1 // See LICENSE for license details.
2 #ifndef _RISCV_DEBUG_MODULE_H
3 #define _RISCV_DEBUG_MODULE_H
42 CMDERR_HALTRESUME
= 4,
54 unsigned autoexecprogbuf
;
55 unsigned autoexecdata
;
58 class debug_module_t
: public abstract_device_t
61 debug_module_t(sim_t
*sim
, unsigned progbufsize
);
64 void add_device(bus_t
*bus
);
66 bool load(reg_t addr
, size_t len
, uint8_t* bytes
);
67 bool store(reg_t addr
, size_t len
, const uint8_t* bytes
);
69 // Debug Module Interface that the debugger (in our case through JTAG DTM)
70 // uses to access the DM.
71 // Return true for success, false for failure.
72 bool dmi_read(unsigned address
, uint32_t *value
);
73 bool dmi_write(unsigned address
, uint32_t value
);
76 static const unsigned datasize
= 2;
77 // Size of program_buffer in 32-bit words, as exposed to the rest of the
80 // Actual size of the program buffer, which is 1 word bigger than we let on
81 // to implement the implicit ebreak at the end.
82 unsigned program_buffer_bytes
;
83 static const unsigned debug_data_start
= 0x380;
84 unsigned debug_progbuf_start
;
86 static const unsigned debug_abstract_size
= 2;
87 unsigned debug_abstract_start
;
91 uint8_t debug_rom_whereto
[4];
92 uint8_t debug_abstract
[debug_abstract_size
* 4];
93 uint8_t *program_buffer
;
94 uint8_t dmdata
[datasize
* 4];
98 uint8_t debug_rom_flags
[1024];
100 void write32(uint8_t *rom
, unsigned int index
, uint32_t value
);
101 uint32_t read32(uint8_t *rom
, unsigned int index
);
103 dmcontrol_t dmcontrol
;
105 abstractcs_t abstractcs
;
106 abstractauto_t abstractauto
;
109 processor_t
*current_proc() const;
111 bool perform_abstract_command();