newlib/libc/sys/h8300hms/crt0.S

   1 ; h8/300 and h8/300h start up file.
   2
   3 #include "setarch.h"
   4
   5 #ifdef __H8300__
   6
   7         .section .text
   8         .global _start
   9 _start:
  10         mov.w   #_stack,sp
  11         mov.w   #_edata,r0
  12         mov.w   #_end,r2
  13         sub.w   r1,r1
  14         sub.w   r0,r2
  15         jsr     @_memset
  16 #ifdef __ELF__
  17         mov.l   #__fini,r0
  18         jsr     @_atexit
  19 #ifdef __SIMULATOR__
  20         jsr     @0xcc
  21 #endif
  22         jsr     @__init
  23 #else
  24 #ifdef __SIMULATOR__
  25         jsr     @0xcc
  26 #endif
  27         jsr     @___main
  28 #endif
  29         jsr     @_main
  30         jsr     @_exit
  31
  32         .section .stack
  33 _stack: .word   1
  34
  35 #endif
  36
  37 #ifdef __H8300H__
  38
  39         .section .text
  40         .global _start
  41 _start:
  42         mov.l   #_stack,sp
  43         mov.l   #_edata,er0
  44         mov.l   #_end,er2
  45         sub.w   r1,r1
  46         sub.l   er0,er2
  47         jsr     @_memset
  48 #ifdef __ELF__
  49         mov.l   #__fini,er0
  50         jsr     @_atexit
  51 #ifdef __SIMULATOR__
  52         jsr     @0xcc
  53 #endif
  54         jsr     @__init
  55 #else
  56 #ifdef __SIMULATOR__
  57         jsr     @0xcc
  58 #endif
  59         jsr     @___main
  60 #endif
  61         jsr     @_main
  62         jsr     @_exit
  63
  64         .section .stack
  65 _stack: .long   1
  66
  67 #endif
  68
  69 #if defined (__H8300S__) || defined (__H8300SX__)
  70
  71         .section .text
  72         .global _start
  73 _start:
  74         mov.l   #_stack,sp
  75         mov.l   #_edata,er0
  76         mov.l   #_end,er2
  77         sub.w   r1,r1
  78         sub.l   er0,er2
  79         jsr     @_memset
  80 #ifdef __ELF__
  81         mov.l   #__fini,er0
  82         jsr     @_atexit
  83 #ifdef __SIMULATOR__
  84         jsr     @0xcc
  85 #endif
  86         jsr     @__init
  87 #else
  88 #ifdef __SIMULATOR__
  89         jsr     @0xcc
  90 #endif
  91         jsr     @___main
  92 #endif
  93         jsr     @_main
  94         jsr     @_exit
  95
  96         .section .stack
  97 _stack: .long   1
  98
  99 #endif