start.lst

Cortex-M4+example

     76              n = data_rom_end - data_rom;
   \   0000002E   0x1A80             SUBS     R0,R0,R2
   \   00000030   0xE003             B.N      ??common_startup_3
     77              while (n--)
     78                *data_ram++ = *data_rom++;
   \                     ??common_startup_4:
   \   00000032   0x7813             LDRB     R3,[R2, #+0]
   \   00000034   0x700B             STRB     R3,[R1, #+0]
   \   00000036   0x1C52             ADDS     R2,R2,#+1
   \   00000038   0x1C49             ADDS     R1,R1,#+1
   \                     ??common_startup_3:
   \   0000003A   0x0003             MOVS     R3,R0
   \   0000003C   0x1E58             SUBS     R0,R3,#+1
   \   0000003E   0x2B00             CMP      R3,#+0
   \   00000040   0xD1F7             BNE.N    ??common_startup_4
     79           
     80           
     81              /* Get the addresses for the .bss section (zero-initialized data) */
     82              uint8* bss_start = __section_begin(".bss");
   \   00000042   0x....             LDR.N    R1,??DataTable0_5
     83              uint8* bss_end = __section_end(".bss");
   \   00000044   0x....             LDR.N    R0,??DataTable0_6
     84              
     85              /* Clear the zero-initialized data section */
     86              n = bss_end - bss_start;
   \   00000046   0x1A40             SUBS     R0,R0,R1
   \   00000048   0xE002             B.N      ??common_startup_5
     87              while(n--)
     88                *bss_start++ = 0;    
   \                     ??common_startup_6:
   \   0000004A   0x2200             MOVS     R2,#+0
   \   0000004C   0x700A             STRB     R2,[R1, #+0]
   \   0000004E   0x1C49             ADDS     R1,R1,#+1
   \                     ??common_startup_5:
   \   00000050   0x0002             MOVS     R2,R0
   \   00000052   0x1E50             SUBS     R0,R2,#+1
   \   00000054   0x2A00             CMP      R2,#+0
   \   00000056   0xD1F8             BNE.N    ??common_startup_6
     89              
     90              /* Get addresses for any code sections that need to be copied from ROM to RAM.
     91               * The IAR tools have a predefined keyword that can be used to mark individual
     92               * functions for execution from RAM. Add "__ramfunc" before the return type in
     93               * the function prototype for any routines you need to execute from RAM instead 
     94               * of ROM. ex: __ramfunc void foo(void);
     95               */
     96              uint8* code_relocate_ram = __section_begin("CodeRelocateRam");
   \   00000058   0x....             LDR.N    R1,??DataTable0_7
     97              uint8* code_relocate = __section_begin("CodeRelocate");
   \   0000005A   0x....             LDR.N    R2,??DataTable0_8
     98              uint8* code_relocate_end = __section_end("CodeRelocate");
   \   0000005C   0x....             LDR.N    R0,??DataTable0_9
     99              
    100              /* Copy functions from ROM to RAM */
    101              n = code_relocate_end - code_relocate;
   \   0000005E   0x1A80             SUBS     R0,R0,R2
   \   00000060   0xE003             B.N      ??common_startup_7
    102              while (n--)
    103                *code_relocate_ram++ = *code_relocate++;
   \                     ??common_startup_8:
   \   00000062   0x7813             LDRB     R3,[R2, #+0]
   \   00000064   0x700B             STRB     R3,[R1, #+0]
   \   00000066   0x1C52             ADDS     R2,R2,#+1
   \   00000068   0x1C49             ADDS     R1,R1,#+1
   \                     ??common_startup_7:
   \   0000006A   0x0003             MOVS     R3,R0
   \   0000006C   0x1E58             SUBS     R0,R3,#+1
   \   0000006E   0x2B00             CMP      R3,#+0
   \   00000070   0xD1F7             BNE.N    ??common_startup_8
    104          }
   \   00000072   0xBD01             POP      {R0,PC}          ;; return

   \                                 In section .text, align 4, keep-with-next
   \                     ??DataTable0:
   \   00000000   0x........         DC32     __VECTOR_RAM

   \                                 In section .text, align 4, keep-with-next
   \                     ??DataTable0_1:
   \   00000000   0x........         DC32     __VECTOR_TABLE

   \                                 In section .text, align 4, keep-with-next
   \                     ??DataTable0_2:
   \   00000000   0x........         DC32     SFB(`.data`)

   \                                 In section .text, align 4, keep-with-next
   \                     ??DataTable0_3:
   \   00000000   0x........         DC32     SFB(`.data_init`)

   \                                 In section .text, align 4, keep-with-next
   \                     ??DataTable0_4:
   \   00000000   0x........         DC32     SFE(`.data_init`)

   \                                 In section .text, align 4, keep-with-next
   \                     ??DataTable0_5:
   \   00000000   0x........         DC32     SFB(`.bss`)

   \                                 In section .text, align 4, keep-with-next
   \                     ??DataTable0_6:
   \   00000000   0x........         DC32     SFE(`.bss`)

   \                                 In section .text, align 4, keep-with-next
   \                     ??DataTable0_7:
   \   00000000   0x........         DC32     SFB(CodeRelocateRam)

   \                                 In section .text, align 4, keep-with-next
   \                     ??DataTable0_8:
   \   00000000   0x........         DC32     SFB(CodeRelocate)

   \                                 In section .text, align 4, keep-with-next
   \                     ??DataTable0_9:
   \   00000000   0x........         DC32     SFE(CodeRelocate)

   Maximum stack usage in bytes:

   .cstack Function
   ------- --------
        8  common_startup
             8 -> write_vtor
        8  start
             8 -> common_startup
             8 -> main
             8 -> sysinit
             8 -> wdog_disable


   Section sizes:

   Bytes  Function/Label
   -----  --------------
       4  ??DataTable0
       4  ??DataTable0_1
       4  ??DataTable0_2
       4  ??DataTable0_3
       4  ??DataTable0_4
       4  ??DataTable0_5
       4  ??DataTable0_6
       4  ??DataTable0_7
       4  ??DataTable0_8
       4  ??DataTable0_9
     116  common_startup
      20  start

 
 176 bytes in section .text
 
 176 bytes of CODE memory

Errors: none
Warnings: none