gnu/dist/gdb6/gdb/testsuite/gdb.asm/h8300.inc

   1         comment "subroutine prologue"
   2         .macro gdbasm_enter
   3         mov.w   r6,@-r7
   4         mov.w   r7,r6
   5         subs    #2,r7
   6         .endm
   7
   8         comment "subroutine epilogue"
   9         .macro gdbasm_leave
  10         adds    #2,r7
  11         mov.w   @r7+,r6
  12         rts
  13         .endm
  14
  15         .macro gdbasm_call subr
  16         jsr @\subr
  17         .endm
  18
  19         .macro gdbasm_several_nops
  20         nop
  21         nop
  22         nop
  23         nop
  24         .endm
  25
  26         comment "exit (0)"
  27         .macro gdbasm_exit0
  28         mov.w #0xdead,r1
  29         mov.w #0xbeef,r2
  30         mov.w #0,r0
  31         sleep
  32         .endm
  33
  34         comment "crt0 startup"
  35         .macro gdbasm_startup
  36         .section .stack
  37 _stack: .long 1
  38         .section .text
  39         .global _start
  40 _start:
  41         mov.w   #0,r6
  42         mov.w   #_stack,sp      ; or mov.l #_stack,sp
  43         mov.w   #_edata,r0
  44         mov.w   #_end,r1
  45         sub.w   r2,r2
  46 .loop:  mov.w   r2,@r0
  47         adds    #2,r0
  48         cmp     r1,r0
  49         blo     .loop
  50         .endm