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bsnes/sfc/ppu/ppu.hpp

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Update to v087r07 release. There was a "v087r07pre" release that I unfortunately missed. byuu says (about v087r07pre): Creates the bsnes/processor folder. This has a shared ARM core there which both the GBA and ST018 inherit. There are going to be separate decoders, and revision-specific checks, to support the differences between v3+. In the future, I also want to move the other processor cores here: - GBZ80 (GB, GBC) - 65816 (SNES CPU, SA-1) - NEC uPD (7725, 96050, maybe 7720 just for fun) - Hitachi HG51B169 - SuperFX - SPC700 - 65(C?)02 Basically, the GBA/ST018 forces my hand to start coding a bit more like a multi-system emulator. Right now, the ST018 is broken. Hence the pre. Apparently the GBA core being used now has some bugs. So this'll be a nice way to stress-test the GBA core a bit before we make it to ARMwrestler. byuu says (about v087r07): Both snes/chip/armdsp and gba/cpu use processor/arm now. Fixed THUMB to execute the BL prefix and suffix separately. I can now get the GBA BIOS stuck in some kind of infinite loop. Hooray ... I guess?
2012-03-23 10:43:39 +00:00
struct PPU : Thread, public PPUcounter {
Update to v074r11 release. byuu says: Changelog: - debugger compiles on all three profiles - libsnes compiles on all three platforms (no API changes to libsnes) - memory.cpp : namespace memory removed (wram -> cpu, apuram -> smp, vram, oam, cgram -> ppu) - sa1.cpp : namespace memory removed (SA-1 specific functions merged inline to SA1::bus_read,write) - GameBoy: added serial link support with interrupts and proper 8192hz timing, but obviously it acts as if no other GB is connected to it - GameBoy: added STAT OAM interrupt, and better STAT d1,d0 mode values - UI: since Qt is dead, I've renamed the config files back to bsnes.cfg and bsnes-geometry.cfg - SA1: IRAM was not syncing to CPU on SA-1 side - PPU/Accuracy and PPU/Performance needed Sprite oam renamed to Sprite sprite; so that I could add uint8 oam[544] - makes more sense anyway, OAM = object attribute memory, obj or sprite are better names for Sprite rendering class - more cleanup
2011-01-24 09:03:17 +00:00
uint8 vram[64 * 1024];
uint8 oam[544];
uint8 cgram[512];
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 };
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
alwaysinline void step(unsigned clocks);
alwaysinline void synchronize_cpu();
void latch_counters();
bool interlace() const;
bool overscan() const;
bool hires() const;
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 v074r10 release. byuu says: Major WIP, countless changes. I really went to town on cleaning up the source today with all kinds of new ideas. I'll post the ones I remember, use diff -ru to get the rest. What I like the most is my new within template: template<unsigned lo, unsigned hi> alwaysinline bool within(unsigned addr) { static const unsigned mask = ~(hi ^ lo); return (addr & mask) == lo; } Before, you would see code like this: if((addr & 0xe0e000) == 0x206000) { //$20-3f:6000-7fff The comment is basically necessary, and you have to trust that the mask is right, or do the math yourself. Now, it looks like this: if(within<0x20, 0x3f, 0x6000, 0x7fff>(addr)) { That's the same as within<0x206000, 0x3f7fff>, I just made an SNES-variant to more closely simulate my XML mapping style: 20-3f:6000-7fff. Now obviously this has limitations, it only works in base-2 and it can't manage some tricky edge cases like (addr & 0x408000) == 0x008000 for 00-3f|80-bf:8000-ffff. But for the most part, I'll be using this where I can. The Game Boy is fully ported over to it (via the MBCs), but the SNES only has the BS-X town cartridge moved over so far. SuperFX and SA-1 at the very least could benefit. Next up, since the memory map is now static, there's really no reason to remap the entire thing at power-on and reset. So it is now set up at cartridge load and that's it. I moved the CPU/PPU/WRAM mapping out of memory.cpp and into their respective processors. A bit of duplication only because there are multiple processor cores for the different profiles, but I'm not worried about that. This is also going to be necessary to fix the debugger. Next, Coprocessor::enable() actually does what I initially intended it to now: it is called once to turn a chip on after cartridge load. It's not called on power cycle anymore. This should help fix power-cycle on my serial simulation code, and was needed to map the bus exactly one time. Although most stuff is mapped through XML, some chips still need some manual hooks for monitoring and such (eg S-DD1.) Next, I've started killing off memory::, it was initially an over-reaction to the question of where to put APURAM (in the SMP or DSP?). The idea was to have this namespace that contained all memory for everything. But it was very annoying and tedious, and various chips ignored the convention anyway like ST-0011 RAM, which couldn't work anyway since it is natively uint16 and not uint8. Cx4 will need 24-bit RAM eventually, too. There's 8->24-bit functions in there now, because the HLE code is hideous. So far, all the cartridge.cpp memory:: types have been destroyed. memory::cartrom, memory::cartram become cartridge.rom and cartridge.ram. memory::cartrtc was moved into the SRTC and SPC7110 classes directly. memory::bsxflash was moved into BSXFlash. memory::bsxram and memory::bsxpram were moved into BSXCartridge (the town cartridge). memory::st[AB](rom|ram) were moved into a new area, snes/chip/sufamiturbo. The snes/chip moniker really doesn't work so well, since it also has base units, and the serial communications stuff which is through the controller port, but oh well, now it also has the base structure for the Sufami Turbo cartridge too. So now we have sufamiturbo.slotA.rom, sufamiturbo.slotB.ram, etc. Next, the ST-0010/ST-0011 actually save the data RAM to disk. This wasn't at all compatible with my old system, and I didn't want to keep adding memory types to check inside the main UI cartridge RAM loading and saving routines. So I built a NonVolatileRAM vector inside SNES::Cartridge, and any chip that has memory it wants to save and load from disk can append onto it : data, size, id ("srm", "rtc", "nec", etc) and slot (0 = cartridge, 1 = slot A, 2 = slot B) To load and save memory, we just do a simple: foreach(memory, SNES::cartridge.nvram) load/saveMemory(memory). As a result, you can now keep your save games in F1 Race of Champions II and Hayazashi Nidan Morita Shougi. Technically I think Metal Combat should work this way as well, having the RAM being part of the chip itself, but for now that chip just writes directly into cartridge.ram, so it also technically saves to disk for now. To avoid a potential conflict with a manipulated memory map, BS-X SRAM and PSRAM are now .bss and .bsp, and not .srm and .psr. Honestly I don't like .srm as an extension either, but it doesn't bother me enough to break save RAM compatibility with other emulators, so don't worry about that changing. I finally killed off MappedRAM initializing size to ~0 (-1U). A size of zero means there is no memory there just the same. This was an old holdover for handling MMIO mapping, if I recall correctly. Something about a size of zero on MMIO-Memory objects causing it to wrap the address, so ~0 would let it map direct addresses ... or something. Whatever, that's not needed at all anymore. BSXBase becomes BSXSatellaview, and I've defaulted the device to being attached since it won't affect non-BSX games anyway. Eventually the GUI needs to make that an option. BSXCart becomes BSXCartridge. BSXFlash remains unchanged. I probably need to make Coprocessor::disable() functions now to free up memory on unload, but it shouldn't hurt anything the way it is. libsnes is most definitely broken to all hell and back now, and the debugger is still shot. I suppose we'll need some tricky code to work with the old ID system, and we'll need to add some more IDs for the new memory types.
2011-01-24 08:59:45 +00:00
void enable();
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();
void serialize(serializer&);
PPU();
~PPU();
Update to v085r06 release. byuu says: Lots of debugger enhancements. Memory editor works for CPU-bus only, breakpoint editor does nothing yet. Tracing works, writes to 001-999 files sequentially. Stepping works, too. But only on the CPU. Added "privileged", which becomes "public" if DEBUGGER is defined, "private" otherwise. Meant so the debugger can stab deeply into the cores for state manipulation. Interface is guaranteed to be unstable and dependent upon the accuracy core. The about screen logo adds 100KB onto the source download (won't affect regular bsnes binaries), but too bad. I want some visual flair this time.
2012-02-09 12:53:55 +00:00
privileged:
Update to v092r09 release. byuu says: This will be another massive diff from the previous version. All of higan was updated to use the new foo& bar syntax, and I also updated switch statements to be consistent as well (but not in the disassemblers, was starting to get an RSI just from what I already did.) phoenix/{windows, cocoa, qt} need to be updated to use "string foo" instead of "const string& foo", and after that, the major diffs should be finished. This archive is the first time I'm posting my copy-on-write, size+capacity nall::string class, so any feedback on that is welcome as well.
2013-05-05 09:21:30 +00:00
uint32* surface;
uint32* output;
Update to v068r12 release. (there was no r11 release posted to the WIP thread) byuu says: This took ten hours of mind boggling insanity to pull off. It upgrades the S-PPU dot-based renderer to fetch one tile, and then output all of its pixels before fetching again. It sounds easy enough, but it's insanely difficult. I ended up taking one small shortcut, in that rather than fetch at -7, I fetch at the first instance where a tile is needed to plot to x=0. So if you have {-3 to +4 } as a tile, it fetches at -3. That won't work so well on hardware, if two BGs fetch at the same X offset, they won't have time. I have had no luck staggering the reads at BG1=-7, BG3=-5, etc. While I can shift and fetch just fine, what happens is that when a new tile is fetched in, that gives a new palette, priority, etc; and this ends up happening between two tiles which results in the right-most edges of the screen ending up with the wrong colors and such. Offset-per-tile is cheap as always. Although looking at it, I'm not sure how BG3 could pre-fetch, especially with the way one or two OPT modes can fetch two tiles. There's no magic in Hoffset caching yet, so the SMW1 pixel issue is still there. Mode 7 got a bugfix, it was off-by-one horizontally from the mosaic code. After re-designing the BG mosaic, I ended up needing a separate mosaic for Mode7, and in the process I fixed that bug. The obvious change is that the Chrono Trigger Mode7->Mode2 transition doesn't cause the pendulum to jump anymore. Windows were simplified just a tad. The range testing is shared for all modes now. Ironically, it's a bit slower, but I'll take less code over more speed for the accuracy core. Speaking of speed, because there's so much less calculations per pixel for BGs, performance for the entire emulator has gone up by 30% in the accuracy core. Pretty neat overall, I can maintain 60fps in all but, yeah you can guess can't you?
2010-09-04 03:36:03 +00:00
uint8 ppu1_version;
uint8 ppu2_version;
struct {
bool interlace;
bool overscan;
} display;
First version split into asnes and bsnes.
2010-08-09 13:28:56 +00:00
#include "background/background.hpp"
#include "mmio/mmio.hpp"
#include "screen/screen.hpp"
#include "sprite/sprite.hpp"
#include "window/window.hpp"
Background bg1;
Background bg2;
Background bg3;
Background bg4;
Update to v074r11 release. byuu says: Changelog: - debugger compiles on all three profiles - libsnes compiles on all three platforms (no API changes to libsnes) - memory.cpp : namespace memory removed (wram -> cpu, apuram -> smp, vram, oam, cgram -> ppu) - sa1.cpp : namespace memory removed (SA-1 specific functions merged inline to SA1::bus_read,write) - GameBoy: added serial link support with interrupts and proper 8192hz timing, but obviously it acts as if no other GB is connected to it - GameBoy: added STAT OAM interrupt, and better STAT d1,d0 mode values - UI: since Qt is dead, I've renamed the config files back to bsnes.cfg and bsnes-geometry.cfg - SA1: IRAM was not syncing to CPU on SA-1 side - PPU/Accuracy and PPU/Performance needed Sprite oam renamed to Sprite sprite; so that I could add uint8 oam[544] - makes more sense anyway, OAM = object attribute memory, obj or sprite are better names for Sprite rendering class - more cleanup
2011-01-24 09:03:17 +00:00
Sprite sprite;
First version split into asnes and bsnes.
2010-08-09 13:28:56 +00:00
Window window;
Screen screen;
static void Enter();
void add_clocks(unsigned);
void scanline();
void frame();
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
friend class PPU::Background;
friend class PPU::Sprite;
friend class PPU::Window;
friend class PPU::Screen;
friend class Video;
Update to v085r06 release. byuu says: Lots of debugger enhancements. Memory editor works for CPU-bus only, breakpoint editor does nothing yet. Tracing works, writes to 001-999 files sequentially. Stepping works, too. But only on the CPU. Added "privileged", which becomes "public" if DEBUGGER is defined, "private" otherwise. Meant so the debugger can stab deeply into the cores for state manipulation. Interface is guaranteed to be unstable and dependent upon the accuracy core. The about screen logo adds 100KB onto the source download (won't affect regular bsnes binaries), but too bad. I want some visual flair this time.
2012-02-09 12:53:55 +00:00
struct Debugger {
hook<void (uint16)> vram_read;
hook<void (uint16)> oam_read;
hook<void (uint16)> cgram_read;
hook<void (uint16, uint8)> vram_write;
hook<void (uint16, uint8)> oam_write;
hook<void (uint16, uint8)> cgram_write;
} debugger;
First version split into asnes and bsnes.
2010-08-09 13:28:56 +00:00
};
Update to v085r03 release. byuu says: Changelog: - fixed cursor being visible under Metacity window manager (hopefully doesn't cause regression with other WMs) - show normal cursor when using SDL video driver - added menu accelerators (meh, why not?) - removed debugvirtual, ChipDebugger and chip/debugger functionality entirely - alt/smp disassembler moved up - fixed alt/smp incw/decw instructions (unsigned->uint16 for internal variables) My plan going forward for a debugger is not to hardcode functionality that causes the 10-15% slowdown right into the emulator itself. Instead, I'm going to make a callback class, which will be a specialized version of nall::function: - can call function even if not assigned (results in no-op, return type must have a trivial default constructor) - if compiled without #define DEBUGGER, the entire thing turns into a huge no-op; and will be eliminated entirely when compiled - strategically place the functions: cb_step, cb_read, cb_write, etc. From here, the ui-debugger GUI will bind the callbacks, implement breakpoint checking, usage table generation, etc itself. I'll probably have to add some breakout commands to exit the emulation core prior to a frame event in some cases as well. I didn't initially want any debugger-related stuff in the base cores, but the #if debugger sCPUDebugger #else sCPU #endif stuff was already more of a burden than this will be.
2012-02-04 09:23:53 +00:00
extern PPU ppu;