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Rev 1703 Rev 1941
Line 9... Line 9...
9 
;;  KolibriOS 16-bit loader,                                    ;;
 9 
;;  KolibriOS 16-bit loader,                                    ;;
10 
;;                        based on bootcode for MenuetOS        ;;
 10 
;;                        based on bootcode for MenuetOS        ;;
11 
;;                                                              ;;
 11 
;;                                                              ;;
12 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 12 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
Line 13... Line 13...
13 
 
 13 
 
Line 14... Line 14...
14 
$Revision: 1703 $
 14 
$Revision: 1941 $
15 
 
 15 
 
16 
 
 16 
 
17 
;==========================================================================
 17 
;==========================================================================
18 
;
 18 
;
Line 19... Line 19...
19 
;                           16 BIT FUNCTIONS
 19 
;                           16 BIT FUNCTIONS
20 
;
 20 
;
21 
;==========================================================================
 21 
;==========================================================================
22 
 
 22 
 
23 
 
 23 
if 0
24 
putchar:
 24 
putchar:
Line 59... Line 59...
59 
{
 59 
{
60 
	mov	dx, row*256 + column
 60 
	mov	dx, row*256 + column
61 
	call	setcursor
 61 
	call	setcursor
62 
}
 62 
}
Line -... Line 63...
- 
 
 63 
 
- 
 
 64 
end if
63 
 
 65 
 
64 
boot_read_floppy:
 66 
boot_read_floppy:
65 
	push	si
 67 
	push	si
66 
	xor	si, si
 68 
	xor	si, si
67 
	mov	ah, 2	; read
 69 
	mov	ah, 2	; read
Line 76... Line 78...
76 
@@:
 78 
@@:
77 
	pop	si
 79 
	pop	si
78 
	ret
 80 
	ret
Line 79... Line 81...
79 
 
 81 
 
80 
sayerr_plain:
 - 
 
81 
	call	printplain
 82 
sayerr_plain:
Line 82... Line 83...
82 
	jmp	$
 83 
	jmp	$
83 
 
 - 
 
84 
sayerr:
 84 
 
Line 85... Line 85...
85 
	call	print
 85 
sayerr:
86 
	jmp	$
 86 
	jmp	$
Line 171... Line 171...
171 
	push	0xb800
 171 
	push	0xb800
172 
	pop	es
 172 
	pop	es
173 
	xor	di, di
 173 
	xor	di, di
174 
	mov	ah, 1*16+15
 174 
	mov	ah, 1*16+15
Line 175... Line -...
175 
 
 - 
 
176 
; draw top
 - 
 
177 
	mov	si, d80x25_top
 - 
 
178 
	mov	cx, d80x25_top_num * 80
 - 
 
179 
@@:
 - 
 
180 
	lodsb
 - 
 
181 
	stosw
 - 
 
182 
	loop	@b
 - 
 
183 
; draw spaces
 - 
 
184 
	mov	si, space_msg
 - 
 
185 
	mov	dx, 25 - d80x25_top_num - d80x25_bottom_num
 - 
 
186 
dfl1:
 - 
 
187 
	push	si
 - 
 
188 
	mov	cx, 80
 - 
 
189 
@@:
 - 
 
190 
	lodsb
 - 
 
191 
	stosw
 - 
 
192 
	loop	@b
 - 
 
193 
	pop	si
 - 
 
194 
	dec	dx
 - 
 
195 
	jnz	dfl1
 - 
 
196 
; draw bottom
 - 
 
197 
	mov	si, d80x25_bottom
 - 
 
198 
	mov	cx, d80x25_bottom_num * 80
 - 
 
199 
@@:
 - 
 
200 
	lodsb
 - 
 
201 
	stosw
 - 
 
202 
	loop	@b
 - 
 
203 
 
 - 
 
204 
	mov	byte [space_msg+80], 0	  ; now space_msg is null terminated
 - 
 
205 
 
 - 
 
206 
	_setcursor d80x25_top_num,0
 - 
 
207 
 
 175 
 
Line 208... Line 176...
208 
cpugood:
 176 
cpugood:
209 
 
 177 
 
210 
	push	0
 178 
	push	0
Line 266... Line 234...
266 
	test	cx, 2
 234 
	test	cx, 2
267 
	jz	apm_end 		; APM 32-bit protected-mode interface not supported
 235 
	jz	apm_end 		; APM 32-bit protected-mode interface not supported
268 
	mov	[es:0x9044], ax 	; Save APM Version
 236 
	mov	[es:0x9044], ax 	; Save APM Version
269 
	mov	[es:0x9046], cx 	; Save APM flags
 237 
	mov	[es:0x9046], cx 	; Save APM flags
Line 270... Line -...
270 
 
 - 
 
271 
	; Write APM ver ----
 - 
 
272 
	and	ax, 0xf0f
 - 
 
273 
	add	ax, '00'
 - 
 
274 
	mov	si, msg_apm
 - 
 
275 
	mov	[si + 5], ah
 - 
 
276 
	mov	[si + 7], al
 - 
 
277 
	_setcursor 0, 3
 - 
 
278 
	call	printplain
 - 
 
279 
	; ------------------
 - 
 
280 
 
 238 
 
281 
	mov	ax, 0x5304		; Disconnect interface
 239 
	mov	ax, 0x5304		; Disconnect interface
282 
	xor	bx, bx
 240 
	xor	bx, bx
283 
	int	0x15
 241 
	int	0x15
284 
	mov	ax, 0x5303		; Connect 32 bit mode interface
 242 
	mov	ax, 0x5303		; Connect 32 bit mode interface
Line 289... Line 247...
289 
	mov	[es:0x9050], ax
 247 
	mov	[es:0x9050], ax
290 
	mov	[es:0x9052], cx
 248 
	mov	[es:0x9052], cx
291 
	mov	[es:0x9054], dx
 249 
	mov	[es:0x9054], dx
Line 292... Line 250...
292 
 
 250 
 
293 
apm_end:
 - 
 
Line 294... Line 251...
294 
	_setcursor d80x25_top_num, 0
 251 
apm_end:
295 
 
 252 
 
296 
;CHECK current of code
 253 
;CHECK current of code
297 
	cmp	[cfgmanager.loader_block], -1
 254 
	cmp	[cfgmanager.loader_block], -1
298 
	jz	noloaderblock
 255 
	jz	noloaderblock
299 
	les	bx, [cfgmanager.loader_block]
 - 
 
300 
	cmp	byte [es:bx], 1
 256 
	les	bx, [cfgmanager.loader_block]
301 
	mov	si, loader_block_error
 257 
	cmp	byte [es:bx], 1
302 
	jnz	sayerr
 258 
	jnz	sayerr
Line 303... Line 259...
303 
	push	0
 259 
	push	0
Line 342... Line 298...
342 
	cmp	byte [di+preboot_dma-preboot_device], 1
 298 
	cmp	byte [di+preboot_dma-preboot_device], 1
343 
	adc	byte [di+preboot_dma-preboot_device], 0
 299 
	adc	byte [di+preboot_dma-preboot_device], 0
344 
	cmp	byte [di+preboot_biosdisk-preboot_device], 1
 300 
	cmp	byte [di+preboot_biosdisk-preboot_device], 1
345 
	adc	byte [di+preboot_biosdisk-preboot_device], 0
 301 
	adc	byte [di+preboot_biosdisk-preboot_device], 0
Line 346... Line -...
346 
 
 - 
 
347 
	_setcursor 7,0
 - 
 
348 
	mov	si, space_msg
 - 
 
349 
	call	printplain
 302 
 
350 
;        pop     ax              ; <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< ??
 303 
;        pop     ax              ; <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< ??
351 
	jmp	.continue
 304 
	jmp	.continue
352 
.loader_block dd -1
 305 
.loader_block dd -1
353 
.continue:
 306 
.continue:
354 
	sti
 - 
 
355 
	_setcursor 6,0
 - 
 
356 
	mov	si, space_msg
 - 
 
357 
	call	printplain
 - 
 
358 
	call	printplain
 - 
 
359 
	_setcursor 6,0
 - 
 
360 
	mov	si, loading_msg
 - 
 
361 
	call	print
 - 
 
362 
	_setcursor 15,0
 307 
	sti
Line 363... Line 308...
363 
	jmp	 .load
 308 
	jmp	 .load
364 
 
 309 
 
365 
.loadc:
 310 
.loadc:
366 
	pop	eax
 311 
	pop	eax
367 
.cont:
 312 
.cont:
368 
	push	cs
 - 
 
369 
	pop	ds
 - 
 
370 
	mov	si, space_msg
 - 
 
371 
	mov	byte [si+80], 0
 - 
 
372 
	_setcursor 15,0
 - 
 
373 
	call	printplain
 313 
	push	cs
Line 374... Line 314...
374 
	_setcursor 15,0
 314 
	pop	ds
Line 375... Line 315...
375 
.load:
 315 
.load:
Line 404... Line 344...
404 
 
 344 
 
Line 405... Line 345...
405 
; READ DISKETTE TO MEMORY
 345 
; READ DISKETTE TO MEMORY
406 
 
 346 
 
407 
	cmp	[boot_dev],0
 - 
 
408 
	jne	no_sys_on_floppy
 - 
 
409 
	mov	si,diskload
 347 
	cmp	[boot_dev],0
410 
	call	print
 348 
	jne	no_sys_on_floppy
411 
	xor	ax, ax		  ; reset drive
 349 
	xor	ax, ax		  ; reset drive
412 
	xor	dx, dx
 350 
	xor	dx, dx
413 
	int	0x13
 351 
	int	0x13
Line 462... Line 400...
462 
	jnz	.a1
 400 
	jnz	.a1
463 
	mov	dh, 0
 401 
	mov	dh, 0
464 
	inc	ch
 402 
	inc	ch
465 
	cmp	ch, 80
 403 
	cmp	ch, 80
466 
	jae	ok_sys_on_floppy
 404 
	jae	ok_sys_on_floppy
467 
	pusha
 - 
 
468 
	mov	al, ch
 405 
	mov	al, ch
469 
	shr	ch, 2
 406 
	shr	ch, 2
470 
	add	al, ch
 - 
 
471 
	aam
 - 
 
472 
	xchg	al, ah
 - 
 
473 
	add	ax, '00'
 - 
 
474 
	mov	si, pros
 - 
 
475 
	mov	[si], ax
 - 
 
476 
	call	printplain
 - 
 
477 
	popa
 - 
 
478 
	jmp	.a1
 407 
	jmp	.a1
479 
.nocd:
 408 
.nocd:
480 
; no - read only used sectors from floppy
 409 
; no - read only used sectors from floppy
481 
; now load floppy image to memory
 410 
; now load floppy image to memory
482 
; at first load boot sector and first FAT table
 411 
; at first load boot sector and first FAT table
Line 702... Line 631...
702 
	mul	cx
 631 
	mul	cx
703 
	div	di
 632 
	div	di
704 
	aam
 633 
	aam
705 
	xchg	al, ah
 634 
	xchg	al, ah
706 
	add	ax, '00'
 635 
	add	ax, '00'
707 
	mov	si, pros
 - 
 
708 
	cmp	[si], ax
 - 
 
709 
	jz	@f
 - 
 
710 
	mov	[si], ax
 - 
 
711 
	call	printplain
 - 
 
712 
@@:
 636 
@@:
713 
	popa
 637 
	popa
714 
	inc	di
 638 
	inc	di
715 
	cmp	di, word [end_of_FAT]	; max number of cluster
 639 
	cmp	di, word [end_of_FAT]	; max number of cluster
716 
	jnz	.read_loop
 640 
	jnz	.read_loop
717 
	pop	bx			; clear stack
 641 
	pop	bx			; clear stack
Line 718... Line 642...
718 
 
 642 
 
719 
ok_sys_on_floppy:
 - 
 
720 
	mov	si, backspace2
 - 
 
721 
	call	printplain
 - 
 
722 
	mov	si, okt
 - 
 
723 
	call	printplain
 643 
ok_sys_on_floppy:
724 
no_sys_on_floppy:
 644 
no_sys_on_floppy:
725 
	xor	ax, ax		; reset drive
 645 
	xor	ax, ax		; reset drive
726 
	xor	dx, dx
 646 
	xor	dx, dx
727 
	int	0x13
 647 
	int	0x13