sys/arch/mvme68k/stand/libbug/bugstart.s

   1 /*      $NetBSD: bugstart.s,v 1.1 2000/12/05 21:54:33 scw Exp $ */
   2
   3 #define _LOCORE
   4 #include <machine/prom.h>
   5 #undef _LOCORE
   6 #include <machine/asm.h>
   7
   8         .data
   9         .even
  10
  11 GLOBAL(bugargs)
  12         .space  MVMEPROM_ARGS_MAX*4
  13
  14         .text
  15         .even
  16
  17         .long   _C_LABEL(start) - 0x10
  18         .long   _C_LABEL(start)
  19
  20 #define BUG_ARG(which)  _C_LABEL(bugargs) + (which)
  21
  22 ENTRY_NOPROFILE(_start)
  23 ENTRY_NOPROFILE(start)
  24         moveml  %d0/%a0,%sp@-
  25         lea     _C_LABEL(edata),%a0
  26         movl    #_C_LABEL(end) - 4,%d0
  27         subl    %a0,%d0
  28         lsrl    #2,%d0
  29 1:      clrl    %a0@+
  30         dbra    %d0,1b
  31         moveml  %sp@+,%d0/%a0
  32         movl    MVMEPROM_REG_DEVLUN, BUG_ARG(MVMEPROM_ARGS_DEVLUN)
  33         movl    MVMEPROM_REG_CTRLLUN, BUG_ARG(MVMEPROM_ARGS_CTRLLUN)
  34         movl    MVMEPROM_REG_FLAGS, BUG_ARG(MVMEPROM_ARGS_FLAGS)
  35         movl    MVMEPROM_REG_CTRLADDR, BUG_ARG(MVMEPROM_ARGS_CTRLADDR)
  36         movl    MVMEPROM_REG_ENTRY, BUG_ARG(MVMEPROM_ARGS_ENTRY)
  37         movl    MVMEPROM_REG_CONFBLK, BUG_ARG(MVMEPROM_ARGS_CONFBLK)
  38         movl    MVMEPROM_REG_NBARGSTART, BUG_ARG(MVMEPROM_ARGS_NBARGSTART)
  39         movl    MVMEPROM_REG_NBARGEND, BUG_ARG(MVMEPROM_ARGS_NBARGEND)
  40         movl    MVMEPROM_REG_ARGSTART, BUG_ARG(MVMEPROM_ARGS_ARGSTART)
  41         movl    MVMEPROM_REG_ARGEND, BUG_ARG(MVMEPROM_ARGS_ARGEND)
  42         jmp     _C_LABEL(_bugstart)
  43
  44 ENTRY_NOPROFILE(bugexec)
  45         addql   #4,%sp
  46         movl    BUG_ARG(MVMEPROM_ARGS_DEVLUN), MVMEPROM_REG_DEVLUN
  47         movl    BUG_ARG(MVMEPROM_ARGS_CTRLLUN), MVMEPROM_REG_CTRLLUN
  48         movl    BUG_ARG(MVMEPROM_ARGS_FLAGS), MVMEPROM_REG_FLAGS
  49         movl    BUG_ARG(MVMEPROM_ARGS_CTRLADDR), MVMEPROM_REG_CTRLADDR
  50         movl    BUG_ARG(MVMEPROM_ARGS_ENTRY), MVMEPROM_REG_ENTRY
  51         movl    BUG_ARG(MVMEPROM_ARGS_CONFBLK), MVMEPROM_REG_CONFBLK
  52         movl    BUG_ARG(MVMEPROM_ARGS_NBARGSTART), MVMEPROM_REG_NBARGSTART
  53         movl    BUG_ARG(MVMEPROM_ARGS_NBARGEND), MVMEPROM_REG_NBARGEND
  54         movl    BUG_ARG(MVMEPROM_ARGS_ARGSTART), MVMEPROM_REG_ARGSTART
  55         movl    BUG_ARG(MVMEPROM_ARGS_ARGEND), MVMEPROM_REG_ARGEND
  56 ENTRY_NOPROFILE(__main)
  57         rts