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											2009-10-14 18:12:16 +08:00
										 |  |  | /* | 
					
						
							|  |  |  |  * This file is subject to the terms and conditions of the GNU General Public | 
					
						
							|  |  |  |  * License.  See the file "COPYING" in the main directory of this archive | 
					
						
							|  |  |  |  * for more details. | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  * Copyright (C) 1994, 1995 Waldorf Electronics | 
					
						
							|  |  |  |  * Written by Ralf Baechle and Andreas Busse | 
					
						
							|  |  |  |  * Copyright (C) 1995 - 1999 Ralf Baechle | 
					
						
							|  |  |  |  * Copyright (C) 1996 Paul M. Antoine | 
					
						
							|  |  |  |  * Modified for DECStation and hence R3000 support by Paul M. Antoine | 
					
						
							|  |  |  |  * Further modifications by David S. Miller and Harald Koerfgen | 
					
						
							|  |  |  |  * Copyright (C) 1999 Silicon Graphics, Inc. | 
					
						
							|  |  |  |  */ | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | #include <asm/asm.h> | 
					
						
							|  |  |  | #include <asm/regdef.h> | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	.set noreorder
 | 
					
						
							|  |  |  | 	.cprestore | 
					
						
							|  |  |  | 	LEAF(start) | 
					
						
							|  |  |  | start: | 
					
						
							|  |  |  | 	/* Save boot rom start args */ | 
					
						
							|  |  |  | 	move	s0, a0 | 
					
						
							|  |  |  | 	move	s1, a1 | 
					
						
							|  |  |  | 	move	s2, a2 | 
					
						
							|  |  |  | 	move	s3, a3 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	/* Clear BSS */ | 
					
						
							|  |  |  | 	PTR_LA	a0, _edata | 
					
						
							|  |  |  | 	PTR_LA	a2, _end | 
					
						
							|  |  |  | 1:	sw	zero, 0(a0) | 
					
						
							|  |  |  | 	bne	a2, a0, 1b | 
					
						
							|  |  |  | 	 addiu	a0, a0, 4 | 
					
						
							|  |  |  | 
 | 
					
						
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											2013-01-22 12:59:30 +01:00
										 |  |  | 	PTR_LA	a0, (.heap)	     /* heap address */ | 
					
						
							|  |  |  | 	PTR_LA	sp, (.stack + 8192)  /* stack address */ | 
					
						
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											2009-10-14 18:12:16 +08:00
										 |  |  | 
 | 
					
						
							|  |  |  | 	PTR_LA	ra, 2f | 
					
						
							|  |  |  | 	PTR_LA	k0, decompress_kernel | 
					
						
							|  |  |  | 	jr	k0 | 
					
						
							|  |  |  | 	 nop | 
					
						
							|  |  |  | 2: | 
					
						
							|  |  |  | 	move	a0, s0 | 
					
						
							|  |  |  | 	move	a1, s1 | 
					
						
							|  |  |  | 	move	a2, s2 | 
					
						
							|  |  |  | 	move	a3, s3 | 
					
						
							|  |  |  | 	PTR_LI	k0, KERNEL_ENTRY | 
					
						
							|  |  |  | 	jr	k0 | 
					
						
							|  |  |  | 	 nop | 
					
						
							|  |  |  | 3: | 
					
						
							|  |  |  | 	b	3b | 
					
						
							|  |  |  | 	 nop | 
					
						
							|  |  |  | 	END(start) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | 	.comm .heap,BOOT_HEAP_SIZE,4 | 
					
						
							|  |  |  | 	.comm .stack,4096*2,4 |