NJU-ProjectN/nemu ics2023 initialized

NJU-ProjectN/nemu eb63cf3568dbf4e0c3c6ef462e6ec685550fabbc Merge pull request #76 from rijuyuezhu/master

nemu/include/device/alarm.h

@@ -0,0 +1,24 @@
+/***************************************************************************************
+* Copyright (c) 2014-2022 Zihao Yu, Nanjing University
+*
+* NEMU is licensed under Mulan PSL v2.
+* You can use this software according to the terms and conditions of the Mulan PSL v2.
+* You may obtain a copy of Mulan PSL v2 at:
+*          http://license.coscl.org.cn/MulanPSL2
+*
+* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+*
+* See the Mulan PSL v2 for more details.
+***************************************************************************************/
+
+#ifndef __DEVICE_ALARM_H__
+#define __DEVICE_ALARM_H__
+
+#define TIMER_HZ 60
+
+typedef void (*alarm_handler_t) ();
+void add_alarm_handle(alarm_handler_t h);
+
+#endif

nemu/include/device/map.h

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+/***************************************************************************************
+* Copyright (c) 2014-2022 Zihao Yu, Nanjing University
+*
+* NEMU is licensed under Mulan PSL v2.
+* You can use this software according to the terms and conditions of the Mulan PSL v2.
+* You may obtain a copy of Mulan PSL v2 at:
+*          http://license.coscl.org.cn/MulanPSL2
+*
+* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+*
+* See the Mulan PSL v2 for more details.
+***************************************************************************************/
+
+#ifndef __DEVICE_MAP_H__
+#define __DEVICE_MAP_H__
+
+#include <cpu/difftest.h>
+
+typedef void(*io_callback_t)(uint32_t, int, bool);
+uint8_t* new_space(int size);
+
+typedef struct {
+  const char *name;
+  // we treat ioaddr_t as paddr_t here
+  paddr_t low;
+  paddr_t high;
+  void *space;
+  io_callback_t callback;
+} IOMap;
+
+static inline bool map_inside(IOMap *map, paddr_t addr) {
+  return (addr >= map->low && addr <= map->high);
+}
+
+static inline int find_mapid_by_addr(IOMap *maps, int size, paddr_t addr) {
+  int i;
+  for (i = 0; i < size; i ++) {
+    if (map_inside(maps + i, addr)) {
+      difftest_skip_ref();
+      return i;
+    }
+  }
+  return -1;
+}
+
+void add_pio_map(const char *name, ioaddr_t addr,
+        void *space, uint32_t len, io_callback_t callback);
+void add_mmio_map(const char *name, paddr_t addr,
+        void *space, uint32_t len, io_callback_t callback);
+
+word_t map_read(paddr_t addr, int len, IOMap *map);
+void map_write(paddr_t addr, int len, word_t data, IOMap *map);
+
+#endif

nemu/include/device/mmio.h

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+/***************************************************************************************
+* Copyright (c) 2014-2022 Zihao Yu, Nanjing University
+*
+* NEMU is licensed under Mulan PSL v2.
+* You can use this software according to the terms and conditions of the Mulan PSL v2.
+* You may obtain a copy of Mulan PSL v2 at:
+*          http://license.coscl.org.cn/MulanPSL2
+*
+* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+*
+* See the Mulan PSL v2 for more details.
+***************************************************************************************/
+
+#ifndef __DEVICE_MMIO_H__
+#define __DEVICE_MMIO_H__
+
+#include <common.h>
+
+word_t mmio_read(paddr_t addr, int len);
+void mmio_write(paddr_t addr, int len, word_t data);
+
+#endif