mirror of
https://github.com/bsnes-emu/bsnes.git
synced 2025-02-24 15:12:23 +01:00
94b2538af5
byuu says: Basically just a project rename, with s/bsnes/higan and the new icon from lowkee added in. It won't compile on Windows because I forgot to update the resource.rc file, and a path transform command isn't working on Windows. It was really just meant as a starting point, so that v091 WIPs can flow starting from .00 with the new name (it overshadows bsnes v091, so publicly speaking this "shouldn't exist" and will probably be deleted from Google Code when v092 is ready.)
147 lines
2.6 KiB
C++
Executable File
147 lines
2.6 KiB
C++
Executable File
struct CPU : Processor::R65816, Thread, public PPUcounter {
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uint8 wram[128 * 1024];
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enum : bool { Threaded = true };
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vector<Thread*> coprocessors;
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alwaysinline void step(unsigned clocks);
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alwaysinline void synchronize_smp();
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void synchronize_ppu();
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void synchronize_coprocessors();
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void synchronize_controllers();
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uint8 port_read(uint2 port) const;
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void port_write(uint2 port, uint8 data);
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uint8 pio();
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bool joylatch();
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alwaysinline bool interrupt_pending() { return status.interrupt_pending; }
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void enter();
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void enable();
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void power();
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void reset();
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void serialize(serializer&);
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CPU();
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~CPU();
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privileged:
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#include "dma/dma.hpp"
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#include "memory/memory.hpp"
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#include "mmio/mmio.hpp"
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#include "timing/timing.hpp"
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uint8 cpu_version;
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struct Status {
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bool interrupt_pending;
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unsigned clock_count;
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unsigned line_clocks;
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//timing
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bool irq_lock;
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unsigned dram_refresh_position;
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bool dram_refreshed;
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unsigned hdma_init_position;
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bool hdma_init_triggered;
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unsigned hdma_position;
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bool hdma_triggered;
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bool nmi_valid;
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bool nmi_line;
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bool nmi_transition;
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bool nmi_pending;
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bool nmi_hold;
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bool irq_valid;
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bool irq_line;
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bool irq_transition;
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bool irq_pending;
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bool irq_hold;
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bool reset_pending;
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//DMA
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bool dma_active;
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unsigned dma_counter;
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unsigned dma_clocks;
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bool dma_pending;
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bool hdma_pending;
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bool hdma_mode; //0 = init, 1 = run
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//auto joypad polling
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bool auto_joypad_active;
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bool auto_joypad_latch;
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unsigned auto_joypad_counter;
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unsigned auto_joypad_clock;
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//MMIO
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//$2140-217f
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uint8 port[4];
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//$2181-$2183
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uint17 wram_addr;
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//$4016-$4017
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bool joypad_strobe_latch;
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uint32 joypad1_bits;
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uint32 joypad2_bits;
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//$4200
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bool nmi_enabled;
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bool hirq_enabled, virq_enabled;
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bool auto_joypad_poll;
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//$4201
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uint8 pio;
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//$4202-$4203
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uint8 wrmpya;
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uint8 wrmpyb;
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//$4204-$4206
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uint16 wrdiva;
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uint8 wrdivb;
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//$4207-$420a
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uint9 hirq_pos;
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uint9 virq_pos;
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//$420d
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unsigned rom_speed;
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//$4214-$4217
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uint16 rddiv;
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uint16 rdmpy;
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//$4218-$421f
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uint16 joy1;
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uint16 joy2;
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uint16 joy3;
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uint16 joy4;
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} status;
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struct ALU {
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unsigned mpyctr;
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unsigned divctr;
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unsigned shift;
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} alu;
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static void Enter();
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void op_step();
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struct Debugger {
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hook<void (uint24)> op_exec;
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hook<void (uint24)> op_read;
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hook<void (uint24, uint8)> op_write;
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hook<void ()> op_nmi;
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hook<void ()> op_irq;
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} debugger;
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};
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extern CPU cpu;
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