packages/services/diagnosis/v2_0/src/memory/routine.S

   1         .text
   2 /*
   3  * void diagnosis_mem_read_block(unsigned long start, int size)
   4  */
   5         .global diagnosis_mem_read_block
   6 diagnosis_mem_read_block:
   7         stmdb sp!, {r2 - r9}
   8         add r1, r1, r0
   9 1:      cmp r0, r1
  10         ldmloia r0!, {r2-r9}
  11         blo 1b
  12         ldmia sp!, {r2 - r9}
  13         mov pc, lr
  14 /*
  15  * void diagnosis_mem_write_block(unsigned long start, int size)
  16  */
  17         .global diagnosis_mem_write_block
  18 diagnosis_mem_write_block:
  19         stmdb sp!, {r2 - r9}
  20         add r1, r1, r0
  21 1:      cmp r0, r1
  22         stmloia r0!, {r2 - r9}
  23         blo 1b
  24         ldmia sp!, {r2 - r9}
  25         mov pc, lr
  26 /*
  27  * int diagnosis_mem_copy_block(unsigned long start, unsigned long dest, int size)
  28  */
  29         .global diagnosis_mem_copy_block
  30 diagnosis_mem_copy_block:
  31         stmdb sp!, {r3 - r11}
  32         stmdb sp!, {r0, r1}
  33         add r11, r1, r2
  34 1:      cmp r1, r11
  35         ldmloia r0!, {r3-r10}
  36         stmloia r1!, {r3-r10}
  37         blo 1b
  38         ldmia sp!, {r0, r1}
  39 1:      cmp r1, r11
  40         movhs r0, #0
  41         bhs 2f
  42         ldrlo r3, [r0], #4
  43         ldrlo r4, [r1], #4
  44         cmp r3, r4
  45         beq 1b
  46         mov r0, #-1
  47 2:      ldmia sp!, {r3 - r11}
  48         mov pc, lr