root/loader/ixus135_elph120/entry.S

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   1 .section .entry
   2 
   3     LDR     SP, =MEMBASEADDR
   4     BL      check_compat
   5 
   6 
   7 // SD card off stuff does not seem to be needed
   8 
   9 // for testing, blink AF LED 10 times at boot
  10 /*
  11         LDR     R3, =0xC0223030
  12         MOV             R1,#10
  13 2:
  14         MOV     R2, #0x46
  15         STR     R2, [R3]
  16         MOV     R0, #0x8000
  17 1:
  18         SUB R0,R0,#1
  19         CMP R0,#0
  20         BNE 1b
  21         MOV     R2, #0x44
  22         STR     R2, [R3]
  23         MOV     R0, #0x8000
  24 1:
  25         SUB R0,R0,#1
  26         CMP R0,#0
  27         BNE 1b
  28 
  29         SUB R1,R1,#1
  30         CMP R1,#0
  31         BNE 2b
  32 // ordinary startup...
  33 */
  34         MOV     SP, #0x1900
  35         MOV     R11, #0
  36         B       my_restart

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