board_init.lst.svn-base

我们自己开发的一个OSEK操作系统！不知道可不可以？

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GAS LISTING /tmp/cckia4jx.s 			page 8


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GAS LISTING /tmp/cckia4jx.s 			page 9


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GAS LISTING /tmp/cckia4jx.s 			page 10


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 244              		.file 2 "BootloaderBsp/board.h"
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GAS LISTING /tmp/cckia4jx.s 			page 11


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GAS LISTING /tmp/cckia4jx.s 			page 12


 303 08a5 4346475F 		.string	"CFG_GBL_DATA_OFFSET ((CFG_INIT_RAM_END - CFG_INIT_RAM_ADDR) - CFG_GBL_DATA_SIZE)"
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GAS LISTING /tmp/cckia4jx.s 			page 13


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 328 09be 04       		.byte	0x4
 329              		.section	".text"
 330              		.align 2
 331              		.globl board_init_f
 332              		.type	board_init_f, @function
 333              	board_init_f:
 334              	.LFB2:
   1:BootloaderBsp/board_init.c **** #include "board.h"
   2:BootloaderBsp/board_init.c **** #include "OS_CPU.h"
   3:BootloaderBsp/board_init.c **** #include "board_mpc555.h"
   4:BootloaderBsp/board_init.c **** 
   5:BootloaderBsp/board_init.c **** /************************************************************************
   6:BootloaderBsp/board_init.c ****  *
   7:BootloaderBsp/board_init.c ****  * This is the first part of the initialization sequence that is
   8:BootloaderBsp/board_init.c ****  * implemented in C, but still running from ROM.
   9:BootloaderBsp/board_init.c ****  *
  10:BootloaderBsp/board_init.c ****  * The main purpose is to initialize the RAM so that we can 
  11:BootloaderBsp/board_init.c ****  * relocate the code to RAM.
  12:BootloaderBsp/board_init.c ****  *
  13:BootloaderBsp/board_init.c ****  * Be aware of the restrictions: global data is read-only, BSS is not
  14:BootloaderBsp/board_init.c ****  * initialized, and stack space is limited to a few kB.
  15:BootloaderBsp/board_init.c ****  *
  16:BootloaderBsp/board_init.c ****  ************************************************************************
  17:BootloaderBsp/board_init.c ****  */
  18:BootloaderBsp/board_init.c **** extern void relocate_code(int, int);
  19:BootloaderBsp/board_init.c **** 
  20:BootloaderBsp/board_init.c **** void board_init_f()
  21:BootloaderBsp/board_init.c **** {
 335              		.loc 1 21 0
 336 0000 9421FFE0 		stwu 1,-32(1)
 337              	.LCFI0:
 338 0004 7C0802A6 		mflr 0
 339              	.LCFI1:
 340 0008 93E1001C 		stw 31,28(1)
 341              	.LCFI2:
 342 000c 90010024 		stw 0,36(1)
 343              	.LCFI3:
 344 0010 7C3F0B78 		mr 31,1
 345              	.LCFI4:
  22:BootloaderBsp/board_init.c **** 	ULONG sp_addr;		/*stack pointer*/
  23:BootloaderBsp/board_init.c **** 	ULONG des_addr;			/*destination address of relocatable code*/
  24:BootloaderBsp/board_init.c **** 	ULONG s;
  25:BootloaderBsp/board_init.c **** 
  26:BootloaderBsp/board_init.c **** 	des_addr = CFG_SDRAM_BASE;
 346              		.loc 1 26 0
 347 0014 38000000 		li 0,0
 348 0018 901F000C 		stw 0,12(31)
  27:BootloaderBsp/board_init.c **** 	sp_addr = CFG_SDRAM_BASE + CFG_SDRAM_SIZE;		/*stack is in the high address of RAM*/
 349              		.loc 1 27 0
 350 001c 38000000 		li 0,0
 351 0020 901F0010 		stw 0,16(31)
  28:BootloaderBsp/board_init.c **** 
  29:BootloaderBsp/board_init.c **** 	sp_addr -= sizeof(bd_t);		/*some space reserved for board information*/
GAS LISTING /tmp/cckia4jx.s 			page 14


 352              		.loc 1 29 0
 353 0024 813F0010 		lwz 9,16(31)
 354 0028 3809FFCC 		addi 0,9,-52
 355 002c 901F0010 		stw 0,16(31)
  30:BootloaderBsp/board_init.c **** 	sp_addr &= ~(4096 - 1);		/*4kB reserved for other use*/
 356              		.loc 1 30 0
 357 0030 801F0010 		lwz 0,16(31)
 358 0034 54000026 		rlwinm 0,0,0,0,19
 359 0038 901F0010 		stw 0,16(31)
  31:BootloaderBsp/board_init.c **** 	
  32:BootloaderBsp/board_init.c **** 	/*
  33:BootloaderBsp/board_init.c **** 	 * Finally, we set up a new (bigger) stack.
  34:BootloaderBsp/board_init.c **** 	 *
  35:BootloaderBsp/board_init.c **** 	 * Leave some safety gap for SP, force alignment on 16 byte boundary
  36:BootloaderBsp/board_init.c **** 	 * Clear initial stack frame
  37:BootloaderBsp/board_init.c **** 	 */
  38:BootloaderBsp/board_init.c **** 	sp_addr -= 16;		
 360              		.loc 1 38 0
 361 003c 813F0010 		lwz 9,16(31)
 362 0040 3809FFF0 		addi 0,9,-16
 363 0044 901F0010 		stw 0,16(31)
  39:BootloaderBsp/board_init.c **** 	sp_addr &= ~0xF;		
 364              		.loc 1 39 0
 365 0048 801F0010 		lwz 0,16(31)
 366 004c 54000036 		rlwinm 0,0,0,0,27
 367 0050 901F0010 		stw 0,16(31)
  40:BootloaderBsp/board_init.c **** /*	s = (ULONG *)sp_addr;
  41:BootloaderBsp/board_init.c **** 	*(s--) = 0;
  42:BootloaderBsp/board_init.c **** 	*(s--) = 0;
  43:BootloaderBsp/board_init.c **** 	sp_addr = (ULONG)s;*/
  44:BootloaderBsp/board_init.c **** 
  45:BootloaderBsp/board_init.c **** 	relocate_code(sp_addr, des_addr);		/*it will not return from relocate_code*/
 368              		.loc 1 45 0
 369 0054 801F0010 		lwz 0,16(31)
 370 0058 813F000C 		lwz 9,12(31)