Implement hartstatus field.

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

diff --git a/riscv/debug_module.h b/riscv/debug_module.h
index 7a78ad3d278ea3d744864e5c5dd1c3e4b5460cf3..b64a454b0ecfb5a9345aaec6da23e846b6e55a84 100644 (file)
--- a/riscv/debug_module.h
+++ b/riscv/debug_module.h
@@ -6,9 +6,13 @@
 
 #include "devices.h"
 
+class sim_t;
+
 class debug_module_t : public abstract_device_t
 {
   public:
+    debug_module_t(sim_t *sim);
+
     bool load(reg_t addr, size_t len, uint8_t* bytes);
     bool store(reg_t addr, size_t len, const uint8_t* bytes);
 
@@ -16,11 +20,9 @@ class debug_module_t : public abstract_device_t
     uint32_t ram_read32(unsigned int index);
 
     void set_interrupt(uint32_t hartid) {
-      fprintf(stderr, "set debug interrupt 0x%x\n", hartid);
       interrupt.insert(hartid);
     }
     void clear_interrupt(uint32_t hartid) {
-      fprintf(stderr, "clear debug interrupt 0x%x\n", hartid);
       interrupt.erase(hartid);
     }
     bool get_interrupt(uint32_t hartid) const {
@@ -28,23 +30,36 @@ class debug_module_t : public abstract_device_t
     }
 
     void set_halt_notification(uint32_t hartid) {
-      fprintf(stderr, "set debug halt_notification 0x%x\n", hartid);
       halt_notification.insert(hartid);
     }
     void clear_halt_notification(uint32_t hartid) {
-      fprintf(stderr, "clear debug halt_notification 0x%x\n", hartid);
       halt_notification.erase(hartid);
     }
     bool get_halt_notification(uint32_t hartid) const {
       return halt_notification.find(hartid) != halt_notification.end();
     }
 
+    // Debug Module Interface that the debugger (in our case through JTAG DTM)
+    // uses to access the DM.
+    // Return true for success, false for failure.
+    bool dmi_read(unsigned address, uint32_t *value);
+    bool dmi_write(unsigned address, uint32_t value);
+
   private:
+    sim_t *sim;
     // Track which interrupts from module to debugger are set.
     std::set<uint32_t> interrupt;
     // Track which halt notifications from debugger to module are set.
     std::set<uint32_t> halt_notification;
     char debug_ram[DEBUG_RAM_SIZE];
+
+    static const unsigned datacount = 8;
+    static const unsigned progsize = 8;
+
+    uint32_t dmcontrol;
+    uint32_t abstractcs;
+    uint32_t data[datacount];
+    uint32_t ibuf[progsize];
 };
 
 #endif