New simulator for Fujitsu frv contributed by Red Hat.

1 files changed, 96 insertions, 0 deletions

diff --git a/sim/frv/devices.c b/sim/frv/devices.c
new file mode 100644
index 0000000..3c1dedb
--- /dev/null
+++ b/sim/frv/devices.c
@@ -0,0 +1,96 @@
+/* frv device support
+   Copyright (C) 1998, 1999 Free Software Foundation, Inc.
+   Contributed by Red Hat.
+
+This file is part of the GNU simulators.
+
+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, 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.  */
+
+/* ??? All of this is just to get something going.  wip!  */
+
+#include "sim-main.h"
+
+#ifdef HAVE_DV_SOCKSER
+#include "dv-sockser.h"
+#endif
+
+device frv_devices;
+
+int
+device_io_read_buffer (device *me, void *source, int space,
+		       address_word addr, unsigned nr_bytes,
+		       SIM_DESC sd, SIM_CPU *cpu, sim_cia cia)
+{
+  if (STATE_ENVIRONMENT (sd) != OPERATING_ENVIRONMENT)
+    return nr_bytes;
+
+#ifdef HAVE_DV_SOCKSER
+  if (addr == UART_INCHAR_ADDR)
+    {
+      int c = dv_sockser_read (sd);
+      if (c == -1)
+	return 0;
+      *(char *) source = c;
+      return 1;
+    }
+  if (addr == UART_STATUS_ADDR)
+    {
+      int status = dv_sockser_status (sd);
+      unsigned char *p = source;
+      p[0] = 0;
+      p[1] = (((status & DV_SOCKSER_INPUT_EMPTY)
+#ifdef UART_INPUT_READY0
+	       ? UART_INPUT_READY : 0)
+#else
+	       ? 0 : UART_INPUT_READY)
+#endif
+	      + ((status & DV_SOCKSER_OUTPUT_EMPTY) ? UART_OUTPUT_READY : 0));
+      return 2;
+    }
+#endif
+
+  return nr_bytes;
+}
+
+int
+device_io_write_buffer (device *me, const void *source, int space,
+			address_word addr, unsigned nr_bytes,
+                        SIM_DESC sd, SIM_CPU *cpu, sim_cia cia)
+{
+
+#if WITH_SCACHE
+  if (addr == MCCR_ADDR)
+    {
+      if ((*(const char *) source & MCCR_CP) != 0)
+	scache_flush (sd);
+      return nr_bytes;
+    }
+#endif
+
+  if (STATE_ENVIRONMENT (sd) != OPERATING_ENVIRONMENT)
+    return nr_bytes;
+
+#if HAVE_DV_SOCKSER
+  if (addr == UART_OUTCHAR_ADDR)
+    {
+      int rc = dv_sockser_write (sd, *(char *) source);
+      return rc == 1;
+    }
+#endif
+
+  return nr_bytes;
+}
+
+void device_error (device *me, char* message, ...) {}