/* The common simulator framework for GDB, the GNU Debugger.
- Copyright 2002, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+ Copyright 2002-2015 Free Software Foundation, Inc.
Contributed by Andrew Cagney and Red Hat.
/* DEVICE
-
+
pal - glue logic device containing assorted junk
-
+
DESCRIPTION
-
+
Typical hardware dependant hack. This device allows the firmware
to gain access to all the things the firmware needs (but the OS
doesn't).
RESET (write): halts the simulator. The value written to the
register is used as an exit status.
-
+
PROCESSOR ID (read): returns the processor identifier (0 .. N-1) of
the processor performing the read.
-
+
INTERRUPT (write): This register must be written using a two byte
store. The low byte specifies a port and the upper byte specifies
the a level. LEVEL is driven on the specified port. By
PROPERTIES
-
+
reg = <address> <size> (required)
hw_pal_device *hw_pal = (hw_pal_device *)hw_data (me);
char c;
int count;
- count = do_hw_poll_read (me, hw_pal->reader, 0/*STDIN*/, &c, sizeof(c));
+ count = do_hw_poll_read (me, hw_pal->reader, 0/*STDIN*/, &c, sizeof (c));
switch (count)
{
case HW_IO_NOT_READY:
{
hw_pal_device *hw_pal = (hw_pal_device*) hw_data (me);
unsigned_1 *byte = (unsigned_1 *) source;
-
+
switch (addr & hw_pal_address_mask)
{
do_counter_write (me, hw_pal, "countdown",
&hw_pal->countdown, source, nr_bytes);
break;
-
+
case hw_pal_timer:
do_counter_write (me, hw_pal, "timer",
&hw_pal->timer, source, nr_bytes);
break;
-
+
}
return nr_bytes;
}
#if NOT_YET
static void
-hw_pal_instance_delete_callback(hw_instance *instance)
+hw_pal_instance_delete_callback (hw_instance *instance)
{
/* nothing to delete, the hw_pal is attached to the struct hw */
return;