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
82	halyavin	62	org 0x0
1	ha	63	jmp start_of_code
		64
		65	; mike.dld {
90	mario79	66	org $+0x10000
1	ha	67	db 0
		68	dd servetable-0x10000
		69	draw_line dd __sys_draw_line
		70	disable_mouse dd __sys_disable_mouse
		71	draw_pointer dd __sys_draw_pointer
		72	drawbar dd __sys_drawbar
		73	putpixel dd __sys_putpixel
		74	; } mike.dld
		75
77	diamond	76	version db 'Kolibri OS version 0.5.3.1 ',13,10,13,10,0
1	ha	77	;dd endofcode-0x10000
		78
		79	;db 'Boot02'
		80	;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
		81	include "boot/preboot.inc"
		82	;!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
		83
		84	preboot_lfb db 0
		85	preboot_bootlog db 0
		86
		87
		88	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		89	;; ;;
		90	;; 16 BIT INCLUDED FILES ;;
		91	;; ;;
		92	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		93
7	me_root	94	include "kernel16.inc"
1	ha	95
		96	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		97	;; ;;
		98	;; SWITCH TO 32 BIT PROTECTED MODE ;;
		99	;; ;;
		100	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		101
3	halyavin	102	os_data = os_data_l-gdts ; GDTs
		103	os_code = os_code_l-gdts
1	ha	104	int_code equ int_code_l-gdts
		105	int_data equ int_data_l-gdts
		106	tss0sys equ tss0sys_l-gdts
		107	graph_data equ 3+graph_data_l-gdts
		108	tss0 equ tss0_l-gdts
		109	app_code equ 3+app_code_l-gdts
		110	app_data equ 3+app_data_l-gdts
		111
		112
		113
		114	; CR0 Flags - Protected mode and Paging
		115
		116	mov ecx,0x00000001
		117	;and ebx,65535
		118	;cmp ebx,00100000000000000b ; lfb -> paging
		119	;jb no_paging
		120	;mov ax,0x0000
		121	;mov es,ax
		122	;mov al,[es:0x901E]
		123	;cmp al,1
		124	;je no_paging
		125	;or ecx, 0x80000000
		126	;no_paging:
		127
		128	; Enabling 32 bit protected mode
		129
		130	sidt [cs:old_ints_h-0x10000]
		131
		132	cli ; disable all irqs
		133	cld
		134	mov al,255 ; mask all irqs
		135	out 0xa1,al
		136	out 0x21,al
		137	l.5: in al, 0x64 ; Enable A20
		138	test al, 2
		139	jnz l.5
		140	mov al, 0xD1
		141	out 0x64, al
		142	l.6: in al, 0x64
		143	test al, 2
		144	jnz l.6
		145	mov al, 0xDF
		146	out 0x60, al
		147	lgdt [cs:gdts-0x10000] ; Load GDT
		148	mov eax, cr0 ; Turn on paging // protected mode
		149	or eax, ecx
		150	and eax, 10011111b 65536256 + 0xffffff ; caching enabled
		151	mov cr0, eax
77	diamond	152	jmp $+2
82	halyavin	153	org $+0x10000
1	ha	154	mov ax,os_data ; Selector for os
		155	mov ds,ax
		156	mov es,ax
		157	mov fs,ax
		158	mov gs,ax
		159	mov ss,ax
12	halyavin	160	mov esp,0x3ec00 ; Set stack
1	ha	161	jmp pword os_code:B32 ; jmp to enable 32 bit mode
		162
		163	use32
		164
		165	iglobal
		166	boot_memdetect db 'Determining amount of memory',0
		167	boot_fonts db 'Fonts loaded',0
		168	boot_tss db 'Setting TSSs',0
		169	boot_cpuid db 'Reading CPUIDs',0
		170	boot_devices db 'Detecting devices',0
		171	boot_timer db 'Setting timer',0
		172	boot_irqs db 'Reprogramming IRQs',0
		173	boot_setmouse db 'Setting mouse',0
		174	boot_windefs db 'Setting window defaults',0
		175	boot_bgr db 'Calculating background',0
		176	boot_resirqports db 'Reserving IRQs & ports',0
		177	boot_setrports db 'Setting addresses for IRQs',0
		178	boot_setostask db 'Setting OS task',0
		179	boot_allirqs db 'Unmasking all IRQs',0
		180	boot_tsc db 'Reading TSC',0
		181	boot_pal_ega db 'Setting EGA/CGA 320x200 palette',0
		182	boot_pal_vga db 'Setting VGA 640x480 palette',0
		183	boot_mtrr db 'Setting MTRR',0
		184	boot_tasking db 'All set - press ESC to start',0
		185	endg
		186
		187	iglobal
		188	boot_y dd 10
		189	endg
		190
		191	boot_log:
		192	pushad
		193
		194	mov edx,esi
		195	.bll3: inc edx
		196	cmp [edx],byte 0
		197	jne .bll3
		198	sub edx,esi
		199	mov eax,10*65536
		200	mov ax,word [boot_y]
		201	add [boot_y],dword 10
		202	mov ebx,0xffffff
		203	mov ecx,esi
		204	mov edi,1
		205	call dtext
		206
		207	mov [novesachecksum],1000
		208	call checkEgaCga
		209
		210	cmp [preboot_blogesc],byte 1
		211	je .bll2
		212
		213	cmp esi,boot_tasking
		214	jne .bll2
		215	; begin ealex 04.08.05
		216	; in al,0x61
		217	; and al,01111111b
41	mikedld	218	; out 0x61,al
1	ha	219	; end ealex 04.08.05
		220	.bll1: in al,0x60 ; wait for ESC key press
		221	cmp al,129
		222	jne .bll1
		223
		224	.bll2: popad
		225
		226	ret
		227
		228	uglobal
		229	cpuid_0 dd 0,0,0,0
		230	cpuid_1 dd 0,0,0,0
		231	cpuid_2 dd 0,0,0,0
		232	cpuid_3 dd 0,0,0,0
		233	endg
		234
		235	iglobal
		236	firstapp db 'LAUNCHER '
		237	char db 'CHAR MT '
		238	char2 db 'CHAR2 MT '
		239	bootpath db '/KOLIBRI '
		240	bootpath2 db 0
		241	vmode db 'VMODE MDR'
		242	vrr_m db 'VRR_M '
		243	endg
		244
		245
		246	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		247	;; ;;
		248	;; 32 BIT ENTRY ;;
		249	;; ;;
		250	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		251
		252	align 4
		253
		254	B32:
		255	; CLEAR 0x280000-0xF00000

Subversion Repositories Kolibri OS

(root)/kernel/trunk/kernel.asm @ 1941 – Rev 92