mirror of https://github.com/bsnes-emu/bsnes.git
115 lines
2.3 KiB
C++
115 lines
2.3 KiB
C++
struct CPU : Processor::LR35902, Thread, MMIO {
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enum class Interrupt : uint { Vblank, Stat, Timer, Serial, Joypad };
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static auto Enter() -> void;
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auto main() -> void;
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auto interrupt_raise(Interrupt id) -> void;
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auto interrupt_test() -> void;
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auto interrupt_exec(uint16 pc) -> void;
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auto stop() -> bool;
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auto power() -> void;
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auto serialize(serializer&) -> void;
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//mmio.cpp
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auto wram_addr(uint16 addr) const -> uint;
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auto mmio_joyp_poll() -> void;
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auto mmio_read(uint16 addr) -> uint8;
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auto mmio_write(uint16 addr, uint8 data) -> void;
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//memory.cpp
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auto op_io() -> void;
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auto op_read(uint16 addr) -> uint8;
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auto op_write(uint16 addr, uint8 data) -> void;
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auto cycle_edge() -> void;
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auto dma_read(uint16 addr) -> uint8;
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auto dma_write(uint16 addr, uint8 data) -> void;
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auto debugger_read(uint16 addr) -> uint8;
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//timing.cpp
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auto add_clocks(uint clocks) -> void;
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auto timer_262144hz() -> void;
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auto timer_65536hz() -> void;
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auto timer_16384hz() -> void;
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auto timer_8192hz() -> void;
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auto timer_4096hz() -> void;
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auto hblank() -> void;
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struct Status {
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uint22 clock;
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//$ff00 JOYP
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bool p15;
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bool p14;
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uint8 joyp;
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uint8 mlt_req;
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//$ff01 SB
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uint8 serial_data;
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uint serial_bits;
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//$ff02 SC
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bool serial_transfer;
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bool serial_clock;
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//$ff04 DIV
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uint16 div;
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//$ff05 TIMA
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uint8 tima;
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//$ff06 TMA
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uint8 tma;
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//$ff07 TAC
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bool timer_enable;
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uint timer_clock;
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//$ff0f IF
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bool interrupt_request_joypad;
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bool interrupt_request_serial;
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bool interrupt_request_timer;
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bool interrupt_request_stat;
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bool interrupt_request_vblank;
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//$ff4d KEY1
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bool speed_double;
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bool speed_switch;
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//$ff51,$ff52 HDMA1,HDMA2
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uint16 dma_source;
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//$ff53,$ff54 HDMA3,HDMA4
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uint16 dma_target;
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//$ff55 HDMA5
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bool dma_mode;
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uint16 dma_length;
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bool dma_completed;
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//$ff6c ???
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uint8 ff6c;
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//$ff70 SVBK
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uint3 wram_bank;
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//$ff72-$ff75 ???
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uint8 ff72;
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uint8 ff73;
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uint8 ff74;
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uint8 ff75;
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//$ffff IE
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bool interrupt_enable_joypad;
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bool interrupt_enable_serial;
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bool interrupt_enable_timer;
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bool interrupt_enable_stat;
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bool interrupt_enable_vblank;
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} status;
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uint8 wram[32768]; //GB=8192, GBC=32768
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uint8 hram[128];
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};
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extern CPU cpu;
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