// license:BSD-3-Clause // copyright-holders:Aaron Giles /********************************************************************* dvmemory.h Memory debugger view. ***************************************************************************/ #ifndef MAME_EMU_DEBUG_DVMEMORY_H #define MAME_EMU_DEBUG_DVMEMORY_H #pragma once #include "debugvw.h" #include "softfloat3/source/include/softfloat.h" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // a memory view_source class debug_view_memory_source : public debug_view_source { friend class debug_view_memory; public: debug_view_memory_source(std::string &&name, address_space &space); debug_view_memory_source(std::string &&name, memory_region ®ion); debug_view_memory_source(std::string &&name, void *base, int element_size, int num_elements, int num_blocks, int block_stride); address_space *space() const { return m_space; } private: address_space *m_space; // address space we reference (if any) device_memory_interface *m_memintf; // pointer to the memory interface of the device void * m_base; // pointer to memory base offs_t m_blocklength; // length of each block of memory offs_t m_numblocks; // number of blocks of memory offs_t m_blockstride; // stride between blocks of memory offs_t m_offsetxor; // XOR to apply to offsets endianness_t m_endianness; // endianness of memory u8 m_prefsize; // preferred bytes per chunk }; // debug view for memory class debug_view_memory : public debug_view { friend class debug_view_manager; // construction/destruction debug_view_memory(running_machine &machine, debug_view_osd_update_func osdupdate, void *osdprivate); struct memory_view_pos; public: enum class data_format { HEX_8BIT = 1, HEX_16BIT = 2, HEX_32BIT = 4, HEX_64BIT = 8, FLOAT_32BIT = 9, FLOAT_64BIT = 10, FLOAT_80BIT = 11, OCTAL_8BIT = 12, OCTAL_16BIT = 13, OCTAL_32BIT = 14, OCTAL_64BIT = 15 }; static bool is_valid_format(data_format format) { return int(format) >= 0 && int(format) < std::size(s_memory_pos_table) && get_posdata(format).m_bytes != 0; } // getters const char *expression() const { return m_expression.string(); } data_format get_data_format() { flush_updates(); return m_data_format; } u32 chunks_per_row() { flush_updates(); return m_chunks_per_row; } bool reverse() const { return m_reverse_view; } bool ascii() const { return m_ascii_view; } bool physical() const { return m_no_translation; } int address_radix() const { return m_address_radix; } offs_t addressAtCursorPosition(const debug_view_xy& pos) { return get_cursor_pos(pos).m_address; } // setters void set_expression(const std::string &expression); void set_chunks_per_row(u32 rowchunks); void set_data_format(data_format format); void set_reverse(bool reverse); void set_ascii(bool ascii); void set_physical(bool physical); void set_address_radix(int radix); protected: // view overrides virtual void view_notify(debug_view_notification type) override; virtual void view_update() override; virtual void view_char(int chval) override; virtual void view_click(const int button, const debug_view_xy& pos) override; private: struct cursor_pos { cursor_pos(offs_t address = 0, u8 shift = 0) : m_address(address), m_shift(shift) { } offs_t m_address; u8 m_shift; }; // data format helpers static bool is_hex_format(data_format format) { return int(format) <= 8; } static bool is_octal_format(data_format format) { return int(format) >= 12; } static const memory_view_pos &get_posdata(data_format format) { return s_memory_pos_table[int(format)]; } // internal helpers void enumerate_sources(); void recompute(); bool needs_recompute(); // cursor position management cursor_pos get_cursor_pos(const debug_view_xy& cursor); void set_cursor_pos(cursor_pos pos); cursor_pos begin_update_and_get_cursor_pos() { begin_update(); return get_cursor_pos(m_cursor); } void end_update_and_set_cursor_pos(cursor_pos pos) { set_cursor_pos(pos); end_update(); } // memory access bool read(u8 size, offs_t offs, u64 &data); void write(u8 size, offs_t offs, u64 data); bool write_digit(offs_t offs, u8 pos, u8 digit); bool read(u8 size, offs_t offs, extFloat80_t &data); bool read_chunk(offs_t address, int chunknum, u64 &chunkdata); void generate_row(debug_view_char *destmin, debug_view_char *destmax, debug_view_char *destrow, offs_t address); // internal state debug_view_expression m_expression; // expression describing the start address u32 m_chunks_per_row; // number of chunks displayed per line u8 m_bytes_per_chunk; // bytes per chunk u8 m_steps_per_chunk; // bytes per chunk data_format m_data_format; // 1-8 current values 9 32bit floating point bool m_reverse_view; // reverse-endian view? bool m_ascii_view; // display ASCII characters? bool m_no_translation; // don't run addresses through the cpu translation hook bool m_edit_enabled; // can modify contents ? u8 m_shift_bits; // number of bits for each character/cursor position u8 m_address_radix; // numerical radix for address column and expressions offs_t m_maxaddr; // (derived) maximum address to display u32 m_bytes_per_row; // (derived) number of bytes displayed per line u32 m_byte_offset; // (derived) offset of starting visible byte std::string m_addrformat; // (derived) format string to use to print addresses struct section { bool contains(int x) const { return x >= m_pos && x < m_pos + m_width; } s32 m_pos; /* starting position */ s32 m_width; /* width of this section */ }; section m_section[3]; // (derived) 3 sections to manage struct memory_view_pos { u8 m_bytes; // bytes per entry u8 m_spacing; // spacing between each entry u8 m_shift[28]; // shift for each character }; static const memory_view_pos s_memory_pos_table[16]; // table for rendering at different data formats // constants static constexpr int MEM_MAX_LINE_WIDTH = 1024; }; #endif // MAME_EMU_DEBUG_DVMEMORY_H