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#ifndef _RISCV_TRIGGERS_H
#define _RISCV_TRIGGERS_H
#include <vector>
#include "decode.h"
namespace triggers {
typedef enum {
OPERATION_EXECUTE,
OPERATION_STORE,
OPERATION_LOAD,
} operation_t;
typedef enum
{
ACTION_DEBUG_EXCEPTION = MCONTROL_ACTION_DEBUG_EXCEPTION,
ACTION_DEBUG_MODE = MCONTROL_ACTION_DEBUG_MODE,
ACTION_TRACE_START = MCONTROL_ACTION_TRACE_START,
ACTION_TRACE_STOP = MCONTROL_ACTION_TRACE_STOP,
ACTION_TRACE_EMIT = MCONTROL_ACTION_TRACE_EMIT
} action_t;
class matched_t
{
public:
matched_t(int index,
triggers::operation_t operation, reg_t address, reg_t data) :
index(index), operation(operation), address(address), data(data) {}
int index;
triggers::operation_t operation;
reg_t address;
reg_t data;
};
class trigger_t {
public:
bool dmode;
action_t action;
protected:
trigger_t() : dmode(false), action(ACTION_DEBUG_EXCEPTION) {};
};
class mcontrol_t : public trigger_t {
public:
typedef enum
{
MATCH_EQUAL = MCONTROL_MATCH_EQUAL,
MATCH_NAPOT = MCONTROL_MATCH_NAPOT,
MATCH_GE = MCONTROL_MATCH_GE,
MATCH_LT = MCONTROL_MATCH_LT,
MATCH_MASK_LOW = MCONTROL_MATCH_MASK_LOW,
MATCH_MASK_HIGH = MCONTROL_MATCH_MASK_HIGH
} match_t;
mcontrol_t();
reg_t tdata1_read(const processor_t *proc) const noexcept;
bool tdata1_write(processor_t *proc, const reg_t val) noexcept;
reg_t tdata2_read(const processor_t *proc) const noexcept;
bool tdata2_write(processor_t *proc, const reg_t val) noexcept;
uint8_t type;
uint8_t maskmax;
bool select;
bool timing;
bool chain;
match_t match;
bool m;
bool h;
bool s;
bool u;
bool execute;
bool store;
bool load;
reg_t tdata2;
};
class module_t {
public:
module_t(unsigned count);
// Return the index of a trigger that matched, or -1.
int trigger_match(triggers::operation_t operation, reg_t address, reg_t data);
processor_t *proc;
std::vector<mcontrol_t *> triggers;
};
};
#endif
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