Generate device tree for target machine

1 files changed, 34 insertions, 0 deletions

diff --git a/riscv/devices.h b/riscv/devices.h
new file mode 100644
index 0000000..558ecc7
--- /dev/null
+++ b/riscv/devices.h
@@ -0,0 +1,34 @@
+#ifndef _RISCV_DEVICES_H
+#define _RISCV_DEVICES_H
+
+#include "decode.h"
+#include <map>
+#include <vector>
+
+class abstract_device_t {
+ public:
+  virtual bool load(reg_t addr, size_t len, uint8_t* bytes) = 0;
+  virtual bool store(reg_t addr, size_t len, const uint8_t* bytes) = 0;
+  virtual ~abstract_device_t() {}
+};
+
+class bus_t : public abstract_device_t {
+ public:
+  bool load(reg_t addr, size_t len, uint8_t* bytes);
+  bool store(reg_t addr, size_t len, const uint8_t* bytes);
+  void add_device(reg_t addr, abstract_device_t* dev);
+
+ private:
+  std::map<reg_t, abstract_device_t*> devices;
+};
+
+class rom_device_t : public abstract_device_t {
+ public:
+  rom_device_t(std::vector<char> data);
+  bool load(reg_t addr, size_t len, uint8_t* bytes);
+  bool store(reg_t addr, size_t len, const uint8_t* bytes);
+ private:
+  std::vector<char> data;
+};
+
+#endif