mouse centered - start code- Mario79
mouse_centered:
push eax
mov eax,[ScreenWidth]
shr eax,1
mov [MOUSE_X],ax
mov eax,[ScreenHeight]
shr eax,1
mov [MOUSE_Y],ax
pop eax
ret
;* mouse centered - end code- Mario79
align 4
sys_outport:
mov edi,ebx ; separate flag for read / write
and ebx,65535
mov ecx,[RESERVED_PORTS]
test ecx,ecx
jne sopl8
mov [esp+36],dword 1
ret
sopl8:
mov edx,[TASK_BASE]
mov edx,[edx+0x4]
and ebx,65535
cld
sopl1:
mov esi,ecx
shl esi,4
add esi,RESERVED_PORTS
cmp edx,[esi+0]
jne sopl2
cmp ebx,[esi+4]
jb sopl2
cmp ebx,[esi+8]
jg sopl2
jmp sopl3
sopl2:
dec ecx
jnz sopl1
mov [esp+36],dword 1
ret
sopl3:
test edi,0x80000000 ; read ?
jnz sopl4
mov dx,bx ; write
out dx,al
mov [esp+36],dword 0
ret
sopl4:
mov dx,bx ; read
in al,dx
and eax,0xff
mov [esp+36],dword 0
mov [esp+24],eax
ret
align 4
sys_sb16:
cmp word [sb16],word 0
jnz sb16l1
mov [esp+36],dword 1
ret
sb16l1:
mov [esp+36],dword 0
cmp eax,1 ; set volume - main
jnz sb16l2
mov dx,word [sb16]
add dx,4
mov al,0x22
out dx,al
mov esi,1
call delay_ms
mov eax,ebx
inc edx
out dx,al
ret
sb16l2:
cmp eax,2 ; set volume - cd
jnz sb16l3
mov dx,word [sb16]
add dx,4
mov al,0x28
out dx,al
mov esi,1
call delay_ms
mov eax,ebx
add edx,1
out dx,al
ret
sb16l3:
mov [esp+36],dword 2
ret
align 4
sys_sb16II:
cmp word [sb16],word 0
jnz IIsb16l1
mov [esp+36],dword 1
ret
IIsb16l1:
cmp eax,1 ; set volume - main
jnz IIsb16l2
; L
mov dx,word [sb16]
add dx,4
mov al,0x30
out dx,al
mov eax,ebx
inc edx
out dx,al
; R
mov dx,word [sb16]
add dx,4
mov al,0x31
out dx,al
mov eax,ebx
inc edx
out dx,al
mov [esp+36],dword 0
ret
IIsb16l2:
cmp eax,2 ; set volume - cd
jnz IIsb16l3
; L
mov dx,word [sb16]
add dx,4
mov al,0x36
out dx,al
mov eax,ebx
inc edx
out dx,al
; R
mov dx,word [sb16]
add dx,4
mov al,0x37
out dx,al
mov eax,ebx
inc edx
out dx,al
mov [esp+36],dword 0
ret
IIsb16l3:
mov [esp+36],dword 2
ret
display_number:
; eax = print type, al=0 -> ebx is number
; al=1 -> ebx is pointer
; ah=0 -> display decimal
; ah=1 -> display hexadecimal
; ah=2 -> display binary
; eax bits 16-21 = number of digits to display (0-32)
; eax bits 22-31 = reserved
;
; ebx = number or pointer
; ecx = x shl 16 + y
; edx = color
xor edi, edi
display_number_force:
push eax
and eax,0x7fffffff
cmp eax,0xffff ; length > 0 ?
pop eax
jge cont_displ
ret
cont_displ:
push eax
and eax,0x7fffffff
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 ebx,[ebx+std_application_base_address]
displnl1:
sub esp,64
cmp ah,0 ; DECIMAL
jne no_display_desnum
shr eax,16
and eax,0x803f
; 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
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,0x803f
; 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
div ebx
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,0x803f
; 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
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
jne @r
.continue:
and eax,0x3f
ret
draw_num_text:
; dtext
;
; eax x & y
; ebx color
; ecx start of text
; edx length
; edi 1 force
; mov edi,[CURRENT_TASK]
; shl edi,8
; add ax,word[edi+SLOT_BASE+APPDATA.wnd_clientbox.top]
; rol eax,16
; add ax,word[edi+SLOT_BASE+APPDATA.wnd_clientbox.left]
; rol eax,16
mov edx,eax
mov ecx,64+4
sub ecx,eax
add ecx,esp
mov eax,[esp+64+32-8+4]
push edx ; add window start x & y
mov edx,[TASK_BASE]
mov edi,[CURRENT_TASK]
shl edi,8
mov ebx,[edx-twdw+WDATA.box.left]
add ebx,[edi+SLOT_BASE+APPDATA.wnd_clientbox.left]
shl ebx,16
add ebx,[edx-twdw+WDATA.box.top]
add ebx,[edi+SLOT_BASE+APPDATA.wnd_clientbox.top]
add eax,ebx
pop edx
mov ebx,[esp+64+32-12+4]
and ebx, not 0x80000000 ; force counted string
mov esi, [esp+64+4+4]
mov edi, [esp+64+4]
jmp dtext
read_string:
; eax read_area
; ebx color of letter
; ecx color of background
; edx number of letters to read
; esi [x start]*65536 + [y_start]
ret
align 4
sys_setup:
; 1=roland mpu midi base , base io address
; 2=keyboard 1, base kaybap 2, shift keymap, 9 country 1eng 2fi 3ger 4rus
; 3=cd base 1, pri.master 2, pri slave 3 sec master, 4 sec slave
; 4=sb16 base , base io address
; 5=system language, 1eng 2fi 3ger 4rus
; 7=hd base 1, pri.master 2, pri slave 3 sec master, 4 sec slave
; 8=fat32 partition in hd
; 9
; 10 = sound dma channel
; 11 = enable lba read
; 12 = enable pci access
mov [esp+36],dword 0
cmp eax,1 ; MIDI
jnz nsyse1
cmp ebx,0x100
jb nsyse1
mov edx,65535
cmp edx,ebx
jb nsyse1
mov [midi_base],bx
mov word [mididp],bx
inc bx
mov word [midisp],bx
ret
iglobal
midi_base dw 0
endg
nsyse1:
cmp eax,2 ; KEYBOARD
jnz nsyse2
cmp ebx,1
jnz kbnobase
mov edi,[TASK_BASE]
add ecx,[edi+TASKDATA.mem_start]
mov eax,ecx
mov ebx,keymap
mov ecx,128
call memmove
ret
kbnobase:
cmp ebx,2
jnz kbnoshift
mov edi,[TASK_BASE]
add ecx,[edi+TASKDATA.mem_start]
mov eax,ecx
mov ebx,keymap_shift
mov ecx,128
call memmove
ret
kbnoshift:
cmp ebx,3
jne kbnoalt
mov edi,[TASK_BASE]
add ecx,[edi+TASKDATA.mem_start]
mov eax,ecx
mov ebx,keymap_alt
mov ecx,128
call memmove
ret
kbnoalt:
cmp ebx,9
jnz kbnocountry
mov word [keyboard],cx
ret
kbnocountry:
mov [esp+36],dword 1
ret
nsyse2:
cmp eax,3 ; CD
jnz nsyse3
test ebx,ebx
jz nosesl
cmp ebx, 4
ja nosesl
mov [cd_base],bl
cmp ebx,1
jnz noprma
mov [cdbase],0x1f0
mov [cdid],0xa0
noprma:
cmp ebx,2
jnz noprsl
mov [cdbase],0x1f0
mov [cdid],0xb0
noprsl:
cmp ebx,3
jnz nosema
mov [cdbase],0x170
mov [cdid],0xa0
nosema:
cmp ebx,4
jnz nosesl
mov [cdbase],0x170
mov [cdid],0xb0
nosesl:
ret
cd_base db 0
nsyse3:
cmp eax,4 ; SB
jnz nsyse4
cmp ebx,0x100
jb nsyse4
mov edx,65535
cmp edx,ebx
jb nsyse4
mov word [sb16],bx
ret
nsyse4:
cmp eax,5 ; SYSTEM LANGUAGE
jnz nsyse5
mov [syslang],ebx
ret
nsyse5:
cmp eax,7 ; HD BASE
jne nsyse7
test ebx,ebx
jz nosethd
cmp ebx,4
ja nosethd
mov [hd_base],bl
cmp ebx,1
jnz noprmahd
mov [hdbase],0x1f0
mov [hdid],0x0
mov [hdpos],1
; call set_FAT32_variables
noprmahd:
cmp ebx,2
jnz noprslhd
mov [hdbase],0x1f0
mov [hdid],0x10
mov [hdpos],2
; call set_FAT32_variables
noprslhd:
cmp ebx,3
jnz nosemahd
mov [hdbase],0x170
mov [hdid],0x0
mov [hdpos],3
; call set_FAT32_variables
nosemahd:
cmp ebx,4
jnz noseslhd
mov [hdbase],0x170
mov [hdid],0x10
mov [hdpos],4
; call set_FAT32_variables
noseslhd:
call reserve_hd1
call reserve_hd_channel
call free_hd_channel
mov [hd1_status],0 ; free
nosethd:
ret
iglobal
hd_base db 0
endg
nsyse7:
cmp eax,8 ; HD PARTITION
jne nsyse8
mov [fat32part],ebx
; call set_FAT32_variables
call reserve_hd1
call reserve_hd_channel
call free_hd_channel
pusha
call choice_necessity_partition_1
popa
mov [hd1_status],0 ; free
ret
nsyse8:
cmp eax,10 ; SOUND DMA CHANNEL
jne no_set_sound_dma
cmp ebx,3
ja sys_setup_err
mov [sound_dma],ebx
ret
no_set_sound_dma:
cmp eax,11 ; ENABLE LBA READ
jne no_set_lba_read
and ebx,1
mov [lba_read_enabled],ebx
ret
no_set_lba_read:
cmp eax,12 ; ENABLE PCI ACCESS
jne no_set_pci_access
and ebx,1
mov [pci_access_enabled],ebx
ret
no_set_pci_access:
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
include 'vmodeint.inc'
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
sys_setup_err:
mov [esp+36],dword -1
ret
align 4
sys_getsetup:
; 1=roland mpu midi base , base io address
; 2=keyboard 1, base kaybap 2, shift keymap, 9 country 1eng 2fi 3ger 4rus
; 3=cd base 1, pri.master 2, pri slave 3 sec master, 4 sec slave
; 4=sb16 base , base io address
; 5=system language, 1eng 2fi 3ger 4rus
; 7=hd base 1, pri.master 2, pri slave 3 sec master, 4 sec slave
; 8=fat32 partition in hd
; 9=get hs timer tic
cmp eax,1
jne ngsyse1
movzx eax,[midi_base]
mov [esp+36],eax
ret
ngsyse1:
cmp eax,2
jne ngsyse2
cmp ebx,1
jnz kbnobaseret
mov edi,[TASK_BASE]
add ecx,[edi+TASKDATA.mem_start]
mov ebx,ecx
mov eax,keymap
mov ecx,128
call memmove
ret
kbnobaseret:
cmp ebx,2
jnz kbnoshiftret
mov edi,[TASK_BASE]
add ecx,[edi+TASKDATA.mem_start]
mov ebx,ecx
mov eax,keymap_shift
mov ecx,128
call memmove
ret
kbnoshiftret:
cmp ebx,3
jne kbnoaltret
mov edi,[TASK_BASE]
add ecx,[edi+TASKDATA.mem_start]
mov ebx,ecx
mov eax,keymap_alt
mov ecx,128
call memmove
ret
kbnoaltret:
cmp ebx,9
jnz ngsyse2
movzx eax,word [keyboard]
mov [esp+36],eax
ret
ngsyse2:
cmp eax,3
jnz ngsyse3
movzx eax,[cd_base]
mov [esp+36],eax
ret
ngsyse3:
cmp eax,4
jne ngsyse4
mov eax,[sb16]
mov [esp+36],eax
ret
ngsyse4:
cmp eax,5
jnz ngsyse5
mov eax,[syslang]
mov [esp+36],eax
ret
ngsyse5:
cmp eax,7
jnz ngsyse7
movzx eax,[hd_base]
mov [esp+36],eax
ret
ngsyse7:
cmp eax,8
jnz ngsyse8
mov eax,[fat32part]
mov [esp+36],eax
ret
ngsyse8:
cmp eax,9
jne ngsyse9
mov eax,[timer_ticks] ;[0xfdf0]
mov [esp+36],eax
ret
ngsyse9:
cmp eax,10
jnz ngsyse10
mov eax,[sound_dma]
mov [esp+36],eax
ret
ngsyse10:
cmp eax,11
jnz ngsyse11
mov eax,[lba_read_enabled]
mov [esp+36],eax
ret
ngsyse11:
cmp eax,12
jnz ngsyse12
mov eax,[pci_access_enabled]
mov [esp+36],eax
ret
ngsyse12:
mov [esp+36],dword 1
ret
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 eax, 7
ja msset
jmp [mousefn+eax*4]
msscreen:
mov eax,[MOUSE_X]
shl eax,16
mov ax,[MOUSE_Y]
mov [esp+36],eax
ret
mswin:
mov eax,[MOUSE_X]
shl eax,16
mov ax,[MOUSE_Y]
mov esi,[TASK_BASE]
mov bx, word [esi-twdw+WDATA.box.left]
shl ebx,16
mov bx, word [esi-twdw+WDATA.box.top]
sub eax,ebx
mov edi,[CURRENT_TASK]
shl edi,8
sub ax,word[edi+SLOT_BASE+APPDATA.wnd_clientbox.top]
rol eax,16
sub ax,word[edi+SLOT_BASE+APPDATA.wnd_clientbox.left]
rol eax,16
mov [esp+36],eax
ret
msbutton:
movzx eax,byte [BTN_DOWN]
mov [esp+36],eax
ret
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],eax
mov [MOUSE_SCROLL_H],word 0
mov [MOUSE_SCROLL_V],word 0
ret
@@:
mov [esp+36],dword 0
ret
msset:
ret
app_load_cursor:
; add ebx, new_app_base
cmp ebx, OS_BASE
jae msset
stdcall load_cursor, ebx, ecx
mov [esp+36], eax
ret
app_set_cursor:
stdcall set_cursor, ebx
mov [esp+36], eax
ret
app_delete_cursor:
stdcall delete_cursor, ebx
mov [esp+36], eax
ret
is_input:
push edx
mov dx,word [midisp]
in al,dx
and al,0x80
pop edx
ret
is_output:
push edx
mov dx,word [midisp]
in al,dx
and al,0x40
pop edx
ret
get_mpu_in:
push edx
mov dx,word [mididp]
in al,dx
pop edx
ret
put_mpu_out:
push edx
mov dx,word [mididp]
out dx,al
pop edx
ret
setuart:
su1:
call is_output
cmp al,0
jnz su1
mov dx,word [midisp]
mov al,0xff
out dx,al
su2:
mov dx,word [midisp]
mov al,0xff
out dx,al
call is_input
cmp al,0
jnz su2
call get_mpu_in
cmp al,0xfe
jnz su2
su3:
call is_output
cmp al,0
jnz su3
mov dx,word [midisp]
mov al,0x3f
out dx,al
ret
align 4
sys_midi:
cmp [mididp],0
jnz sm0
mov [esp+36],dword 1
ret
sm0:
cmp eax,1
mov [esp+36],dword 0
jnz smn1
call setuart
ret
smn1:
cmp eax,2
jnz smn2
sm10:
call get_mpu_in
call is_output
test al,al
jnz sm10
mov al,bl
call put_mpu_out
ret
smn2:
ret
detect_devices:
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
include 'detect/commouse.inc'
;include 'detect/ps2mouse.inc'
;include 'detect/dev_fd.inc'
;include 'detect/dev_hdcd.inc'
;include 'detect/sear_par.inc'
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
ret
sys_end:
mov eax,[TASK_BASE]
mov [eax+TASKDATA.state], 3 ; terminate this program
waitterm: ; wait here for termination
mov eax,5
call delay_hs
jmp waitterm
iglobal
align 4
sys_system_table:
dd sysfn_shutdown ; 1 = system shutdown
dd sysfn_terminate ; 2 = terminate thread
dd sysfn_activate ; 3 = activate window
dd sysfn_getidletime ; 4 = get idle time
dd sysfn_getcpuclock ; 5 = get cpu clock
dd sysfn_saveramdisk ; 6 = save ramdisk
dd sysfn_getactive ; 7 = get active window
dd sysfn_sound_flag ; 8 = get/set sound_flag
dd sysfn_shutdown_param ; 9 = shutdown with parameter
dd sysfn_minimize ; 10 = minimize window
dd sysfn_getdiskinfo ; 11 = get disk subsystem info
dd sysfn_lastkey ; 12 = get last pressed key
dd sysfn_getversion ; 13 = get kernel version
dd sysfn_waitretrace ; 14 = wait retrace
dd sysfn_centermouse ; 15 = center mouse cursor
dd sysfn_getfreemem ; 16 = get free memory size
dd sysfn_getallmem ; 17 = get total memory size
dd sysfn_terminate2 ; 18 = terminate thread using PID
; instead of slot
dd sysfn_mouse_acceleration; 19 = set/get mouse acceleration
dd sysfn_meminfo ; 20 = get extended memory info
dd sysfn_pid_to_slot ; 21 = get slot number for pid
dd sysfn_min_rest_window ; 22 = minimize and restore any window
sysfn_num = ($ - sys_system_table)/4
endg
sys_system:
dec eax
cmp eax, sysfn_num
jae @f
jmp dword [sys_system_table + eax*4]
@@:
ret
sysfn_shutdown: ; 18.1 = BOOT
mov [BOOT_VAR+0x9030],byte 0
for_shutdown_parameter:
mov eax,[TASK_COUNT]
add eax,2
mov [shutdown_processes],eax
mov [SYS_SHUTDOWN],al
and dword [esp+36], 0
ret
uglobal
shutdown_processes: dd 0x0
endg
sysfn_terminate: ; 18.2 = TERMINATE
cmp ebx,2
jb noprocessterminate
mov edx,[TASK_COUNT]
cmp ebx,edx
ja noprocessterminate
mov eax,[TASK_COUNT]
shl ebx,5
mov edx,[ebx+CURRENT_TASK+TASKDATA.pid]
add ebx,CURRENT_TASK+TASKDATA.state
cmp byte [ebx], 9
jz noprocessterminate
;call MEM_Heap_Lock ;guarantee that process isn't working with heap
mov [ebx],byte 3 ; clear possible i40's
;call MEM_Heap_UnLock
cmp edx,[application_table_status] ; clear app table stat
jne noatsc
mov [application_table_status],0
noatsc:
noprocessterminate:
ret
sysfn_terminate2:
;lock application_table_status mutex
.table_status:
cli
cmp [application_table_status],0
je .stf
sti
call change_task
jmp .table_status
.stf:
call set_application_table_status
mov eax,ebx
call pid_to_slot
test eax,eax
jz .not_found
mov ebx,eax
cli
call sysfn_terminate
mov [application_table_status],0
sti
and dword [esp+36],0
ret
.not_found:
mov [application_table_status],0
or dword [esp+36],-1
ret
sysfn_activate: ; 18.3 = ACTIVATE WINDOW
cmp ebx,2
jb .nowindowactivate
cmp ebx,[TASK_COUNT]
ja .nowindowactivate
mov [window_minimize], 2 ; restore window if minimized
movzx esi, word [WIN_STACK + ebx*2]
cmp esi, [TASK_COUNT]
je .nowindowactivate ; already active
mov edi, ebx
shl edi, 5
add edi, window_data
movzx esi, word [WIN_STACK + ebx * 2]
lea esi, [WIN_POS + esi * 2]
call waredraw
.nowindowactivate:
ret
sysfn_getidletime: ; 18.4 = GET IDLETIME
mov eax,[idleusesec]
mov [esp+36], eax
ret
sysfn_getcpuclock: ; 18.5 = GET TSC/SEC
mov eax,[CPU_FREQ]
mov [esp+36], eax
ret
; SAVE ramdisk to /hd/1/menuet.img
;!!!!!!!!!!!!!!!!!!!!!!!!
include 'blkdev/rdsave.inc'
;!!!!!!!!!!!!!!!!!!!!!!!!
sysfn_getactive: ; 18.7 = get active window
mov eax, [TASK_COUNT]
movzx eax, word [WIN_POS + eax*2]
mov [esp+36],eax
ret
sysfn_sound_flag: ; 18.8 = get/set sound_flag
cmp ebx,1
jne nogetsoundflag
movzx eax,byte [sound_flag] ; get sound_flag
mov [esp+36],eax
ret
nogetsoundflag:
cmp ebx,2
jnz nosoundflag
xor byte [sound_flag], 1
nosoundflag:
ret
sysfn_shutdown_param: ; 18.9 = system shutdown with param
cmp ebx,1
jl exit_for_anyone
cmp ebx,4
jg exit_for_anyone
mov [BOOT_VAR+0x9030],bl
jmp for_shutdown_parameter
sysfn_minimize: ; 18.10 = minimize window
mov [window_minimize],1
exit_for_anyone:
ret
sysfn_getdiskinfo: ; 18.11 = get disk info table
cmp ebx,1
jnz full_table
small_table:
call for_all_tables
mov ecx,10
cld
rep movsb
ret
for_all_tables:
mov edi,[TASK_BASE]
mov edi,[edi+TASKDATA.mem_start]
add edi,ecx
mov esi,DRIVE_DATA
ret
full_table:
cmp ebx,2
jnz exit_for_anyone
call for_all_tables
mov ecx,16384
cld
rep movsd
ret
sysfn_lastkey: ; 18.12 = return 0 (backward compatibility)
and dword [esp+36], 0
ret
sysfn_getversion: ; 18.13 = get kernel ID and version
mov edi,[TASK_BASE]
mov edi,[edi+TASKDATA.mem_start]
add edi,ebx
mov esi,version_inf
mov ecx,version_end-version_inf
cld
rep movsb
ret
sysfn_waitretrace: ; 18.14 = sys wait retrace
;wait retrace functions
sys_wait_retrace:
mov edx,0x3da
WaitRetrace_loop:
in al,dx
test al,1000b
jz WaitRetrace_loop
mov [esp+36],dword 0
ret
sysfn_centermouse: ; 18.15 = mouse centered
call mouse_centered
mov [esp+36],dword 0
ret
sysfn_mouse_acceleration: ; 18.19 = set/get mouse features
cmp ebx,0 ; get mouse speed factor
jnz .set_mouse_acceleration
xor eax,eax
mov ax,[mouse_speed_factor]
mov [esp+36],eax
ret
.set_mouse_acceleration:
cmp ebx,1 ; set mouse speed factor
jnz .get_mouse_delay
mov [mouse_speed_factor],cx
ret
.get_mouse_delay:
cmp ebx,2 ; get mouse delay
jnz .set_mouse_delay
mov eax,[mouse_delay]
mov [esp+36],eax
ret
.set_mouse_delay:
cmp ebx,3 ; set mouse delay
jnz .set_pointer_position
mov [mouse_delay],ecx
ret
.set_pointer_position:
cmp ebx,4 ; set mouse pointer position
jnz .set_mouse_button
mov [MOUSE_Y],cx ;y
ror ecx,16
mov [MOUSE_X],cx ;x
rol ecx,16
ret
.set_mouse_button:
cmp ebx,5 ; set mouse button features
jnz .end
mov [BTN_DOWN],cl
mov [mouse_active],1
.end:
ret
sysfn_getfreemem:
mov eax, [pg_data.pages_free]
shl eax, 2
mov [esp+36],eax
ret
sysfn_getallmem:
mov eax,[MEM_AMOUNT]
shr eax, 10
mov [esp+36],eax
ret
; // Alver, 2007-22-08 // {
sysfn_pid_to_slot:
mov eax, ebx
call pid_to_slot
mov [esp+36], eax
ret
sysfn_min_rest_window:
pushad
mov eax, ecx ; ebx - operating
shr ebx, 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
xor ecx, ecx
mov cx, [WIN_STACK + eax*2] ; ecx - window number
mov eax, ecx
shr ebx, 1
jc .restore
; .minimize:
call minimize_window
jmp .exit
.restore:
call restore_minimized_window
.exit:
popad
xor eax, eax
mov [esp+36], eax
ret
.error:
popad
xor eax, eax
dec eax
mov [esp+36], eax
ret
; } \\ Alver, 2007-22-08 \\
uglobal
;// mike.dld, 2006-29-01 [
screen_workarea RECT
;// mike.dld, 2006-29-01 ]
window_minimize db 0
sound_flag db 0
endg
iglobal
version_inf:
db 0,7,1,0 ; version 0.7.1.0
db UID_KOLIBRI
dd __REV__
version_end:
endg
UID_NONE=0
UID_MENUETOS=1 ;official
UID_KOLIBRI=2 ;russian
sys_cachetodiskette:
; pushad
; cmp eax,1
; jne no_write_all_of_ramdisk
; call fdc_writeramdisk
; popad
; ret
; no_write_all_of_ramdisk:
; cmp eax,2
; jne no_write_part_of_ramdisk
; call fdc_commitflush
; popad
; ret
; no_write_part_of_ramdisk:
; cmp eax,3
; jne no_set_fdc
; call fdc_set
; popad
; ret
; no_set_fdc:
; cmp eax,4
; jne no_get_fdc
; popad
; call fdc_get
; mov [esp+36],ecx
; ret
; no_get_fdc:
; popad
; ret
cmp eax,1
jne no_floppy_a_save
mov [flp_number],1
jmp save_image_on_floppy
no_floppy_a_save:
cmp eax,2
jne no_floppy_b_save
mov [flp_number],2
save_image_on_floppy:
call save_image
mov [esp+36],dword 0
cmp [FDC_Status],0
je yes_floppy_save
no_floppy_b_save:
mov [esp+36],dword 1
yes_floppy_save:
ret
uglobal
; bgrchanged dd 0x0
bgrlock db 0
bgrlockpid dd 0
endg
sys_background:
cmp eax,1 ; BACKGROUND SIZE
jnz nosb1
cmp ebx,0
je sbgrr
cmp ecx,0
je sbgrr
@@:
mov al, 1
xchg [bgrlock], al
test al, al
jz @f
call change_task
jmp @b
@@:
mov [BgrDataWidth],ebx
mov [BgrDataHeight],ecx
; mov [bgrchanged],1
pushad
; return memory for old background
stdcall kernel_free, [img_background]
; calculate RAW size
xor eax,eax
inc eax
cmp [BgrDataWidth],eax
jae @f
mov [BgrDataWidth],eax
@@:
cmp [BgrDataHeight],eax
jae @f
mov [BgrDataHeight],eax
@@:
mov eax,[BgrDataWidth]
imul eax,[BgrDataHeight]
lea eax,[eax*3]
mov [mem_BACKGROUND],eax
; get memory for new background
stdcall kernel_alloc, eax
test eax, eax
jz .exit_mem
mov [img_background], eax
.exit_mem:
popad
mov [bgrlock], 0
sbgrr:
ret
nosb1:
cmp eax,2 ; SET PIXEL
jnz nosb2
mov edx,[mem_BACKGROUND]
cmp edx,ebx
jbe nosb2
mov edx,[ebx]
and edx,0xFF000000 ;255*256*256*256
and ecx,0x00FFFFFF ;255*256*256+255*256+255
add edx,ecx
;mov [ebx+IMG_BACKGROUND],edx
push eax
mov eax,[img_background]
mov [ebx+eax],edx
pop eax
; mov [bgrchanged],1
ret
nosb2:
cmp eax,3 ; DRAW BACKGROUND
jnz nosb3
draw_background_temp:
; cmp [bgrchanged],1 ;0
; je nosb31
;draw_background_temp:
; mov [bgrchanged],1 ;0
mov [REDRAW_BACKGROUND],byte 1
mov [background_defined], 1
nosb31:
ret
nosb3:
cmp eax,4 ; TILED / STRETCHED
jnz nosb4
cmp ebx,[BgrDrawMode]
je nosb41
mov [BgrDrawMode],ebx
; mov [bgrchanged],1
nosb41:
ret
nosb4:
cmp eax,5 ; BLOCK MOVE TO BGR
jnz nosb5
; bughere
mov eax, ebx
mov ebx, ecx
add ebx, [img_background] ;IMG_BACKGROUND
mov ecx, edx
call memmove
.fin:
ret
nosb5:
cmp eax, 6
jnz nosb6
@@:
mov al, 1
xchg [bgrlock], al
test al, al
jz @f
call change_task
jmp @b
@@:
mov eax, [CURRENT_TASK]
mov [bgrlockpid], eax
stdcall user_alloc, [mem_BACKGROUND]
mov [esp+36], 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
.z:
mov eax, [page_tabs+ebx*4]
test al, 1
jz @f
call free_page
@@:
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
.nomem:
and [bgrlockpid], 0
mov [bgrlock], 0
nosb6:
cmp eax, 7
jnz nosb7
cmp [bgrlock], 0
jz .err
mov eax, [CURRENT_TASK]
cmp [bgrlockpid], eax
jnz .err
mov eax, ebx
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
@@:
and dword [page_tabs+eax*4], 0
mov edx, eax
shl edx, 12
invlpg [edx]
inc eax
loop @b
pop eax
and dword [page_tabs+(eax-1)*4], not DONT_FREE_BLOCK
stdcall user_free, ebx
mov [esp+36], eax
and [bgrlockpid], 0
mov [bgrlock], 0
ret
.err:
and dword [esp+36], 0
ret
nosb7:
ret
align 4
sys_getbackground:
cmp eax,1 ; SIZE
jnz nogb1
mov eax,[BgrDataWidth]
shl eax,16
mov ax,[BgrDataHeight]
mov [esp+36],eax
ret
nogb1:
cmp eax,2 ; PIXEL
jnz nogb2
; mov edx,0x160000-16
; cmp edx,ebx
; jbe nogb2
; mov eax, [ebx+IMG_BACKGROUND]
mov eax,[img_background]
mov eax,[ebx+eax]
and eax, 0xFFFFFF
mov [esp+36],eax
ret
nogb2:
cmp eax,4 ; TILED / STRETCHED
jnz nogb4
mov eax,[BgrDrawMode]
nogb4:
mov [esp+36],eax
ret
align 4
sys_getkey:
mov [esp+36],dword 1
; test main buffer
mov ebx, [CURRENT_TASK] ; TOP OF WINDOW STACK
movzx ecx,word [WIN_STACK + ebx * 2]
mov edx,[TASK_COUNT]
cmp ecx,edx
jne .finish
cmp [KEY_COUNT],byte 0
je .finish
movzx eax,byte [KEY_BUFF]
shl eax,8
push eax
dec byte [KEY_COUNT]
and byte [KEY_COUNT],127
movzx ecx,byte [KEY_COUNT]
add ecx,2
; mov esi,0xf402
; mov edi,0xf401
; cld
; rep movsb
mov eax, KEY_BUFF+1
mov ebx, KEY_BUFF
call memmove
pop eax
.ret_eax:
mov [esp+36],eax
ret
.finish:
; test hotkeys buffer
mov ecx, hotkey_buffer
@@:
cmp [ecx], ebx
jz .found
add ecx, 8
cmp ecx, hotkey_buffer+120*8
jb @b
ret
.found:
mov ax, [ecx+6]
shl eax, 16
mov ah, [ecx+4]
mov al, 2
and dword [ecx+4], 0
and dword [ecx], 0
jmp .ret_eax
align 4
sys_getbutton:
mov ebx, [CURRENT_TASK] ; TOP OF WINDOW STACK
mov [esp+36],dword 1
movzx ecx, word [WIN_STACK + ebx * 2]
mov edx, [TASK_COUNT] ; less than 256 processes
cmp ecx,edx
jne .exit
movzx eax,byte [BTN_COUNT]
test eax,eax
jz .exit
mov eax,[BTN_BUFF]
shl eax,8
mov [BTN_COUNT],byte 0
mov [esp+36],eax
.exit:
ret
align 4
sys_cpuusage:
; RETURN:
;
; +00 dword process cpu usage
; +04 word position in windowing stack
; +06 word windowing stack value at current position (cpu nro)
; +10 12 bytes name
; +22 dword start in mem
; +26 dword used mem
; +30 dword PID , process idenfification number
;
mov edi,[TASK_BASE] ; eax = return area
add eax,[edi + TASKDATA.mem_start]
cmp ebx,-1 ; who am I ?
jne no_who_am_i
mov ebx,[CURRENT_TASK]
no_who_am_i:
push eax ; return area
push ebx ; process number
push ebx
push ebx
push eax
; return memory usage
xor edx,edx
mov eax,0x20
mul ebx
add eax,CURRENT_TASK+TASKDATA.cpu_usage
mov ebx,eax
pop eax
mov ecx,[ebx]
mov [eax],ecx
pop ebx
mov cx, [WIN_STACK + ebx * 2]
mov [eax+4],cx
mov cx, [WIN_POS + ebx * 2]
mov [eax+6],cx
push eax
mov eax,ebx
shl eax,8
add eax,SLOT_BASE+APPDATA.app_name
pop ebx
add ebx,10
mov ecx,11
call memmove
; memory usage
xor eax,eax
mov edx,0x100000*16
pop ecx ; get gdt of tss
cmp ecx,1
je os_mem
shl ecx,8
mov edx,[SLOT_BASE+ecx+APPDATA.mem_size] ;0x8c
mov eax,std_application_base_address
; eax run base -> edx used memory
os_mem:
dec edx
mov [ebx+12],eax
mov [ebx+16],edx
; PID (+30)
mov eax,[esp]
shl eax,5
add eax,CURRENT_TASK+TASKDATA.pid
mov eax,[eax]
mov [ebx+20],eax
; window position and size
mov esi,[esp]
shl esi,5
add esi,window_data + WDATA.box
mov edi,[esp+4]
add edi,34
mov ecx,4
cld
rep movsd
; Process state (+50)
mov eax,[esp]
shl eax,5
add eax,CURRENT_TASK+TASKDATA.state
mov eax,[eax]
mov [ebx+40],ax
; Window client area box
mov esi,[esp]
shl esi,8
add esi,SLOT_BASE+APPDATA.wnd_clientbox
lea edi,[ebx+44]
mov ecx,4
rep movsd
; Window state
mov esi,[esp]
shl esi,5
add esi,window_data + WDATA.box
mov al,[esi+WDATA.fl_wstate]
mov [edi],al
pop ebx
pop eax
; return number of processes
mov eax,[TASK_COUNT]
mov [esp+36],eax
ret
align 4
sys_clock:
cli
; Mikhail Lisovin xx Jan 2005
@@: mov al, 10
out 0x70, al
in al, 0x71
test al, al
jns @f
mov esi, 1
call delay_ms
jmp @b
@@:
; end Lisovin's fix
xor al,al ; seconds
out 0x70,al
in al,0x71
movzx ecx,al
mov al,02 ; minutes
shl ecx,16
out 0x70,al
in al,0x71
movzx edx,al
mov al,04 ; hours
shl edx,8
out 0x70,al
in al,0x71
add ecx,edx
movzx edx,al
add ecx,edx
sti
mov [esp+36],ecx
ret
align 4
sys_date:
cli
@@: mov al, 10
out 0x70, al
in al, 0x71
test al, al
jns @f
mov esi, 1
call delay_ms
jmp @b
@@:
mov ch,0
mov al,7 ; date
out 0x70,al
in al,0x71
mov cl,al
mov al,8 ; month
shl ecx,16
out 0x70,al
in al,0x71
mov ch,al
mov al,9 ; year
out 0x70,al
in al,0x71
mov cl,al
sti
mov [esp+36],ecx
ret
; redraw status
sys_redrawstat:
cmp eax,1
jne no_widgets_away
; buttons away
mov ecx,[CURRENT_TASK]
sys_newba2:
mov edi,[BTN_ADDR]
cmp [edi],dword 0 ; empty button list ?
je end_of_buttons_away
movzx ebx,word [edi]
inc ebx
mov eax,edi
sys_newba:
dec ebx
jz end_of_buttons_away
add eax,0x10
cmp cx,[eax]
jnz sys_newba
push eax ebx ecx
mov ecx,ebx
inc ecx
shl ecx,4
mov ebx,eax
add eax,0x10
call memmove
dec dword [edi]
pop ecx ebx eax
jmp sys_newba2
end_of_buttons_away:
ret
no_widgets_away:
cmp eax,2
jnz srl1
mov edx,[TASK_BASE] ; return whole screen draw area for this app
add edx,draw_data-CURRENT_TASK
mov [edx+RECT.left], 0
mov [edx+RECT.top], 0
mov eax,[ScreenWidth]
mov [edx+RECT.right],eax
mov eax,[ScreenHeight]
mov [edx+RECT.bottom],eax
mov edi,[TASK_BASE]
or [edi-twdw+WDATA.fl_wdrawn], 1 ; no new position & buttons from app
call sys_window_mouse
ret
srl1:
ret
sys_drawwindow:
mov edi,ecx
shr edi,16+8
and edi,15
cmp edi,0 ; type I - original style
jne nosyswI
inc [mouse_pause]
call [disable_mouse]
call sys_set_window
call [disable_mouse]
call drawwindow_I
;dec [mouse_pause]
;call [draw_pointer]
;ret
jmp draw_window_caption.2
nosyswI:
cmp edi,1 ; type II - only reserve area, no draw
jne nosyswII
inc [mouse_pause]
call [disable_mouse]
call sys_set_window
call [disable_mouse]
call sys_window_mouse
dec [mouse_pause]
call [draw_pointer]
ret
nosyswII:
cmp edi,2 ; type III - new style
jne nosyswIII
inc [mouse_pause]
call [disable_mouse]
call sys_set_window
call [disable_mouse]
call drawwindow_III
;dec [mouse_pause]
;call [draw_pointer]
;ret
jmp draw_window_caption.2
nosyswIII:
cmp edi,3 ; type IV - skinned window
je draw_skin_window
cmp edi,4 ; type V - skinned window not sized! {not_sized_skin_window}
jne nosyswV
draw_skin_window:
inc [mouse_pause]
call [disable_mouse]
call sys_set_window
call [disable_mouse]
push 0
mov edi, [TASK_COUNT]
movzx edi, word [WIN_POS + edi*2]
cmp edi, [CURRENT_TASK]
jne @f
inc dword [esp]
@@:
call drawwindow_IV
;dec [mouse_pause]
;call [draw_pointer]
;ret
jmp draw_window_caption.2
nosyswV:
ret
draw_window_caption:
inc [mouse_pause]
call [disable_mouse]
xor eax,eax
mov edx,[TASK_COUNT]
movzx edx,word[WIN_POS+edx*2]
cmp edx,[CURRENT_TASK]
jne @f
inc eax
@@: mov edx,[CURRENT_TASK]
shl edx,5
add edx,window_data
movzx ebx,[edx+WDATA.fl_wstyle]
and bl,0x0F
cmp bl,3
je .draw_caption_style_3 ;{for 3 and 4 style write caption}
cmp bl,4
je .draw_caption_style_3
jmp .not_style_3
.draw_caption_style_3:
push edx
call drawwindow_IV_caption
add esp,4
jmp .2
.not_style_3:
cmp bl,2
jne .not_style_2
call drawwindow_III_caption
jmp .2
.not_style_2:
cmp bl,0
jne .2
call drawwindow_I_caption
;--------------------------------------------------------------
.2: ;jmp @f
mov edi,[CURRENT_TASK]
shl edi,5
test [edi+window_data+WDATA.fl_wstyle],WSTYLE_HASCAPTION
jz @f
mov ecx,[edi*8+SLOT_BASE+APPDATA.wnd_caption]
or ecx,ecx
jz @f
add ecx,[edi+CURRENT_TASK+TASKDATA.mem_start]
movzx eax,[edi+window_data+WDATA.fl_wstyle]
and al,0x0F
cmp al,3
je .skinned
cmp al,4
je .skinned
jmp .not_skinned
.skinned:
mov ebp,[edi+window_data+WDATA.box.left-2]
mov bp,word[edi+window_data+WDATA.box.top]
movzx eax,word[edi+window_data+WDATA.box.width]
sub ax,[_skinmargins.left]
sub ax,[_skinmargins.right]
cwde
cdq
mov ebx,6
idiv ebx
or eax,eax
js @f
mov edx,eax
mov eax,dword[_skinmargins.left-2]
mov ax,word[_skinh]
sub ax,[_skinmargins.bottom]
sub ax,[_skinmargins.top]
sar ax,1
adc ax,0
add ax,[_skinmargins.top]
add ax,-3
add eax,ebp
jmp .dodraw
.not_skinned:
cmp al,1
je @f
mov ebp,[edi+window_data+WDATA.box.left-2]
mov bp,word[edi+window_data+WDATA.box.top]
movzx eax,word[edi+window_data+WDATA.box.width]
sub eax,16
cwde
cdq
mov ebx,6
idiv ebx
or eax,eax
js @f
mov edx,eax
mov eax,0x00080007
add eax,ebp
.dodraw:
mov ebx,[common_colours+16];0x00FFFFFF
or ebx, 0x80000000
xor edi,edi
call dtext
@@:
;--------------------------------------------------------------
dec [mouse_pause]
call [draw_pointer]
ret
iglobal
align 4
window_topleft dd \
1, 21,\ ;type 0
0, 0,\ ;type 1
5, 20,\ ;type 2
5, ?,\ ;type 3 {set by skin}
5, ? ;type 4 {set by skin}
endg
set_window_clientbox:
push eax ecx edi
mov eax,[_skinh]
mov [window_topleft+4*7],eax
mov [window_topleft+4*9],eax
mov ecx,edi
sub edi,window_data
shl edi,3
test [ecx+WDATA.fl_wstyle],WSTYLE_CLIENTRELATIVE
jz @f
movzx eax,[ecx+WDATA.fl_wstyle]
and eax,0x0F
mov eax,[eax*8+window_topleft+0]
mov [edi+SLOT_BASE+APPDATA.wnd_clientbox.left],eax
shl eax,1
neg eax
add eax,[ecx+WDATA.box.width]
mov [edi+SLOT_BASE+APPDATA.wnd_clientbox.width],eax
movzx eax,[ecx+WDATA.fl_wstyle]
and eax,0x0F
push [eax*8+window_topleft+0]
mov eax,[eax*8+window_topleft+4]
mov [edi+SLOT_BASE+APPDATA.wnd_clientbox.top],eax
neg eax
sub eax,[esp]
add eax,[ecx+WDATA.box.height]
mov [edi+SLOT_BASE+APPDATA.wnd_clientbox.height],eax
add esp,4
pop edi ecx eax
ret
@@:
xor eax,eax
mov [edi+SLOT_BASE+APPDATA.wnd_clientbox.left],eax
mov [edi+SLOT_BASE+APPDATA.wnd_clientbox.top],eax
mov eax,[ecx+WDATA.box.width]
mov [edi+SLOT_BASE+APPDATA.wnd_clientbox.width],eax
mov eax,[ecx+WDATA.box.height]
mov [edi+SLOT_BASE+APPDATA.wnd_clientbox.height],eax
pop edi ecx eax
ret
sys_set_window:
mov edi,[CURRENT_TASK]
shl edi,5
add edi,window_data
; colors
mov [edi+WDATA.cl_workarea],ecx
mov [edi+WDATA.cl_titlebar],edx
mov [edi+WDATA.cl_frames],esi
; check flag (?)
test [edi+WDATA.fl_wdrawn],1
jnz newd
push eax
mov eax,[timer_ticks] ;[0xfdf0]
add eax,100
mov [new_window_starting],eax
pop eax
mov word[edi+WDATA.box.width],ax
mov word[edi+WDATA.box.height],bx
sar eax,16
sar ebx,16
mov word[edi+WDATA.box.left],ax
mov word[edi+WDATA.box.top],bx
call check_window_position
call set_window_clientbox
push ecx esi edi ; save for window fullscreen/resize
;mov esi,edi
mov cl,[edi+WDATA.fl_wstyle]
sub edi,window_data
shl edi,3
add edi,SLOT_BASE
and cl,0x0F
mov [edi+APPDATA.wnd_caption],0
cmp cl,3
je set_APPDATA_wnd_caption
cmp cl,4 ; {SPraid.simba}
je set_APPDATA_wnd_caption
jmp @f
set_APPDATA_wnd_caption:
mov [edi+APPDATA.wnd_caption],esi
@@: mov esi,[esp+0]
add edi, APPDATA.saved_box
movsd
movsd
movsd
movsd
pop edi esi ecx
mov esi, [CURRENT_TASK]
movzx esi, word [WIN_STACK+esi*2]
lea esi, [WIN_POS+esi*2]
call waredraw
push eax ebx ecx edx
;;; mov eax, 1
;;; call delay_hs
mov eax, [edi+WDATA.box.left]
mov ebx, [edi+WDATA.box.top]
mov ecx, [edi+WDATA.box.width]
mov edx, [edi+WDATA.box.height]
add ecx, eax
add edx, ebx
call calculatescreen
pop edx ecx ebx eax
mov [KEY_COUNT],byte 0 ; empty keyboard buffer
mov [BTN_COUNT],byte 0 ; empty button buffer
newd:
mov [edi+WDATA.fl_redraw],byte 0 ; no redraw
mov edx,edi
ret
syscall_windowsettings:
.set_window_caption:
dec eax ; subfunction #1 - set window caption
jnz .get_window_caption
; NOTE: only window owner thread can set its caption,
; so there's no parameter for PID/TID
mov edi,[CURRENT_TASK]
shl edi,5
; have to check if caption is within application memory limit
; check is trivial, and if application resizes its memory,
; caption still can become over bounds
; diamond, 31.10.2006: check removed because with new memory manager
; there can be valid data after APPDATA.mem_size bound
; mov ecx,[edi*8+SLOT_BASE+APPDATA.mem_size]
; add ecx,255 ; max caption length
; cmp ebx,ecx
; ja .exit_fail
mov [edi*8+SLOT_BASE+APPDATA.wnd_caption],ebx
or [edi+window_data+WDATA.fl_wstyle],WSTYLE_HASCAPTION
call draw_window_caption
xor eax,eax ; eax = 0 (success)
ret
.get_window_caption:
dec eax ; subfunction #2 - get window caption
jnz .exit_fail
; not implemented yet
.exit_fail:
xor eax,eax
inc eax ; eax = 1 (fail)
ret
sys_window_move:
mov edi,[CURRENT_TASK]
shl edi,5
add edi,window_data
test [edi+WDATA.fl_wstate],WSTATE_MAXIMIZED
jnz .window_move_return
push dword [edi + WDATA.box.left] ; save old coordinates
push dword [edi + WDATA.box.top]
push dword [edi + WDATA.box.width]
push dword [edi + WDATA.box.height]
cmp eax,-1 ; set new position and size
je .no_x_reposition
mov [edi + WDATA.box.left], eax
.no_x_reposition:
cmp ebx,-1
je .no_y_reposition
mov [edi + WDATA.box.top], ebx
.no_y_reposition:
test [edi+WDATA.fl_wstate],WSTATE_ROLLEDUP
jnz .no_y_resizing
cmp ecx,-1
je .no_x_resizing
mov [edi + WDATA.box.width], ecx
.no_x_resizing:
cmp edx,-1
je .no_y_resizing
mov [edi + WDATA.box.height], edx
.no_y_resizing:
call check_window_position
call set_window_clientbox
pushad ; save for window fullscreen/resize
mov esi,edi
sub edi,window_data
shr edi,5
shl edi,8
add edi, SLOT_BASE + APPDATA.saved_box
mov ecx,4
cld
rep movsd
popad
pushad ; calculcate screen at new position
mov eax, [edi + WDATA.box.left]
mov ebx, [edi + WDATA.box.top]
mov ecx, [edi + WDATA.box.width]
mov edx, [edi + WDATA.box.height]
add ecx,eax
add edx,ebx
call calculatescreen
popad
pop edx ; calculcate screen at old position
pop ecx
pop ebx
pop eax
add ecx,eax
add edx,ebx
mov [dlx],eax ; save for drawlimits
mov [dly],ebx
mov [dlxe],ecx
mov [dlye],edx
call calculatescreen
mov [edi + WDATA.fl_redraw], 1 ; flag the process as redraw
mov eax,edi ; redraw screen at old position
xor esi,esi
call redrawscreen
mov [DONT_DRAW_MOUSE],byte 0 ; mouse pointer
mov [MOUSE_BACKGROUND],byte 0 ; no mouse under
mov [MOUSE_DOWN],byte 0 ; react to mouse up/down
call [draw_pointer]
mov [window_move_pr],0
.window_move_return:
ret
uglobal
window_move_pr dd 0x0
window_move_eax dd 0x0
window_move_ebx dd 0x0
window_move_ecx dd 0x0
window_move_edx dd 0x0
endg
;ok - 100% work
;nt - not tested
;---------------------------------------------------------------------------------------------
;eax
;0 - task switch counter. Ret switch counter in eax. Block. ok.
;1 - change task. Ret nothing. Block. ok.
;2 - performance control
; ebx
; 0 - enable or disable (inversion) PCE flag on CR4 for rdmpc in user mode.
; returned new cr4 in eax. Ret cr4 in eax. Block. ok.
; 1 - is cache enabled. Ret cr0 in eax if enabled else zero in eax. Block. ok.
; 2 - enable cache. Ret 1 in eax. Ret nothing. Block. ok.
; 3 - disable cache. Ret 0 in eax. Ret nothing. Block. ok.
;eax
;3 - rdmsr. Counter in edx. (edx:eax) [esi:edi, edx] => [edx:esi, ecx]. Ret in ebx:eax. Block. ok.
;4 - wrmsr. Counter in edx. (edx:eax) [esi:edi, edx] => [edx:esi, ecx]. Ret in ebx:eax. Block. ok.
;---------------------------------------------------------------------------------------------
sys_sheduler: ;noname & halyavin
cmp eax,0
je shed_counter
cmp eax,2
je perf_control
cmp eax,3
je rdmsr_instr
cmp eax,4
je wrmsr_instr
cmp eax,1
jne not_supported
call change_task ;delay,0
ret
shed_counter:
mov eax,[context_counter]
mov [esp+36],eax
not_supported:
ret
perf_control:
inc eax ;now eax=3
cmp ebx,eax
je cache_disable
dec eax
cmp ebx,eax
je cache_enable
dec eax
cmp ebx,eax
je is_cache_enabled
dec eax
cmp ebx,eax
je modify_pce
ret
rdmsr_instr:
;now counter in ecx
;(edx:eax) esi:edi => edx:esi
mov eax,esi
rdmsr
mov [esp+36],eax
mov [esp+24],edx ;ret in ebx?
ret
wrmsr_instr:
;now counter in ecx
;(edx:eax) esi:edi => edx:esi
; Fast Call MSR can't be destroy
; Íî MSR_AMD_EFER ìîæíî èçìåíÿòü, ò.ê. â ýòîì ðåãèñòðå ëèø
; âêëþ÷àþòñÿ/âûêëþ÷àþòñÿ ðàñøèðåííûå âîçìîæíîñòè
cmp ecx, MSR_SYSENTER_CS
je @f
cmp ecx, MSR_SYSENTER_ESP
je @f
cmp ecx, MSR_SYSENTER_EIP
je @f
cmp ecx, MSR_AMD_STAR
je @f
mov eax, esi
wrmsr
; mov [esp + 36], eax
; mov [esp + 24], edx ;ret in ebx?
@@:
ret
cache_disable:
mov eax,cr0
or eax,01100000000000000000000000000000b
mov cr0,eax
wbinvd ;set MESI
ret
cache_enable:
mov eax,cr0
and eax,10011111111111111111111111111111b
mov cr0,eax
ret
is_cache_enabled:
mov eax,cr0
mov ebx,eax
and eax,01100000000000000000000000000000b
jz cache_disabled
mov [esp+36],ebx
cache_disabled:
mov dword [esp+36],eax ;0
ret
modify_pce:
mov eax,cr4
; mov ebx,0
; or bx,100000000b ;pce
; xor eax,ebx ;invert pce
bts eax,8 ;pce=cr4[8]
mov cr4,eax
mov [esp+36],eax
ret
;---------------------------------------------------------------------------------------------
; check if pixel is allowed to be drawn
checkpixel:
push eax edx
mov edx,[ScreenWidth] ; screen x size
inc edx
imul edx, ebx
mov dl, [eax+edx+display_data] ; lea eax, [...]
xor ecx, ecx
mov eax, [CURRENT_TASK]
cmp al, dl
setne cl
pop edx eax
ret
iglobal
cpustring db 'CPU',0
endg
uglobal
background_defined db 0 ; diamond, 11.04.2006
endg
align 4
; check misc
checkmisc:
cmp [ctrl_alt_del], 1
jne nocpustart
mov ebp, cpustring
call fs_execute_from_sysdir
mov [ctrl_alt_del], 0
nocpustart:
cmp [mouse_active], 1
jne mouse_not_active
mov [mouse_active], 0
xor edi, edi
mov ecx, [TASK_COUNT]
set_mouse_event:
add edi, 256
or [edi+SLOT_BASE+APPDATA.event_mask], dword 100000b
loop set_mouse_event
mouse_not_active:
cmp [REDRAW_BACKGROUND],byte 0 ; background update ?
jz nobackgr
cmp [background_defined], 0
jz nobackgr
; mov [REDRAW_BACKGROUND],byte 2
; call change_task
xor edi, edi
mov ecx, [TASK_COUNT]
set_bgr_event:
add edi, 256
or [edi+SLOT_BASE+APPDATA.event_mask], 16
loop set_bgr_event
mov [draw_data+32 + RECT.left],dword 0
mov [draw_data+32 + RECT.top],dword 0
mov eax,[ScreenWidth]
mov ebx,[ScreenHeight]
mov [draw_data+32 + RECT.right],eax
mov [draw_data+32 + RECT.bottom],ebx
call drawbackground
mov [REDRAW_BACKGROUND],byte 0
mov [MOUSE_BACKGROUND],byte 0
nobackgr:
; system shutdown request
cmp [SYS_SHUTDOWN],byte 0
je noshutdown
mov edx,[shutdown_processes]
sub dl,2
cmp [SYS_SHUTDOWN],dl
jne no_mark_system_shutdown
mov edx,OS_BASE+0x3040
movzx ecx,byte [SYS_SHUTDOWN]
add ecx,5
markz:
mov [edx+TASKDATA.state],byte 3
add edx,0x20
loop markz
no_mark_system_shutdown:
call [disable_mouse]
dec byte [SYS_SHUTDOWN]
cmp [SYS_SHUTDOWN],byte 0
je system_shutdown
noshutdown:
mov eax,[TASK_COUNT] ; termination
mov ebx,TASK_DATA+TASKDATA.state
mov esi,1
newct:
mov cl,[ebx]
cmp cl,byte 3
jz terminate
cmp cl,byte 4
jz terminate
add ebx,0x20
inc esi
dec eax
jnz newct
ret
; redraw screen
redrawscreen:
; eax , if process window_data base is eax, do not set flag/limits
pushad
push eax
;;; mov eax,2
;;; call delay_hs
;mov ecx,0 ; redraw flags for apps
xor ecx,ecx
newdw2:
inc ecx
push ecx
mov eax,ecx
shl eax,5
add eax,window_data
cmp eax,[esp+4]
je not_this_task
; check if window in redraw area
mov edi,eax
cmp ecx,1 ; limit for background
jz bgli
mov eax, [edi + WDATA.box.left]
mov ebx, [edi + WDATA.box.top]
mov ecx, [edi + WDATA.box.width]
mov edx, [edi + WDATA.box.height]
add ecx,eax
add edx,ebx
mov ecx,[dlye] ; ecx = area y end ebx = window y start
cmp ecx,ebx
jb ricino
mov ecx,[dlxe] ; ecx = area x end eax = window x start
cmp ecx,eax
jb ricino
mov eax, [edi + WDATA.box.left]
mov ebx, [edi + WDATA.box.top]
mov ecx, [edi + WDATA.box.width]
mov edx, [edi + WDATA.box.height]
add ecx, eax
add edx, ebx
mov eax,[dly] ; eax = area y start edx = window y end
cmp edx,eax
jb ricino
mov eax,[dlx] ; eax = area x start ecx = window x end
cmp ecx,eax
jb ricino
bgli:
cmp edi,esi
jz ricino
mov eax,edi
add eax,draw_data-window_data
mov ebx,[dlx] ; set limits
mov [eax + RECT.left], ebx
mov ebx,[dly]
mov [eax + RECT.top], ebx
mov ebx,[dlxe]
mov [eax + RECT.right], ebx
mov ebx,[dlye]
mov [eax + RECT.bottom], ebx
sub eax,draw_data-window_data
cmp ecx,1
jne nobgrd
cmp esi,1
je newdw8
call drawbackground
newdw8:
nobgrd:
mov [eax + WDATA.fl_redraw],byte 1 ; mark as redraw
ricino:
not_this_task:
pop ecx
cmp ecx,[TASK_COUNT]
jle newdw2
pop eax
popad
ret
calculatebackground: ; background
; all black
mov edi, [img_background] ;IMG_BACKGROUND ; set background to black
xor eax, eax
mov ecx, 1023 ;0x0fff00 / 4
cld
rep stosd
mov edi,display_data ; set os to use all pixels
mov eax,0x01010101
mov ecx,1280*1024 / 4
rep stosd
mov byte [REDRAW_BACKGROUND], 0 ; do not draw background!
ret
uglobal
imax dd 0x0
endg
delay_ms: ; delay in 1/1000 sec
push eax
push ecx
mov ecx,esi
; <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
cnt1: in al,0x61
and al,0x10
cmp al,ah
jz cnt1
mov ah,al
loop cnt1
pop ecx
pop eax
ret
set_app_param:
push edi
mov edi,[TASK_BASE]
mov [edi+TASKDATA.event_mask],eax
pop edi
ret
delay_hs: ; delay in 1/100 secs
push eax
push ecx
push edx
mov edx,[timer_ticks]
add edx,eax
newtic:
mov ecx,[timer_ticks]
cmp edx,ecx
jbe zerodelay
call change_task
jmp newtic
zerodelay:
pop edx
pop ecx
pop eax
ret
memmove: ; memory move in bytes
; eax = from
; ebx = to
; ecx = no of bytes
test ecx, ecx
jle .ret
push esi edi ecx
mov edi, ebx
mov esi, eax
test ecx, not 11b
jz @f
push ecx
shr ecx, 2
rep movsd
pop ecx
and ecx, 11b
jz .finish
@@:
rep movsb
.finish:
pop ecx edi esi
.ret:
ret
; <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
sys_programirq:
mov edi,[TASK_BASE]
add eax,[edi+TASKDATA.mem_start]
cmp ebx,16
jae .not_owner
mov edi,[TASK_BASE]
mov edi,[edi+TASKDATA.pid]
cmp edi,[irq_owner+ebx*4]
je spril1
.not_owner:
mov [esp+36],dword 1
ret
spril1:
mov esi,eax
shl ebx,6
add ebx,irq00read
mov edi,ebx
mov ecx,16
cld
rep movsd
mov [esp+36],dword 0
ret
align 4
get_irq_data:
cmp eax,16
jae .not_owner
mov edx,eax ; check for correct owner
shl edx,2
add edx,irq_owner
mov edx,[edx]
mov edi,[TASK_BASE]
mov edi,[edi+TASKDATA.pid]
cmp edx,edi
je gidril1
.not_owner:
mov [esp+32],dword 2 ; ecx=2
ret
gidril1:
mov ebx,eax
shl ebx,12
add ebx,IRQ_SAVE
mov eax,[ebx]
mov ecx,1
test eax,eax
jz gid1
dec eax
mov esi,ebx
mov [ebx],eax
movzx ebx,byte [ebx+0x10]
add esi,0x10
mov edi,esi
inc esi
mov ecx,4000 / 4
cld
rep movsd
; xor ecx,ecx ; as result of 'rep' ecx=0
gid1:
mov [esp+36],eax
mov [esp+32],ecx
mov [esp+24],ebx
ret
set_io_access_rights:
pushad
mov edi, 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
cmp ebp,0 ; enable access - ebp = 0
jne siar1
; not ebx
; and [edi],byte bl
btr [edi], eax
popad
ret
siar1:
bts [edi], eax
; or [edi],byte bl ; disable access - ebp = 1
popad
ret
r_f_port_area:
test eax, eax
jnz free_port_area
; je r_port_area
; jmp free_port_area
; r_port_area:
pushad
cmp ebx,ecx ; beginning > end ?
ja rpal1
cmp ecx,65536
jae rpal1
mov esi,[RESERVED_PORTS]
test esi,esi ; no reserved areas ?
je rpal2
cmp esi,255 ; max reserved
jae rpal1
rpal3:
mov edi,esi
shl edi,4
add edi,RESERVED_PORTS
cmp ebx,[edi+8]
ja rpal4
cmp ecx,[edi+4]
jae rpal1
; jb rpal4
; jmp rpal1
rpal4:
dec esi
jnz rpal3
jmp rpal2
rpal1:
popad
mov eax,1
ret
rpal2:
popad
; enable port access at port IO map
cli
pushad ; start enable io map
cmp ecx,65536 ;16384
jae no_unmask_io ; jge
mov eax,ebx
new_port_access:
pushad
xor ebp,ebp ; enable - eax = port
call set_io_access_rights
popad
inc eax
cmp eax,ecx
jbe new_port_access
no_unmask_io:
popad ; end enable io map
sti
mov edi,[RESERVED_PORTS]
add edi,1
mov [RESERVED_PORTS],edi
shl edi,4
add edi,RESERVED_PORTS
mov esi,[TASK_BASE]
mov esi,[esi+TASKDATA.pid]
mov [edi],esi
mov [edi+4],ebx
mov [edi+8],ecx
xor eax, eax
ret
free_port_area:
pushad
mov esi,[RESERVED_PORTS] ; no reserved areas ?
test esi,esi
je frpal2
mov edx,[TASK_BASE]
mov edx,[edx+TASKDATA.pid]
frpal3:
mov edi,esi
shl edi,4
add edi,RESERVED_PORTS
cmp edx,[edi]
jne frpal4
cmp ebx,[edi+4]
jne frpal4
cmp ecx,[edi+8]
jne frpal4
jmp frpal1
frpal4:
dec esi
jnz frpal3
frpal2:
popad
mov eax,1
ret
frpal1:
mov ecx,256
sub ecx,esi
shl ecx,4
mov esi,edi
add esi,16
cld
rep movsb
dec dword [RESERVED_PORTS]
popad
; disable port access at port IO map
pushad ; start disable io map
cmp ecx,65536 ;16384
jge no_mask_io
mov eax,ebx
new_port_access_disable:
pushad
mov ebp,1 ; disable - eax = port
call set_io_access_rights
popad
inc eax
cmp eax,ecx
jbe new_port_access_disable
no_mask_io:
popad ; end disable io map
xor eax, eax
ret
reserve_free_irq:
mov ecx, 1
cmp ebx, 16
jae fril1
test eax,eax
jz reserve_irq
lea edi,[irq_owner+ebx*4]
mov edx,[edi]
mov eax,[TASK_BASE]
cmp edx,[eax+TASKDATA.pid]
jne fril1
dec ecx
mov [edi],ecx
fril1:
mov [esp+36],ecx ; return in eax
ret
reserve_irq:
lea edi,[irq_owner+ebx*4]
cmp dword [edi], 0
jnz ril1
mov edx,[TASK_BASE]
mov edx,[edx+TASKDATA.pid]
mov [edi],edx
dec ecx
ril1:
mov [esp+36],ecx ; return in eax
ret
drawbackground:
inc [mouse_pause]
cmp [SCR_MODE],word 0x12
je dbrv20
dbrv12:
cmp [SCR_MODE],word 0100000000000000b
jge dbrv20
cmp [SCR_MODE],word 0x13
je dbrv20
call vesa12_drawbackground
dec [mouse_pause]
call [draw_pointer]
ret
dbrv20:
cmp [BgrDrawMode],dword 1
jne bgrstr
call vesa20_drawbackground_tiled
dec [mouse_pause]
call [draw_pointer]
ret
bgrstr:
call vesa20_drawbackground_stretch
dec [mouse_pause]
call [draw_pointer]
ret
align 4
syscall_putimage: ; PutImage
mov edx,ecx
mov ecx,ebx
mov ebx, eax
sys_putimage:
test ecx,0x80008000
jnz .exit
test ecx,0x0000FFFF
jz .exit
test ecx,0xFFFF0000
jnz @f
.exit:
ret
@@:
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
.forced:
push ebp esi 0
mov ebp, putimage_get24bpp
mov esi, putimage_init24bpp
sys_putimage_bpp:
; call [disable_mouse] ; this will be done in xxx_putimage
; mov eax, vga_putimage
cmp [SCR_MODE], word 0x12
jz @f ;.doit
mov eax, vesa12_putimage
cmp [SCR_MODE], word 0100000000000000b
jae @f
cmp [SCR_MODE], word 0x13
jnz .doit
@@:
mov eax, vesa20_putimage
.doit:
inc [mouse_pause]
call eax
dec [mouse_pause]
pop ebp esi ebp
jmp [draw_pointer]
syscall_putimage_palette:
mov edi, esi
mov esi, edx
mov edx, ecx
mov ecx, ebx
mov ebx, eax
sys_putimage_palette:
; ebx = pointer to image
; ecx = [xsize]*65536 + [ysize]
; edx = [xstart]*65536 + [ystart]
; esi = number of bits per pixel, must be 8, 24 or 32
; edi = pointer to palette
; ebp = row delta
mov eax, [CURRENT_TASK]
shl eax, 8
add dx, word [eax+SLOT_BASE+APPDATA.wnd_clientbox.top]
rol edx, 16
add dx, word [eax+SLOT_BASE+APPDATA.wnd_clientbox.left]
rol edx, 16
.forced:
push ebp esi ebp
cmp esi, 8
jnz @f
mov ebp, putimage_get8bpp
mov esi, putimage_init8bpp
jmp sys_putimage_bpp
@@:
cmp esi, 24
jnz @f
mov ebp, putimage_get24bpp
mov esi, putimage_init24bpp
jmp sys_putimage_bpp
@@:
cmp esi, 32
jnz @f
mov ebp, putimage_get32bpp
mov esi, putimage_init32bpp
jmp sys_putimage_bpp
@@:
pop ebp esi
ret
putimage_init24bpp:
lea eax, [eax*3]
putimage_init8bpp:
ret
putimage_get24bpp:
mov eax, [esi]
add esi, 3
ret 4
putimage_get8bpp:
movzx eax, byte [esi]
push edx
mov edx, [esp+8]
mov eax, [edx+eax*4]
pop edx
inc esi
ret 4
putimage_init32bpp:
shl eax, 2
ret
putimage_get32bpp:
lodsd
ret 4
; eax x beginning
; ebx y beginning
; ecx x end
; edx y end
; edi color
__sys_drawbar:
mov esi,[current_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]
.forced:
inc [mouse_pause]
; call [disable_mouse]
cmp [SCR_MODE],word 0x12
je dbv20
sdbv20:
cmp [SCR_MODE],word 0100000000000000b
jge dbv20
cmp [SCR_MODE],word 0x13
je dbv20
call vesa12_drawbar
dec [mouse_pause]
call [draw_pointer]
ret
dbv20:
call vesa20_drawbar
dec [mouse_pause]
call [draw_pointer]
ret
kb_read:
push ecx edx
mov ecx,0x1ffff ; last 0xffff, new value in view of fast CPU's
kr_loop:
in al,0x64
test al,1
jnz kr_ready
loop kr_loop
mov ah,1
jmp kr_exit
kr_ready:
push ecx
mov ecx,32
kr_delay:
loop kr_delay
pop ecx
in al,0x60
xor ah,ah
kr_exit:
pop edx ecx
ret
kb_write:
push ecx edx
mov dl,al
; mov ecx,0x1ffff ; last 0xffff, new value in view of fast CPU's
; kw_loop1:
; in al,0x64
; test al,0x20
; jz kw_ok1
; loop kw_loop1
; mov ah,1
; jmp kw_exit
; kw_ok1:
in al,0x60
mov ecx,0x1ffff ; last 0xffff, new value in view of fast CPU's
kw_loop:
in al,0x64
test al,2
jz kw_ok
loop kw_loop
mov ah,1
jmp kw_exit
kw_ok:
mov al,dl
out 0x60,al
mov ecx,0x1ffff ; last 0xffff, new value in view of fast CPU's
kw_loop3:
in al,0x64
test al,2
jz kw_ok3
loop kw_loop3
mov ah,1
jmp kw_exit
kw_ok3:
mov ah,8
kw_loop4:
mov ecx,0x1ffff ; last 0xffff, new value in view of fast CPU's
kw_loop5:
in al,0x64
test al,1
jnz kw_ok4
loop kw_loop5
dec ah
jnz kw_loop4
kw_ok4:
xor ah,ah
kw_exit:
pop edx ecx
ret
kb_cmd:
mov ecx,0x1ffff ; last 0xffff, new value in view of fast CPU's
c_wait:
in al,0x64
test al,2
jz c_send
loop c_wait
jmp c_error
c_send:
mov al,bl
out 0x64,al
mov ecx,0x1ffff ; last 0xffff, new value in view of fast CPU's
c_accept:
in al,0x64
test al,2
jz c_ok
loop c_accept
c_error:
mov ah,1
jmp c_exit
c_ok:
xor ah,ah
c_exit:
ret
setmouse: ; set mousepicture -pointer
; ps2 mouse enable
mov [MOUSE_PICTURE],dword mousepointer
cli
; mov bl,0xa8 ; enable mouse cmd
; call kb_cmd
; call kb_read ; read status
; mov bl,0x20 ; get command byte
; call kb_cmd
; call kb_read
; or al,3 ; enable interrupt
; mov bl,0x60 ; write command
; push eax
; call kb_cmd
; pop eax
; call kb_write
; mov bl,0xd4 ; for mouse
; call kb_cmd
; mov al,0xf4 ; enable mouse device
; call kb_write
; call kb_read ; read status return
; com1 mouse enable
mov bx,0x3f8 ; combase
mov dx,bx
add dx,3
mov al,0x80
out dx,al
mov dx,bx
add dx,1
mov al,0
out dx,al
mov dx,bx
add dx,0
mov al,0x30*2 ; 0x30 / 4
out dx,al
mov dx,bx
add dx,3
mov al,2 ; 3
out dx,al
mov dx,bx
add dx,4
mov al,0xb
out dx,al
mov dx,bx
add dx,1
mov al,1
out dx,al
; com2 mouse enable
mov bx,0x2f8 ; combase
mov dx,bx
add dx,3
mov al,0x80
out dx,al
mov dx,bx
add dx,1
mov al,0
out dx,al
mov dx,bx
add dx,0
mov al,0x30*2
out dx,al
mov dx,bx
add dx,3
mov al,2
out dx,al
mov dx,bx
add dx,4
mov al,0xb
out dx,al
mov dx,bx
add dx,1
mov al,1
out dx,al
ret
_rdtsc:
bt [cpu_caps], CAPS_TSC
jnc ret_rdtsc
rdtsc
ret
ret_rdtsc:
mov edx,0xffffffff
mov eax,0xffffffff
ret
rerouteirqs:
cli
mov al,0x11 ; icw4, edge triggered
out 0x20,al
call pic_delay
out 0xA0,al
call pic_delay
mov al,0x20 ; generate 0x20 +
out 0x21,al
call pic_delay
mov al,0x28 ; generate 0x28 +
out 0xA1,al
call pic_delay
mov al,0x04 ; slave at irq2
out 0x21,al
call pic_delay
mov al,0x02 ; at irq9
out 0xA1,al
call pic_delay
mov al,0x01 ; 8086 mode
out 0x21,al
call pic_delay
out 0xA1,al
call pic_delay
mov al,255 ; mask all irq's
out 0xA1,al
call pic_delay
out 0x21,al
call pic_delay
mov ecx,0x1000
cld
picl1: call pic_delay
loop picl1
mov al,255 ; mask all irq's
out 0xA1,al
call pic_delay
out 0x21,al
call pic_delay
cli
ret
pic_delay:
jmp pdl1
pdl1: ret
sys_msg_board_str:
pushad
@@:
cmp [esi],byte 0
je @f
mov eax,1
movzx ebx,byte [esi]
call sys_msg_board
inc esi
jmp @b
@@:
popad
ret
uglobal
msg_board_data: times 4096 db 0
msg_board_count dd 0x0
endg
sys_msg_board:
; eax=1 : write : bl byte to write
; eax=2 : read : ebx=0 -> no data, ebx=1 -> data in al
mov ecx,[msg_board_count]
cmp eax, 1
jne smbl1
mov [msg_board_data+ecx],bl
inc ecx
and ecx, 4095
mov [msg_board_count], ecx
mov [check_idle_semaphore], 5
ret
smbl1:
cmp eax, 2
jne smbl2
test ecx, ecx
jz smbl21
; mov edi, msg_board_data
; mov esi, msg_board_data+1
; movzx eax, byte [edi]
mov eax, msg_board_data+1
mov ebx, msg_board_data
movzx edx, byte [ebx]
call memmove
; push ecx
; shr ecx, 2
; cld
; rep movsd
; pop ecx
; and ecx, 3
; rep movsb
dec [msg_board_count]
mov [esp+36], edx ;eax
mov [esp+24], dword 1
ret
smbl21:
mov [esp+36], ecx
mov [esp+24], ecx
smbl2:
ret
sys_process_def:
mov edi, [CURRENT_TASK]
dec eax ; 1 = set keyboard mode
jne no_set_keyboard_setup
shl edi,8
mov [edi+SLOT_BASE + APPDATA.keyboard_mode],bl
ret
no_set_keyboard_setup:
dec eax ; 2 = get keyboard mode
jne no_get_keyboard_setup
shl edi,8
movzx eax, byte [SLOT_BASE+edi + APPDATA.keyboard_mode]
mov [esp+36],eax
ret
no_get_keyboard_setup:
dec eax ; 3 = get keyboard ctrl, alt, shift
jne no_get_keyboard_cas
; xor eax,eax
; movzx eax,byte [shift]
; movzx ebx,byte [ctrl]
; shl ebx,2
; add eax,ebx
; movzx ebx,byte [alt]
; shl ebx,3
; add eax,ebx
;// mike.dld [
mov eax, [kb_state]
;// mike.dld ]
mov [esp+36],eax
ret
no_get_keyboard_cas:
dec eax
jnz no_add_keyboard_hotkey
mov eax, hotkey_list
@@:
cmp dword [eax+8], 0
jz .found_free
add eax, 16
cmp eax, hotkey_list+16*256
jb @b
mov dword [esp+36], 1
ret
.found_free:
mov [eax+8], edi
mov [eax+4], ecx
movzx ebx, bl
lea ebx, [hotkey_scancodes+ebx*4]
mov ecx, [ebx]
mov [eax], ecx
mov [ebx], eax
mov [eax+12], ebx
jecxz @f
mov [ecx+12], eax
@@:
and dword [esp+36], 0
ret
no_add_keyboard_hotkey:
dec eax
jnz no_del_keyboard_hotkey
movzx ebx, bl
lea ebx, [hotkey_scancodes+ebx*4]
mov eax, [ebx]
.scan:
test eax, eax
jz .notfound
cmp [eax+8], edi
jnz .next
cmp [eax+4], ecx
jz .found
.next:
mov eax, [eax]
jmp .scan
.notfound:
mov dword [esp+36], 1
ret
.found:
mov ecx, [eax]
jecxz @f
mov edx, [eax+12]
mov [ecx+12], edx
@@:
mov ecx, [eax+12]
mov edx, [eax]
mov [ecx], edx
xor edx, edx
mov [eax+4], edx
mov [eax+8], edx
mov [eax+12], edx
mov [eax], edx
mov [esp+36], edx
ret
no_del_keyboard_hotkey:
ret
align 4
sys_gs: ; direct screen access
cmp eax,1 ; resolution
jne no_gs1
mov eax,[ScreenWidth]
shl eax,16
mov ax,[ScreenHeight]
add eax,0x00010001
mov [esp+36],eax
ret
no_gs1:
cmp eax,2 ; bits per pixel
jne no_gs2
movzx eax,byte [ScreenBPP]
mov [esp+36],eax
ret
no_gs2:
cmp eax,3 ; bytes per scanline
jne no_gs3
mov eax,[BytesPerScanLine]
mov [esp+36],eax
ret
no_gs3:
mov [esp+36],dword -1
ret
align 4 ; PCI functions
sys_pci:
call pci_api
mov [esp+36],eax
ret
align 4 ; system functions
syscall_setpixel: ; SetPixel
mov edx,[TASK_BASE]
add eax,[edx-twdw+WDATA.box.left]
add ebx,[edx-twdw+WDATA.box.top]
mov edi,[current_slot]
add eax,[edi+APPDATA.wnd_clientbox.left]
add ebx,[edi+APPDATA.wnd_clientbox.top]
xor edi,edi ; no force
; mov edi,1
call [disable_mouse]
jmp [putpixel]
align 4
syscall_writetext: ; WriteText
mov edi,[TASK_BASE]
mov ebp,[edi-twdw+WDATA.box.left]
push esi
mov esi,[current_slot]
add ebp,[esi+APPDATA.wnd_clientbox.left]
shl ebp,16
add ebp,[edi-twdw+WDATA.box.top]
add bp,word[esi+APPDATA.wnd_clientbox.top]
pop esi
add ecx,[edi+TASKDATA.mem_start]
add eax,ebp
xor edi,edi
jmp dtext
align 4
syscall_openramdiskfile: ; OpenRamdiskFile
mov edi,[TASK_BASE]
add edi,TASKDATA.mem_start
add eax,[edi]
add edx,[edi]
mov esi,12
call fileread
mov [esp+36],ebx
ret
align 4
syscall_drawrect: ; DrawRect
mov edi,ecx
and edi,0x80FFFFFF
test ax,ax
je drectr
test bx,bx
je drectr
movzx ecx,ax
shr eax,16
movzx edx,bx
shr ebx,16
mov esi,[current_slot]
add eax,[esi+APPDATA.wnd_clientbox.left]
add ebx,[esi+APPDATA.wnd_clientbox.top]
add ecx,eax
add edx,ebx
jmp [drawbar]
drectr:
ret
align 4
syscall_getscreensize: ; GetScreenSize
movzx eax,word[ScreenWidth]
shl eax,16
mov ax,[ScreenHeight]
mov [esp+36],eax
ret
align 4
syscall_cdaudio: ; CD
cmp eax, 4
jb .audio
jz .eject
cmp eax, 5
jnz .ret
.load:
call .reserve
call LoadMedium
call .free
ret
.eject:
call .reserve
call clear_CD_cache
call allow_medium_removal
call EjectMedium
call .free
ret
.audio:
call sys_cd_audio
mov [esp+36],eax
.ret:
ret
.reserve:
call reserve_cd
mov eax, ebx
shr eax, 1
and eax, 1
inc eax
mov [ChannelNumber], ax
mov eax, ebx
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 .err
ret
.free:
call free_cd_channel
and [cd_status], 0
ret
.err:
call .free
pop eax
ret
align 4
syscall_delramdiskfile: ; DelRamdiskFile
mov edi,[TASK_BASE]
add edi,TASKDATA.mem_start
add eax,[edi]
call filedelete
mov [esp+36],eax
ret
align 4
syscall_writeramdiskfile: ; WriteRamdiskFile
mov edi,[TASK_BASE]
add edi,TASKDATA.mem_start
add eax,[edi]
add ebx,[edi]
call filesave
mov [esp+36],eax
ret
align 4
syscall_getpixel: ; GetPixel
mov ecx,[ScreenWidth]
inc ecx
xor edx,edx
div ecx
mov ebx,edx
xchg eax,ebx
call dword [GETPIXEL]
mov [esp+36],ecx
ret
align 4
syscall_readstring: ; ReadString
mov edi,[TASK_BASE]
add edi,TASKDATA.mem_start
add eax,[edi]
call read_string
mov [esp+36],eax
ret
align 4
syscall_drawline: ; DrawLine
mov edi,[TASK_BASE]
movzx edx,word[edi-twdw+WDATA.box.left]
mov ebp,edx
mov esi,[current_slot]
add ebp,[esi+APPDATA.wnd_clientbox.left]
add dx,word[esi+APPDATA.wnd_clientbox.left]
shl edx,16
add ebp,edx
movzx edx,word[edi-twdw+WDATA.box.top]
add eax,ebp
mov ebp,edx
add ebp,[esi+APPDATA.wnd_clientbox.top]
add dx,word[esi+APPDATA.wnd_clientbox.top]
shl edx,16
xor edi,edi
add edx,ebp
add ebx,edx
jmp [draw_line]
align 4
syscall_getirqowner: ; GetIrqOwner
cmp eax,16
jae .err
shl eax,2
add eax,irq_owner
mov eax,[eax]
mov [esp+36],eax
ret
.err:
or dword [esp+36], -1
ret
align 4
syscall_reserveportarea: ; ReservePortArea and FreePortArea
call r_f_port_area
mov [esp+36],eax
ret
align 4
syscall_threads: ; CreateThreads
call sys_threads
mov [esp+36],eax
ret
align 4
stack_driver_stat:
call app_stack_handler ; Stack status
; mov [check_idle_semaphore],5 ; enable these for zero delay
; call change_task ; between sent packet
mov [esp+36],eax
ret
align 4
socket: ; Socket interface
call app_socket_handler
; mov [check_idle_semaphore],5 ; enable these for zero delay
; call change_task ; between sent packet
mov [esp+36],eax
mov [esp+24],ebx
ret
align 4
user_events: ; User event times
mov eax,0x12345678
mov [esp+36],eax
ret
align 4
read_from_hd: ; Read from hd - fn not in use
mov edi,[TASK_BASE]
add edi,TASKDATA.mem_start
add eax,[edi]
add ecx,[edi]
add edx,[edi]
call file_read
mov [esp+36],eax
mov [esp+24],ebx
ret
align 4
paleholder:
ret
; --------------- APM ---------------------
apm_entry dp 0
apm_vf dd 0
align 4
sys_apm:
cmp word [apm_vf], 0 ; Check APM BIOS enable
jne @f
or [esp + 56], byte 1 ; error
mov [esp + 36], dword 8 ; 32-bit protected-mode interface not supported
ret
@@:
xchg eax, ecx
xchg ebx, ecx
cmp al, 3
ja @f
and [esp + 56], byte 0xfe ; emulate func 0..3 as func 0
mov eax, [apm_vf]
mov [esp + 36], eax
shr eax, 16
mov [esp + 32], eax
ret
@@:
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 + 8 ], edi
mov [esp + 12], esi
mov [esp + 24], ebx
mov [esp + 28], edx
mov [esp + 32], ecx
mov [esp + 36], eax
setc al
and [esp + 56], byte 0xfe
or [esp + 56], al
ret
; -----------------------------------------
align 4
undefined_syscall: ; Undefined system call
mov [esp+36],dword -1
ret
align 4
system_shutdown: ; shut down the system
cmp byte [BOOT_VAR+0x9030], 1
jne @F
ret
@@:
call stop_all_services
push 3 ; stop playing cd
pop eax
call sys_cd_audio
yes_shutdown_param:
cli
mov eax, kernel_file ; load kernel.mnt to 0x8000:0
push 12
pop esi
xor ebx,ebx
or ecx,-1
mov edx, OS_BASE+0x80000
call fileread
mov esi, restart_kernel_4000+OS_BASE+0x10000 ; move kernel re-starter to 0x4000:0
mov edi,OS_BASE+0x40000
mov ecx,1000
rep movsb
mov esi,OS_BASE+0x2F0000 ; restore 0x0 - 0xffff
mov edi, OS_BASE
mov ecx,0x10000/4
cld
rep movsd
call restorefatchain
mov al, 0xFF
out 0x21, al
out 0xA1, al
mov word [OS_BASE+0x467+0],pr_mode_exit
mov word [OS_BASE+0x467+2],0x1000
mov al,0x0F
out 0x70,al
mov al,0x05
out 0x71,al
mov al,0xFE
out 0x64,al
hlt
include "data32.inc"
__REV__ = __REV
uglobals_size = $ - endofcode
diff16 "end of kernel code",0,$