===============================================================================
400035c0 <dev_zero_control>:
                                         
  rtems_device_minor_number minor RTEMS_UNUSED,
                      
  void *arg RTEMS_UNUSED
                                             
)
                                                                    
{
                                                                    
  return RTEMS_IO_ERROR;
                                             
}
                                                                    
400035c0:	81 c3 e0 08 	retl 
                                         <== NOT EXECUTED
400035c4:	90 10 20 1b 	mov  0x1b, %o0
                                <== NOT EXECUTED

                                                                     
===============================================================================
4000358c <dev_zero_read>:
                                            
rtems_device_driver dev_zero_read(
                                   
  rtems_device_major_number major RTEMS_UNUSED,
                      
  rtems_device_minor_number minor RTEMS_UNUSED,
                      
  void *arg RTEMS_UNUSED
                                             
)
                                                                    
{
                                                                    
4000358c:	9d e3 bf a0 	save  %sp, -96, %sp
                           <== NOT EXECUTED
  rtems_libio_rw_args_t *rw = arg;
                                   

                                                                     
  rw->bytes_moved = rw->count;
                                       
40003590:	d4 06 a0 14 	ld  [ %i2 + 0x14 ], %o2
                       <== NOT EXECUTED
40003594:	d4 26 a0 1c 	st  %o2, [ %i2 + 0x1c ]
                       <== NOT EXECUTED
  memset(rw->buffer, 0, rw->count);
                                  

                                                                     
  return RTEMS_SUCCESSFUL;
                                           
}
                                                                    
40003598:	b0 10 20 00 	clr  %i0
                                      <== NOT EXECUTED
  memset(rw->buffer, 0, rw->count);
                                  
4000359c:	d0 06 a0 10 	ld  [ %i2 + 0x10 ], %o0
                       <== NOT EXECUTED
400035a0:	40 00 35 5b 	call  40010b0c <memset>
                       <== NOT EXECUTED
400035a4:	92 10 20 00 	clr  %o1
                                      <== NOT EXECUTED
}
                                                                    
400035a8:	81 c7 e0 08 	ret 
                                          <== NOT EXECUTED
400035ac:	81 e8 00 00 	restore 
                                      <== NOT EXECUTED

                                                                     
===============================================================================
400035b0 <dev_zero_write>:
                                           
  void *arg
                                                          
)
                                                                    
{
                                                                    
  rtems_libio_rw_args_t *rw = arg;
                                   

                                                                     
  rw->bytes_moved = rw->count;
                                       
400035b0:	c2 02 a0 14 	ld  [ %o2 + 0x14 ], %g1
                       <== NOT EXECUTED
400035b4:	c2 22 a0 1c 	st  %g1, [ %o2 + 0x1c ]
                       <== NOT EXECUTED

                                                                     
  return RTEMS_SUCCESSFUL;
                                           
}
                                                                    
400035b8:	81 c3 e0 08 	retl 
                                         <== NOT EXECUTED
400035bc:	90 10 20 00 	clr  %o0
                                      <== NOT EXECUTED

                                                                     
===============================================================================
4000352c <null_close>:
                                               
4000352c:	81 c3 e0 08 	retl 
                                         <== NOT EXECUTED
40003530:	90 10 20 00 	clr  %o0
                                      <== NOT EXECUTED

                                                                     
===============================================================================
40003558 <null_control>:
                                             
40003558:	81 c3 e0 08 	retl 
                                         <== NOT EXECUTED
4000355c:	90 10 20 00 	clr  %o0
                                      <== NOT EXECUTED

                                                                     
===============================================================================
400034c8 <null_initialize>:
                                          
rtems_device_driver null_initialize(
                                 
  rtems_device_major_number major,
                                   
  rtems_device_minor_number minor RTEMS_UNUSED,
                      
  void *pargp RTEMS_UNUSED
                                           
)
                                                                    
{
                                                                    
400034c8:	9d e3 bf a0 	save  %sp, -96, %sp
                           
  rtems_device_driver status;
                                        

                                                                     
  if ( !initialized ) {
                                              
400034cc:	03 10 00 77 	sethi  %hi(0x4001dc00), %g1
                   
400034d0:	c4 48 60 ac 	ldsb  [ %g1 + 0xac ], %g2	! 4001dcac <initialized>

400034d4:	80 a0 a0 00 	cmp  %g2, 0
                                   
400034d8:	02 80 00 04 	be  400034e8 <null_initialize+0x20>
           <== ALWAYS TAKEN
400034dc:	84 10 20 01 	mov  1, %g2
                                   

                                                                     
    NULL_major = major;
                                              
  }
                                                                  

                                                                     
  return RTEMS_SUCCESSFUL;
                                           
}
                                                                    
400034e0:	81 c7 e0 08 	ret 
                                          <== NOT EXECUTED
400034e4:	91 e8 20 00 	restore  %g0, 0, %o0
                          <== NOT EXECUTED
    status = rtems_io_register_name(
                                 
400034e8:	94 10 20 00 	clr  %o2
                                      
    initialized = 1;
                                                 
400034ec:	c4 28 60 ac 	stb  %g2, [ %g1 + 0xac ]
                      
    status = rtems_io_register_name(
                                 
400034f0:	92 10 00 18 	mov  %i0, %o1
                                 
400034f4:	11 10 00 6a 	sethi  %hi(0x4001a800), %o0
                   
400034f8:	40 00 06 6d 	call  40004eac <rtems_io_register_name>
       
400034fc:	90 12 23 20 	or  %o0, 0x320, %o0	! 4001ab20 <node_handlers+0x144>

    if (status != RTEMS_SUCCESSFUL)
                                  
40003500:	80 a2 20 00 	cmp  %o0, 0
                                   
40003504:	12 80 00 05 	bne  40003518 <null_initialize+0x50>
          <== NEVER TAKEN
40003508:	03 10 00 7c 	sethi  %hi(0x4001f000), %g1
                   
    NULL_major = major;
                                              
4000350c:	f0 20 63 dc 	st  %i0, [ %g1 + 0x3dc ]	! 4001f3dc <NULL_major>

}
                                                                    
40003510:	81 c7 e0 08 	ret 
                                          
40003514:	91 e8 20 00 	restore  %g0, 0, %o0
                          
      rtems_fatal_error_occurred(status);
                            
40003518:	40 00 12 d1 	call  4000805c <rtems_fatal_error_occurred>
   <== NOT EXECUTED
4000351c:	01 00 00 00 	nop 
                                          <== NOT EXECUTED
40003520:	01 00 00 00 	nop 
                                          <== NOT EXECUTED

                                                                     
===============================================================================
40003524 <null_open>:
                                                
  rtems_device_minor_number minor RTEMS_UNUSED,
                      
  void *pargp RTEMS_UNUSED
                                           
)
                                                                    
{
                                                                    
  return NULL_SUCCESSFUL;
                                            
}
                                                                    
40003524:	81 c3 e0 08 	retl 
                                         <== NOT EXECUTED
40003528:	90 10 20 00 	clr  %o0	! 0 <PROM_START>
                     <== NOT EXECUTED

                                                                     
===============================================================================
40003534 <null_read>:
                                                
40003534:	81 c3 e0 08 	retl 
                                         <== NOT EXECUTED
40003538:	90 10 20 00 	clr  %o0
                                      <== NOT EXECUTED

                                                                     
===============================================================================
4000353c <null_write>:
                                               
  void *pargp
                                                        
)
                                                                    
{
                                                                    
  rtems_libio_rw_args_t *rw_args = (rtems_libio_rw_args_t *) pargp;
  

                                                                     
  if ( rw_args )
                                                     
4000353c:	80 a2 a0 00 	cmp  %o2, 0
                                   <== NOT EXECUTED
40003540:	02 80 00 04 	be  40003550 <null_write+0x14>
                <== NOT EXECUTED
40003544:	01 00 00 00 	nop 
                                          <== NOT EXECUTED
    rw_args->bytes_moved = rw_args->count;
                           
40003548:	c2 02 a0 14 	ld  [ %o2 + 0x14 ], %g1
                       <== NOT EXECUTED
4000354c:	c2 22 a0 1c 	st  %g1, [ %o2 + 0x1c ]
                       <== NOT EXECUTED

                                                                     
  return NULL_SUCCESSFUL;
                                            
}
                                                                    
40003550:	81 c3 e0 08 	retl 
                                         <== NOT EXECUTED
40003554:	90 10 20 00 	clr  %o0
                                      <== NOT EXECUTED