Implement simple address-space ranges registration and example peripheral.

Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>

1 files changed, 62 insertions, 0 deletions

diff --git a/qtmips_machine/peripheral.cpp b/qtmips_machine/peripheral.cpp
new file mode 100644
index 0000000..161f760
--- /dev/null
+++ b/qtmips_machine/peripheral.cpp
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*******************************************************************************
+ * QtMips - MIPS 32-bit Architecture Subset Simulator
+ *
+ * Implemented to support following courses:
+ *
+ *   B35APO - Computer Architectures
+ *   https://cw.fel.cvut.cz/wiki/courses/b35apo
+ *
+ *   B4M35PAP - Advanced Computer Architectures
+ *   https://cw.fel.cvut.cz/wiki/courses/b4m35pap/start
+ *
+ * Copyright (c) 2017-2019 Karel Koci<cynerd@email.cz>
+ * Copyright (c) 2019      Pavel Pisa <pisa@cmp.felk.cvut.cz>
+ *
+ * Faculty of Electrical Engineering (http://www.fel.cvut.cz)
+ * Czech Technical University        (http://www.cvut.cz/)
+ *
+ * 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., 51 Franklin Street, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ *
+ ******************************************************************************/
+
+#include "peripheral.h"
+
+using namespace machine;
+
+SimplePeripheral::SimplePeripheral() {
+
+}
+
+SimplePeripheral::~SimplePeripheral() {
+
+}
+
+bool SimplePeripheral::wword(std::uint32_t address, std::uint32_t value) {
+#if 0
+    printf("SimplePeripheral::wword address 0x%08lx data 0x%08lx\n",
+           (unsigned long)address, (unsigned long)value);
+#endif
+    return true;
+}
+
+std::uint32_t SimplePeripheral::rword(std::uint32_t address) const {
+#if 0
+    printf("SimplePeripheral::rword address 0x%08lx\n",
+           (unsigned long)address);
+#endif
+    return 0x12345678;
+}