#endif
};
+typedef enum {
+ HR_NONE,
+ HR_STEPPED, // A single step was completed
+ HR_SWBP, // sbreak was executed
+ HR_INTERRUPT, // Execution interrupted by debugger
+ HR_CMDLINE, // Command line requested that the processor start halted
+ HR_ATTACHED // Halted because a debugger attached
+} halt_reason_t;
+
// this class represents one processor in a RISC-V machine.
class processor_t : public abstract_device_t
{
~processor_t();
void set_debug(bool value);
- void set_halted(bool value);
+ void set_halted(bool value, halt_reason_t reason);
void set_single_step(bool value);
void set_histogram(bool value);
void reset(bool value);
bool debug;
// TODO: Should this just be rolled into `run`?
bool halted; // When true, no instructions are executed.
+ halt_reason_t halt_reason; // Why is halted true?
// When true, execute exactly one instruction (even if halted is true), then
// set halted to true and single_step to false.
bool single_step;