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kolibrios/kernel/trunk/kernel.asm
Ivan Poddubny bd15d25cab No task gates in the IDT. 
No TSSs for interrupt handlers.
More free memory.
Faster task switch and interrupt handling.
Smaller sys32.inc.

git-svn-id: svn://kolibrios.org@8 a494cfbc-eb01-0410-851d-a64ba20cac60
2005-10-16 13:30:23 +00:00

5633 lines
116 KiB
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; Kolibri OS - based on source code Menuet OS, but not 100% compatible.
;;
;; See file COPYING or GNU.TXT for details with these additional details:
;; - All code written in 32 bit x86 assembly language
;; - No external code (eg. bios) at process execution time
;;
;;
;; Compile with last version FASM
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
include "kglobals.inc"
include "lang.inc"
WinMapAddress equ 0x460000
display_data = 0x460000
max_processes equ 255
window_data equ 0x0000
tss_data equ 0xD20000
;tss_step equ (128+2048) ; tss & i/o - 16384 ports, * 256=557056
tss_step equ (128+8192) ; tss & i/o - 65535 ports, * 256=557056*4
draw_data equ 0xC00000
sysint_stack_data equ 0xC03000
twdw equ (0x3000-window_data)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; Included files:
;;
;; Kernel16.inc
;; - Booteng.inc English text for bootup
;; - Bootcode.inc Hardware setup
;; - Pci16.inc PCI functions
;;
;; Kernel32.inc
;; - Sys32.inc Process management
;; - Shutdown.inc Shutdown and restart
;; - Fat32.inc Read / write hd
;; - Vesa12.inc Vesa 1.2 driver
;; - Vesa20.inc Vesa 2.0 driver
;; - Vga.inc VGA driver
;; - Stack.inc Network interface
;; - Mouse.inc Mouse pointer
;; - Scincode.inc Window skinning
;; - Pci32.inc PCI functions
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; 16 BIT ENTRY FROM BOOTSECTOR ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
use16
org 0x10000
macro diff16 title,l2
{
local s,d,l1
s = l2
display title,': 0x'
repeat 8
d = 48 + s shr ((8-%) shl 2) and $0F
if d > 57
d = d + 65-57-1
end if
display d
end repeat
display 13,10
}
jmp start_of_code
; mike.dld {
db 0
dd servetable-0x10000
draw_line dd __sys_draw_line
disable_mouse dd __sys_disable_mouse
draw_pointer dd __sys_draw_pointer
drawbar dd __sys_drawbar
putpixel dd __sys_putpixel
; } mike.dld
version db 'Kolibri OS version 0.5.1.0 ',13,10,13,10,0
;dd endofcode-0x10000
;db 'Boot02'
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
include "boot/preboot.inc"
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
preboot_lfb db 0
preboot_bootlog db 0
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; 16 BIT INCLUDED FILES ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
include "kernel16.inc"
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; SWITCH TO 32 BIT PROTECTED MODE ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
os_data = os_data_l-gdts ; GDTs
os_code = os_code_l-gdts
int_code equ int_code_l-gdts
int_data equ int_data_l-gdts
tss0sys equ tss0sys_l-gdts
graph_data equ 3+graph_data_l-gdts
tss0 equ tss0_l-gdts
app_code equ 3+app_code_l-gdts
app_data equ 3+app_data_l-gdts
; CR0 Flags - Protected mode and Paging
mov ecx,0x00000001
;and ebx,65535
;cmp ebx,00100000000000000b ; lfb -> paging
;jb no_paging
;mov ax,0x0000
;mov es,ax
;mov al,[es:0x901E]
;cmp al,1
;je no_paging
;or ecx, 0x80000000
;no_paging:
; Enabling 32 bit protected mode
sidt [cs:old_ints_h-0x10000]
cli ; disable all irqs
cld
mov al,255 ; mask all irqs
out 0xa1,al
out 0x21,al
l.5: in al, 0x64 ; Enable A20
test al, 2
jnz l.5
mov al, 0xD1
out 0x64, al
l.6: in al, 0x64
test al, 2
jnz l.6
mov al, 0xDF
out 0x60, al
lgdt [cs:gdts-0x10000] ; Load GDT
mov eax, cr0 ; Turn on paging // protected mode
or eax, ecx
and eax, 10011111b *65536*256 + 0xffffff ; caching enabled
mov cr0, eax
jmp byte $+2
mov ax,os_data ; Selector for os
mov ds,ax
mov es,ax
mov fs,ax
mov gs,ax
mov ss,ax
mov esp,0x30000 ; Set stack
jmp pword os_code:B32 ; jmp to enable 32 bit mode
use32
iglobal
boot_memdetect db 'Determining amount of memory',0
boot_fonts db 'Fonts loaded',0
boot_tss db 'Setting TSSs',0
boot_cpuid db 'Reading CPUIDs',0
boot_devices db 'Detecting devices',0
boot_timer db 'Setting timer',0
boot_irqs db 'Reprogramming IRQs',0
boot_setmouse db 'Setting mouse',0
boot_windefs db 'Setting window defaults',0
boot_bgr db 'Calculating background',0
boot_resirqports db 'Reserving IRQs & ports',0
boot_setrports db 'Setting addresses for IRQs',0
boot_setostask db 'Setting OS task',0
boot_allirqs db 'Unmasking all IRQs',0
boot_tsc db 'Reading TSC',0
boot_pal_ega db 'Setting EGA/CGA 320x200 palette',0
boot_pal_vga db 'Setting VGA 640x480 palette',0
boot_mtrr db 'Setting MTRR',0
boot_tasking db 'All set - press ESC to start',0
endg
iglobal
boot_y dd 10
endg
boot_log:
pushad
mov edx,esi
.bll3: inc edx
cmp [edx],byte 0
jne .bll3
sub edx,esi
mov eax,10*65536
mov ax,word [boot_y]
add [boot_y],dword 10
mov ebx,0xffffff
mov ecx,esi
mov edi,1
call dtext
mov [novesachecksum],1000
call checkEgaCga
cmp [preboot_blogesc],byte 1
je .bll2
cmp esi,boot_tasking
jne .bll2
; begin ealex 04.08.05
; in al,0x61
; and al,01111111b
; out 0x61,al
; end ealex 04.08.05
.bll1: in al,0x60 ; wait for ESC key press
cmp al,129
jne .bll1
.bll2: popad
ret
uglobal
cpuid_0 dd 0,0,0,0
cpuid_1 dd 0,0,0,0
cpuid_2 dd 0,0,0,0
cpuid_3 dd 0,0,0,0
endg
iglobal
firstapp db 'LAUNCHER '
char db 'CHAR MT '
char2 db 'CHAR2 MT '
bootpath db '/KOLIBRI '
bootpath2 db 0
vmode db 'VMODE MDR'
vrr_m db 'VRR_M '
endg
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; 32 BIT ENTRY ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
align 4
B32:
; CLEAR 0x280000-0xF00000
xor eax,eax
mov edi,0x280000
mov ecx,(0x100000*0xF-0x280000) / 4
cld
rep stosd
; CLEAR 0x80000-0x90000
; xor eax,eax
mov edi,0x80000
mov ecx,(0x90000-0x80000)/4
; cld
rep stosd
; CLEAR KERNEL UNDEFINED GLOBALS
mov edi, endofcode
mov ecx, (uglobals_size/4)+4
rep stosd
; SAVE & CLEAR 0-0xffff
mov esi,0x0000
mov edi,0x2F0000
mov ecx,0x10000 / 4
cld
rep movsd
xor eax,eax
mov edi,0
mov ecx,0x10000 / 4
cld
rep stosd
; SAVE REAL MODE VARIABLES
; movzx eax,byte [0x2f0000+0x9010] ; mouse port
; mov [0xF604],byte 1 ;al
mov al,[0x2f0000+0x9000] ; bpp
mov [0xFBF1],al
movzx eax,word [0x2f0000+0x900A] ; X max
dec eax
mov [0xfe00],eax
movzx eax,word [0x2f0000+0x900C] ; Y max
dec eax
mov [0xfe04],eax
movzx eax,word [0x2f0000+0x9008] ; screen mode
mov [0xFE0C],eax
mov eax,[0x2f0000+0x9014] ; Vesa 1.2 bnk sw add
mov [0xE030],eax
mov [0xfe08],word 640*4 ; Bytes PerScanLine
cmp [0xFE0C],word 0x13 ; 320x200
je @f
cmp [0xFE0C],word 0x12 ; VGA 640x480
je @f
mov ax,[0x2f0000+0x9001] ; for other modes
mov [0xfe08],ax
@@:
; GRAPHICS ADDRESSES
;mov eax,0x100000*8 ; LFB address
;cmp [0xfe0c],word 0x13
;je no_d_lfb
;cmp [0xfe0c],word 0x12
;je no_d_lfb
;cmp [0x2f0000+0x901e],byte 1
;jne no_d_lfb
mov byte [0x2f0000+0x901e],0x0
mov eax,[0x2f0000+0x9018]
;no_d_lfb:
mov [0xfe80],eax
cmp [0xfe0c],word 0100000000000000b
jge setvesa20
cmp [0xfe0c],word 0x13
je v20ga32
mov [0xe020],dword Vesa12_putpixel24 ; Vesa 1.2
mov [0xe024],dword Vesa12_getpixel24
cmp [0xfbf1],byte 24
jz ga24
mov [0xe020],dword Vesa12_putpixel32
mov [0xe024],dword Vesa12_getpixel32
ga24:
jmp v20ga24
setvesa20:
mov [0xe020],dword Vesa20_putpixel24 ; Vesa 2.0
mov [0xe024],dword Vesa20_getpixel24
cmp [0xfbf1],byte 24
jz v20ga24
v20ga32:
mov [0xe020],dword Vesa20_putpixel32
mov [0xe024],dword Vesa20_getpixel32
v20ga24:
cmp [0xfe0c],word 0x12 ; 16 C VGA 640x480
jne no_mode_0x12
mov [0xe020],dword VGA_putpixel
mov [0xe024],dword Vesa20_getpixel32
no_mode_0x12:
; MEMORY MODEL
; mov [0xfe84],dword 0x100000*16 ; apps mem base address
; movzx ecx,byte [0x2f0000+0x9030]
; dec ecx
; mov eax,16*0x100000 ; memory-16
; shl eax,cl
; mov [0xfe8c],eax ; memory for use
; cmp eax,16*0x100000
; jne no16mb
; mov [0xfe84],dword 0xD80000 ; !!! 10 !!!
; no16mb:
; init:
; 1) 0xFE84 - applications base
; 2) 0xFE8C - total amount of memory
xor edi, edi
m_GMS_loop:
add edi, 0x400000
mov eax, dword [edi]
mov dword [edi], 'TEST'
wbinvd
cmp dword [edi], 'TEST'
jne m_GMS_exit
cmp dword [0], 'TEST'
je m_GMS_exit
mov dword [es:edi], eax
jmp m_GMS_loop
m_GMS_exit:
mov [edi], eax
; now edi contains the EXACT amount of memory
mov eax, 0x100000*16
cmp edi, eax ;0x100000*16
jb $ ; less than 16 Mb
mov dword [0xFE84], eax ;0x100000*16
cmp edi, eax ;0x100000*16
jne @f
mov dword [0xFE84], 0xD80000 ; =0x100000*13.5
@@:
mov dword [0xFE8C], edi
;!!!!!!!!!!!!!!!!!!!!!!!!!!
include 'detect/disks.inc'
;!!!!!!!!!!!!!!!!!!!!!!!!!!
; CHECK EXTRA REGION
; ENABLE PAGING
mov eax,cr0
or eax,0x80000000
mov cr0,eax
jmp $+2
mov dword [0xfe80],0x800000
;Set base of graphic segment to linear address of LFB
mov eax,[0xfe80] ; set for gs
mov [graph_data_l+2],ax
shr eax,16
mov [graph_data_l+4],al
mov [graph_data_l+7],ah
; READ RAMDISK IMAGE FROM HD
;!!!!!!!!!!!!!!!!!!!!!!!
include 'boot/rdload.inc'
;!!!!!!!!!!!!!!!!!!!!!!!
; mov [dma_hdd],1
; CALCULATE FAT CHAIN FOR RAMDISK
call calculatefatchain
; LOAD VMODE DRIVER
;!!!!!!!!!!!!!!!!!!!!!!!
include 'vmodeld.inc'
;!!!!!!!!!!!!!!!!!!!!!!!
; LOAD FONTS I and II
mov [0x3000],dword 1
mov [0x3004],dword 1
mov [0x3010],dword 0x3020
mov eax,char
mov esi,12
xor ebx,ebx
mov ecx,26000
mov edx,0x37000
call fileread
mov eax,char2
mov esi,12
xor ebx,ebx
mov ecx,26000
mov edx,0x30000
call fileread
mov esi,boot_fonts
call boot_log
; PRINT AMOUNT OF MEMORY
mov esi, boot_memdetect
call boot_log
movzx ecx, word [boot_y]
or ecx, (10+29*6) shl 16 ; "Determining amount of memory"
sub ecx, 10
mov edx, 0xFFFFFF
mov ebx, [0xFE8C]
shr ebx, 20
mov edi, 1
mov eax, 0x00040000
call display_number
; CHECK EXTENDED REGION
; mov dword [0x80000000],0x12345678
; cmp dword [0x80000000],0x12345678
; jz extended_region_found
; mov esi,boot_ext_region
; call boot_log
; jmp $
;extended_region_found:
call MEM_Init
;add 0x800000-0xc00000 area
cmp word [0xfe0c],0x13
jle .less_memory
mov eax,0x80000000 ;linear address
mov ebx,0x400000 shr 12 ;size in pages (4Mb)
mov ecx,0x800000 ;physical address
jmp .end_first_block
.less_memory:
mov eax,0x80180000 ;linear address
mov ebx,0x280000 shr 12 ;size in pages (2.5Mb)
mov ecx,0x980000 ;physical address
.end_first_block:
call MEM_Add_Heap ;nobody can lock mutex yet
call create_general_page_table
;add 0x1000000(0xd80000)-end_of_memory area
mov eax,second_base_address
mov ebx,[0xfe8c]
mov ecx,[0xfe84]
sub ebx,ecx
shr ebx,12
add eax,ecx
call MEM_Add_Heap
;init physical memory manager.
call Init_Physical_Memory_Manager
; REDIRECT ALL IRQ'S TO INT'S 0x20-0x2f
mov esi,boot_irqs
call boot_log
call rerouteirqs
mov esi,boot_tss
call boot_log
; BUILD SCHEDULER
call build_scheduler ; sys32.inc
; LOAD IDT
; <IP 05.02.2005>
lidt [cs:idtreg] ;[cs:idts]
; </IP>
; READ CPUID RESULT
mov esi,boot_cpuid
call boot_log
pushfd ; get current flags
pop eax
mov ecx,eax
xor eax,0x00200000 ; attempt to toggle ID bit
push eax
popfd
pushfd ; get new EFLAGS
pop eax
push ecx ; restore original flags
popfd
and eax,0x00200000 ; if we couldn't toggle ID,
and ecx,0x00200000 ; then this is i486
cmp eax,ecx
jz nopentium
; It's Pentium or later. Use CPUID
mov edi,cpuid_0
mov esi,0
cpuid_new_read:
mov eax,esi
cpuid
call cpuid_save
add edi,4*4
cmp esi,3
jge cpuid_done
cmp esi,[cpuid_0]
jge cpuid_done
inc esi
jmp cpuid_new_read
cpuid_save:
mov [edi+00],eax
mov [edi+04],ebx
mov [edi+8],ecx
mov [edi+12],edx
ret
cpuid_done:
nopentium:
; CR4 flags - enable fxsave / fxrstore
;
; finit
; mov eax,1
; cpuid
; test edx,1000000h
; jz fail_fpu
; mov eax,cr4
; or eax,200h ; Enable fxsave/fxstor
; mov cr4,eax
; fail_fpu:
; DETECT DEVICES
mov esi,boot_devices
call boot_log
call detect_devices
; TIMER SET TO 1/100 S
mov esi,boot_timer
call boot_log
mov al,0x34 ; set to 100Hz
out 0x43,al
mov al,0x9b ; lsb 1193180 / 1193
out 0x40,al
mov al,0x2e ; msb
out 0x40,al
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
;include 'detect/commouse.inc'
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
; SET MOUSE
mov esi,boot_setmouse
call boot_log
call setmouse
; SET PRELIMINARY WINDOW STACK AND POSITIONS
mov esi,boot_windefs
call boot_log
call setwindowdefaults
; SET BACKGROUND DEFAULTS
mov esi,boot_bgr
call boot_log
call calculatebackground
; RESERVE SYSTEM IRQ'S JA PORT'S
mov esi,boot_resirqports
call boot_log
call reserve_irqs_ports
; SET PORTS FOR IRQ HANDLERS
mov esi,boot_setrports
call boot_log
call setirqreadports
; SET UP OS TASK
mov esi,boot_setostask
call boot_log
; name for OS/IDLE process
mov [0x80000+256+0],dword 'OS/I'
mov [0x80000+256+4],dword 'DLE '
; task list
mov [0x3004],dword 2 ; number of processes
mov [0x3000],dword 0 ; process count - start with os task
mov [0x3020+0xE],byte 1 ; on screen number
mov [0x3020+0x4],dword 1 ; process id number
; set default flags & stacks
mov [l.eflags],dword 0x11202 ; sti and resume
mov [l.ss0], os_data
;mov [l.ss1], ring1_data
;mov [l.ss2], ring2_data
;mov [l.esp0], 0x52000
;mov [l.esp1], 0x53000
;mov [l.esp2], 0x54000
; osloop - TSS
mov eax,cr3
mov [l.cr3],eax
mov [l.eip],osloop
mov [l.esp],0x30000
mov [l.cs],os_code
mov [l.ss],os_data
mov [l.ds],os_data
mov [l.es],os_data
mov [l.fs],os_data
mov [l.gs],os_data
; move tss to tss_data+tss_step
mov esi,tss_sceleton
mov edi,tss_data+tss_step
mov ecx,120/4
cld
rep movsd
mov ax,tss0
ltr ax
; READ TSC / SECOND
mov esi,boot_tsc
call boot_log
call _rdtsc
mov ecx,eax
mov esi,250 ; wait 1/4 a second
call delay_ms
call _rdtsc
sub eax,ecx
shl eax,2
mov [0xf600],eax ; save tsc / sec
; SET VARIABLES
call set_variables
; STACK AND FDC
call stack_init
call fdc_init
; PALETTE FOR 320x200 and 640x480 16 col
cmp [0xfe0c],word 0x12
jne no_pal_vga
mov esi,boot_pal_vga
call boot_log
call paletteVGA
no_pal_vga:
cmp [0xfe0c],word 0x13
jne no_pal_ega
mov esi,boot_pal_ega
call boot_log
call palette320x200
no_pal_ega:
; LOAD DEFAULT SKIN
call load_default_skin
; MTRR'S
call enable_mtrr
; LOAD FIRST APPLICATION
mov [0x3000],dword 1 ;1
mov [0x3004],dword 1 ;1
cli
mov al,[0x2f0000+0x9030]
cmp al,1
jne no_load_vrr_m
mov eax,vrr_m
call start_application_fl
cmp eax,2 ; if no vrr_m app found
je first_app_found
no_load_vrr_m:
mov eax,firstapp
call start_application_fl
cmp eax,2 ; if no first app found - halt
je first_app_found
mov eax, 0xDEADBEEF
hlt ;jmp $
first_app_found:
cli
mov [0x3004],dword 2
mov [0x3000],dword 1
; START MULTITASKING
mov esi,boot_tasking
call boot_log
mov [0xe000],byte 1 ; multitasking enabled
mov al, 0xf6 ; <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
call kb_write
mov ecx,0
wait_loop_1: ; variant 2
; <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 8042
in al,64h
and al,00000010b ; <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
; <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 8042
loopnz wait_loop_1
; SET KEYBOARD PARAMETERS
; 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, 00100010b ; 24 500 ;00100100b ; 20 500
call kb_write
call kb_read
;// mike.dld [
call set_lights
;// mike.dld ]
; UNMASK ALL IRQ'S
mov esi,boot_allirqs
call boot_log
cli ;guarantee forbidance of interrupts.
mov al,0 ; unmask all irq's
out 0xA1,al
out 0x21,al
mov ecx,32
ready_for_irqs:
mov al,0x20 ; ready for irqs
out 0x20,al
out 0xa0,al
loop ready_for_irqs ; flush the queue
; mov [dma_hdd],1
sti
jmp $ ; wait here for timer to take control
; Fly :)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; ;
; MAIN OS LOOP ;
; ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
align 32
osloop:
call check_mouse_data
call [draw_pointer]
call checkbuttons
call main_loop_sys_getkey
call checkwindows
call check_window_move_request
call checkmisc
call checkEgaCga
call stack_handler
call checkidle
call check_fdd_motor_status
jmp osloop
;temp_pointers:
; rd 32
; seed dd 0x12345678
checkidle:
pushad
cmp [check_idle_semaphore],0
jne no_idle_state
call change_task
mov eax,[idlemem]
mov ebx,[timer_ticks] ;[0xfdf0]
cmp eax,ebx
jnz idle_exit
call _rdtsc
mov ecx,eax
idle_loop:
hlt
cmp [check_idle_semaphore],0
jne idle_loop_exit
mov eax,[timer_ticks] ;[0xfdf0]
cmp ebx,eax
jz idle_loop
idle_loop_exit:
mov [idlemem],eax
call _rdtsc
sub eax,ecx
mov ebx,[idleuse]
add ebx,eax
mov [idleuse],ebx
popad
ret
idle_exit:
mov ebx,[timer_ticks] ;[0xfdf0]
mov [idlemem],ebx
call change_task
popad
ret
no_idle_state:
dec [check_idle_semaphore]
mov ebx,[timer_ticks] ;[0xfdf0]
mov [idlemem],ebx
call change_task
popad
ret
uglobal
idlemem dd 0x0
idleuse dd 0x0
idleusesec dd 0x0
check_idle_semaphore dd 0x0
endg
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; ;
; INCLUDED SYSTEM FILES ;
; ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
include "kernel32.inc"
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; ;
; KERNEL FUNCTIONS ;
; ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
enable_mtrr:
pushad
cmp [0x2f0000+0x901c],byte 2
je no_mtrr
mov eax,[0xFE0C] ; if no LFB then no MTRR
test eax,0100000000000000b
jz no_mtrr
mov edx,[cpuid_1+3*4] ; edx - MTRR's supported ?
test edx,1000000000000b
jz no_mtrr
call find_empty_mtrr
cmp ecx,0
jz no_mtrr
mov esi,boot_mtrr ; 'setting mtrr'
call boot_log
mov edx,0x0 ; LFB , +8 M , write combine
mov eax,[0x2f9018]
or eax,1
wrmsr
inc ecx
mov edx,0xf
mov eax,0xff800800
wrmsr
mov ecx,0x2ff ; enable mtrr's
rdmsr
or eax,100000000000b ; set
wrmsr
no_mtrr:
popad
ret
find_empty_mtrr: ; 8 pairs checked
mov ecx,0x201-2
mtrr_find:
add ecx,2
cmp ecx,0x200+8*2
jge no_free_mtrr
rdmsr
test eax,0x0800
jnz mtrr_find
dec ecx
ret
no_free_mtrr:
mov ecx,0
ret
reserve_irqs_ports:
pushad
mov [irq_owner+4*0],byte 1 ; timer
mov [irq_owner+4*1],byte 1 ; keyboard
mov [irq_owner+4*5],byte 1 ; sound blaster
mov [irq_owner+4*6],byte 1 ; floppy diskette
mov [irq_owner+4*13],byte 1 ; math co-pros
mov [irq_owner+4*14],byte 1 ; ide I
mov [irq_owner+4*15],byte 1 ; ide II
movzx eax,byte [0xf604] ; mouse irq
dec eax
add eax,mouseirqtable
movzx eax,byte [eax]
shl eax,2
mov [irq_owner+eax],byte 1
; RESERVE PORTS
mov edi,1 ; 0x00-0xff
mov [0x2d0000],edi
shl edi,4
mov [0x2d0000+edi+0],dword 1
mov [0x2d0000+edi+4],dword 0x0
mov [0x2d0000+edi+8],dword 0xff
cmp [0xf604],byte 2 ; com1 mouse -> 0x3f0-0x3ff
jne ripl1
inc dword [0x2d0000]
mov edi,[0x2d0000]
shl edi,4
mov [0x2d0000+edi+0],dword 1
mov [0x2d0000+edi+4],dword 0x3f0
mov [0x2d0000+edi+8],dword 0x3ff
ripl1:
cmp [0xf604],byte 3 ; com2 mouse -> 0x2f0-0x2ff
jne ripl2
inc dword [0x2d0000]
mov edi,[0x2d0000]
shl edi,4
mov [0x2d0000+edi+0],dword 1
mov [0x2d0000+edi+4],dword 0x2f0
mov [0x2d0000+edi+8],dword 0x2ff
ripl2:
popad
ret
iglobal
mouseirqtable db 12 ; ps2
db 4 ; com1
db 3 ; com2
endg
setirqreadports:
mov [irq12read+0],dword 0x60 + 0x01000000 ; read port 0x60 , byte
mov [irq12read+4],dword 0 ; end of port list
mov [irq04read+0],dword 0x3f8 + 0x01000000 ; read port 0x3f8 , byte
mov [irq04read+4],dword 0 ; end of port list
mov [irq03read+0],dword 0x2f8 + 0x01000000 ; read port 0x2f8 , byte
mov [irq03read+4],dword 0 ; end of port list
ret
iglobal
process_number dd 0x1
endg
uglobal
novesachecksum dd 0x0
endg
checkEgaCga:
cmp [0xfe0c],dword 0x13
je cnvl
ret
cnvl:
pushad
mov ecx,[0xfb0a]
cmp ecx,[novesachecksum]
jne novesal
popad
ret
novesal:
mov [novesachecksum],ecx
mov ecx,0
movzx eax,word [0xfb0c]
cmp eax,100
jge m13l3
mov eax,100
m13l3:
cmp eax,480-100
jbe m13l4
mov eax,480-100
m13l4:
sub eax,100
imul eax,640*4
add ecx,eax
movzx eax,word [0xfb0a]
cmp eax,160
jge m13l1
mov eax,160
m13l1:
cmp eax,640-160
jbe m13l2
mov eax,640-160
m13l2:
sub eax,160
shl eax,2
add ecx,eax
mov esi,[0xfe80]
add esi,ecx
mov edi,0xa0000
mov edx,200
mov ecx,320
cld
m13pix:
lodsd
push eax
mov ebx,eax
and eax,(128+64+32) ; blue
shr eax,5
and ebx,(128+64+32)*256 ; green
shr ebx,8+2
add eax,ebx
pop ebx
and ebx,(128+64)*256*256 ; red
shr ebx,8+8
add eax,ebx
stosb
loop m13pix
mov ecx,320
add esi,4*(640-320)
dec edx
jnz m13pix
popad
ret
palette320x200:
mov edx,0x3c8
xor eax, eax
out dx,al
mov ecx,256
mov edx,0x3c9
xor eax,eax
palnew:
mov al,0
test ah,64
jz pallbl1
add al,21
pallbl1:
test ah,128
jz pallbl2
add al,42
pallbl2:
out dx,al
mov al,0
test ah,8
jz pallbl3
add al,8
pallbl3:
test ah,16
jz pallbl4
add al,15
pallbl4:
test ah,32
jz pallbl5
add al,40
pallbl5:
out dx,al
mov al,0
test ah,1
jz pallbl6
add al,8
pallbl6:
test ah,2
jz pallbl7
add al,15
pallbl7:
test ah,4
jz pallbl8
add al,40
pallbl8:
out dx,al
add ah,1
loop palnew
ret
set_variables:
mov ecx,0x100 ; flush port 0x60
.fl60: in al,0x60
loop .fl60
mov [0xfcff],byte 0 ; mouse buffer
mov [0xf400],byte 0 ; keyboard buffer
mov [0xf500],byte 0 ; button buffer
; mov [0xfb0a],dword 100*65536+100 ; mouse x/y
push eax
mov ax,[0x2f0000+0x900c]
shr ax,1
shl eax,16
mov ax,[0x2f0000+0x900A]
shr ax,1
mov [0xfb0a],eax
pop eax
mov byte [SB16_Status],0 ; Minazzi Paolo
mov [display_data-12],dword 1 ; tiled background
mov [0xfe88],dword 0x2C0000 ; address of button list
;!! IP 04.02.2005:
mov [next_usage_update], 100
mov byte [0xFFFF], 0 ; change task if possible
ret
;* mouse centered - start code- Mario79
mouse_centered:
push eax
mov eax,[0xFE00]
shr eax,1
mov [0xFB0A],ax
mov eax,[0xFE04]
shr eax,1
mov [0xFB0C],ax
pop eax
ret
;* mouse centered - end code- Mario79
align 4
sys_outport:
mov edi,ebx ; separate flag for read / write
and ebx,65535
mov ecx,[0x2d0000]
test ecx,ecx
jne sopl8
mov [esp+36],dword 1
ret
sopl8:
mov edx,[0x3010]
mov edx,[edx+0x4]
and ebx,65535
cld
sopl1:
mov esi,ecx
shl esi,4
add esi,0x2d0000
cmp edx,[esi+0]
jne sopl2
cmp ebx,[esi+4]
jb sopl2
cmp ebx,[esi+8]
jg sopl2
jmp sopl3
sopl2:
dec ecx
jnz sopl1
mov [esp+36],dword 1
ret
sopl3:
test edi,0x80000000 ; read ?
jnz sopl4
mov dx,bx ; write
out dx,al
mov [esp+36],dword 0
ret
sopl4:
mov dx,bx ; read
in al,dx
and eax,0xff
mov [esp+36],dword 0
mov [esp+24],eax
ret
align 4
sys_sb16:
cmp word [sb16],word 0
jnz sb16l1
mov [esp+36],dword 1
ret
sb16l1:
mov [esp+36],dword 0
cmp eax,1 ; set volume - main
jnz sb16l2
mov dx,word [sb16]
add dx,4
mov al,0x22
out dx,al
mov esi,1
call delay_ms
mov eax,ebx
inc edx
out dx,al
ret
sb16l2:
cmp eax,2 ; set volume - cd
jnz sb16l3
mov dx,word [sb16]
add dx,4
mov al,0x28
out dx,al
mov esi,1
call delay_ms
mov eax,ebx
add edx,1
out dx,al
ret
sb16l3:
mov [esp+36],dword 2
ret
align 4
sys_sb16II:
cmp word [sb16],word 0
jnz IIsb16l1
mov [esp+36],dword 1
ret
IIsb16l1:
cmp eax,1 ; set volume - main
jnz IIsb16l2
; L
mov dx,word [sb16]
add dx,4
mov al,0x30
out dx,al
mov eax,ebx
inc edx
out dx,al
; R
mov dx,word [sb16]
add dx,4
mov al,0x31
out dx,al
mov eax,ebx
inc edx
out dx,al
mov [esp+36],dword 0
ret
IIsb16l2:
cmp eax,2 ; set volume - cd
jnz IIsb16l3
; L
mov dx,word [sb16]
add dx,4
mov al,0x36
out dx,al
mov eax,ebx
inc edx
out dx,al
; R
mov dx,word [sb16]
add dx,4
mov al,0x37
out dx,al
mov eax,ebx
inc edx
out dx,al
mov [esp+36],dword 0
ret
IIsb16l3:
mov [esp+36],dword 2
ret
align 4
sys_wss:
cmp word [wss],word 0
jnz wssl1
mov [esp+36],dword 1
ret
wssl1:
cmp eax,1 ; set volume - main
jnz wssl2
mov [esp+36],dword 0
ret
wssl2:
cmp eax,2 ; set volume - cd
jnz wssl3
; L
mov dx,word [wss]
add dx,4
mov al,0x2
out dx,al
mov esi,1
call delay_ms
mov eax,ebx
inc edx
out dx,al
; R
mov dx,word [wss]
add dx,4
mov al,0x3
out dx,al
mov esi,1
call delay_ms
mov eax,ebx
inc edx
out dx,al
mov [esp+36],dword 0
ret
wssl3:
mov [esp+36],dword 2
ret
display_number:
; eax = print type, al=0 -> ebx is number
; al=1 -> ebx is pointer
; ah=0 -> display decimal
; ah=1 -> display hexadecimal
; ah=2 -> display binary
; eax bits 16-21 = number of digits to display (0-32)
; eax bits 22-31 = reserved
;
; ebx = number or pointer
; ecx = x shl 16 + y
; edx = color
cmp eax,0xffff ; length > 0 ?
jge cont_displ
ret
cont_displ:
cmp eax,60*0x10000 ; length <= 60 ?
jbe cont_displ2
ret
cont_displ2:
pushad
cmp al,1 ; ecx is a pointer ?
jne displnl1
mov edi,[0x3010]
mov edi,[edi+0x10]
mov ebx,[edi+ebx]
displnl1:
sub esp,64
cmp ah,0 ; DECIMAL
jne no_display_desnum
shr eax,16
and eax,0x2f
push eax
;mov edi,[0x3010]
;mov edi,[edi+0x10]
mov edi,esp
add edi,4+64
mov ecx,eax
mov eax,ebx
mov ebx,10
d_desnum:
xor edx,edx
div ebx
add dl,48
mov [edi],dl
dec edi
loop d_desnum
pop eax
call draw_num_text
add esp,64
popad
ret
no_display_desnum:
cmp ah,0x01 ; HEXADECIMAL
jne no_display_hexnum
shr eax,16
and eax,0x2f
push eax
;mov edi,[0x3010]
;mov edi,[edi+0x10]
mov edi,esp
add edi,4+64
mov ecx,eax
mov eax,ebx
mov ebx,16
d_hexnum:
xor edx,edx
div ebx
add edx,hexletters
mov dl,[edx]
mov [edi],dl
dec edi
loop d_hexnum
pop eax
call draw_num_text
add esp,64
popad
ret
no_display_hexnum:
cmp ah,0x02 ; BINARY
jne no_display_binnum
shr eax,16
and eax,0x2f
push eax
;mov edi,[0x3010]
;mov edi,[edi+0x10]
mov edi,esp
add edi,4+64
mov ecx,eax
mov eax,ebx
mov ebx,2
d_binnum:
xor edx,edx
div ebx
add dl,48
mov [edi],dl
dec edi
loop d_binnum
pop eax
call draw_num_text
add esp,64
popad
ret
no_display_binnum:
add esp,64
popad
ret
draw_num_text:
; dtext
;
; eax x & y
; ebx color
; ecx start of text
; edx length
; edi 1 force
mov edx,eax
mov ecx,65
sub ecx,eax
add ecx,esp
add ecx,4
mov eax,[esp+64+32-8+4]
mov ebx,[esp+64+32-12+4]
push edx ; add window start x & y
push ebx
mov edx,[0x3010]
mov ebx,[edx-twdw]
shl ebx,16
add ebx,[edx-twdw+4]
add eax,ebx
pop ebx
pop edx
mov edi,0
call dtext
ret
read_string:
; eax read_area
; ebx color of letter
; ecx color of background
; edx number of letters to read
; esi [x start]*65536 + [y_start]
ret
align 4
sys_setup:
; 1=roland mpu midi base , base io address
; 2=keyboard 1, base kaybap 2, shift keymap, 9 country 1eng 2fi 3ger 4rus
; 3=cd base 1, pri.master 2, pri slave 3 sec master, 4 sec slave
; 4=sb16 base , base io address
; 5=system language, 1eng 2fi 3ger 4rus
; 6=wss base , base io address
; 7=hd base 1, pri.master 2, pri slave 3 sec master, 4 sec slave
; 8=fat32 partition in hd
; 9
; 10 = sound dma channel
; 11 = enable lba read
; 12 = enable pci access
mov [esp+36],dword 0
cmp eax,1 ; MIDI
jnz nsyse1
cmp ebx,0x100
jb nsyse1
mov edx,65535
cmp edx,ebx
jb nsyse1
mov [midi_base],bx
mov word [mididp],bx
inc bx
mov word [midisp],bx
ret
midi_base dw 0
nsyse1:
cmp eax,2 ; KEYBOARD
jnz nsyse2
cmp ebx,1
jnz kbnobase
mov edi,[0x3010]
add ecx,[edi+0x10]
mov eax,ecx
mov ebx,keymap
mov ecx,128
call memmove
ret
kbnobase:
cmp ebx,2
jnz kbnoshift
mov edi,[0x3010]
add ecx,[edi+0x10]
mov eax,ecx
mov ebx,keymap_shift
mov ecx,128
call memmove
ret
kbnoshift:
cmp ebx,3
jne kbnoalt
mov edi,[0x3010]
add ecx,[edi+0x10]
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
mov [cd_base],bl
cmp ebx,1
jnz noprma
mov [cdbase],0x1f0
mov [cdid],0xa0
noprma:
cmp ebx,2
jnz noprsl
mov [cdbase],0x1f0
mov [cdid],0xb0
noprsl:
cmp ebx,3
jnz nosema
mov [cdbase],0x170
mov [cdid],0xa0
nosema:
cmp ebx,4
jnz nosesl
mov [cdbase],0x170
mov [cdid],0xb0
nosesl:
ret
cd_base db 0
nsyse3:
cmp eax,4 ; SB
jnz nsyse4
cmp ebx,0x100
jb nsyse4
mov edx,65535
cmp edx,ebx
jb nsyse4
mov word [sb16],bx
ret
nsyse4:
cmp eax,5 ; SYSTEM LANGUAGE
jnz nsyse5
mov [syslang],ebx
ret
nsyse5:
cmp eax,6 ; WSS
jnz nsyse6
cmp ebx,0x100
jb nsyse6
mov [wss],ebx
ret
wss_temp dd 0
nsyse6:
cmp eax,7 ; HD BASE
jne nsyse7
mov [hd_base],bl
cmp ebx,1
jnz noprmahd
mov [hdbase],0x1f0
mov [hdid],0x0
mov [hdpos],1
; call set_FAT32_variables
noprmahd:
cmp ebx,2
jnz noprslhd
mov [hdbase],0x1f0
mov [hdid],0x10
mov [hdpos],2
; call set_FAT32_variables
noprslhd:
cmp ebx,3
jnz nosemahd
mov [hdbase],0x170
mov [hdid],0x0
mov [hdpos],3
; call set_FAT32_variables
nosemahd:
cmp ebx,4
jnz noseslhd
mov [hdbase],0x170
mov [hdid],0x10
mov [hdpos],4
; call set_FAT32_variables
noseslhd:
mov [0xfe10],dword 0
call reserve_hd1
call clear_hd_cache
mov [hd1_status],0 ; free
ret
hd_base db 0
nsyse7:
cmp eax,8 ; HD PARTITION
jne nsyse8
mov [fat32part],ebx
; call set_FAT32_variables
call reserve_hd1
call clear_hd_cache
pusha
call choice_necessity_partition_1
popa
mov [hd1_status],0 ; free
ret
nsyse8:
cmp eax,10 ; SOUND DMA CHANNEL
jne no_set_sound_dma
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'
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
mov [esp+36],dword -1
ret
align 4
sys_getsetup:
; 1=roland mpu midi base , base io address
; 2=keyboard 1, base kaybap 2, shift keymap, 9 country 1eng 2fi 3ger 4rus
; 3=cd base 1, pri.master 2, pri slave 3 sec master, 4 sec slave
; 4=sb16 base , base io address
; 5=system language, 1eng 2fi 3ger 4rus
; 6=wss base
; 7=hd base 1, pri.master 2, pri slave 3 sec master, 4 sec slave
; 8=fat32 partition in hd
; 9=get hs timer tic
cmp eax,1
jne ngsyse1
movzx eax,[midi_base]
mov [esp+36],eax
ret
ngsyse1:
cmp eax,2
jne ngsyse2
cmp ebx,1
jnz kbnobaseret
mov edi,[0x3010]
add ecx,[edi+0x10]
mov ebx,ecx
mov eax,keymap
mov ecx,128
call memmove
ret
kbnobaseret:
cmp ebx,2
jnz kbnoshiftret
mov edi,[0x3010]
add ecx,[edi+0x10]
mov ebx,ecx
mov eax,keymap_shift
mov ecx,128
call memmove
ret
kbnoshiftret:
cmp ebx,3
jne kbnoaltret
mov edi,[0x3010]
add ecx,[edi+0x10]
mov ebx,ecx
mov eax,keymap_alt
mov ecx,128
call memmove
ret
kbnoaltret:
cmp ebx,9
jnz ngsyse2
movzx eax,word [keyboard]
mov [esp+36],eax
ret
ngsyse2:
cmp eax,3
jnz ngsyse3
movzx eax,[cd_base]
mov [esp+36],eax
ret
ngsyse3:
cmp eax,4
jne ngsyse4
mov eax,[sb16]
mov [esp+36],eax
ret
ngsyse4:
cmp eax,5
jnz ngsyse5
mov eax,[syslang]
mov [esp+36],eax
ret
ngsyse5:
cmp eax,6
jnz ngsyse6
mov eax,[wss]
mov [esp+36],eax
ret
ngsyse6:
cmp eax,7
jnz ngsyse7
movzx eax,[hd_base]
mov [esp+36],eax
ret
ngsyse7:
cmp eax,8
jnz ngsyse8
mov eax,[fat32part]
mov [esp+36],eax
ret
ngsyse8:
cmp eax,9
jne ngsyse9
mov eax,[timer_ticks] ;[0xfdf0]
mov [esp+36],eax
ret
ngsyse9:
cmp eax,10
jnz ngsyse10
mov eax,[sound_dma]
mov [esp+36],eax
ret
ngsyse10:
cmp eax,11
jnz ngsyse11
mov eax,[lba_read_enabled]
mov [esp+36],eax
ret
ngsyse11:
cmp eax,12
jnz ngsyse12
mov eax,[pci_access_enabled]
mov [esp+36],eax
ret
ngsyse12:
mov [esp+36],dword 1
ret
align 4
readmousepos:
; eax=0 screen relative
; eax=1 window relative
; eax=2 buttons pressed
test eax,eax
jnz nosr
mov eax,[0xfb0a]
shl eax,16
mov ax,[0xfb0c]
mov [esp+36],eax
ret
nosr:
cmp eax,1
jnz nowr
mov eax,[0xfb0a]
shl eax,16
mov ax,[0xfb0c]
mov esi,[0x3010]
sub esi,twdw
mov bx,[esi]
shl ebx,16
mov bx,[esi+4]
sub eax,ebx
mov [esp+36],eax
ret
nowr:
cmp eax,2
jnz nomb
movzx eax,byte [0xfb40]
nomb:
mov [esp+36],eax
ret
is_input:
push edx
mov dx,word [midisp]
in al,dx
and al,0x80
pop edx
ret
is_output:
push edx
mov dx,word [midisp]
in al,dx
and al,0x40
pop edx
ret
get_mpu_in:
push edx
mov dx,word [mididp]
in al,dx
pop edx
ret
put_mpu_out:
push edx
mov dx,word [mididp]
out dx,al
pop edx
ret
setuart:
su1:
call is_output
cmp al,0
jnz su1
mov dx,word [midisp]
mov al,0xff
out dx,al
su2:
mov dx,word [midisp]
mov al,0xff
out dx,al
call is_input
cmp al,0
jnz su2
call get_mpu_in
cmp al,0xfe
jnz su2
su3:
call is_output
cmp al,0
jnz su3
mov dx,word [midisp]
mov al,0x3f
out dx,al
ret
align 4
sys_midi:
cmp [mididp],0
jnz sm0
mov [esp+36],dword 1
ret
sm0:
cmp eax,1
mov [esp+36],dword 0
jnz smn1
call setuart
ret
smn1:
cmp eax,2
jnz smn2
sm10:
call get_mpu_in
call is_output
test al,al
jnz sm10
mov al,bl
call put_mpu_out
ret
smn2:
ret
detect_devices:
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
include 'detect/commouse.inc'
;include 'detect/dev_fd.inc'
;include 'detect/dev_hdcd.inc'
;include 'detect/sear_par.inc'
;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
ret
sys_end:
mov eax,[0x3010]
add eax,0xa
mov [eax],byte 3 ; terminate this program
waitterm: ; wait here for termination
mov eax,5
call delay_hs
jmp waitterm
sys_system:
cmp eax,1 ; BOOT
jnz nosystemboot
mov [0x2f0000+0x9030],byte 0
for_shutdown_parameter:
mov eax,[0x3004]
add eax,2
mov [shutdown_processes],eax
mov [0xFF00],al
xor eax, eax
ret
uglobal
shutdown_processes: dd 0x0
endg
nosystemboot:
cmp eax,2 ; TERMINATE
jnz noprocessterminate
cmp ebx,2
jb noprocessterminate
mov edx,[0x3004]
cmp ebx,edx
jg noprocessterminate
mov eax,[0x3004]
shl ebx,5
mov edx,[ebx+0x3000+4]
add ebx,0x3000+0xa
;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:
ret
noprocessterminate:
cmp eax,3 ; ACTIVATE WINDOW
jnz nowindowactivate
cmp ebx,2
jb nowindowactivate
cmp ebx,[0x3004]
ja nowindowactivate
; edi = position at window_data+
mov edi, ebx ; edi = process number
;shl ebx, 1
;add ebx, 0xc000
;mov esi, [ebx] ; esi = window stack value
;and esi, 0xffff ; word
movzx esi, word [0xC000 + ebx*2]
mov edx, [0x3004] ; edx = number of processes
cmp esi, edx
jz nowindowactivate ; continue if window_stack_value != number_of_processes
; i.e. if window is not already active
;* start code - get active process (1) - Mario79
mov [window_minimize],2
mov [active_process],edi
;* end code - get active process (1) - Mario79
mov [0xff01],edi ; activate
xor eax, eax
ret
nowindowactivate:
cmp eax,4 ; GET IDLETIME
jnz nogetidletime
mov eax,[idleusesec]
ret
nogetidletime:
cmp eax,5 ; GET TSC/SEC
jnz nogettscsec
mov eax,[0xf600]
ret
nogettscsec:
; SAVE ramdisk to /hd/1/menuet.img
;!!!!!!!!!!!!!!!!!!!!!!!!
include 'blkdev/rdsave.inc'
;!!!!!!!!!!!!!!!!!!!!!!!!
;* start code - get active process (2) - Mario79
cmp eax,7
jnz nogetactiveprocess
mov eax,[active_process]
ret
nogetactiveprocess:
cmp eax,8
jnz nosoundflag
cmp ebx,1
jne nogetsoundflag
movzx eax,byte [sound_flag] ; get sound_flag
ret
nogetsoundflag:
cmp ebx,2
jnz nosoundflag
inc byte [sound_flag] ; set sound_flag
and byte [sound_flag],1 ;
ret
nosoundflag:
cmp eax,9 ; system shutdown with param
jnz noshutdownsystem
cmp ebx,1
jl exit_for_anyone
cmp ebx,4
jg exit_for_anyone
mov [0x2f0000+0x9030],bl
jmp for_shutdown_parameter
noshutdownsystem:
cmp eax,10 ; minimize window
jnz nominimizewindow
mov [window_minimize],1
exit_for_anyone:
ret
nominimizewindow:
cmp eax,11 ; get disk info table
jnz nogetdiskinfo
cmp ebx,1
jnz full_table
small_table:
call for_all_tables
mov cx,10
cld
rep movsb
ret
for_all_tables:
mov edi,[3010h]
mov edi,[edi+10h]
add edi,ecx
mov esi,0x40000
xor ecx,ecx
ret
full_table:
cmp ebx,2
jnz exit_for_anyone
call for_all_tables
mov cx,16384
cld
rep movsd
ret
nogetdiskinfo:
cmp eax,12 ; get all key pressed with ALT
jnz nogetkey
mov eax,[last_key_press]
mov al,[keyboard_mode_sys]
mov [esp+36],eax
mov [last_key_press],0
.finish:
ret
nogetkey:
cmp eax,13 ; get kernel ID and version
jnz nogetkernel_id
mov edi,[3010h]
mov edi,[edi+10h]
add edi,ebx
mov esi,version_inf
mov ecx,version_end-version_inf
cld
rep movsb
ret
nogetkernel_id:
cmp eax,14 ; sys wait retrace
jnz nosys_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
nosys_wait_retrace:
cmp eax,15 ; mouse centered
jnz no_mouse_centered
call mouse_centered
mov [esp+36],dword 0
ret
no_mouse_centered:
;* end code - get active process (2) - Mario79
ret
window_minimize db 0
sound_flag db 0
last_key_press dd 0
keyboard_mode_sys db 0
iglobal
version_inf:
db 0,5,1,0 ; version 0.5.1.0
db UID_KOLIBRI
db 'Kolibri',0
version_end:
endg
UID_NONE=0
UID_MENUETOS=1 ;official
UID_KOLIBRI=2 ;russian
main_loop_sys_getkey:
cmp [0xf400],byte 0
je .finish
movzx eax,byte [0xf401]
shl eax,8
mov [last_key_press],eax
.finish:
ret
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
uglobal
; bgrchanged dd 0x0
endg
sys_background:
cmp eax,1 ; BACKGROUND SIZE
jnz nosb1
cmp ebx,0
je sbgrr
cmp ecx,0
je sbgrr
mov [display_data-8],ebx
mov [display_data-4],ecx
; mov [bgrchanged],1
sbgrr:
ret
nosb1:
cmp eax,2 ; SET PIXEL
jnz nosb2
mov edx,0x160000-16
cmp edx,ebx
jbe nosb2
mov edx,[ebx]
and edx,0xFF000000 ;255*256*256*256
and ecx,0x00FFFFFF ;255*256*256+255*256+255
add edx,ecx
mov [ebx+0x300000],edx
; mov [bgrchanged],1
ret
nosb2:
cmp eax,3 ; DRAW BACKGROUND
jnz nosb3
draw_background_temp:
; cmp [bgrchanged],1 ;0
; je nosb31
;draw_background_temp:
; mov [bgrchanged],1 ;0
mov [0xfff0],byte 1
nosb31:
ret
nosb3:
cmp eax,4 ; TILED / STRETCHED
jnz nosb4
cmp ebx,[display_data-12]
je nosb41
mov [display_data-12],ebx
; mov [bgrchanged],1
nosb41:
ret
nosb4:
cmp eax,5 ; BLOCK MOVE TO BGR
jnz nosb5
; bughere
mov edi, [0x3010]
add ebx, [edi+0x10]
; mov esi, ebx
; mov edi, ecx
mov eax, ebx
mov ebx, ecx
add ecx, edx
cmp ecx, 0x160000-16
ja .fin
; add edi, 0x300000
add ebx, 0x300000
mov ecx, edx
cmp ecx, 0x160000-16
ja .fin
; mov [bgrchanged],1
; cld
; rep movsb
call memmove
.fin:
ret
nosb5:
ret
align 4
sys_getbackground:
cmp eax,1 ; SIZE
jnz nogb1
mov eax,[display_data-8]
shl eax,16
mov ax,[display_data-4]
mov [esp+36],eax
ret
nogb1:
cmp eax,2 ; PIXEL
jnz nogb2
mov edx,0x160000-16
cmp edx,ebx
jbe nogb2
mov eax, [ebx+0x300000]
and eax, 0xFFFFFF
mov [esp+36],eax
ret
nogb2:
cmp eax,4 ; TILED / STRETCHED
jnz nogb4
mov eax,[display_data-12]
nogb4:
mov [esp+36],eax
ret
align 4
sys_getkey:
mov [esp+36],dword 1
mov ebx, [0x3000] ; TOP OF WINDOW STACK
movzx ecx,word [0xC000 + ebx * 2]
mov edx,[0x3004]
cmp ecx,edx
jne .finish
cmp [0xf400],byte 0
je .finish
movzx eax,byte [0xf401]
shl eax,8
push eax
dec byte [0xf400]
and byte [0xf400],127
movzx ecx,byte [0xf400]
add ecx,2
; mov esi,0xf402
; mov edi,0xf401
; cld
; rep movsb
mov eax, 0xF402
mov ebx, 0xF401
call memmove
pop eax
mov [last_key_press],eax
mov eax,[kb_state]
and al,110000b
cmp al,100000b
je .yes_win_key
cmp al,10000b
je .yes_win_key
mov eax,[last_key_press]
jmp .no_win_key
; cmp ah,232
; je .yes_win_key
; cmp ah,233
; jne .no_win_key
.yes_win_key:
mov eax,1
.no_win_key:
mov [esp+36],eax
.finish:
ret
align 4
sys_getbutton:
mov ebx, [0x3000] ; TOP OF WINDOW STACK
mov [esp+36],dword 1
movzx ecx, word [0xC000 + ebx * 2]
mov edx, [0x3004] ; less than 256 processes
cmp ecx,edx
jne .exit
movzx eax,byte [0xf500]
test eax,eax
jz .exit
mov eax,[0xf501]
shl eax,8
mov [0xf500],byte 0
mov [esp+36],eax
.exit:
ret
align 4
sys_cpuusage:
; RETURN:
;
; +00 dword process cpu usage
; +04 word position in windowing stack
; +06 word windowing stack value at current position (cpu nro)
; +10 12 bytes name
; +22 dword start in mem
; +26 dword used mem
; +30 dword PID , process idenfification number
;
mov edi,[0x3010] ; eax = return area
add edi,0x10
add eax,[edi]
cmp ebx,-1 ; who am I ?
jne no_who_am_i
mov ebx,[0x3000]
no_who_am_i:
push eax ; return area
push ebx ; process number
push ebx
push ebx
push eax
; return memory usage
xor edx,edx
mov eax,0x20
mul ebx
add eax,0x3000+0x1c
mov ebx,eax
pop eax
mov ecx,[ebx]
mov [eax],ecx
pop ebx
; mov ebx,[esp]
; shl ebx,1
; add ebx,0xc000
mov cx, [0xC000 + ebx * 2]
mov [eax+4],cx
; mov ebx,[esp]
; shl ebx,1
; add ebx,0xc400
mov cx, [0xC400 + ebx * 2]
mov [eax+6],cx
; pop ebx
push eax
mov eax,ebx
shl eax,8
add eax,0x80000
pop ebx
add ebx,10
mov ecx,11
call memmove
; memory usage
xor eax,eax
mov edx,0x100000*16
pop ecx ; get gdt of tss
cmp ecx,1
je os_mem
shl ecx,8
mov edx,[0x80000+ecx+0x8c]
mov eax,std_application_base_address
;add ecx,0x80000+0x88
;mov ecx,[ecx]
; shl ecx,3
; eax run base -> edx used memory
; mov al,[ecx+gdts+ app_code-3 +4] ; base 23:16
; mov ah,[ecx+gdts+ app_code-3 +7] ; base 31:24
; shl eax,16
; mov ax,[ecx+gdts+ app_code-3 +2] ; base 0:15
; movzx edx,word [ecx+gdts+ app_code-3 +0]
; shl edx,12
os_mem:
dec edx
mov [ebx+12],eax
mov [ebx+16],edx
; PID (+30)
mov eax,[esp]
shl eax,5
add eax,0x3000+0x4
mov eax,[eax]
mov [ebx+20],eax
; window position and size
mov esi,[esp]
shl esi,5
add esi,window_data
mov edi,[esp+4]
add edi,34
mov ecx,4*4
cld
rep movsb
; Process state (+50)
mov eax,[esp]
shl eax,5
add eax,0x3000+0xa
mov eax,[eax]
mov [ebx+40],ax
pop ebx
pop eax
; return number of processes
mov eax,[0x3004]
mov [esp+36],eax
ret
align 4
sys_clock:
cli
; Mikhail Lisovin xx Jan 2005
@@: mov al, 10
out 0x70, al
in al, 0x71
test al, al
jns @f
mov esi, 1
call delay_ms
jmp @b
@@:
; end Lisovin's fix
xor al,al ; seconds
out 0x70,al
in al,0x71
movzx ecx,al
mov al,02 ; minutes
shl ecx,16
out 0x70,al
in al,0x71
movzx edx,al
mov al,04 ; hours
shl edx,8
out 0x70,al
in al,0x71
add ecx,edx
movzx edx,al
add ecx,edx
sti
mov [esp+36],ecx
ret
align 4
sys_date:
cli
mov al,6 ; day of week
out 0x70,al
in al,0x71
mov ch,al
mov al,7 ; date
out 0x70,al
in al,0x71
mov cl,al
mov al,8 ; month
shl ecx,16
out 0x70,al
in al,0x71
mov ch,al
mov al,9 ; year
out 0x70,al
in al,0x71
mov cl,al
sti
mov [esp+36],ecx
ret
; redraw status
sys_redrawstat:
cmp eax,1
jne no_widgets_away
; buttons away
mov ecx,[0x3000]
sys_newba2:
mov edi,[0xfe88]
cmp [edi],dword 0 ; empty button list ?
je end_of_buttons_away
movzx ebx,word [edi]
inc ebx
mov eax,edi
sys_newba:
dec ebx
jz end_of_buttons_away
add eax,0x10
cmp cx,[eax]
jnz sys_newba
push eax ebx ecx
mov ecx,ebx
inc ecx
shl ecx,4
mov ebx,eax
add eax,0x10
call memmove
dec dword [edi]
pop ecx ebx eax
jmp sys_newba2
end_of_buttons_away:
ret
no_widgets_away:
cmp eax,2
jnz srl1
mov edx,[0x3010] ; return whole screen draw area for this app
add edx,draw_data-0x3000
mov [edx+0],dword 0
mov [edx+4],dword 0
mov eax,[0xfe00]
mov [edx+8],eax
mov eax,[0xfe04]
mov [edx+12],eax
mov edi,[0x3010]
sub edi,twdw
mov [edi+30],byte 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
call sys_set_window
call drawwindow_I
ret
nosyswI:
cmp edi,1 ; type II - only reserve area, no draw
jne nosyswII
call sys_set_window
call sys_window_mouse
ret
nosyswII:
cmp edi,2 ; type III - new style
jne nosyswIII
call sys_set_window
call drawwindow_III
ret
nosyswIII:
cmp edi,3 ; type IV - skinned window
jne nosyswIV
call sys_set_window
call drawwindow_IV
ret
nosyswIV:
ret
sys_set_window:
mov edi,[0x3000]
shl edi,5
add edi,window_data
; colors
mov [edi+16],ecx
mov [edi+20],edx
mov [edi+24],esi
; check flag (?)
cmp [edi+30],byte 1
jz newd
push eax
mov eax,[timer_ticks] ;[0xfdf0]
add eax,100
mov [new_window_starting],eax
pop eax
mov [edi+8],ax
mov [edi+12],bx
shr eax,16
shr ebx,16
mov [edi+00],ax
mov [edi+04],bx
call check_window_position
push ecx esi edi ; save for window fullscreen/resize
mov esi,edi
sub edi,window_data
shr edi,5
shl edi,8
add edi,0x80000+0x90
mov ecx,4
cld
rep movsd
pop edi esi ecx
push eax ebx ecx edx
;;; mov eax, 1
;;; call delay_hs
movzx eax, word [edi+00]
movzx ebx, word [edi+04]
movzx ecx, word [edi+8]
movzx edx, word [edi+12]
add ecx, eax
add edx, ebx
call calculatescreen
pop edx ecx ebx eax
mov [0xf400],byte 0 ; empty keyboard buffer
mov [0xf500],byte 0 ; empty button buffer
newd:
mov [edi+31],byte 0 ; no redraw
mov edx,edi
ret
sys_window_move:
cmp [window_move_pr],0
je mwrl1
mov [esp+36],dword 1 ; return queue error
ret
mwrl1:
mov edi,[0x3000] ; requestor process base
mov [window_move_pr],edi
mov [window_move_eax],eax
mov [window_move_ebx],ebx
mov [window_move_ecx],ecx
mov [window_move_edx],edx
mov [esp+36],dword 0 ; return success
ret
type_background_1:
cmp [0xfff0],byte 0 ; background update ?
jz temp_nobackgr
mov [0xfff0],byte 2
call change_task
mov [draw_data+32+0],dword 0
mov [draw_data+32+4],dword 0
mov eax,[0xfe00]
mov ebx,[0xfe04]
mov [draw_data+32+8],eax
mov [draw_data+32+12],ebx
call drawbackground
mov [0xfff0],byte 0
mov [0xfff4],byte 0
temp_nobackgr:
ret
uglobal
window_move_pr dd 0x0
window_move_eax dd 0x0
window_move_ebx dd 0x0
window_move_ecx dd 0x0
window_move_edx dd 0x0
endg
;ok - 100% work
;nt - not tested
;---------------------------------------------------------------------------------------------
;eax
;0 - task switch counter. Ret switch counter in eax. Block. ok.
;1 - change task. Ret nothing. Block. ok.
;2 - performance control
; ebx
; 0 - enable or disable (inversion) PCE flag on CR4 for rdmpc in user mode.
; returned new cr4 in eax. Ret cr4 in eax. Block. ok.
; 1 - is cache enabled. Ret cr0 in eax if enabled else zero in eax. Block. ok.
; 2 - enable cache. Ret 1 in eax. Ret nothing. Block. ok.
; 3 - disable cache. Ret 0 in eax. Ret nothing. Block. ok.
;eax
;3 - rdmsr. Counter in edx. (edx:eax) [esi:edi, edx] => [edx:esi, ecx]. Ret in ebx:eax. Block. ok.
;4 - wrmsr. Counter in edx. (edx:eax) [esi:edi, edx] => [edx:esi, ecx]. Ret in ebx:eax. Block. ok.
;---------------------------------------------------------------------------------------------
sys_sheduler: ;noname & halyavin
cmp eax,0
je shed_counter
cmp eax,2
je perf_control
cmp eax,3
je rdmsr_instr
cmp eax,4
je wrmsr_instr
cmp eax,1
jne not_supported
call change_task ;delay,0
ret
shed_counter:
mov eax,[context_counter]
mov [esp+36],eax
not_supported:
ret
perf_control:
inc eax ;now eax=3
cmp ebx,eax
je cache_disable
dec eax
cmp ebx,eax
je cache_enable
dec eax
cmp ebx,eax
je is_cache_enabled
dec eax
cmp ebx,eax
je modify_pce
ret
rdmsr_instr:
;now counter in ecx
;(edx:eax) esi:edi => edx:esi
mov eax,esi
rdmsr
mov [esp+36],eax
mov [esp+24],edx ;ret in ebx?
ret
wrmsr_instr:
;now counter in ecx
;(edx:eax) esi:edi => edx:esi
mov eax,esi
wrmsr
mov [esp+36],eax
mov [esp+24],edx ;ret in ebx?
ret
cache_disable:
mov eax,cr0
or eax,01100000000000000000000000000000b
mov cr0,eax
wbinvd ;set MESI
ret
cache_enable:
mov eax,cr0
and eax,10011111111111111111111111111111b
mov cr0,eax
ret
is_cache_enabled:
mov eax,cr0
mov ebx,eax
and eax,01100000000000000000000000000000b
jz cache_disabled
mov [esp+36],ebx
cache_disabled:
mov dword [esp+36],eax ;0
ret
modify_pce:
mov eax,cr4
; mov ebx,0
; or bx,100000000b ;pce
; xor eax,ebx ;invert pce
btr eax,8 ;pce=cr4[8]
mov cr4,eax
mov [esp+36],eax
ret
;---------------------------------------------------------------------------------------------
; check pixel limits
;cplimit:
; push edi
; cmp byte [0xe000], 1 ; Multitasking enabled?
; jnz .ret0
; mov edi,[0x3010]
; add edi, draw_data-0x3000
; mov ecx, 1
; cmp [edi+0], eax ; xs
; ja .ret1
; cmp [edi+4], ebx ; ys
; ja .ret1
; cmp eax, [edi+8] ; xe
; ja .ret1
; cmp ebx, [edi+12] ; ye
; ja .ret1
;.ret0:
; xor ecx, ecx
;.ret1:
; pop edi
; ret
; check if pixel is allowed to be drawn
checkpixel:
push eax
push ebx
push edx
; mov ecx,[0x3000] ; process count
; shl ecx, 6 ; *64
; add ecx,0xc000 ; +window_stack
; mov dx,word [ecx] ; window_stack_value
; cmp dx, word [0x3004] ; is this window active right now?!
; jz .ret0
; call cplimit
; test ecx, ecx
; jnz .ret1
mov edx,[0xfe00] ; screen x size
inc edx
imul edx, ebx
mov dl, [eax+edx+display_data] ; lea eax, [...]
;;; mov dl,[eax]
mov eax,[0x3000]
shl eax,5
add eax,0x3000+0xe
mov ecx, 1
cmp byte [eax], dl
jnz .ret1
.ret0:
xor ecx, ecx
.ret1:
pop edx
pop ebx
pop eax
ret
uglobal
mouse_active db 0
endg
iglobal
cpustring db 'CPU '
endg
align 4
; check misc
checkmisc:
cmp [ctrl_alt_del], 1
jne nocpustart
mov eax, cpustring
call start_application_fl
mov [ctrl_alt_del], 0
nocpustart:
cmp [mouse_active], 1
jne mouse_not_active
mov [mouse_active], 0
xor edi, edi
mov ecx, [0x3004]
set_mouse_event:
add edi, 256
or [edi+0x80000+0xA8], dword 00100000b
loop set_mouse_event
mouse_not_active:
cmp [0xfff0],byte 0 ; background update ?
jz nobackgr
mov [0xfff0],byte 2
call change_task
mov [draw_data+32+0],dword 0
mov [draw_data+32+4],dword 0
mov eax,[0xfe00]
mov ebx,[0xfe04]
mov [draw_data+32+8],eax
mov [draw_data+32+12],ebx
call drawbackground
mov [0xfff0],byte 0
mov [0xfff4],byte 0
nobackgr:
; system shutdown request
cmp [0xFF00],byte 0
je noshutdown
mov edx,[shutdown_processes]
sub dl,2
cmp [0xff00],dl
jne no_mark_system_shutdown
mov edx,0x3040
movzx ecx,byte [0xff00]
add ecx,5
markz:
mov [edx+0xa],byte 3
add edx,0x20
loop markz
no_mark_system_shutdown:
call [disable_mouse]
dec byte [0xff00]
cmp [0xff00],byte 0
je system_shutdown
noshutdown:
mov eax,[0x3004] ; termination
mov ebx,0x3020+0xa
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+0]
mov ebx,[edi+4]
mov ecx,[edi+8]
mov edx,[edi+12]
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+0]
mov ebx,[edi+4]
mov ecx,[edi+8]
mov edx,[edi+12]
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+0],ebx
mov ebx,[dly]
mov [eax+4],ebx
mov ebx,[dlxe]
mov [eax+8],ebx
mov ebx,[dlye]
mov [eax+12],ebx
sub eax,draw_data-window_data
cmp ecx,1
jne nobgrd
cmp esi,1
je newdw8
call drawbackground
newdw8:
nobgrd:
mov [eax+31],byte 1 ; mark as redraw
ricino:
not_this_task:
pop ecx
cmp ecx,[0x3004]
jle newdw2
; jg newdw3
; jmp newdw2
; newdw3:
pop eax
popad
ret
; check mouse
;
;
; FB00 -> FB0F mouse memory 00 chunk count - FB0A-B x - FB0C-D y
; FB10 -> FB17 mouse color mem
; FB21 x move
; FB22 y move
; FB30 color temp
; FB28 high bits temp
; FB4A -> FB4D FB4A-B x-under - FB4C-D y-under
; FC00 -> FCFE com1/ps2 buffer
; FCFF com1/ps2 buffer count starting from FC00
uglobal
mousecount dd 0x0
mousedata dd 0x0
endg
check_mouse_data:
pushad
cmp [0xF604],byte 1
jne no_ps2_mouse
mov [mousecount],dword 0x2e0000+12*4096
mov [mousedata],dword 0x2e0000+12*4096+0x10
jmp uusicheckmouse
no_ps2_mouse:
cmp [0xF604],byte 2
jne no_com1_mouse
mov [mousecount],dword 0x2e0000+4*4096
mov [mousedata],dword 0x2e0000+4*4096+0x10
jmp uusicheckmouse
no_com1_mouse:
mov [mousecount],dword 0x2e0000+3*4096
mov [mousedata],dword 0x2e0000+3*4096+0x10
uusicheckmouse:
mov ebx,[mousecount] ; anything at buffer for mouse
cmp dword [ebx], 0 ; !!!
jz checkmouseret
; first byte of comX or ps2 ?
cmp [0xF604],byte 1
je ps2mousefirst
; ******************************************
; *********** COMX mouse driver ************
; ******************************************
com1mousefirst:
mov edi,[mousedata]
mov dl,byte [edi] ; first com1 ?
test dl,64
jz @f
mov [0xfb00],byte 0 ; zero mouse block count
@@:
xor ebx,ebx
mov bl,[0xfb00]
inc bl
mov [0xfb00],bl
mov eax,0xfb00
add eax,ebx
mov edi,[mousedata]
mov dl,byte [edi]
mov [eax],byte dl
cmp bl,3 ; three ?
jnz decm
; buttons
;* change right and left button by places - start code - Mario79
mov al,[0xfb01]
mov ah,al
shr al,3
and al,2
shr ah,5
and ah,1
add al,ah
;* change right and left button by places - end code - Mario79
mov [0xfb40],al
; com1 mouse
; x
mov dl,[0xfb01] ; x high bits
movzx eax,dl
and al,3
shl al,6
mov dl,byte[0xfb02] ; x low bits
add al,dl
mov [0xfb21],byte al
movzx ebx,word[0xfb0a]
mov al,byte [0xfb01] ; + or - ?
test al,2
jz x_add
x_sub: ; x-
sub bx,255
sub bx,255
x_add: ; x+
movzx eax,byte [0xfb21]
add bx,ax
add bx,ax
push ebx
mov [0xfb00],byte 0
; y
my_event:
mov dl,[0xfb01] ; y high bits
movzx eax,dl
and al,12
shl al,4
mov dl,byte[0xfb03] ; y low bits
add al,dl
mov [0xfb22],byte al
movzx ebx,word[0xfb0c]
mov al,byte [0xfb01] ; + or - ?
test al,8
je y_add
y_sub: ; y-
sub bx,255
sub bx,255
y_add: ; y+
movzx eax,byte [0xfb22]
add bx,ax
add bx,ax
push ebx
mov [0xfb00],byte 0
jmp mdraw
; end of com1 mouse
; ******************************************
; ******** PS2 MOUSE DRIVER **************
; ******************************************
ps2mousefirst:
movzx edx,byte [0x2E0000+4096*12+0x10] ; first ps2 ?
cmp edx,40
jne @f
mov [0xfb00],byte 0 ; zero mouse block count
@@:
movzx ebx,byte [0xfb00]
add ebx,1
mov [0xfb00],bl
mov eax,0xfb00
add eax,ebx
mov dl,byte [0x2E0000+4096*12+0x10]
mov [eax],byte dl
cmp bl,3 ; full packet of three bytes ?
jnz decm
; jz ps2mouse
; jmp decm
; ps2mouse:
mov [0xfb00],byte 0 ; zero mouse block count
; buttons
movzx eax,byte [0xfb01]
and eax,3
mov [0xfb40],al
; x
movzx eax,word [0xfb0a]
movzx edx,byte [0xfb02]
cmp edx,128
jb ps2xp
shl edx,1
add eax,edx
cmp eax,512
jge ps2xsok
xor eax, eax
jmp ps2xready
ps2xsok:
sub eax,512
jmp ps2xready
ps2xp:
shl edx,1
add eax,edx
jmp ps2xready
ps2xready:
push eax
; y
movzx eax,word [0xfb0c]
movzx edx,byte [0xfb03]
cmp edx,128
jb ps2yp
add eax,512
shl edx,1
sub eax,edx
jmp ps2yready
ps2yp:
shl edx,1
cmp edx,eax
jb ps201
mov edx,eax
ps201:
sub eax,edx
jmp ps2yready
ps2yready:
push eax
;jmp mdraw
; end of ps2 mouse
; ****************************
; ***** CHECK FOR LIMITS *****
; ****************************
mdraw:
cmp [0xfb44],byte 0
jne mousedraw4
cmp [0xfb40],byte 0
je mousedraw4
mov [0xfff5],byte 1
mousedraw4:
pop ebx
pop eax
mov [mouse_active],1
; mov dx,0 ; smaller than zero
xor dx,dx
cmp bx,dx
jge mnb11
; mov bx,0
xor bx,bx
mnb11:
mov [0xfb0c],word bx
; mov dx,0
xor dx,dx
cmp ax,dx
jge mnb22
; mov ax,0
xor ax,ax
mnb22:
mov [0xfb0a],word ax
mov edx,[0xfe04] ; bigger than maximum
cmp ebx,edx
jb mnb1
mov bx,[0xfe04]
mnb1:
mov [0xfb0c],word bx
mov edx,[0xfe00]
cmp eax,edx
jb mnb2
mov ax,[0xfe00]
mnb2:
mov [0xfb0a],word ax
; **** NEXT DATA BYTE FROM MOUSE BUFFER ****
decm:
mov edi,[mousecount] ; decrease counter
dec dword [edi]
mov esi,[mousedata]
mov edi,esi
inc esi
; mov ecx,250
mov ecx,[mousecount]
mov ecx,[ecx]
cld
rep movsb
jmp uusicheckmouse
checkmouseret:
cmp [0xfb44],byte 0
jne cmret
cmp [0xfb40],byte 0
je cmret
mov [0xfff4],byte 0
mov [0xfff5],byte 0
cmret:
popad
ret
draw_mouse_under:
; return old picture
; cli
pushad
xor ecx,ecx
xor edx,edx
;cli ; !!!****
align 4
mres:
movzx eax,word [0xfb4a]
movzx ebx,word [0xfb4c]
add eax,ecx
add ebx,edx
push ecx
push edx
push eax
push ebx
mov eax,edx
shl eax,6
shl ecx,2
add eax,ecx
add eax,mouseunder
mov ecx,[eax]
pop ebx
pop eax
;;;push edi
mov edi,1 ;force
call [putpixel]
;;;pop edi
pop edx
pop ecx
inc ecx
cmp ecx, 16
jnz mres
xor ecx, ecx
inc edx
cmp edx, 24
jnz mres
;sti ; !!!****
popad
; sti
ret
save_draw_mouse:
; save & draw
; cli
mov [0xfb4a],ax
mov [0xfb4c],bx
push eax
push ebx
mov ecx,0
mov edx,0
;cli ; !!!****
drm:
push eax
push ebx
push ecx
push edx
; helloworld
push eax ebx ecx
add eax,ecx ; save picture under mouse
add ebx,edx
push ecx
call getpixel
mov [0xfb30],ecx
pop ecx
mov eax,edx
shl eax,6
shl ecx,2
add eax,ecx
add eax,mouseunder
mov ebx,[0xfb30]
mov [eax],ebx
pop ecx ebx eax
mov edi,edx ; y cycle
shl edi,4 ; *16 bytes per row
add edi,ecx ; x cycle
mov esi, edi
add edi, esi
add edi, esi ; *3
add edi,[0xf200] ; we have our str address
mov esi, edi
add esi, 16*24*3
push ecx
mov ecx, [0xfb30]
call combine_colors
mov [0xfb10], ecx
pop ecx
pop edx
pop ecx
pop ebx
pop eax
add eax,ecx ; we have x coord+cycle
add ebx,edx ; and y coord+cycle
push ecx edi
mov ecx, [0xfb10]
mov edi, 1
call [putpixel]
pop edi ecx
mnext:
mov ebx,[esp+0] ; pure y coord again
mov eax,[esp+4] ; and x
inc ecx ; +1 cycle
cmp ecx,16 ; if more than 16
jnz drm
xor ecx, ecx
inc edx
cmp edx,24
jnz drm
pop ebx
pop eax
; sti ; !!!****
ret
combine_colors:
; in
; ecx - color ( 00 RR GG BB )
; edi - ref to new color byte
; esi - ref to alpha byte
;
; out
; ecx - new color ( roughly (ecx*[esi]>>8)+([edi]*[esi]>>8) )
push eax
push ebx
push edx
push ecx
xor ecx, ecx
; byte 2
mov eax, 0xff
sub al, [esi+0]
mov ebx, [esp]
shr ebx, 16
and ebx, 0xff
mul ebx
shr eax, 8
add ecx, eax
; xor eax, eax
; xor ebx, ebx
; mov al, [edi+0]
; mov bl, [esi+0]
movzx eax, byte [edi+0]
movzx ebx, byte [esi+0]
mul ebx
shr eax, 8
add ecx, eax
shl ecx, 8
; byte 1
mov eax, 0xff
sub al, [esi+1]
mov ebx, [esp]
shr ebx, 8
and ebx, 0xff
mul ebx
shr eax, 8
add ecx, eax
; xor eax, eax
; xor ebx, ebx
; mov al, [edi+1]
; mov bl, [esi+1]
movzx eax, byte [edi+1]
movzx ebx, byte [esi+1]
mul ebx
shr eax, 8
add ecx, eax
shl ecx, 8
; byte 2
mov eax, 0xff
sub al, [esi+2]
mov ebx, [esp]
and ebx, 0xff
mul ebx
shr eax, 8
add ecx, eax
; xor eax, eax
; xor ebx, ebx
; mov al, [edi+2]
; mov bl, [esi+2]
movzx eax, byte [edi+2]
movzx ebx, byte [esi+2]
mul ebx
shr eax, 8
add ecx, eax
pop eax
pop edx
pop ebx
pop eax
ret
__sys_disable_mouse:
pushad
cmp [0x3000],dword 1
je disable_m
mov edx,[0x3000]
shl edx,5
add edx,window_data
movzx eax, word [0xfb0a]
movzx ebx, word [0xfb0c]
mov ecx,[0xfe00]
inc ecx
imul ecx,ebx
add ecx,eax
add ecx, display_data
movzx eax, byte [edx+twdw+0xe]
movzx ebx, byte [ecx]
cmp eax,ebx
je yes_mouse_disable
movzx ebx, byte [ecx+16]
cmp eax,ebx
je yes_mouse_disable
mov ebx,[0xfe00]
inc ebx
imul ebx,10
add ecx,ebx
movzx ebx, byte [ecx]
cmp eax,ebx
je yes_mouse_disable
mov ebx,[0xfe00]
inc ebx
imul ebx,10
add ecx,ebx
movzx ebx, byte [ecx]
cmp eax,ebx
je yes_mouse_disable
movzx ebx, byte [ecx+16]
cmp eax,ebx
je yes_mouse_disable
jmp no_mouse_disable
yes_mouse_disable:
mov edx,[0x3000]
shl edx,5
add edx,window_data
movzx eax, word [0xfb0a]
movzx ebx, word [0xfb0c]
mov ecx,[edx+0] ; mouse inside the area ?
add eax,14
cmp eax,ecx
jb no_mouse_disable
sub eax,14
add ecx,[edx+8]
cmp eax,ecx
jg no_mouse_disable
mov ecx,[edx+4]
add ebx,20
cmp ebx,ecx
jb no_mouse_disable
sub ebx,20
add ecx,[edx+12]
cmp ebx,ecx
jg no_mouse_disable
disable_m:
cmp dword [0xf204],dword 0
jne @f
call draw_mouse_under
@@:
mov [0xf204],dword 1
no_mouse_disable:
popad
ret
__sys_draw_pointer:
cli
pushad
cmp dword [0xf204],dword 0 ; mouse visible ?
je chms00
dec dword [0xf204]
cmp [0xf204],dword 0
jnz nodmu2
movzx ebx,word [0xfb0c]
movzx eax,word [0xfb0a]
call save_draw_mouse
popad
sti
ret
nodmu2:
popad
sti
ret
chms00:
; popad
; pushad
; cmp [0xf204],dword 0
; jne nodmp
movzx ecx,word [0xfb4a]
movzx edx,word [0xfb4c]
movzx ebx,word [0xfb0c]
movzx eax,word [0xfb0a]
cmp eax,ecx
jne redrawmouse
cmp ebx,edx
jne redrawmouse
jmp nodmp
redrawmouse:
call draw_mouse_under
redrawmouse_1:
call save_draw_mouse
nodmp:
popad
sti
ret
calculatebackground: ; background
; all black
mov [display_data-8],dword 4 ; size x
mov [display_data-4],dword 2 ; size y
mov edi, 0x300000 ; set background to black
xor eax, eax
mov ecx, 0x0fff00 / 4
cld
rep stosd
mov edi,display_data ; set os to use all pixels
mov eax,0x01010101
mov ecx,0x1fff00 / 4
rep stosd
mov byte [0xFFF0], 0 ; do not draw background!
ret
uglobal
imax dd 0x0
endg
delay_ms: ; delay in 1/1000 sec
push eax
push ecx
mov ecx,esi
; <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,[0x3010]
mov [edi],eax
pop edi
ret
delay_hs: ; delay in 1/100 secs
push eax
push ecx
push edx
mov edx,[timer_ticks];[0xfdf0]
add edx,eax
newtic:
mov ecx,[timer_ticks];[0xfdf0]
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
align 4
read_floppy_file:
; as input
;
; eax pointer to file
; ebx file lenght
; ecx start 512 byte block number
; edx number of blocks to read
; esi pointer to return/work area (atleast 20 000 bytes)
;
;
; on return
;
; eax = 0 command succesful
; 1 no fd base and/or partition defined
; 2 yet unsupported FS
; 3 unknown FS
; 4 partition not defined at hd
; 5 file not found
; ebx = size of file
mov edi,[0x3010]
add edi,0x10
add esi,[edi]
add eax,[edi]
pushad
mov edi,esi
add edi,1024
mov esi,0x100000+19*512
sub ecx,1
shl ecx,9
add esi,ecx
shl edx,9
mov ecx,edx
cld
rep movsb
popad
mov [esp+36],eax
mov [esp+24],ebx
ret
align 4
sys_programirq:
mov edi,[0x3010]
add edi,0x10
add eax,[edi]
mov edx,ebx
shl edx,2
add edx,irq_owner
mov edx,[edx]
mov edi,[0x3010]
mov edi,[edi+0x4]
cmp edx,edi
je spril1
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:
mov edx,eax ; check for correct owner
shl edx,2
add edx,irq_owner
mov edx,[edx]
mov edi,[0x3010]
mov edi,[edi+0x4]
cmp edx,edi
je gidril1
mov [esp+36],eax
mov [esp+32],dword 2
mov [esp+24],ebx
ret
gidril1:
mov ebx,eax
shl ebx,12
add ebx,0x2e0000
mov eax,[ebx]
mov ecx,1
test eax,eax
jz gid1
dec eax
mov esi,ebx
mov [ebx],eax
movzx ebx,byte [ebx+0x10]
add esi,0x10
mov edi,esi
inc esi
mov ecx,4000 / 4
cld
rep movsd
xor ecx,ecx
gid1:
mov [esp+36],eax
mov [esp+32],ecx
mov [esp+24],ebx
ret
set_io_access_rights:
pushad
mov edi,[0x3000]
imul edi,tss_step
add edi,tss_data+128
; add edi,128
mov ecx,eax
and ecx,7 ; offset in byte
shr eax,3 ; number of byte
add edi,eax
mov ebx,1
shl ebx,cl
cmp ebp,0 ; enable access - ebp = 0
jne siar1
not ebx
and [edi],byte bl
popad
ret
siar1:
or [edi],byte bl ; disable access - ebp = 1
popad
ret
r_f_port_area:
test eax, eax
jnz free_port_area
; je r_port_area
; jmp free_port_area
; r_port_area:
pushad
cmp ebx,ecx ; beginning > end ?
jg rpal1
mov esi,[0x2d0000]
cmp esi,0 ; no reserved areas ?
je rpal2
cmp esi,255 ; max reserved
jge rpal1
rpal3:
mov edi,esi
shl edi,4
add edi,0x2d0000
cmp ebx,[edi+8]
jg 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
mov ebp,0 ; enable - eax = port
call set_io_access_rights
popad
inc eax
cmp eax,ecx
jbe new_port_access
no_unmask_io:
popad ; end enable io map
sti
mov edi,[0x2d0000]
add edi,1
mov [0x2d0000],edi
shl edi,4
add edi,0x2d0000
mov esi,[0x3010]
mov esi,[esi+0x4]
mov [edi],esi
mov [edi+4],ebx
mov [edi+8],ecx
xor eax, eax
ret
free_port_area:
pushad
mov esi,[0x2d0000] ; no reserved areas ?
cmp esi,0
je frpal2
mov edx,[0x3010]
mov edx,[edx+4]
frpal3:
mov edi,esi
shl edi,4
add edi,0x2d0000
cmp edx,[edi]
jne frpal4
cmp ebx,[edi+4]
jne frpal4
cmp ecx,[edi+8]
jne frpal4
jmp frpal1
frpal4:
dec esi
jnz frpal3
frpal2:
popad
mov eax,1
ret
frpal1:
mov ecx,256
sub ecx,esi
shl ecx,4
mov esi,edi
add esi,16
cld
rep movsb
dec dword [0x2d0000]
popad
; disable port access at port IO map
pushad ; start disable io map
cmp ecx,65536 ;16384
jge no_mask_io
mov eax,ebx
new_port_access_disable:
pushad
mov ebp,1 ; disable - eax = port
call set_io_access_rights
popad
inc eax
cmp eax,ecx
jbe new_port_access_disable
no_mask_io:
popad ; end disable io map
xor eax, eax
ret
reserve_free_irq:
cmp eax,0
jz reserve_irq
mov edi,ebx
shl edi,2
add edi,irq_owner
mov edx,[edi]
mov eax,[0x3010]
mov eax,[eax+0x4]
mov ecx,1
cmp edx,eax
jne fril1
mov [edi],dword 0
mov ecx,0
fril1:
mov [esp+36],ecx ; return in eax
ret
reserve_irq:
mov edi,ebx
shl edi,2
add edi,irq_owner
mov edx,[edi]
mov ecx,1
cmp edx,0
jne ril1
mov edx,[0x3010]
mov edx,[edx+0x4]
mov [edi],edx
mov ecx,0
ril1:
mov [esp+36],ecx ; return in eax
ret
drawbackground:
cmp [0xfe0c],word 0x12
jne dbrv12
cmp [display_data-12],dword 1
jne bgrstr12
call vga_drawbackground_tiled
ret
bgrstr12:
call vga_drawbackground_stretch
ret
dbrv12:
cmp [0xfe0c],word 0100000000000000b
jge dbrv20
cmp [0xfe0c],word 0x13
je dbrv20
call vesa12_drawbackground
ret
dbrv20:
cmp [display_data-12],dword 1
jne bgrstr
call vesa20_drawbackground_tiled
ret
bgrstr:
call vesa20_drawbackground_stretch
ret
sys_putimage:
cmp [0xfe0c],word 0x12
jne spiv20
call vga_putimage
ret
spiv20:
cmp [0xfe0c],word 0100000000000000b
jge piv20
cmp [0xfe0c],word 0x13
je piv20
call vesa12_putimage
ret
piv20:
call vesa20_putimage
ret
; eax x beginning
; ebx y beginning
; ecx x end
; edx y end
; edi color
__sys_drawbar:
cmp [0xfe0c],word 0x12
jne sdbv20
call vga_drawbar
ret
sdbv20:
cmp [0xfe0c],word 0100000000000000b
jge dbv20
cmp [0xfe0c],word 0x13
je dbv20
call vesa12_drawbar
ret
dbv20:
call vesa20_drawbar
ret
kb_read:
push ecx edx
mov ecx,0xffff
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,0xffff
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,0xffff
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,0xffff
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,0xffff
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,0xffff
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,0xffff
c_accept:
in al,0x64
test al,2
jz c_ok
loop c_accept
c_error:
mov ah,1
jmp c_exit
c_ok:
xor ah,ah
c_exit:
ret
setmouse: ; set mousepicture -pointer
; ps2 mouse enable
mov [0xf200],dword mousepointer
cli
mov bl,0xa8 ; enable mouse cmd
call kb_cmd
call kb_read ; read status
mov bl,0x20 ; get command byte
call kb_cmd
call kb_read
or al,3 ; enable interrupt
mov bl,0x60 ; write command
push eax
call kb_cmd
pop eax
call kb_write
mov bl,0xd4 ; for mouse
call kb_cmd
mov al,0xf4 ; enable mouse device
call kb_write
call kb_read ; read status return
; com1 mouse enable
mov bx,0x3f8 ; combase
mov dx,bx
add dx,3
mov al,0x80
out dx,al
mov dx,bx
add dx,1
mov al,0
out dx,al
mov dx,bx
add dx,0
mov al,0x30*2 ; 0x30 / 4
out dx,al
mov dx,bx
add dx,3
mov al,2 ; 3
out dx,al
mov dx,bx
add dx,4
mov al,0xb
out dx,al
mov dx,bx
add dx,1
mov al,1
out dx,al
; com2 mouse enable
mov bx,0x2f8 ; combase
mov dx,bx
add dx,3
mov al,0x80
out dx,al
mov dx,bx
add dx,1
mov al,0
out dx,al
mov dx,bx
add dx,0
mov al,0x30*2
out dx,al
mov dx,bx
add dx,3
mov al,2
out dx,al
mov dx,bx
add dx,4
mov al,0xb
out dx,al
mov dx,bx
add dx,1
mov al,1
out dx,al
ret
_rdtsc:
mov edx,[cpuid_1+3*4]
test edx,00010000b
jz ret_rdtsc
rdtsc
ret
ret_rdtsc:
mov edx,0xffffffff
mov eax,0xffffffff
ret
rerouteirqs:
cli
mov al,0x11 ; icw4, edge triggered
out 0x20,al
call pic_delay
out 0xA0,al
call pic_delay
mov al,0x20 ; generate 0x20 +
out 0x21,al
call pic_delay
mov al,0x28 ; generate 0x28 +
out 0xA1,al
call pic_delay
mov al,0x04 ; slave at irq2
out 0x21,al
call pic_delay
mov al,0x02 ; at irq9
out 0xA1,al
call pic_delay
mov al,0x01 ; 8086 mode
out 0x21,al
call pic_delay
out 0xA1,al
call pic_delay
mov al,255 ; mask all irq's
out 0xA1,al
call pic_delay
out 0x21,al
call pic_delay
mov ecx,0x1000
cld
picl1: call pic_delay
loop picl1
mov al,255 ; mask all irq's
out 0xA1,al
call pic_delay
out 0x21,al
call pic_delay
cli
ret
pic_delay:
jmp pdl1
pdl1: ret
sys_msg_board_str:
pushad
@@:
cmp [esi],byte 0
je @f
mov eax,1
movzx ebx,byte [esi]
call sys_msg_board
inc esi
jmp @b
@@:
popad
ret
uglobal
msg_board_data: times 512 db 0
msg_board_count dd 0x0
endg
sys_msg_board:
; eax=1 : write : bl byte to write
; eax=2 : read : ebx=0 -> no data, ebx=1 -> data in al
mov ecx,[msg_board_count]
cmp eax, 1
jne smbl1
mov [msg_board_data+ecx],bl
inc ecx
and ecx, 511
mov [msg_board_count], ecx
mov [check_idle_semaphore], 5
ret
smbl1:
cmp eax, 2
jne smbl2
test ecx, ecx
jz smbl21
; mov edi, msg_board_data
; mov esi, msg_board_data+1
; movzx eax, byte [edi]
mov eax, msg_board_data+1
mov ebx, msg_board_data
movzx edx, byte [ebx]
call memmove
; push ecx
; shr ecx, 2
; cld
; rep movsd
; pop ecx
; and ecx, 3
; rep movsb
dec [msg_board_count]
mov [esp+36], edx ;eax
mov [esp+24], dword 1
ret
smbl21:
mov [esp+36], ecx
mov [esp+24], ecx
smbl2:
ret
sys_trace:
test eax, eax ; get event data
jnz no_get_sys_events
mov esi,save_syscall_data ; data
mov edi,[0x3010]
mov edi,[edi+0x10]
add edi,ebx
cld
rep movsb
mov [esp+24],dword 0
mov eax,[save_syscall_count] ; count
mov [esp+36],eax
ret
no_get_sys_events:
ret
sys_process_def:
cmp eax,1 ; set keyboard mode
jne no_set_keyboard_setup
mov edi,[0x3000]
shl edi,8
add edi,0x80000+0xB4
mov [edi],bl
ret
no_set_keyboard_setup:
cmp eax,2 ; get keyboard mode
jne no_get_keyboard_setup
mov edi,[0x3000]
shl edi,8
add edi,0x80000+0xB4
movzx eax, byte [edi]
mov [esp+36],eax
ret
no_get_keyboard_setup:
cmp 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:
ret
sys_ipc:
cmp eax,1 ; DEFINE IPC MEMORY
jne no_ipc_def
mov edi,[0x3000]
shl edi,8
add edi,0x80000
mov [edi+0xA0],ebx
mov [edi+0xA4],ecx
mov [esp+36],dword 0
ret
no_ipc_def:
cmp eax,2 ; SEND IPC MESSAGE
jne no_ipc_send
mov esi,1
mov edi,0x3020
ipcs1:
cmp [edi+4],ebx
je ipcs2
add edi,0x20
inc esi
cmp esi,[0x3004]
jbe ipcs1
mov [esp+36],dword 4
ret
ipcs2:
cli
push esi
mov eax,esi
shl eax,8
mov ebx,[eax+0x80000+0xa0]
test ebx,ebx ; ipc area not defined ?
je ipc_err1
add ebx,[eax+0x80000+0xa4]
mov eax,esi
shl eax,5
add ebx,[eax+0x3000+0x10] ; ebx <- max data position
mov eax,esi ; to
shl esi,8
add esi,0x80000
mov edi,[esi+0xa0]
shl eax,5
add eax,0x3000
add edi,[eax+0x10]
cmp [edi],byte 0 ; overrun ?
jne ipc_err2
mov ebp,edi
add edi,[edi+4]
add edi,8
mov esi,ecx ; from
mov eax,[0x3010]
mov eax,[eax+0x10]
add esi,eax
mov ecx,edx ; size
mov eax,edi
add eax,ecx
cmp eax,ebx
jge ipc_err3 ; not enough room ?
push ecx
mov eax,[0x3010]
mov eax,[eax+4]
mov [edi-8],eax
mov [edi-4],ecx
cld
rep movsb
pop ecx
add ecx,8
mov edi,ebp ; increase memory position
add dword [edi+4],ecx
mov edi,[esp]
shl edi,8
or dword [edi+0x80000+0xA8],dword 01000000b ; ipc message
cmp [check_idle_semaphore],dword 20
jge ipc_no_cis
mov [check_idle_semaphore],5
ipc_no_cis:
xor eax, eax
ipc_err:
add esp,4
mov [esp+36],eax
sti
ret
ipc_err1:
add esp,4
mov [esp+36],dword 1
sti
ret
ipc_err2:
add esp,4
mov [esp+36],dword 2
sti
ret
ipc_err3:
add esp,4
mov [esp+36],dword 3
sti
ret
no_ipc_send:
mov [esp+36],dword -1
ret
align 4
sys_gs: ; direct screen access
cmp eax,1 ; resolution
jne no_gs1
mov eax,[0xfe00]
shl eax,16
mov ax,[0xfe04]
add eax,0x00010001
mov [esp+36],eax
ret
no_gs1:
cmp eax,2 ; bits per pixel
jne no_gs2
movzx eax,byte [0xfbf1]
mov [esp+36],eax
ret
no_gs2:
cmp eax,3 ; bytes per scanline
jne no_gs3
mov eax,[0xfe08]
mov [esp+36],eax
ret
no_gs3:
mov [esp+36],dword -1
ret
align 4 ; PCI functions
sys_pci:
call pci_api
mov [esp+36],eax
ret
align 4 ; system functions
syscall_setpixel: ; SetPixel
mov edx,[0x3010]
add eax,[edx-twdw]
add ebx,[edx-twdw+4]
xor edi,edi ; no force
call [disable_mouse]
jmp [putpixel]
align 4
syscall_writetext: ; WriteText
mov edi,[0x3010]
mov ebp,[edi-twdw]
shl ebp,16
add ebp,[edi-twdw+4]
add edi,0x10
add ecx,[edi]
add eax,ebp
xor edi,edi
jmp dtext
align 4
syscall_openramdiskfile: ; OpenRamdiskFile
mov edi,[0x3010]
add edi,0x10
add eax,[edi]
add edx,[edi]
mov esi,12
call fileread
mov [esp+36],ebx
ret
align 4
syscall_putimage: ; PutImage
mov edi,[0x3010]
add edi,0x10
add eax,[edi]
mov edx,ecx
mov ecx,ebx
mov ebx,eax
call sys_putimage
mov [esp+36],eax
ret
align 4
syscall_drawrect: ; DrawRect
mov edi,ecx
test ax,ax
je drectr
test bx,bx
je drectr
movzx ecx,ax
shr eax,16
movzx edx,bx
shr ebx,16
add ecx,eax
add edx,ebx
jmp [drawbar]
drectr:
ret
align 4
syscall_getscreensize: ; GetScreenSize
movzx eax,word[0xfe00]
shl eax,16
mov ax,[0xfe04]
mov [esp+36],eax
ret
align 4
syscall_system: ; System
call sys_system
mov [esp+36],eax
ret
align 4
syscall_startapp: ; StartApp
mov edi,[0x3010]
add edi,0x10
add eax,[edi]
test ebx,ebx
jz noapppar
add ebx,[edi]
noapppar:
; call start_application_fl
call new_start_application_fl
mov [esp+36],eax
ret
align 4
syscall_cdaudio: ; CD
call sys_cd_audio
mov [esp+36],eax
ret
align 4
syscall_readhd: ; ReadHd
mov edi,[0x3010]
add edi,0x10
add esi,[edi]
add eax,[edi]
call read_hd_file
mov [esp+36],eax
mov [esp+24],ebx
ret
align 4
syscall_starthdapp: ; StartHdApp
mov edi,[0x3010]
add edi,0x10
add eax,[edi]
add ecx,[edi]
mov ebp,0
call start_application_hd
mov [esp+36],eax
ret
align 4
syscall_delramdiskfile: ; DelRamdiskFile
mov edi,[0x3010]
add edi,0x10
add eax,[edi]
call filedelete
mov [esp+36],eax
ret
align 4
syscall_writeramdiskfile: ; WriteRamdiskFile
mov edi,[0x3010]
add edi,0x10
add eax,[edi]
add ebx,[edi]
call filesave
mov [esp+36],eax
ret
align 4
syscall_getpixel: ; GetPixel
mov ecx,[0xfe00]
inc ecx
xor edx,edx
div ecx
mov ebx,edx
xchg eax,ebx
call dword [0xe024]
mov [esp+36],ecx
ret
align 4
syscall_readstring: ; ReadString
mov edi,[0x3010]
add edi,0x10
add eax,[edi]
call read_string
mov [esp+36],eax
ret
align 4
syscall_drawline: ; DrawLine
mov edi,[0x3010]
movzx edx,word[edi-twdw]
mov ebp,edx
shl edx,16
add ebp,edx
movzx edx,word[edi-twdw+4]
add eax,ebp
mov ebp,edx
shl edx,16
xor edi,edi
add edx,ebp
add ebx,edx
jmp [draw_line]
align 4
syscall_getirqowner: ; GetIrqOwner
shl eax,2
add eax,irq_owner
mov eax,[eax]
mov [esp+36],eax
ret
align 4
syscall_reserveportarea: ; ReservePortArea and FreePortArea
call r_f_port_area
mov [esp+36],eax
ret
align 4
syscall_appints: ; AppInts
test eax,eax
jnz unknown_app_int_fn
mov edi,[0x3010]
mov [edi+draw_data-0x3000+0x1c],ebx
ret
unknown_app_int_fn:
mov [esp+36],dword -1
ret
align 4
syscall_threads: ; CreateThreads
call sys_threads
mov [esp+36],eax
ret
align 4
stack_driver_stat:
call app_stack_handler ; Stack status
; mov [check_idle_semaphore],5 ; enable these for zero delay
; call change_task ; between sent packet
mov [esp+36],eax
ret
align 4
socket: ; Socket interface
call app_socket_handler
; mov [check_idle_semaphore],5 ; enable these for zero delay
; call change_task ; between sent packet
mov [esp+36],eax
mov [esp+24],ebx
ret
align 4
user_events: ; User event times
mov eax,0x12345678
mov [esp+36],eax
ret
align 4
read_from_hd: ; Read from hd - fn not in use
mov edi,[0x3010]
add edi,0x10
add eax,[edi]
add ecx,[edi]
add edx,[edi]
call file_read
mov [esp+36],eax
mov [esp+24],ebx
ret
align 4
write_to_hd: ; Write a file to hd
mov edi,[0x3010]
add edi,0x10
add eax,[edi]
add ecx,[edi]
add edx,[edi]
call file_write
ret
align 4
delete_from_hd: ; Delete a file from hd
mov edi,[0x3010]
add edi,0x10
add eax,[edi]
add ecx,[edi]
call file_delete
ret
align 4
undefined_syscall: ; Undefined system call
mov [esp+36],dword -1
ret
;clear_busy_flag_at_caller:
; push edi
; mov edi,[0x3000] ; restore processes tss pointer in gdt, busyfl?
; imul edi,8
; mov [edi+gdts+ tss0 +5], word 01010000b *256 +11101001b
; pop edi
; ret
keymap:
db '6',27
db '1234567890-=',8,9
db 'qwertyuiop[]',13
db '~asdfghjkl;',39,96,0,'\zxcvbnm,./',0,'45 '
db '@234567890123',180,178,184,'6',176,'7'
db 179,'8',181,177,183,185,182
db 'AB<D',255,'FGHIJKLMNOPQRSTUVWXYZ'
db 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
db 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
db 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
keymap_shift:
db '6',27
db '!@#$%^&*()_+',8,9
db 'QWERTYUIOP{}',13
db '~ASDFGHJKL:"~',0,'|ZXCVBNM<>?',0,'45 '
db '@234567890123',180,178,184,'6',176,'7'
db 179,'8',181,177,183,185,182
db 'AB>D',255,'FGHIJKLMNOPQRSTUVWXYZ'
db 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
db 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
db 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
keymap_alt:
db ' ',27
db ' @ $ {[]}\ ',8,9
db ' ',13
db ' ',0,' ',0,'4',0,' '
db ' ',180,178,184,'6',176,'7'
db 179,'8',181,177,183,185,182
db 'ABCD',255,'FGHIJKLMNOPQRSTUVWXYZ'
db 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
db 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
db 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
; device irq owners
uglobal
irq_owner: ; process id
dd 0x0
dd 0x0
dd 0x0
dd 0x0
dd 0x0
dd 0x0
dd 0x0
dd 0x0
dd 0x0
dd 0x0
dd 0x0
dd 0x0
dd 0x0
dd 0x0
dd 0x0
dd 0x0
endg
; on irq read ports
uglobal
irq00read dd 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
irq01read dd 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
irq02read dd 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
irq03read dd 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
irq04read dd 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
irq05read dd 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
irq06read dd 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
irq07read dd 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
irq08read dd 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
irq09read dd 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
irq10read dd 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
irq11read dd 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
irq12read dd 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
irq13read dd 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
irq14read dd 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
irq15read dd 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
endg
; status
uglobal
hd1_status dd 0x0 ; 0 - free : other - pid
application_table_status dd 0x0 ; 0 - free : other - pid
endg
; device addresses
uglobal
mididp dd 0x0
midisp dd 0x0
cdbase dd 0x0
cdid dd 0x0
hdbase dd 0x0 ; for boot 0x1f0
hdid dd 0x0
hdpos dd 0x0 ; for boot 0x1
fat32part dd 0x0 ; for boot 0x1
;part2_ld dd 0x0
;* start code - get process (3) - Mario79
active_process dd 0
;* end code - get active process (3) - Mario79
wraw_bacground_select db 0
lba_read_enabled dd 0x0 ; 0 = disabled , 1 = enabled
pci_access_enabled dd 0x0 ; 0 = disabled , 1 = enabled
sb16 dd 0x0
wss dd 0x0
buttontype dd 0x0
windowtypechanged dd 0x0
endg
iglobal
keyboard dd 0x1
sound_dma dd 0x1
syslang dd 0x1
endg
IncludeIGlobals
endofcode:
IncludeUGlobals
uglobals_size = $ - endofcode
diff16 "end of kernel code",$
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