ddma2.lst

au1200下的boot代码

 434 0240 00110200 		sll	$2,$2,4
 435 0244 21104300 		addu	$2,$2,$3
 436 0248 0000448C 		lw	$4,0($2)
 437 024c 00A0023C 		li	$2,-1610612736			# 0xffffffffa0000000
 438 0250 0800838C 		lw	$3,8($4)
 439 0254 21186200 		addu	$3,$3,$2
 148:/mnt/hgfs/boot/booter/source/ddma2.c **** }
 440              		.loc 1 148 0
 441 0258 0800E003 		j	$31
 442 025c 0000628C 		lw	$2,0($3)
 443              	
 444              		.set	macro
 445              		.set	reorder
 446              	$LFE15:
 447              		.end	ddma2_get_channel_status
 448              		.align	2
 449              		.globl	ddma2_enable_descriptor
 450              		.ent	ddma2_enable_descriptor
 451              		.type	ddma2_enable_descriptor, @function
 452              	ddma2_enable_descriptor:
 453              	$LFB16:
 149:/mnt/hgfs/boot/booter/source/ddma2.c **** 
 150:/mnt/hgfs/boot/booter/source/ddma2.c **** int ddma2_enable_descriptor(DDMA_DESCRIPTOR* ddma_desc, int enable)
 151:/mnt/hgfs/boot/booter/source/ddma2.c **** {
 454              		.loc 1 151 0
 455              		.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
 456              		.mask	0x00000000,0
 457              		.fmask	0x00000000,0
 458              		.set	noreorder
 459              		.set	nomacro
 460              		
 152:/mnt/hgfs/boot/booter/source/ddma2.c **** 	if(enable)
 461              		.loc 1 152 0
 462 0260 0700A010 		beq	$5,$0,$L24
 463 0264 00000000 		nop
 464              	
 153:/mnt/hgfs/boot/booter/source/ddma2.c **** 		ddma_desc->u.std.cmd0 |= DDMA_DESCCMD_V;	//Enable valid bit
 465              		.loc 1 153 0
 466 0268 0000838C 		lw	$3,0($4)
 467 026c 0080023C 		li	$2,-2147483648			# 0xffffffff80000000
 468 0270 25186200 		or	$3,$3,$2
 469 0274 000083AC 		sw	$3,0($4)
GAS LISTING /tmp/ccSUImwK.s 			page 12


 470 0278 0800E003 		j	$31
 471 027c 00000000 		nop
 472              	
 473              	$L24:
 154:/mnt/hgfs/boot/booter/source/ddma2.c **** 	else
 155:/mnt/hgfs/boot/booter/source/ddma2.c **** 		ddma_desc->u.std.cmd0 &= ~DDMA_DESCCMD_V;	//Disable valid bit
 474              		.loc 1 155 0
 475 0280 0000838C 		lw	$3,0($4)
 476 0284 FF7F023C 		li	$2,2147418112			# 0x7fff0000
 477 0288 FFFF4234 		ori	$2,$2,0xffff
 478 028c 24186200 		and	$3,$3,$2
 479 0290 000083AC 		sw	$3,0($4)
 156:/mnt/hgfs/boot/booter/source/ddma2.c **** }
 480              		.loc 1 156 0
 481 0294 0800E003 		j	$31
 482 0298 00000000 		nop
 483              	
 484              		.set	macro
 485              		.set	reorder
 486              	$LFE16:
 487              		.end	ddma2_enable_descriptor
 488              		.align	2
 489              		.globl	ddma2_insert_descriptor
 490              		.ent	ddma2_insert_descriptor
 491              		.type	ddma2_insert_descriptor, @function
 492              	ddma2_insert_descriptor:
 493              	$LFB17:
 157:/mnt/hgfs/boot/booter/source/ddma2.c **** 
 158:/mnt/hgfs/boot/booter/source/ddma2.c **** int ddma2_insert_descriptor(CHANNEL_ID id, DDMA_DESCRIPTOR* ddma_desc)
 159:/mnt/hgfs/boot/booter/source/ddma2.c **** {
 494              		.loc 1 159 0
 495              		.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
 496              		.mask	0x00000000,0
 497              		.fmask	0x00000000,0
 498              		.set	noreorder
 499              		.set	nomacro
 500              		
 160:/mnt/hgfs/boot/booter/source/ddma2.c **** 	if(ddma_desc)
 161:/mnt/hgfs/boot/booter/source/ddma2.c **** 	{
 162:/mnt/hgfs/boot/booter/source/ddma2.c **** 		//Point this descriptor back to itself
 163:/mnt/hgfs/boot/booter/source/ddma2.c **** 		ddma_desc->u.std.nxt_ptr = (ddma_desc->u.std.nxt_ptr & ~(0x07FFFFFF))	//mask off existing next po
 501              		.loc 1 163 0
 502 029c FF5F023C 		li	$2,1610547200			# 0x5fff0000
 503 02a0 FFFF4234 		ori	$2,$2,0xffff
 164:/mnt/hgfs/boot/booter/source/ddma2.c **** 								 | VIRT_TO_NXTPTR(ddma_desc);		//Or in next pointer to current descriptor
 165:/mnt/hgfs/boot/booter/source/ddma2.c **** 
 166:/mnt/hgfs/boot/booter/source/ddma2.c **** 		ddma_desc->u.std.cmd0 |= DDMA_DESCCMD_V;					//set valid
 167:/mnt/hgfs/boot/booter/source/ddma2.c **** 
 168:/mnt/hgfs/boot/booter/source/ddma2.c **** 		ddma2_irq_lock(id);
 169:/mnt/hgfs/boot/booter/source/ddma2.c **** 		if(channels[id].d_tail == NULL)
 504              		.loc 1 169 0
 505 02a4 40180400 		sll	$3,$4,1
 506              		.loc 1 163 0
 507 02a8 2438A200 		and	$7,$5,$2
 508              		.loc 1 169 0
 509 02ac 21186400 		addu	$3,$3,$4
 510 02b0 0000023C 		lui	$2,%hi(channels)
GAS LISTING /tmp/ccSUImwK.s 			page 13


 511 02b4 00004224 		addiu	$2,$2,%lo(channels)
 512 02b8 00190300 		sll	$3,$3,4
 513 02bc 21206200 		addu	$4,$3,$2
 514              		.loc 1 163 0
 515 02c0 00F8083C 		li	$8,-134217728			# 0xfffffffff8000000
 516 02c4 42310700 		srl	$6,$7,5
 170:/mnt/hgfs/boot/booter/source/ddma2.c **** 		{	//List is empty, insert the descriptor
 171:/mnt/hgfs/boot/booter/source/ddma2.c **** 			channels[id].d_head = ddma_desc;
 172:/mnt/hgfs/boot/booter/source/ddma2.c **** 			channels[id].d_tail = ddma_desc;
 173:/mnt/hgfs/boot/booter/source/ddma2.c **** 
 174:/mnt/hgfs/boot/booter/source/ddma2.c **** 			channels[id].ptr->des_ptr = CPHYSADDR(ddma_desc);
 175:/mnt/hgfs/boot/booter/source/ddma2.c **** 		}
 176:/mnt/hgfs/boot/booter/source/ddma2.c **** 		else
 177:/mnt/hgfs/boot/booter/source/ddma2.c **** 		{	//Insert descriptor at end of list
 178:/mnt/hgfs/boot/booter/source/ddma2.c **** 			channels[id].d_tail->u.std.nxt_ptr  = (channels[id].d_tail->u.std.nxt_ptr & ~(0x07FFFFFF))	//mas
 179:/mnt/hgfs/boot/booter/source/ddma2.c **** 												| VIRT_TO_NXTPTR(ddma_desc);	//Or in next pointer to current descriptor
 180:/mnt/hgfs/boot/booter/source/ddma2.c **** 			channels[id].d_tail = ddma_desc;
 181:/mnt/hgfs/boot/booter/source/ddma2.c **** 		}
 182:/mnt/hgfs/boot/booter/source/ddma2.c **** 		ddma2_irq_unlock(id);
 183:/mnt/hgfs/boot/booter/source/ddma2.c **** 
 184:/mnt/hgfs/boot/booter/source/ddma2.c **** 		//au1550_ddma2_enable_channel(id);
 185:/mnt/hgfs/boot/booter/source/ddma2.c **** 
 186:/mnt/hgfs/boot/booter/source/ddma2.c **** 		return 1;
 187:/mnt/hgfs/boot/booter/source/ddma2.c **** 	}
 188:/mnt/hgfs/boot/booter/source/ddma2.c **** 
 189:/mnt/hgfs/boot/booter/source/ddma2.c **** 	return 0;
 517              		.loc 1 189 0
 518              		.loc 1 160 0
 519 02c8 1100A010 		beq	$5,$0,$L32
 520 02cc 21100000 		move	$2,$0
 521              	
 522              		.loc 1 163 0
 523 02d0 1C00A28C 		lw	$2,28($5)
 524 02d4 24104800 		and	$2,$2,$8
 525 02d8 25104600 		or	$2,$2,$6
 526 02dc 1C00A2AC 		sw	$2,28($5)
 527              		.loc 1 166 0
 528 02e0 0000A38C 		lw	$3,0($5)
 529 02e4 0080023C 		li	$2,-2147483648			# 0xffffffff80000000
 530 02e8 25186200 		or	$3,$3,$2
 531 02ec 0000A3AC 		sw	$3,0($5)
 532              		.loc 1 169 0
 533 02f0 1000838C 		lw	$3,16($4)
 534 02f4 08006014 		bne	$3,$0,$L29
 535 02f8 00000000 		nop
 536              	
 537              		.loc 1 174 0
 538 02fc 0000828C 		lw	$2,0($4)
 539              		.loc 1 172 0
 540 0300 100085AC 		sw	$5,16($4)
 541              		.loc 1 171 0
 542 0304 0C0085AC 		sw	$5,12($4)
 543              		.loc 1 174 0
 544 0308 040047AC 		sw	$7,4($2)
 545              		.loc 1 186 0
 546 030c 01000224 		li	$2,1			# 0x1
 547              	$L32:
GAS LISTING /tmp/ccSUImwK.s 			page 14


 190:/mnt/hgfs/boot/booter/source/ddma2.c **** }
 548              		.loc 1 190 0
 549 0310 0800E003 		j	$31
 550 0314 00000000 		nop
 551              	
 552              	$L29:
 553              		.loc 1 178 0
 554 0318 1C00628C 		lw	$2,28($3)
 555 031c 24104800 		and	$2,$2,$8
 556 0320 25104600 		or	$2,$2,$6
 557 0324 1C0062AC 		sw	$2,28($3)
 558              		.loc 1 186 0
 559 0328 01000224 		li	$2,1			# 0x1
 560              		.loc 1 180 0
 561 032c 0800E003 		j	$31
 562 0330 100085AC 		sw	$5,16($4)
 563              	
 564              		.set	macro
 565              		.set	reorder
 566              	$LFE17:
 567              		.end	ddma2_insert_descriptor
 568              		.section	.rodata.str1.4,"aMS",@progbits,1
 569              		.align	2
 570              	$LC0:
 571 0000 4368616E 		.ascii	"Channel %d Descriptor Chain:\n\000"
 571      6E656C20 
 571      25642044 
 571      65736372 
 571      6970746F 
 572 001e 0000     		.align	2
 573              	$LC2:
 574 0020 255800   		.ascii	"%X\000"
 575 0023 00       		.align	2
 576              	$LC1:
 577 0024 202D3E20 		.ascii	" -> \000"
 577      00
 578 0029 000000   		.align	2
 579              	$LC3:
 580 002c 0A00     		.ascii	"\n\000"
 581 002e 0000     		.text
 582              		.align	2
 583              		.globl	ddma2_print_descriptor_chain
 584              		.ent	ddma2_print_descriptor_chain
 585              		.type	ddma2_print_descriptor_chain, @function
 586              	ddma2_print_descriptor_chain:
 587              	$LFB18:
 191:/mnt/hgfs/boot/booter/source/ddma2.c **** 
 192:/mnt/hgfs/boot/booter/source/ddma2.c **** void ddma2_print_descriptor_chain(CHANNEL_ID id)
 193:/mnt/hgfs/boot/booter/source/ddma2.c **** {
 588              		.loc 1 193 0
 589              		.frame	$sp,40,$31		# vars= 0, regs= 6/0, args= 16, gp= 0
 590              		.mask	0x801f0000,-4
 591              		.fmask	0x00000000,0
 592              		.set	noreorder
 593              		.set	nomacro
 594              		
 595 0334 D8FFBD27 		addiu	$sp,$sp,-40
GAS LISTING /tmp/ccSUImwK.s 			page 15


 596              	$LCFI8:
 597 0338 1000B0AF 		sw	$16,16($sp)
 598              	$LCFI9:
 599 033c 21808000 		move	$16,$4
 194:/mnt/hgfs/boot/booter/source/ddma2.c **** 	DDMA_DESCRIPTOR* dsc;
 195:/mnt/hgfs/boot/booter/source/ddma2.c **** 	printf("Channel %d Descriptor Chain:\n", id);
 600              		.loc 1 195 0
 601 0340 0000043C 		lui	$4,%hi($LC0)
 602 0344 21280002 		move	$5,$16
 603              		.loc 1 193 0
 604 0348 2000B4AF 		sw	$20,32($sp)
 605              	$LCFI10:
 606 034c 1C00B3AF 		sw	$19,28($sp)
 607              	$LCFI11:
 608 0350 1800B2AF 		sw	$18,24($sp)
 609              	$LCFI12:
 610 0354 1400B1AF 		sw	$17,20($sp)
 611              	$LCFI13:
 612 0358 2400BFAF 		sw	$31,36($sp)
 613              	$LCFI14:
 614              		.loc 1 195 0
 615 035c 0000000C 		jal	printf
 616 0360 00008424 		addiu	$4,$4,%lo($LC0)
 617              	
 618 0364 40181000 		sll	$3,$16,1
 619 0368 21187000 		addu	$3,$3,$16
 620 036c 0000023C 		lui	$2,%hi(channels)
 621 0370 00190300 		sll	$3,$3,4
 622 0374 00004224 		addiu	$2,$2,%lo(channels)
 623 0378 21A06200 		addu	$20,$3,$2
 196:/mnt/hgfs/boot/booter/source/ddma2.c **** 	dsc = 0;
 624              		.loc 1 196 0
 625 037c 21800000 		move	$16,$0
 626 0380 0000133C 		lui	$19,%hi($LC2)
 627 0384 00A0113C 		li	$17,-1610612736			# 0xffffffffa0000000
 628 0388 F0000008 		j	$L34
 629 038c 0000123C 		lui	$18,%hi($LC1)
 630              	
 631              	$L37:
 197:/mnt/hgfs/boot/booter/source/ddma2.c **** 	do
 198:/mnt/hgfs/boot/booter/source/ddma2.c **** 	{
 199:/mnt/hgfs/boot/booter/source/ddma2.c **** 		if(dsc == 0)
 200:/mnt/hgfs/boot/booter/source/ddma2.c **** 			dsc = channels[id].d_head;
 201:/mnt/hgfs/boot/booter/source/ddma2.c **** 		else
 202:/mnt/hgfs/boot/booter/source/ddma2.c **** 		{
 203:/mnt/hgfs/boot/booter/source/ddma2.c **** 			dsc = (DDMA_DESCRIPTOR*) KSEG1(NXTPTR_TO_PHYS(dsc->u.std.nxt_ptr));
 632              		.loc 1 203 0
 633 0390 1C00028E 		lw	$2,28($16)
 634 0394 40110200 		sll	$2,$2,5
 204:/mnt/hgfs/boot/booter/source/ddma2.c **** 			printf(" -> ");
 635              		.loc 1 204 0
 636 0398 0000000C 		jal	printf
 637 039c 21805100 		addu	$16,$2,$17
 638              	
 205:/mnt/hgfs/boot/booter/source/ddma2.c **** 		}
 206:/mnt/hgfs/boot/booter/source/ddma2.c **** 
 207:/mnt/hgfs/boot/booter/source/ddma2.c **** 		printf("%X", dsc);
GAS LISTING /tmp/ccSUImwK.s 			page 16


 639              		.loc 1 207 0
 640 03a0 00006426 		addiu	$4,$19,%lo($LC2)
 641 03a4 0000000C 		jal	printf
 642 03a8 21280002 		move	$5,$16
 643              	
 208:/mnt/hgfs/boot/booter/source/ddma2.c **** 	} while(KSEG1(NXTPTR_TO_PHYS(dsc->u.std.nxt_ptr)) != (uint32) dsc);
 644              		.loc 1 208 0
 645 03ac 1C00028E 		lw	$2,28($16)
 646 03b0 40110200 		sll	$2,$2,5
 647 03b4 21105100 		addu	$2,$2,$17
 209:/mnt/hgfs/boot/booter/source/ddma2.c **** 
 210:/mnt/hgfs/boot/booter/source/ddma2.c **** 	printf("\n");
 648              		.loc 1 210 0
 649              		.loc 1 208 0
 650 03b8 0C005010 		beq	$2,$16,$L40
 651 03bc 0000043C 		lui	$4,%hi($LC3)
 652              	
 653              	$L34:
 654              		.loc 1 204 0
 655              		.loc 1 199 0
 656 03c0 F3FF0016 		bne	$16,$0,$L37
 657 03c4 00004426 		addiu	$4,$18,%lo($LC1)
 658              	
 659              		.loc 1 200 0