ShuriZma
/
bsnes
mirror of https://github.com/bsnes-emu/bsnes.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
bsnes/snes/cpu/cpu.hpp

134 lines
2.5 KiB
C++
Raw Normal View History

Update to 20100809 release. byuu says: This adds some sync.sh improvements to make it handle errors more gracefully. It also updates asnes a good bit. All of the four base processors now have all publicly accessible functions right at the top of the main headers, and everything else is private. This is to allow these headers to essentially take the place of the previous base classes in the old bsnes-merged format. So if there's something public there, you need to implement that exact function to make your own module. I removed the frame counter from the PPU, as it has nothing to do with emulation. That now resides inside the Qt -> SNES interface code. Quite amazing, I was actually saving the frame counter into the save state files before, yuck. Removed some baggage in the System class: it was friending a bunch of long-dead functions and classes. Forgot to re-add the CHEAT_SYSTEM define to info.hpp, so that's been put back.
2010-08-09 13:33:44 +00:00
class CPU : public Processor, public CPUcore, public PPUcounter, public MMIO {
First version split into asnes and bsnes.
2010-08-09 13:28:56 +00:00
public:
Updated to v067r21 release. byuu says: This moves toward a profile-selection mode. Right now, it is incomplete. There are three binaries, one for each profile. The GUI selection doesn't actually do anything yet. There will be a launcher in a future release that loads each profile's respective binary. I reverted away from blargg's SMP library for the time being, in favor of my own. This will fix most of the csnes/bsnes-performance bugs. This causes a 10% speed hit on 64-bit platforms, and a 15% speed hit on 32-bit platforms. I hope to be able to regain that speed in the future, I may also experiment with creating my own fast-SMP core which drops bus hold delays and TEST register support (never used by anything, ever.) Save states now work in all three cores, but they are not cross-compatible. The profile name is stored in the description field of the save states, and it won't load a state if the profile name doesn't match. The debugger only works on the research target for now. Give it time and it will return for the other targets. Other than that, let's please resume testing on all three once again. See how far we get this time :) I can confirm the following games have issues on the performance profile: - Armored Police Metal Jacket (minor logo flickering, not a big deal) - Chou Aniki (won't start, so obviously unplayable) - Robocop vs The Terminator (major in-game flickering, unplayable) Anyone still have that gigantic bsnes thread archive from the ZSNES forum? Maybe I posted about how to fix those two broken games in there, heh. I really want to release this as v1.0, but my better judgment says we need to give it another week. Damn.
2010-10-20 11:22:44 +00:00
enum : bool { Threaded = true };
First version split into asnes and bsnes.
2010-08-09 13:28:56 +00:00
array<Processor*> coprocessors;
alwaysinline void step(unsigned clocks);
alwaysinline void synchronize_smp();
void synchronize_ppu();
void synchronize_coprocessor();
Update to 20100809 release. byuu says: This adds some sync.sh improvements to make it handle errors more gracefully. It also updates asnes a good bit. All of the four base processors now have all publicly accessible functions right at the top of the main headers, and everything else is private. This is to allow these headers to essentially take the place of the previous base classes in the old bsnes-merged format. So if there's something public there, you need to implement that exact function to make your own module. I removed the frame counter from the PPU, as it has nothing to do with emulation. That now resides inside the Qt -> SNES interface code. Quite amazing, I was actually saving the frame counter into the save state files before, yuck. Removed some baggage in the System class: it was friending a bunch of long-dead functions and classes. Forgot to re-add the CHEAT_SYSTEM define to info.hpp, so that's been put back.
2010-08-09 13:33:44 +00:00
uint8 pio();
bool joylatch();
alwaysinline bool interrupt_pending() { return status.interrupt_pending; }
alwaysinline uint8 port_read(uint8 port) { return apu_port[port & 3]; }
alwaysinline void port_write(uint8 port, uint8 data) { apu_port[port & 3] = data; }
First version split into asnes and bsnes.
2010-08-09 13:28:56 +00:00
Updated to v067r21 release. byuu says: This moves toward a profile-selection mode. Right now, it is incomplete. There are three binaries, one for each profile. The GUI selection doesn't actually do anything yet. There will be a launcher in a future release that loads each profile's respective binary. I reverted away from blargg's SMP library for the time being, in favor of my own. This will fix most of the csnes/bsnes-performance bugs. This causes a 10% speed hit on 64-bit platforms, and a 15% speed hit on 32-bit platforms. I hope to be able to regain that speed in the future, I may also experiment with creating my own fast-SMP core which drops bus hold delays and TEST register support (never used by anything, ever.) Save states now work in all three cores, but they are not cross-compatible. The profile name is stored in the description field of the save states, and it won't load a state if the profile name doesn't match. The debugger only works on the research target for now. Give it time and it will return for the other targets. Other than that, let's please resume testing on all three once again. See how far we get this time :) I can confirm the following games have issues on the performance profile: - Armored Police Metal Jacket (minor logo flickering, not a big deal) - Chou Aniki (won't start, so obviously unplayable) - Robocop vs The Terminator (major in-game flickering, unplayable) Anyone still have that gigantic bsnes thread archive from the ZSNES forum? Maybe I posted about how to fix those two broken games in there, heh. I really want to release this as v1.0, but my better judgment says we need to give it another week. Damn.
2010-10-20 11:22:44 +00:00
void enter();
Update to 20100809 release. byuu says: This adds some sync.sh improvements to make it handle errors more gracefully. It also updates asnes a good bit. All of the four base processors now have all publicly accessible functions right at the top of the main headers, and everything else is private. This is to allow these headers to essentially take the place of the previous base classes in the old bsnes-merged format. So if there's something public there, you need to implement that exact function to make your own module. I removed the frame counter from the PPU, as it has nothing to do with emulation. That now resides inside the Qt -> SNES interface code. Quite amazing, I was actually saving the frame counter into the save state files before, yuck. Removed some baggage in the System class: it was friending a bunch of long-dead functions and classes. Forgot to re-add the CHEAT_SYSTEM define to info.hpp, so that's been put back.
2010-08-09 13:33:44 +00:00
void power();
void reset();
First version split into asnes and bsnes.
2010-08-09 13:28:56 +00:00
Update to 20100809 release. byuu says: This adds some sync.sh improvements to make it handle errors more gracefully. It also updates asnes a good bit. All of the four base processors now have all publicly accessible functions right at the top of the main headers, and everything else is private. This is to allow these headers to essentially take the place of the previous base classes in the old bsnes-merged format. So if there's something public there, you need to implement that exact function to make your own module. I removed the frame counter from the PPU, as it has nothing to do with emulation. That now resides inside the Qt -> SNES interface code. Quite amazing, I was actually saving the frame counter into the save state files before, yuck. Removed some baggage in the System class: it was friending a bunch of long-dead functions and classes. Forgot to re-add the CHEAT_SYSTEM define to info.hpp, so that's been put back.
2010-08-09 13:33:44 +00:00
void serialize(serializer&);
CPU();
~CPU();
private:
First version split into asnes and bsnes.
2010-08-09 13:28:56 +00:00
#include "dma/dma.hpp"
#include "memory/memory.hpp"
#include "mmio/mmio.hpp"
#include "timing/timing.hpp"
Update to 20100809 release. byuu says: This adds some sync.sh improvements to make it handle errors more gracefully. It also updates asnes a good bit. All of the four base processors now have all publicly accessible functions right at the top of the main headers, and everything else is private. This is to allow these headers to essentially take the place of the previous base classes in the old bsnes-merged format. So if there's something public there, you need to implement that exact function to make your own module. I removed the frame counter from the PPU, as it has nothing to do with emulation. That now resides inside the Qt -> SNES interface code. Quite amazing, I was actually saving the frame counter into the save state files before, yuck. Removed some baggage in the System class: it was friending a bunch of long-dead functions and classes. Forgot to re-add the CHEAT_SYSTEM define to info.hpp, so that's been put back.
2010-08-09 13:33:44 +00:00
uint8 cpu_version;
First version split into asnes and bsnes.
2010-08-09 13:28:56 +00:00
struct Status {
bool interrupt_pending;
uint16 interrupt_vector;
unsigned clock_count;
unsigned line_clocks;
//timing
bool irq_lock;
unsigned dram_refresh_position;
bool dram_refreshed;
unsigned hdma_init_position;
bool hdma_init_triggered;
unsigned hdma_position;
bool hdma_triggered;
bool nmi_valid;
bool nmi_line;
bool nmi_transition;
bool nmi_pending;
bool nmi_hold;
bool irq_valid;
bool irq_line;
bool irq_transition;
bool irq_pending;
bool irq_hold;
bool reset_pending;
//DMA
bool dma_active;
unsigned dma_counter;
unsigned dma_clocks;
bool dma_pending;
bool hdma_pending;
bool hdma_mode; //0 = init, 1 = run
//MMIO
//$2181-$2183
uint32 wram_addr;
//$4016-$4017
bool joypad_strobe_latch;
uint32 joypad1_bits;
uint32 joypad2_bits;
//$4200
bool nmi_enabled;
bool hirq_enabled, virq_enabled;
bool auto_joypad_poll;
//$4201
uint8 pio;
//$4202-$4203
uint8 wrmpya;
uint8 wrmpyb;
//$4204-$4206
uint16 wrdiva;
uint8 wrdivb;
//$4207-$420a
uint16 hirq_pos, virq_pos;
//$420d
unsigned rom_speed;
//$4214-$4217
uint16 rddiv;
uint16 rdmpy;
//$4218-$421f
uint8 joy1l, joy1h;
uint8 joy2l, joy2h;
uint8 joy3l, joy3h;
uint8 joy4l, joy4h;
} status;
struct ALU {
unsigned mpyctr;
unsigned divctr;
unsigned shift;
} alu;
Update to 20100809 release. byuu says: This adds some sync.sh improvements to make it handle errors more gracefully. It also updates asnes a good bit. All of the four base processors now have all publicly accessible functions right at the top of the main headers, and everything else is private. This is to allow these headers to essentially take the place of the previous base classes in the old bsnes-merged format. So if there's something public there, you need to implement that exact function to make your own module. I removed the frame counter from the PPU, as it has nothing to do with emulation. That now resides inside the Qt -> SNES interface code. Quite amazing, I was actually saving the frame counter into the save state files before, yuck. Removed some baggage in the System class: it was friending a bunch of long-dead functions and classes. Forgot to re-add the CHEAT_SYSTEM define to info.hpp, so that's been put back.
2010-08-09 13:33:44 +00:00
static void Enter();
void op_irq();
debugvirtual void op_step();
First version split into asnes and bsnes.
2010-08-09 13:28:56 +00:00
friend class CPUDebugger;
};
#if defined(DEBUGGER)
#include "debugger/debugger.hpp"
extern CPUDebugger cpu;
#else
extern CPU cpu;
#endif