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bsnes/higan/gba/cpu/cpu.hpp

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Update to v087r14 release. byuu says: Fixed aforementioned issues. [From a previous post: - mul was using r(d) instead of r(n) for accumulate. - mull didn't remove c/v clear. - APU register mask was broken, so SOUNDBIAS was reading out wrong. - APU was only mapping 0x088 and not 0x089 as well. - Halfword reads in CPU+PPU+APU were all reading from the low address each time.] All CPU+PPU registers are now hooked up (not that they do anything.) SOUNDBIAS for APU was hooked up, got tired of working on it for the rest :P I recall from the GB APU that you can't just assign values for the APU MMIO regs. They do odd reload things as well. Also, was using MMIO read code like this: return ( (flaga << 0) || (flagb << 1) || (flagc << 2) ); Logical or doesn't work so well with building flags :P Bad habit from how I split multiple conditionals across several lines. So ... r14 is basically what r13 should have been yesterday, delaying my schedule by yet another day :(
2012-04-01 01:41:15 +00:00
struct CPU : Processor::ARM, Thread, MMIO {
Update to v087r26 release. byuu says: Changelog: - fixed FIFO[1] reset behavior (fixes audio in Sword of Mana) - added FlashROM emulation (both sizes) - GBA parses RAM settings from manifest.xml now - save RAM is written to disk now - added save state support (it's currently broken, though) - fixed ROM/RAM access timings - open bus should mostly work (we don't do the PC+12 stuff yet) - emulated the undocumented memory control register (mirror IWRAM, disable I+EWRAM, EWRAM wait state count) - emulated keypad interrupts - emulated STOP (freezes video, audio, DMA and timers; only breaks on keypad IRQs) - probably a lot more, it was a long night ... Show stoppers, missing things, broken things, etc: - ST018 is still completely broken - GBC audio sequencer apparently needs work - GBA audio FIFO buffer seems too quiet - PHI / ROM prefetch needs to be emulated (no idea on how to do this, especially PHI) - SOUNDBIAS 64/128/256khz modes should output at that resolution (really, we need to simulate PWM properly, no idea on how to do this) - object mosaic top-left coordinates are wrong (minor, fixing will actually make the effect look worse) - need to emulate PPU greenswap and color palette distortion (no idea on how do this) - need GBA save type database (I would also LIKE to blacklist / patch-out trainers, but that's a discussion for another day.) - some ARM ops advance the prefetch buffer, so you can read PC+12 in some cases
2012-04-16 12:19:39 +00:00
uint8 *iwram;
uint8 *ewram;
Update to v087r11 release. byuu says: Added all of the above fixes and changes. [A lot of individual fixes for the ARM core from Cydrak - Ed.] Also new is pipeline_decode() to fetch data, and IME/IE/IF support, and an ARM::processor.irqline flag that triggers IRQs at 0x18. Only Vblank is hooked up, which is what SWI 4 was waiting on previously. I'm sure my interrupt support is horribly broken and wrong. I was never able to really figure out IE/IF on the Game Boy, so there's no question this is even worse. It's now going crazy and writing 0 to IE forever now after the Vblank IRQ triggers.
2012-03-29 11:58:10 +00:00
#include "registers.hpp"
Update to v087r16 release. byuu says: Fixed the r15 mask per Cydrak. Added DMA support (immediate + Vblank + Hblank + HDMA) with IRQ support. Basically only missing FIFO reload mode for the APU on channel 2. Added background linear renderer (tilemap mode.) Added really inefficient pixel priority selector, so that all BGs+OBJ could be visible onscreen at the same time. As a result of the above: * Mr. Driller is our first fully playable game * Bakunetsu Dodge Ball Fighters is also fully playable * Pinobee no Daibouken is also fully playable Most games (15 of 16 tested) are now showing *something*, many things look really really good in fact. Absolutely essential missing components: - APU - CPU timers and their interrupts - DMA FIFO mode - OBJ affine mode - BG affine mode - BG bitmap mode - PPU windows (BG and OBJ) - PPU mosaic - PPU blending modes - SRAM / EEPROM (going to rely on a database, not heuristics. Homebrew will require a manifest file.)
2012-04-03 23:50:40 +00:00
#include "state.hpp"
Update to v087r04 release. byuu says: GBA stuff re-added. Only thing missing that was there before is the ARM branch opcode. Since we're going to be staring at it for a very long time, I added a more interesting test video pattern. Went from 6fps to 912fps. Amazing what being able to divide can do for a frame rate.
2012-03-19 11:19:53 +00:00
static void Enter();
Update to v087r26 release. byuu says: Changelog: - fixed FIFO[1] reset behavior (fixes audio in Sword of Mana) - added FlashROM emulation (both sizes) - GBA parses RAM settings from manifest.xml now - save RAM is written to disk now - added save state support (it's currently broken, though) - fixed ROM/RAM access timings - open bus should mostly work (we don't do the PC+12 stuff yet) - emulated the undocumented memory control register (mirror IWRAM, disable I+EWRAM, EWRAM wait state count) - emulated keypad interrupts - emulated STOP (freezes video, audio, DMA and timers; only breaks on keypad IRQs) - probably a lot more, it was a long night ... Show stoppers, missing things, broken things, etc: - ST018 is still completely broken - GBC audio sequencer apparently needs work - GBA audio FIFO buffer seems too quiet - PHI / ROM prefetch needs to be emulated (no idea on how to do this, especially PHI) - SOUNDBIAS 64/128/256khz modes should output at that resolution (really, we need to simulate PWM properly, no idea on how to do this) - object mosaic top-left coordinates are wrong (minor, fixing will actually make the effect look worse) - need to emulate PPU greenswap and color palette distortion (no idea on how do this) - need GBA save type database (I would also LIKE to blacklist / patch-out trainers, but that's a discussion for another day.) - some ARM ops advance the prefetch buffer, so you can read PC+12 in some cases
2012-04-16 12:19:39 +00:00
void main();
Update to v087r04 release. byuu says: GBA stuff re-added. Only thing missing that was there before is the ARM branch opcode. Since we're going to be staring at it for a very long time, I added a more interesting test video pattern. Went from 6fps to 912fps. Amazing what being able to divide can do for a frame rate.
2012-03-19 11:19:53 +00:00
void step(unsigned clocks);
Update to v087r26 release. byuu says: Changelog: - fixed FIFO[1] reset behavior (fixes audio in Sword of Mana) - added FlashROM emulation (both sizes) - GBA parses RAM settings from manifest.xml now - save RAM is written to disk now - added save state support (it's currently broken, though) - fixed ROM/RAM access timings - open bus should mostly work (we don't do the PC+12 stuff yet) - emulated the undocumented memory control register (mirror IWRAM, disable I+EWRAM, EWRAM wait state count) - emulated keypad interrupts - emulated STOP (freezes video, audio, DMA and timers; only breaks on keypad IRQs) - probably a lot more, it was a long night ... Show stoppers, missing things, broken things, etc: - ST018 is still completely broken - GBC audio sequencer apparently needs work - GBA audio FIFO buffer seems too quiet - PHI / ROM prefetch needs to be emulated (no idea on how to do this, especially PHI) - SOUNDBIAS 64/128/256khz modes should output at that resolution (really, we need to simulate PWM properly, no idea on how to do this) - object mosaic top-left coordinates are wrong (minor, fixing will actually make the effect look worse) - need to emulate PPU greenswap and color palette distortion (no idea on how do this) - need GBA save type database (I would also LIKE to blacklist / patch-out trainers, but that's a discussion for another day.) - some ARM ops advance the prefetch buffer, so you can read PC+12 in some cases
2012-04-16 12:19:39 +00:00
void sync_step(unsigned clocks);
Update to v087r19 release. byuu says: Changelog: - added FIFO buffer emulation (with DMA and all that jazz) [Cydrak] - fixed timers and vcounter assign [Cydrak] - emulated EEPROM (you have to change size manually for 14-bit mode, we need a database badly now) [SMA runs now] - removed OAM array, now decoding directly to struct Object {} [128] and ObjectParam {} [32] (faster this way) - check forceblank (still doesn't remove all garble between transitions, though??) - lots of other stuff Delete your settings.cfg, or manually change frequencyGBA to 32768, or bad things will happen (this may change back to 256KHz-4MHz later.) 15 of 16 games are fully playable now, and look and sound great. The major missing detail right now is PPU blending support, and we really need to optimize the hell out of the code.
2012-04-09 06:19:32 +00:00
Update to v087r25 release. byuu says: (r24 was a point release during merging of changes.) This release is almost entirely Cydrak's direct work: - Added ARM::sequential() and some WAITCNT timings - Added Bus::io(uint32 pc), intended for prefetch timing - Added ARM::load() with data rotation (fixed Mother 3 graphics) - Added ARM::store() for data mirroring - LDM, STM, and instruction fetch still use read/write() - ARM::vector() no longer unmasks FIQs - Set THUMB shifter flags via bit(), consistent with ARM - Replace shifter loops with conditional tests My changes: - fixed sprite clipping on left-edge of screen - added first system folder, GBA.system - sudo make install is now make install - make install will create GBA.system for you in your home folder Windows users, take data/GBA.system and put it in the same folder as bsnes.exe, and give it a BIOS named bios.rom Or place it in your home folder (%APPDATA%/bsnes) Also note that this is highly experimental, I'll probably be changing things a lot before release. EDIT: I botched the cartridge timing change. Will fix in r26. It'll still run a bit too fast for now, unfortunately.
2012-04-15 06:49:56 +00:00
void bus_idle(uint32 addr);
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
uint32 bus_read(uint32 addr, uint32 size);
void bus_write(uint32 addr, uint32 size, uint32 word);
Update to v087r04 release. byuu says: GBA stuff re-added. Only thing missing that was there before is the ARM branch opcode. Since we're going to be staring at it for a very long time, I added a more interesting test video pattern. Went from 6fps to 912fps. Amazing what being able to divide can do for a frame rate.
2012-03-19 11:19:53 +00:00
Update to v087r26 release. byuu says: Changelog: - fixed FIFO[1] reset behavior (fixes audio in Sword of Mana) - added FlashROM emulation (both sizes) - GBA parses RAM settings from manifest.xml now - save RAM is written to disk now - added save state support (it's currently broken, though) - fixed ROM/RAM access timings - open bus should mostly work (we don't do the PC+12 stuff yet) - emulated the undocumented memory control register (mirror IWRAM, disable I+EWRAM, EWRAM wait state count) - emulated keypad interrupts - emulated STOP (freezes video, audio, DMA and timers; only breaks on keypad IRQs) - probably a lot more, it was a long night ... Show stoppers, missing things, broken things, etc: - ST018 is still completely broken - GBC audio sequencer apparently needs work - GBA audio FIFO buffer seems too quiet - PHI / ROM prefetch needs to be emulated (no idea on how to do this, especially PHI) - SOUNDBIAS 64/128/256khz modes should output at that resolution (really, we need to simulate PWM properly, no idea on how to do this) - object mosaic top-left coordinates are wrong (minor, fixing will actually make the effect look worse) - need to emulate PPU greenswap and color palette distortion (no idea on how do this) - need GBA save type database (I would also LIKE to blacklist / patch-out trainers, but that's a discussion for another day.) - some ARM ops advance the prefetch buffer, so you can read PC+12 in some cases
2012-04-16 12:19:39 +00:00
void keypad_run();
Update to v087r04 release. byuu says: GBA stuff re-added. Only thing missing that was there before is the ARM branch opcode. Since we're going to be staring at it for a very long time, I added a more interesting test video pattern. Went from 6fps to 912fps. Amazing what being able to divide can do for a frame rate.
2012-03-19 11:19:53 +00:00
void power();
Update to v087r14 release. byuu says: Fixed aforementioned issues. [From a previous post: - mul was using r(d) instead of r(n) for accumulate. - mull didn't remove c/v clear. - APU register mask was broken, so SOUNDBIAS was reading out wrong. - APU was only mapping 0x088 and not 0x089 as well. - Halfword reads in CPU+PPU+APU were all reading from the low address each time.] All CPU+PPU registers are now hooked up (not that they do anything.) SOUNDBIAS for APU was hooked up, got tired of working on it for the rest :P I recall from the GB APU that you can't just assign values for the APU MMIO regs. They do odd reload things as well. Also, was using MMIO read code like this: return ( (flaga << 0) || (flagb << 1) || (flagc << 2) ); Logical or doesn't work so well with building flags :P Bad habit from how I split multiple conditionals across several lines. So ... r14 is basically what r13 should have been yesterday, delaying my schedule by yet another day :(
2012-04-01 01:41:15 +00:00
uint8 read(uint32 addr);
void write(uint32 addr, uint8 byte);
Update to v087r08 release. byuu says: Added some more ARM opcodes, hooked up MMIO. Bind it with mmio[(addr 000-3ff)] = this; inside CPU/PPU/APU, goes to read(), write(). Also moved the Hitachi HG51B core to processor/, and split it apart from the snes/chip/hitachidsp implementation. This one actually worked really well. Very clean split between MMIO/DMA and the processor core. I may move a more generic DMA function inside the core, not sure yet. I still believe the HG51B169 to be a variant of the HG51BS family, but given they're meant to be incredibly flexible microcontrollers, it's possible that each variant gets its own instruction set. So, who knows. We'll worry about it if we ever find another HG51B DSP, I guess. GBA BIOS is constantly reading from 04000300, but it never writes. If I return prng()&1, I can get it to proceed until it hits a bad opcode (stc opcode, which the GBA lacks a coprocessor so ... bad codepath.) Without it, it just reads that register forever and keeps resetting the system, or something ... I guess we're going to have to try and get ARMwrestler working, because the BIOS seems to need too much emulation code to do anything at all.
2012-03-24 07:52:36 +00:00
Update to v087r26 release. byuu says: Changelog: - fixed FIFO[1] reset behavior (fixes audio in Sword of Mana) - added FlashROM emulation (both sizes) - GBA parses RAM settings from manifest.xml now - save RAM is written to disk now - added save state support (it's currently broken, though) - fixed ROM/RAM access timings - open bus should mostly work (we don't do the PC+12 stuff yet) - emulated the undocumented memory control register (mirror IWRAM, disable I+EWRAM, EWRAM wait state count) - emulated keypad interrupts - emulated STOP (freezes video, audio, DMA and timers; only breaks on keypad IRQs) - probably a lot more, it was a long night ... Show stoppers, missing things, broken things, etc: - ST018 is still completely broken - GBC audio sequencer apparently needs work - GBA audio FIFO buffer seems too quiet - PHI / ROM prefetch needs to be emulated (no idea on how to do this, especially PHI) - SOUNDBIAS 64/128/256khz modes should output at that resolution (really, we need to simulate PWM properly, no idea on how to do this) - object mosaic top-left coordinates are wrong (minor, fixing will actually make the effect look worse) - need to emulate PPU greenswap and color palette distortion (no idea on how do this) - need GBA save type database (I would also LIKE to blacklist / patch-out trainers, but that's a discussion for another day.) - some ARM ops advance the prefetch buffer, so you can read PC+12 in some cases
2012-04-16 12:19:39 +00:00
uint32 iwram_read(uint32 addr, uint32 size);
void iwram_write(uint32 addr, uint32 size, uint32 word);
uint32 ewram_read(uint32 addr, uint32 size);
void ewram_write(uint32 addr, uint32 size, uint32 word);
Update to v087r16 release. byuu says: Fixed the r15 mask per Cydrak. Added DMA support (immediate + Vblank + Hblank + HDMA) with IRQ support. Basically only missing FIFO reload mode for the APU on channel 2. Added background linear renderer (tilemap mode.) Added really inefficient pixel priority selector, so that all BGs+OBJ could be visible onscreen at the same time. As a result of the above: * Mr. Driller is our first fully playable game * Bakunetsu Dodge Ball Fighters is also fully playable * Pinobee no Daibouken is also fully playable Most games (15 of 16 tested) are now showing *something*, many things look really really good in fact. Absolutely essential missing components: - APU - CPU timers and their interrupts - DMA FIFO mode - OBJ affine mode - BG affine mode - BG bitmap mode - PPU windows (BG and OBJ) - PPU mosaic - PPU blending modes - SRAM / EEPROM (going to rely on a database, not heuristics. Homebrew will require a manifest file.)
2012-04-03 23:50:40 +00:00
void dma_run();
Update to v087r18 release. byuu says: Merged Cydrak's r17c changes: - BG affine mode added - BG bitmap mode added - OBJ affine mode added - fixed IRQ bug in THUMB mode (fixed almost every game) - timers added (broke almost every game, whee.) Cydrak is absolutely amazingly awesome and patient. This really wouldn't be happening without him. Also fixed some things from my end, including greatly improved sprite priorities, and a much better priority sorter. Mr. Driller looks a lot better now.
2012-04-07 08:17:49 +00:00
void dma_transfer(Registers::DMA &dma);
Update to v087r30 release. byuu says: Changelog: - DMA channel masks added (some are 27-bit source/target and some are 14-bit length -- hooray, varuint_t class.) - No more state.pending flags. Instead, we set dma.pending flag when we want a transfer (fixes GBA Video - Pokemon audio) [Cydrak] - fixed OBJ Vmosaic [Cydrak, krom] - OBJ cannot read <=0x13fff in BG modes 3-5 (fixes the garbled tile at the top-left of some games) - DMA timing should be much closer to hardware now, but probably not perfect - PPU frame blending uses blargg's bit-perfect, rounded method (slower, but what can you do?) - GBA carts really unload now - added nall/gba/cartridge.hpp: used when there is no manifest. Scans ROMs for library tags, and selects the first valid one found - added EEPROM auto-detection when EEPROM size=0. Forces disk/save state size to 8192 (otherwise states could crash between pre and post detect.) - detects first read after a set read address command when the size is zero, and sets all subsequent bit-lengths to that value, prints detected size to terminal - added nall/nes/cartridge.hpp: moves iNES detection out of emulation core. Important to note: long-term goal is to remove all nall/(system)/cartridge.hpp detections from the core and replace with databases. All in good time. Anyway, the GBA workarounds should work for ~98.5% of the library, if my pre-scanning was correct (~40 games with odd tags. I reject ones without numeric versions now, too.) I think we're basically at a point where we can release a new version now. Compatibility should be relatively high (at least for a first release), and fixes are only going to affect one or two games at a time. I'd like to start doing some major cleaning house internally (rename NES->Famicom, SNES->SuperFamicom and such.) Would be much wiser to do that on a .01 WIP to minimize regressions. The main problems with a release now: - speed is pretty bad, haven't really optimized much yet (not sure how much we can improve it yet, this usually isn't easy) - sound isn't -great-, but the GBA audio sucks anyway :P - couple of known bugs (Sonic X video, etc.)
2012-04-22 10:49:19 +00:00
void dma_vblank();
void dma_hblank();
void dma_hdma();
Update to v087r18 release. byuu says: Merged Cydrak's r17c changes: - BG affine mode added - BG bitmap mode added - OBJ affine mode added - fixed IRQ bug in THUMB mode (fixed almost every game) - timers added (broke almost every game, whee.) Cydrak is absolutely amazingly awesome and patient. This really wouldn't be happening without him. Also fixed some things from my end, including greatly improved sprite priorities, and a much better priority sorter. Mr. Driller looks a lot better now.
2012-04-07 08:17:49 +00:00
Update to v087r21 release. byuu says: Timer speedup added. Boosts Mr. Driller 2 title from 170fps to 400fps. Other games still benefit, but not as amazingly. I don't dip below 160fps ever here. Reverted the memory speed to 2 for everything for now, to fix Castlevania slowdown. We obviously need to add the N/S stuff before we do that. Added linear BG and linear OBJ mosaic-Y. Did not add mosaic-X, or any mosaic to the affine/bitmap modes, because I'm not sure when to apply the compensation. Rewrote layer stuff. It now has two layers (above and below), and it performs the four blending modes as needed. Didn't add semi-transparent sprites because the docs are too confusing. Added a blur filter directly into the PPU for now. This obviously violates my interface, but F-Zero needed it for HUD display. We can remove it when we have an official release with a blur filter available. The filter still doesn't warp colors like a real GBA, because I don't know the formula.
2012-04-10 11:41:35 +00:00
void timer_step(unsigned clocks);
Update to v087r18 release. byuu says: Merged Cydrak's r17c changes: - BG affine mode added - BG bitmap mode added - OBJ affine mode added - fixed IRQ bug in THUMB mode (fixed almost every game) - timers added (broke almost every game, whee.) Cydrak is absolutely amazingly awesome and patient. This really wouldn't be happening without him. Also fixed some things from my end, including greatly improved sprite priorities, and a much better priority sorter. Mr. Driller looks a lot better now.
2012-04-07 08:17:49 +00:00
void timer_increment(unsigned n);
Update to v087r30 release. byuu says: Changelog: - DMA channel masks added (some are 27-bit source/target and some are 14-bit length -- hooray, varuint_t class.) - No more state.pending flags. Instead, we set dma.pending flag when we want a transfer (fixes GBA Video - Pokemon audio) [Cydrak] - fixed OBJ Vmosaic [Cydrak, krom] - OBJ cannot read <=0x13fff in BG modes 3-5 (fixes the garbled tile at the top-left of some games) - DMA timing should be much closer to hardware now, but probably not perfect - PPU frame blending uses blargg's bit-perfect, rounded method (slower, but what can you do?) - GBA carts really unload now - added nall/gba/cartridge.hpp: used when there is no manifest. Scans ROMs for library tags, and selects the first valid one found - added EEPROM auto-detection when EEPROM size=0. Forces disk/save state size to 8192 (otherwise states could crash between pre and post detect.) - detects first read after a set read address command when the size is zero, and sets all subsequent bit-lengths to that value, prints detected size to terminal - added nall/nes/cartridge.hpp: moves iNES detection out of emulation core. Important to note: long-term goal is to remove all nall/(system)/cartridge.hpp detections from the core and replace with databases. All in good time. Anyway, the GBA workarounds should work for ~98.5% of the library, if my pre-scanning was correct (~40 games with odd tags. I reject ones without numeric versions now, too.) I think we're basically at a point where we can release a new version now. Compatibility should be relatively high (at least for a first release), and fixes are only going to affect one or two games at a time. I'd like to start doing some major cleaning house internally (rename NES->Famicom, SNES->SuperFamicom and such.) Would be much wiser to do that on a .01 WIP to minimize regressions. The main problems with a release now: - speed is pretty bad, haven't really optimized much yet (not sure how much we can improve it yet, this usually isn't easy) - sound isn't -great-, but the GBA audio sucks anyway :P - couple of known bugs (Sonic X video, etc.)
2012-04-22 10:49:19 +00:00
void timer_fifo_run(unsigned n);
Update to v087r16 release. byuu says: Fixed the r15 mask per Cydrak. Added DMA support (immediate + Vblank + Hblank + HDMA) with IRQ support. Basically only missing FIFO reload mode for the APU on channel 2. Added background linear renderer (tilemap mode.) Added really inefficient pixel priority selector, so that all BGs+OBJ could be visible onscreen at the same time. As a result of the above: * Mr. Driller is our first fully playable game * Bakunetsu Dodge Ball Fighters is also fully playable * Pinobee no Daibouken is also fully playable Most games (15 of 16 tested) are now showing *something*, many things look really really good in fact. Absolutely essential missing components: - APU - CPU timers and their interrupts - DMA FIFO mode - OBJ affine mode - BG affine mode - BG bitmap mode - PPU windows (BG and OBJ) - PPU mosaic - PPU blending modes - SRAM / EEPROM (going to rely on a database, not heuristics. Homebrew will require a manifest file.)
2012-04-03 23:50:40 +00:00
Update to v087r26 release. byuu says: Changelog: - fixed FIFO[1] reset behavior (fixes audio in Sword of Mana) - added FlashROM emulation (both sizes) - GBA parses RAM settings from manifest.xml now - save RAM is written to disk now - added save state support (it's currently broken, though) - fixed ROM/RAM access timings - open bus should mostly work (we don't do the PC+12 stuff yet) - emulated the undocumented memory control register (mirror IWRAM, disable I+EWRAM, EWRAM wait state count) - emulated keypad interrupts - emulated STOP (freezes video, audio, DMA and timers; only breaks on keypad IRQs) - probably a lot more, it was a long night ... Show stoppers, missing things, broken things, etc: - ST018 is still completely broken - GBC audio sequencer apparently needs work - GBA audio FIFO buffer seems too quiet - PHI / ROM prefetch needs to be emulated (no idea on how to do this, especially PHI) - SOUNDBIAS 64/128/256khz modes should output at that resolution (really, we need to simulate PWM properly, no idea on how to do this) - object mosaic top-left coordinates are wrong (minor, fixing will actually make the effect look worse) - need to emulate PPU greenswap and color palette distortion (no idea on how do this) - need GBA save type database (I would also LIKE to blacklist / patch-out trainers, but that's a discussion for another day.) - some ARM ops advance the prefetch buffer, so you can read PC+12 in some cases
2012-04-16 12:19:39 +00:00
void serialize(serializer&);
Update to v087r04 release. byuu says: GBA stuff re-added. Only thing missing that was there before is the ARM branch opcode. Since we're going to be staring at it for a very long time, I added a more interesting test video pattern. Went from 6fps to 912fps. Amazing what being able to divide can do for a frame rate.
2012-03-19 11:19:53 +00:00
CPU();
Update to v087r26 release. byuu says: Changelog: - fixed FIFO[1] reset behavior (fixes audio in Sword of Mana) - added FlashROM emulation (both sizes) - GBA parses RAM settings from manifest.xml now - save RAM is written to disk now - added save state support (it's currently broken, though) - fixed ROM/RAM access timings - open bus should mostly work (we don't do the PC+12 stuff yet) - emulated the undocumented memory control register (mirror IWRAM, disable I+EWRAM, EWRAM wait state count) - emulated keypad interrupts - emulated STOP (freezes video, audio, DMA and timers; only breaks on keypad IRQs) - probably a lot more, it was a long night ... Show stoppers, missing things, broken things, etc: - ST018 is still completely broken - GBC audio sequencer apparently needs work - GBA audio FIFO buffer seems too quiet - PHI / ROM prefetch needs to be emulated (no idea on how to do this, especially PHI) - SOUNDBIAS 64/128/256khz modes should output at that resolution (really, we need to simulate PWM properly, no idea on how to do this) - object mosaic top-left coordinates are wrong (minor, fixing will actually make the effect look worse) - need to emulate PPU greenswap and color palette distortion (no idea on how do this) - need GBA save type database (I would also LIKE to blacklist / patch-out trainers, but that's a discussion for another day.) - some ARM ops advance the prefetch buffer, so you can read PC+12 in some cases
2012-04-16 12:19:39 +00:00
~CPU();
Update to v087r04 release. byuu says: GBA stuff re-added. Only thing missing that was there before is the ARM branch opcode. Since we're going to be staring at it for a very long time, I added a more interesting test video pattern. Went from 6fps to 912fps. Amazing what being able to divide can do for a frame rate.
2012-03-19 11:19:53 +00:00
};
extern CPU cpu;