irq.lst

au1200下的boot代码

 564              	
 565              	$LBE21:
 566              		.loc 1 494 0
 567 032c 0000023C 		lui	$2,%hi(irqDispatch)
 568              	$L76:
 569 0330 80181000 		sll	$3,$16,2
 570 0334 00004224 		addiu	$2,$2,%lo(irqDispatch)
 571 0338 21186200 		addu	$3,$3,$2
 572 033c C2000008 		j	$L56
 573 0340 000060AC 		sw	$0,0($3)
 574              	
 575              	$L66:
 576              	$LBB22:
 577              		.loc 1 478 0
 578 0344 D8FF0326 		addiu	$3,$16,-40
 579              		.loc 1 480 0
GAS LISTING /tmp/ccsUu95n.s 			page 20


 580 0348 04186400 		sll	$3,$4,$3
 581              		.loc 1 483 0
 582 034c 540043AC 		sw	$3,84($2)
 583              		.loc 1 484 0
 584 0350 4C0043AC 		sw	$3,76($2)
 585              		.loc 1 485 0
 586 0354 440043AC 		sw	$3,68($2)
 587              		.loc 1 488 0
 588 0358 740043AC 		sw	$3,116($2)
 589              		.loc 1 491 0
 590 035c 6C0043AC 		sw	$3,108($2)
 591              		.loc 1 494 0
 592 0360 BE000008 		j	$L75
 593 0364 0000023C 		lui	$2,%hi(irqDispatch)
 594              	
 595              	$L71:
 596              	$LBE22:
 597              	$LBB23:
 598              		.loc 1 432 0
 599 0368 0000000C 		jal	cp0RdStatus
 600 036c 00000000 		nop
 601              	
 602              		.loc 1 434 0
 603 0370 FFFD0424 		li	$4,-513			# 0xfffffffffffffdff
 604              	$LBE23:
 605              	$LBB24:
 606              		.loc 1 450 0
 607 0374 0000000C 		jal	cp0WrStatus
 608 0378 24204400 		and	$4,$2,$4
 609              	
 610              		.loc 1 494 0
 611 037c CC000008 		j	$L76
 612 0380 0000023C 		lui	$2,%hi(irqDispatch)
 613              	
 614              	$L72:
 615              	$LBE24:
 616              	$LBB25:
 617              		.loc 1 440 0
 618 0384 0000000C 		jal	cp0RdStatus
 619 0388 00000000 		nop
 620              	
 621              		.loc 1 442 0
 622 038c FFBF0424 		li	$4,-16385			# 0xffffffffffffbfff
 623              	$LBE25:
 624              	$LBB26:
 625              		.loc 1 450 0
 626 0390 0000000C 		jal	cp0WrStatus
 627 0394 24204400 		and	$4,$2,$4
 628              	
 629              		.loc 1 494 0
 630 0398 CC000008 		j	$L76
 631 039c 0000023C 		lui	$2,%hi(irqDispatch)
 632              	
 633              	$L73:
 634              		.loc 1 448 0
 635 03a0 0000000C 		jal	cp0RdStatus
 636 03a4 00000000 		nop
GAS LISTING /tmp/ccsUu95n.s 			page 21


 637              	
 638              		.loc 1 450 0
 639 03a8 FFFF043C 		li	$4,-65536			# 0xffffffffffff0000
 640 03ac FF7F8434 		ori	$4,$4,0x7fff
 641 03b0 0000000C 		jal	cp0WrStatus
 642 03b4 24204400 		and	$4,$2,$4
 643              	
 644              		.loc 1 494 0
 645 03b8 CC000008 		j	$L76
 646 03bc 0000023C 		lui	$2,%hi(irqDispatch)
 647              	
 648              	$LBE26:
 649              		.set	macro
 650              		.set	reorder
 651              	$LFE3:
 652              		.end	cpuIrqDisable
 653              		.align	2
 654              		.globl	cpuIrqInit
 655              		.ent	cpuIrqInit
 656              		.type	cpuIrqInit, @function
 657              	cpuIrqInit:
 658              	$LFB4:
 496:/mnt/hgfs/boot/booter/source/irq.c **** 
 497:/mnt/hgfs/boot/booter/source/irq.c **** /********************************************************************/
 498:/mnt/hgfs/boot/booter/source/irq.c **** void
 499:/mnt/hgfs/boot/booter/source/irq.c **** cpuIrqInit (void)
 500:/mnt/hgfs/boot/booter/source/irq.c **** {
 659              		.loc 1 500 0
 660              		.frame	$sp,24,$31		# vars= 0, regs= 1/0, args= 16, gp= 0
 661              		.mask	0x80000000,-8
 662              		.fmask	0x00000000,0
 663              		.set	noreorder
 664              		.set	nomacro
 665              		
 501:/mnt/hgfs/boot/booter/source/irq.c **** 	extern uint32 asmIrqHandler[];
 502:/mnt/hgfs/boot/booter/source/irq.c **** 	extern uint32 asmIrqHandlerEnd[];
 503:/mnt/hgfs/boot/booter/source/irq.c **** 
 504:/mnt/hgfs/boot/booter/source/irq.c **** 	uint32 *v = (uint32 *)0x80000200;
 666              		.loc 1 504 0
 667 03c0 0080023C 		li	$2,-2147483648			# 0xffffffff80000000
 668              		.loc 1 500 0
 669 03c4 E8FFBD27 		addiu	$sp,$sp,-24
 670              	$LCFI9:
 671              		.loc 1 504 0
 672 03c8 00024834 		ori	$8,$2,0x200
 673 03cc 0000033C 		lui	$3,%hi(irqDispatch)
 674 03d0 0000023C 		lui	$2,%hi(irqArgument)
 675              		.loc 1 500 0
 676 03d4 1000BFAF 		sw	$31,16($sp)
 677              	$LCFI10:
 678 03d8 00006724 		addiu	$7,$3,%lo(irqDispatch)
 679 03dc 20014624 		addiu	$6,$2,%lo(irqArgument)
 505:/mnt/hgfs/boot/booter/source/irq.c **** 	uint32 *p, *q;
 506:/mnt/hgfs/boot/booter/source/irq.c **** 	int irq;
 507:/mnt/hgfs/boot/booter/source/irq.c **** 
 508:/mnt/hgfs/boot/booter/source/irq.c **** 	/*
 509:/mnt/hgfs/boot/booter/source/irq.c **** 	 * NULL dispatch table
GAS LISTING /tmp/ccsUu95n.s 			page 22


 510:/mnt/hgfs/boot/booter/source/irq.c **** 	 */
 511:/mnt/hgfs/boot/booter/source/irq.c **** 	for (irq = 0; irq < 64; ++irq)
 680              		.loc 1 511 0
 681 03e0 21280000 		move	$5,$0
 682              	$L81:
 512:/mnt/hgfs/boot/booter/source/irq.c **** 	{
 513:/mnt/hgfs/boot/booter/source/irq.c **** 		irqDispatch[irq] = NULL;
 683              		.loc 1 513 0
 684 03e4 80100500 		sll	$2,$5,2
 685              		.loc 1 511 0
 686 03e8 0100A524 		addiu	$5,$5,1
 514:/mnt/hgfs/boot/booter/source/irq.c **** 		irqArgument[irq] = NULL;
 687              		.loc 1 514 0
 688 03ec 21204600 		addu	$4,$2,$6
 689              		.loc 1 511 0
 690 03f0 4000A328 		slt	$3,$5,64
 691              		.loc 1 513 0
 692 03f4 21104700 		addu	$2,$2,$7
 693 03f8 000040AC 		sw	$0,0($2)
 694              		.loc 1 514 0
 695              		.loc 1 511 0
 696 03fc F9FF6014 		bne	$3,$0,$L81
 697 0400 000080AC 		sw	$0,0($4)
 698              	
 515:/mnt/hgfs/boot/booter/source/irq.c **** 	}
 516:/mnt/hgfs/boot/booter/source/irq.c **** 
 517:/mnt/hgfs/boot/booter/source/irq.c **** 	/*
 518:/mnt/hgfs/boot/booter/source/irq.c **** 	 * Install simple IRQ handler.
 519:/mnt/hgfs/boot/booter/source/irq.c **** 	 */
 520:/mnt/hgfs/boot/booter/source/irq.c **** 	p = asmIrqHandler;
 699              		.loc 1 520 0
 700 0404 0000023C 		lui	$2,%hi(asmIrqHandler)
 521:/mnt/hgfs/boot/booter/source/irq.c **** 	q = asmIrqHandlerEnd;
 701              		.loc 1 521 0
 702 0408 0000033C 		lui	$3,%hi(asmIrqHandlerEnd)
 703              		.loc 1 520 0
 704 040c 00004424 		addiu	$4,$2,%lo(asmIrqHandler)
 705              		.loc 1 521 0
 706 0410 00006524 		addiu	$5,$3,%lo(asmIrqHandlerEnd)
 707              	$L82:
 522:/mnt/hgfs/boot/booter/source/irq.c **** 	do
 523:/mnt/hgfs/boot/booter/source/irq.c **** 	{
 524:/mnt/hgfs/boot/booter/source/irq.c **** 		*v++ = *p++;
 708              		.loc 1 524 0
 709 0414 0000828C 		lw	$2,0($4)
 710 0418 04008424 		addiu	$4,$4,4
 525:/mnt/hgfs/boot/booter/source/irq.c **** 	} while (p < q);
 711              		.loc 1 525 0
 712 041c 2B188500 		sltu	$3,$4,$5
 713              		.loc 1 524 0
 714 0420 000002AD 		sw	$2,0($8)
 715              		.loc 1 525 0
 716 0424 FBFF6014 		bne	$3,$0,$L82
 717 0428 04000825 		addiu	$8,$8,4
 718              	
 526:/mnt/hgfs/boot/booter/source/irq.c **** 	dcacheFlush();
 719              		.loc 1 526 0
GAS LISTING /tmp/ccsUu95n.s 			page 23


 720 042c 0000000C 		jal	dcacheFlush
 721 0430 00000000 		nop
 722              	
 527:/mnt/hgfs/boot/booter/source/irq.c **** 	icacheFlush();
 723              		.loc 1 527 0
 724 0434 0000000C 		jal	icacheFlush
 725 0438 00000000 		nop
 726              	
 528:/mnt/hgfs/boot/booter/source/irq.c **** 
 529:/mnt/hgfs/boot/booter/source/irq.c **** 	/*
 530:/mnt/hgfs/boot/booter/source/irq.c **** 	 * Point Status[BEV] into RAM at 0x80000000
 531:/mnt/hgfs/boot/booter/source/irq.c **** 	 */
 532:/mnt/hgfs/boot/booter/source/irq.c **** 	cp0WrStatus(cp0RdStatus() & ~STATUS_BEV);
 727              		.loc 1 532 0
 728 043c 0000000C 		jal	cp0RdStatus
 729 0440 00000000 		nop
 730              	
 731 0444 BFFF043C 		li	$4,-4259840			# 0xffffffffffbf0000
 732 0448 FFFF8434 		ori	$4,$4,0xffff
 733 044c 0000000C 		jal	cp0WrStatus
 734 0450 24204400 		and	$4,$2,$4
 735              	
 533:/mnt/hgfs/boot/booter/source/irq.c **** 
 534:/mnt/hgfs/boot/booter/source/irq.c **** 	/*
 535:/mnt/hgfs/boot/booter/source/irq.c **** 	 * Point interrupt vector to 0x80000200
 536:/mnt/hgfs/boot/booter/source/irq.c **** 	 */
 537:/mnt/hgfs/boot/booter/source/irq.c **** 	cp0WrCause(cp0RdCause() | CAUSE_IV);
 736              		.loc 1 537 0
 737 0454 0000000C 		jal	cp0RdCause
 738 0458 00000000 		nop
 739              	
 740 045c 8000043C 		li	$4,8388608			# 0x800000
 741 0460 0000000C 		jal	cp0WrCause
 742 0464 25204400 		or	$4,$2,$4
 743              	
 538:/mnt/hgfs/boot/booter/source/irq.c **** 
 539:/mnt/hgfs/boot/booter/source/irq.c **** 	/*
 540:/mnt/hgfs/boot/booter/source/irq.c **** 	 * Set IC0 to known state (no IRQs allowed)
 541:/mnt/hgfs/boot/booter/source/irq.c **** 	 */
 542:/mnt/hgfs/boot/booter/source/irq.c **** 	
 543:/mnt/hgfs/boot/booter/source/irq.c **** 	/* config[012]: interrupts disabled */
 544:/mnt/hgfs/boot/booter/source/irq.c **** 	ic0->cfg0clr = ~0;
 545:/mnt/hgfs/boot/booter/source/irq.c **** 	ic0->cfg1clr = ~0;
 546:/mnt/hgfs/boot/booter/source/irq.c **** 	ic0->cfg2clr = ~0;
 547:/mnt/hgfs/boot/booter/source/irq.c **** 
 548:/mnt/hgfs/boot/booter/source/irq.c **** 	/* source_set: Irq fro peripheral signal */
 549:/mnt/hgfs/boot/booter/source/irq.c **** 	ic0->srcset = ~0;
 550:/mnt/hgfs/boot/booter/source/irq.c **** 
 551:/mnt/hgfs/boot/booter/source/irq.c **** 	/* assign_request: Irq onto request 0 */
 552:/mnt/hgfs/boot/booter/source/irq.c **** 	ic0->assignset = ~0;
 553:/mnt/hgfs/boot/booter/source/irq.c **** 
 554:/mnt/hgfs/boot/booter/source/irq.c **** 	/* mask: all irqs asked off */
 555:/mnt/hgfs/boot/booter/source/irq.c **** 	ic0->maskclr = ~0;
 556:/mnt/hgfs/boot/booter/source/irq.c **** 
 557:/mnt/hgfs/boot/booter/source/irq.c **** 	/* wakeup: no irqs wakeup */
 558:/mnt/hgfs/boot/booter/source/irq.c **** 	ic0->wakeclr = ~0;
 559:/mnt/hgfs/boot/booter/source/irq.c **** 
GAS LISTING /tmp/ccsUu95n.s 			page 24


 560:/mnt/hgfs/boot/booter/source/irq.c **** 	/* rising_edge: ack all previous irqs */
 561:/mnt/hgfs/boot/booter/source/irq.c **** 	ic0->risingclr = ~0;
 562:/mnt/hgfs/boot/booter/source/irq.c **** 
 563:/mnt/hgfs/boot/booter/source/irq.c **** 	/* falling_edge: ack all previous irqs */
 564:/mnt/hgfs/boot/booter/source/irq.c **** 	ic0->fallingclr = ~0;
 565:/mnt/hgfs/boot/booter/source/irq.c **** 
 566:/mnt/hgfs/boot/booter/source/irq.c **** 
 567:/mnt/hgfs/boot/booter/source/irq.c **** 	/*
 568:/mnt/hgfs/boot/booter/source/irq.c **** 	 * Set IC1 to known state (no IRQs allowed)
 569:/mnt/hgfs/boot/booter/source/irq.c **** 	 */
 570:/mnt/hgfs/boot/booter/source/irq.c **** 
 571:/mnt/hgfs/boot/booter/source/irq.c **** 	/* config[012]: interrupts disabled */
 572:/mnt/hgfs/boot/booter/source/irq.c **** 	ic1->cfg0clr = ~0;
 573:/mnt/hgfs/boot/booter/source/irq.c **** 	ic1->cfg1clr = ~0;
 574:/mnt/hgfs/boot/booter/source/irq.c **** 	ic1->cfg2clr = ~0;
 575:/mnt/hgfs/boot/booter/source/irq.c **** 
 576:/mnt/hgfs/boot/booter/source/irq.c **** 	/* source_set: Irq fro peripheral signal */
 577:/mnt/hgfs/boot/booter/source/irq.c **** 	ic1->srcset = ~0;
 578:/mnt/hgfs/boot/booter/sou