WebSVN – Kolibri OS – Blame – /kernel/trunk/kernel.asm

Rev	Author	Line No.	Line
1	ha	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		2	;;
		3	;; Kolibri OS - based on source code Menuet OS, but not 100% compatible.
		4	;;
		5	;; See file COPYING or GNU.TXT for details with these additional details:
		6	;; - All code written in 32 bit x86 assembly language
		7	;; - No external code (eg. bios) at process execution time
		8	;;
		9	;;
		10	;; Compile with last version FASM
		11	;;
		12	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
7	me_root	13	include "kglobals.inc"
1	ha	14	include "lang.inc"
		15
		16	WinMapAddress equ 0x460000
		17	display_data = 0x460000
		18
		19	max_processes equ 255
		20
		21	window_data equ 0x0000
		22	tss_data equ 0xD20000
		23	;tss_step equ (128+2048) ; tss & i/o - 16384 ports, * 256=557056
		24	tss_step equ (128+8192) ; tss & i/o - 65535 ports, * 256=557056*4
		25	draw_data equ 0xC00000
		26	sysint_stack_data equ 0xC03000
		27
		28
		29	twdw equ (0x3000-window_data)
		30
		31	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		32	;;
		33	;; Included files:
		34	;;
		35	;; Kernel16.inc
		36	;; - Booteng.inc English text for bootup
		37	;; - Bootcode.inc Hardware setup
		38	;; - Pci16.inc PCI functions
		39	;;
		40	;; Kernel32.inc
		41	;; - Sys32.inc Process management
		42	;; - Shutdown.inc Shutdown and restart
		43	;; - Fat32.inc Read / write hd
		44	;; - Vesa12.inc Vesa 1.2 driver
		45	;; - Vesa20.inc Vesa 2.0 driver
		46	;; - Vga.inc VGA driver
		47	;; - Stack.inc Network interface
		48	;; - Mouse.inc Mouse pointer
		49	;; - Scincode.inc Window skinning
		50	;; - Pci32.inc PCI functions
		51	;;
		52	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		53
		54
		55	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		56	;; ;;
		57	;; 16 BIT ENTRY FROM BOOTSECTOR ;;
		58	;; ;;
		59	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		60
		61	use16
		62	org 0x10000
		63	jmp start_of_code
		64
		65	; mike.dld {
		66	db 0
		67	dd servetable-0x10000
		68	draw_line dd __sys_draw_line
		69	disable_mouse dd __sys_disable_mouse
		70	draw_pointer dd __sys_draw_pointer
		71	drawbar dd __sys_drawbar
		72	putpixel dd __sys_putpixel
		73	; } mike.dld
		74
61	halyavin	75	version db 'Kolibri OS version 0.5.3.0 ',13,10,13,10,0
1	ha	76	;dd endofcode-0x10000
		77
		78	;db 'Boot02'
		79	;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
		80	include "boot/preboot.inc"
		81	;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
		82
		83	preboot_lfb db 0
		84	preboot_bootlog db 0
		85
		86
		87	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		88	;; ;;
		89	;; 16 BIT INCLUDED FILES ;;
		90	;; ;;
		91	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		92
7	me_root	93	include "kernel16.inc"
1	ha	94
		95	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		96	;; ;;
		97	;; SWITCH TO 32 BIT PROTECTED MODE ;;
		98	;; ;;
		99	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		100
3	halyavin	101	os_data = os_data_l-gdts ; GDTs
		102	os_code = os_code_l-gdts
1	ha	103	int_code equ int_code_l-gdts
		104	int_data equ int_data_l-gdts
		105	tss0sys equ tss0sys_l-gdts
		106	graph_data equ 3+graph_data_l-gdts
		107	tss0 equ tss0_l-gdts
		108	app_code equ 3+app_code_l-gdts
		109	app_data equ 3+app_data_l-gdts
		110
		111
		112
		113	; CR0 Flags - Protected mode and Paging
		114
		115	mov ecx,0x00000001
		116	;and ebx,65535
		117	;cmp ebx,00100000000000000b ; lfb -> paging
		118	;jb no_paging
		119	;mov ax,0x0000
		120	;mov es,ax
		121	;mov al,[es:0x901E]
		122	;cmp al,1
		123	;je no_paging
		124	;or ecx, 0x80000000
		125	;no_paging:
		126
		127	; Enabling 32 bit protected mode
		128
		129	sidt [cs:old_ints_h-0x10000]
		130
		131	cli ; disable all irqs
		132	cld
		133	mov al,255 ; mask all irqs
		134	out 0xa1,al
		135	out 0x21,al
		136	l.5: in al, 0x64 ; Enable A20
		137	test al, 2
		138	jnz l.5
		139	mov al, 0xD1
		140	out 0x64, al
		141	l.6: in al, 0x64
		142	test al, 2
		143	jnz l.6
		144	mov al, 0xDF
		145	out 0x60, al
		146	lgdt [cs:gdts-0x10000] ; Load GDT
		147	mov eax, cr0 ; Turn on paging // protected mode
		148	or eax, ecx
		149	and eax, 10011111b 65536256 + 0xffffff ; caching enabled
		150	mov cr0, eax
		151	jmp byte $+2
		152	mov ax,os_data ; Selector for os
		153	mov ds,ax
		154	mov es,ax
		155	mov fs,ax
		156	mov gs,ax
		157	mov ss,ax
12	halyavin	158	mov esp,0x3ec00 ; Set stack
1	ha	159	jmp pword os_code:B32 ; jmp to enable 32 bit mode
		160
		161	use32
		162
		163	iglobal
		164	boot_memdetect db 'Determining amount of memory',0
		165	boot_fonts db 'Fonts loaded',0
		166	boot_tss db 'Setting TSSs',0
		167	boot_cpuid db 'Reading CPUIDs',0
		168	boot_devices db 'Detecting devices',0
		169	boot_timer db 'Setting timer',0
		170	boot_irqs db 'Reprogramming IRQs',0
		171	boot_setmouse db 'Setting mouse',0
		172	boot_windefs db 'Setting window defaults',0
		173	boot_bgr db 'Calculating background',0
		174	boot_resirqports db 'Reserving IRQs & ports',0
		175	boot_setrports db 'Setting addresses for IRQs',0
		176	boot_setostask db 'Setting OS task',0
		177	boot_allirqs db 'Unmasking all IRQs',0
		178	boot_tsc db 'Reading TSC',0
		179	boot_pal_ega db 'Setting EGA/CGA 320x200 palette',0
		180	boot_pal_vga db 'Setting VGA 640x480 palette',0
		181	boot_mtrr db 'Setting MTRR',0
		182	boot_tasking db 'All set - press ESC to start',0
		183	endg
		184
		185	iglobal
		186	boot_y dd 10
		187	endg
		188
		189	boot_log:
		190	pushad
		191
		192	mov edx,esi
		193	.bll3: inc edx
		194	cmp [edx],byte 0
		195	jne .bll3
		196	sub edx,esi
		197	mov eax,10*65536
		198	mov ax,word [boot_y]
		199	add [boot_y],dword 10
		200	mov ebx,0xffffff
		201	mov ecx,esi
		202	mov edi,1
		203	call dtext
		204
		205	mov [novesachecksum],1000
		206	call checkEgaCga
		207
		208	cmp [preboot_blogesc],byte 1
		209	je .bll2
		210
		211	cmp esi,boot_tasking
		212	jne .bll2
		213	; begin ealex 04.08.05
		214	; in al,0x61
		215	; and al,01111111b
41	mikedld	216	; out 0x61,al
1	ha	217	; end ealex 04.08.05
		218	.bll1: in al,0x60 ; wait for ESC key press
		219	cmp al,129
		220	jne .bll1
		221
		222	.bll2: popad
		223
		224	ret
		225
		226	uglobal
		227	cpuid_0 dd 0,0,0,0
		228	cpuid_1 dd 0,0,0,0
		229	cpuid_2 dd 0,0,0,0
		230	cpuid_3 dd 0,0,0,0
		231	endg
		232
		233	iglobal
		234	firstapp db 'LAUNCHER '
		235	char db 'CHAR MT '
		236	char2 db 'CHAR2 MT '
		237	bootpath db '/KOLIBRI '
		238	bootpath2 db 0
		239	vmode db 'VMODE MDR'
		240	vrr_m db 'VRR_M '
		241	endg
		242
		243
		244	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		245	;; ;;
		246	;; 32 BIT ENTRY ;;
		247	;; ;;
		248	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		249
		250	align 4
		251
		252	B32:
		253	; CLEAR 0x280000-0xF00000
		254
		255	xor eax,eax
		256	mov edi,0x280000
		257	mov ecx,(0x100000*0xF-0x280000) / 4
		258	cld
		259	rep stosd
		260	; CLEAR 0x80000-0x90000

Subversion Repositories Kolibri OS

(root)/kernel/trunk/kernel.asm @ 435 – Rev 75