Initial Chisel core implementation

sim/verilator/memory.h

@@ -0,0 +1,40 @@
+#ifndef MEMORY_H
+#define MEMORY_H
+
+#include <cstdint>
+#include <vector>
+#include <string>
+
+#define TOHOST_ADDR   0x80001000ULL
+#define FROMHOST_ADDR 0x80001040ULL
+#define MEM_BASE      0x80000000ULL
+#define MEM_SIZE      (64 * 1024 * 1024)  // 64MB
+
+class Memory {
+private:
+    std::vector<uint8_t> mem;
+    uint64_t base_addr;
+
+public:
+    Memory();
+
+    bool load_elf(const std::string& filename);
+
+    uint8_t read8(uint64_t addr);
+    uint16_t read16(uint64_t addr);
+    uint32_t read32(uint64_t addr);
+    uint64_t read64(uint64_t addr);
+
+    void write8(uint64_t addr, uint8_t data);
+    void write16(uint64_t addr, uint16_t data);
+    void write32(uint64_t addr, uint32_t data);
+    void write64(uint64_t addr, uint64_t data);
+
+    uint64_t get_entry_point() const { return entry_point; }
+
+private:
+    uint64_t entry_point;
+    uint64_t to_offset(uint64_t addr);
+};
+
+#endif