riscv: replace rtc device with a real clint implementation

[riscv-isa-sim.git] / riscv / devices.h

diff --git a/riscv/devices.h b/riscv/devices.h
index cb3b6d962cbe8c649c4e35560f1358c27839137f..f3ecb67a3c7f3ac46c5385aee18bb175ea93395c 100644 (file)
--- a/riscv/devices.h
+++ b/riscv/devices.h
@@ -34,17 +34,20 @@ class rom_device_t : public abstract_device_t {
   std::vector<char> data;
 };
 
-class rtc_t : public abstract_device_t {
+class clint_t : public abstract_device_t {
  public:
-  rtc_t(std::vector<processor_t*>&);
+  clint_t(std::vector<processor_t*>&);
   bool load(reg_t addr, size_t len, uint8_t* bytes);
   bool store(reg_t addr, size_t len, const uint8_t* bytes);
-  size_t size() { return regs.size() * sizeof(regs[0]); }
+  size_t size() { return CLINT_SIZE; }
   void increment(reg_t inc);
  private:
+  typedef uint64_t mtime_t;
+  typedef uint64_t mtimecmp_t;
+  typedef uint32_t msip_t;
   std::vector<processor_t*>& procs;
-  std::vector<uint64_t> regs;
-  uint64_t time() { return regs[0]; }
+  mtime_t mtime;
+  std::vector<mtimecmp_t> mtimecmp;
 };
 
 #endif