Initial creation of sourceware repository

1 files changed, 0 insertions, 380 deletions

diff --git a/sim/common/dv-glue.c b/sim/common/dv-glue.c
deleted file mode 100644
index 070b638..0000000
--- a/sim/common/dv-glue.c
+++ /dev/null
@@ -1,380 +0,0 @@
-/*  This file is part of the program psim.
-    
-    Copyright (C) 1994-1996,1998 Andrew Cagney <cagney@highland.com.au>
-    
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-    
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-    
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-    
-    */
-
-
-#include "sim-main.h"
-#include "hw-base.h"
-
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-#endif
-
-/* DEVICE
-   
-
-   glue - glue to interconnect and test hardware ports
-   
-
-   DESCRIPTION
-   
-
-   The glue device provides two functions.  Firstly, it provides a
-   mechanism for inspecting and driving the port network.  Secondly,
-   it provides a set of boolean primitives that can be used to apply
-   combinatorial operations to the port network.
-
-   Glue devices have a variable number of big endian <<output>>
-   registers.  Each register is target-word sized.  The registers can
-   be read and written.
-
-   Writing to an output register results in an event being driven
-   (level determined by the value written) on the devices
-   corresponding output port.
-
-   Reading an <<output>> register returns either the last value
-   written or the most recently computed value (for that register) as
-   a result of an event ariving on that port (which ever was computed
-   last).
-
-   At present the following sub device types are available:
-
-   <<glue>>: In addition to driving its output interrupt port with any
-   value written to an interrupt input port is stored in the
-   corresponding <<output>> register.  Such input interrupts, however,
-   are not propogated to an output interrupt port.
-
-   <<glue-and>>: The bit-wise AND of the interrupt inputs is computed
-   and then both stored in <<output>> register zero and propogated to
-   output interrupt output port zero.
-
-
-   PROPERTIES
-   
-
-   reg = <address> <size> (required)
-
-   Specify the address (within the parent bus) that this device is to
-   live.  The address must be 2048 * sizeof (word) (8k in a 32bit
-   simulation) aligned.
-
-
-   interrupt-ranges = <int-number> <range> (optional)
-
-   If present, this specifies the number of valid interrupt inputs (up
-   to the maximum of 2048).  By default, <<int-number>> is zero and
-   range is determined by the <<reg>> size.
-
-
-   PORTS
-
-   
-   int[0..] (input, output)
-
-   Both an input and an output port.
-
-
-   EXAMPLES
-
-
-   Enable tracing of the device:
-
-   | -t glue-device \
-
-
-   Create source, bitwize-and, and sink glue devices.  Since the
-   device at address <<0x10000>> is of size <<8>> it will have two
-   output interrupt ports.
-
-   | -o '/iobus@0xf0000000/glue@0x10000/reg 0x10000 8' \
-   | -o '/iobus@0xf0000000/glue-and@0x20000/reg 0x20000 4' \
-   | -o '/iobus@0xf0000000/glue-and/interrupt-ranges 0 2' \
-   | -o '/iobus@0xf0000000/glue@0x30000/reg 0x30000 4' \
-
-
-   Wire the two source interrupts to the AND device:
-
-   | -o '/iobus@0xf0000000/glue@0x10000 > 0 0 /iobus/glue-and' \
-   | -o '/iobus@0xf0000000/glue@0x10000 > 1 1 /iobus/glue-and' \
-
-
-   Wire the AND device up to the sink so that the and's output is not
-   left open.
-
-   | -o '/iobus@0xf0000000/glue-and > 0 0 /iobus/glue@0x30000' \
-
-
-   With the above configuration.  The client program is able to
-   compute a two bit AND.  For instance the <<C>> stub below prints 1
-   AND 0.
-
-   |  unsigned *input = (void*)0xf0010000;
-   |  unsigned *output = (void*)0xf0030000;
-   |  unsigned ans;
-   |  input[0] = htonl(1);
-   |  input[1] = htonl(0);
-   |  ans = ntohl(*output);
-   |  write_string("AND is ");
-   |  write_int(ans);
-   |  write_line();
-   
-
-   BUGS
-
-   
-   A future implementation of this device may support multiple
-   interrupt ranges.
-
-   Some of the devices listed may not yet be fully implemented.
-
-   Additional devices such as a D flip-flop (DFF), an inverter (INV)
-   or a latch (LAT) may prove useful.
-
-   */
-
-
-enum {
-  max_nr_ports = 2048,
-};
-
-enum hw_glue_type {
-  glue_undefined = 0,
-  glue_io,
-  glue_and,
-  glue_nand,
-  glue_or,
-  glue_xor,
-  glue_nor,
-  glue_not,
-};
-
-struct hw_glue {
-  enum hw_glue_type type;
-  int int_number;
-  int *input;
-  int nr_inputs;
-  unsigned sizeof_input;
-  /* our output registers */
-  int space;
-  unsigned_word address;
-  unsigned sizeof_output;
-  int *output;
-  int nr_outputs;
-};
-
-
-static hw_io_read_buffer_callback hw_glue_io_read_buffer;
-static hw_io_write_buffer_callback hw_glue_io_write_buffer;
-static hw_port_event_callback hw_glue_port_event;
-const static struct hw_port_descriptor hw_glue_ports[];
-
-static void
-hw_glue_finish (struct hw *me)
-{
-  struct hw_glue *glue = HW_ZALLOC (me, struct hw_glue);
-  
-  /* establish our own methods */
-  set_hw_data (me, glue);
-  set_hw_io_read_buffer (me, hw_glue_io_read_buffer);
-  set_hw_io_write_buffer (me, hw_glue_io_write_buffer);
-  set_hw_ports (me, hw_glue_ports);
-  set_hw_port_event (me, hw_glue_port_event);
-
-  /* attach to our parent bus */
-  do_hw_attach_regs (me);
-  
-  /* establish the output registers */
-  {
-    reg_property_spec unit;
-    int reg_nr;
-    /* find a relevant reg entry */
-    reg_nr = 0;
-    while (hw_find_reg_array_property (me, "reg", reg_nr, &unit)
-	   && !hw_unit_size_to_attach_size (hw_parent (me),
-					    &unit.size,
-					    &glue->sizeof_output,
-					    me))
-      reg_nr++;
-    /* check out the size */
-    if (glue->sizeof_output == 0)
-      hw_abort (me, "at least one reg property size must be nonzero");
-    if (glue->sizeof_output % sizeof (unsigned_word) != 0)
-      hw_abort (me, "reg property size must be %d aligned",
-		sizeof (unsigned_word));
-    /* and the address */
-    hw_unit_address_to_attach_address (hw_parent (me),
-				       &unit.address,
-				       &glue->space,
-				       &glue->address,
-				       me);
-    if (glue->address % (sizeof (unsigned_word) * max_nr_ports) != 0)
-      hw_abort (me, "reg property address must be %d aligned",
-		sizeof (unsigned_word) * max_nr_ports);
-    glue->nr_outputs = glue->sizeof_output / sizeof (unsigned_word);
-    glue->output = hw_zalloc (me, glue->sizeof_output);
-  }
-  
-  /* establish the input ports */
-  {
-    const struct hw_property *ranges;
-    ranges = hw_find_property (me, "interrupt-ranges");
-    if (ranges == NULL)
-      {
-	glue->int_number = 0;
-	glue->nr_inputs = glue->nr_outputs;
-      }
-    else if (ranges->sizeof_array != sizeof (unsigned_cell) * 2)
-      {
-	hw_abort (me, "invalid interrupt-ranges property (incorrect size)");
-      }
-    else
-      {
-	const unsigned_cell *int_range = ranges->array;
-	glue->int_number = BE2H_cell (int_range[0]);
-	glue->nr_inputs = BE2H_cell (int_range[1]);
-      }
-    glue->sizeof_input = glue->nr_inputs * sizeof (unsigned);
-    glue->input = hw_zalloc (me, glue->sizeof_input);
-  }
-  
-  /* determine our type */
-  {
-    const char *name = hw_name(me);
-    if (strcmp (name, "glue") == 0)
-      glue->type = glue_io;
-    else if (strcmp (name, "glue-and") == 0)
-      glue->type = glue_and;
-    else
-      hw_abort (me, "unimplemented glue type");
-  }
-  
-  HW_TRACE ((me, "int-number %d, nr_inputs %d, nr_outputs %d",
-	     glue->int_number, glue->nr_inputs, glue->nr_outputs));
-}
-
-static unsigned
-hw_glue_io_read_buffer (struct hw *me,
-			void *dest,
-			int space,
-			unsigned_word addr,
-			unsigned nr_bytes,
-			sim_cpu *cpu,
-			sim_cia cia)
-{
-  struct hw_glue *glue = (struct hw_glue *) hw_data (me);
-  int reg = ((addr - glue->address) / sizeof (unsigned_word)) % glue->nr_outputs;
-  if (nr_bytes != sizeof (unsigned_word)
-      || (addr % sizeof (unsigned_word)) != 0)
-    hw_abort (me, "missaligned read access (%d:0x%lx:%d) not supported",
-	      space, (unsigned long)addr, nr_bytes);
-  *(unsigned_word*)dest = H2BE_4(glue->output[reg]);
-  HW_TRACE ((me, "read - port %d (0x%lx), level %d",
-	     reg, (unsigned long) addr, glue->output[reg]));
-  return nr_bytes;
-}
-
-
-static unsigned
-hw_glue_io_write_buffer (struct hw *me,
-			 const void *source,
-			 int space,
-			 unsigned_word addr,
-			 unsigned nr_bytes,
-			 sim_cpu *cpu,
-			 sim_cia cia)
-{
-  struct hw_glue *glue = (struct hw_glue *) hw_data (me);
-  int reg = ((addr - glue->address) / sizeof (unsigned_word)) % max_nr_ports;
-  if (nr_bytes != sizeof (unsigned_word)
-      || (addr % sizeof (unsigned_word)) != 0)
-    hw_abort (me, "missaligned write access (%d:0x%lx:%d) not supported",
-	      space, (unsigned long) addr, nr_bytes);
-  glue->output[reg] = H2BE_4 (*(unsigned_word*)source);
-  HW_TRACE ((me, "write - port %d (0x%lx), level %d",
-	     reg, (unsigned long) addr, glue->output[reg]));
-  hw_port_event (me, reg, glue->output[reg], cpu, cia);
-  return nr_bytes;
-}
-
-static void
-hw_glue_port_event (struct hw *me,
-		    int my_port,
-		    struct hw *source,
-		    int source_port,
-		    int level,
-		    sim_cpu *cpu,
-		    sim_cia cia)
-{
-  struct hw_glue *glue = (struct hw_glue *) hw_data (me);
-  int i;
-  if (my_port < glue->int_number
-      || my_port >= glue->int_number + glue->nr_inputs)
-    hw_abort (me, "port %d outside of valid range", my_port);
-  glue->input[my_port - glue->int_number] = level;
-  switch (glue->type)
-    {
-    case glue_io:
-      {
-	int port = my_port % glue->nr_outputs;
-	glue->output[port] = level;
-	HW_TRACE ((me, "input - port %d (0x%lx), level %d",
-		   my_port,
-		   (unsigned long) glue->address + port * sizeof (unsigned_word),
-		   level));
-	break;
-      }
-    case glue_and:
-      {
-	glue->output[0] = glue->input[0];
-	for (i = 1; i < glue->nr_inputs; i++)
-	  glue->output[0] &= glue->input[i];
-	HW_TRACE ((me, "and - port %d, level %d arrived - output %d",
-		   my_port, level, glue->output[0]));
-	hw_port_event (me, 0, glue->output[0], cpu, cia);
-	break;
-      }
-    default:
-      {
-	hw_abort (me, "operator not implemented");
-	break;
-      }
-    }
-}
-
-
-static const struct hw_port_descriptor hw_glue_ports[] = {
-  { "int", 0, max_nr_ports },
-  { NULL }
-};
-
-
-const struct hw_device_descriptor dv_glue_descriptor[] = {
-  { "glue", hw_glue_finish, },
-  { "glue-and", hw_glue_finish, },
-  { "glue-nand", hw_glue_finish, },
-  { "glue-or", hw_glue_finish, },
-  { "glue-xor", hw_glue_finish, },
-  { "glue-nor", hw_glue_finish, },
-  { "glue-not", hw_glue_finish, },
-  { NULL },
-};